Portland Harbour - Sandsfoot Castle (Beach) (Dorset) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.



Forecast days

Overcast.
Beach safety today
Use caution in the sea. Waves can be bigger or stronger than you expect, strong rips likely, the wind may blow you off course
  • • unsafe for novice surfers
  • • paddle boarding not recommended for beginners/intermediate

Tide: Next low tide (1.4m) at

Sunrise iconSunrise:
Sunset iconSunset:
L UV
No pollution data.
No pollen data.

    7 day forecast for Portland Harbour - Sandsfoot Castle (Beach)

    Today (28 December 2025)
    Time
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Cloudy Partly cloudy night Cloudy Cloudy Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    ENE
    12
    ENE
    11
    NE
    10
    NE
    10
    NE
    11
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    Wind gust (mph)
    23
    22
    23
    24
    25
    26
    25
    25
    25
    24
    Visibility
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    74%
    74%
    75%
    75%
    75%
    76%
    77%
    78%
    79%
    82%
    UV 1 1 1 - - - - - - -
    Wind direction and speed
    12
    11
    10
    10
    11
    12
    13
    13
    12
    12
    Height of waves offshore (m)
    0.7
    0.7
    0.6
    0.7
    0.7
    0.6
    0.6
    0.6
    0.6
    0.5
    Period of waves offshore (s)
    6
    6
    6
    6
    6
    6
    7
    6
    6
    6
    Direction of waves offshore
    Monday (29 December 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Overcast Overcast Overcast Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Overcast Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    13
    NE
    13
    NE
    13
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    13
    ENE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    12
    NE
    13
    NE
    13
    NE
    13
    NE
    12
    NE
    12
    Wind gust (mph)
    23
    24
    24
    24
    25
    24
    24
    25
    24
    25
    25
    24
    23
    23
    23
    23
    24
    24
    25
    26
    27
    26
    25
    23
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    83%
    83%
    83%
    84%
    84%
    85%
    86%
    86%
    87%
    86%
    85%
    82%
    75%
    75%
    75%
    75%
    78%
    82%
    80%
    79%
    77%
    76%
    77%
    77%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    12
    12
    12
    12
    12
    12
    12
    12
    13
    13
    13
    13
    13
    13
    13
    12
    12
    12
    13
    13
    13
    13
    12
    12
    Height of waves offshore (m)
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.6
    0.6
    0.6
    0.6
    Period of waves offshore (s)
    6
    6
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    6
    6
    6
    6
    6
    6
    6
    Direction of waves offshore
    Tuesday (30 December 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Overcast Overcast Overcast Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    -2°
    -2°
    -2°
    Wind direction and speed (mph)
    NE
    11
    NE
    11
    NE
    12
    NE
    13
    NE
    14
    NE
    14
    NE
    14
    NE
    14
    NE
    14
    NE
    14
    NE
    14
    NE
    15
    NE
    15
    NE
    15
    NE
    14
    NE
    12
    NE
    11
    NE
    10
    NE
    10
    NE
    11
    NE
    11
    NE
    11
    NE
    10
    NE
    10
    Wind gust (mph)
    23
    22
    23
    24
    27
    28
    28
    29
    28
    28
    27
    26
    27
    25
    25
    24
    23
    22
    22
    21
    21
    21
    21
    19
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    Humidity
    81%
    85%
    85%
    85%
    86%
    85%
    84%
    83%
    81%
    79%
    74%
    67%
    64%
    60%
    60%
    65%
    73%
    78%
    82%
    84%
    85%
    86%
    87%
    88%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    11
    12
    12
    13
    14
    14
    14
    14
    14
    14
    14
    15
    15
    15
    14
    13
    11
    11
    11
    11
    11
    11
    10
    10
    Height of waves offshore (m)
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.7
    0.7
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    7
    7
    6
    6
    6
    6
    6
    6
    6
    15
    15
    15
    15
    15
    Direction of waves offshore
    Wednesday (31 December 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    -2°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -3°
    -2°
    -1°
    -1°
    -1°
    -1°
    -1°
    -1°
    Wind direction and speed (mph)
    NNE
    9
    NNE
    9
    NNE
    8
    NNE
    8
    NNE
    8
    NNE
    8
    NNE
    8
    NNE
    8
    NNE
    7
    N
    7
    N
    6
    N
    6
    N
    5
    N
    5
    NNW
    5
    NNW
    5
    NNW
    4
    NNW
    4
    NNW
    4
    NNW
    4
    NNW
    4
    NNW
    4
    NNW
    4
    NW
    4
    Wind gust (mph)
    19
    18
    17
    17
    17
    16
    15
    15
    14
    14
    13
    11
    10
    9
    9
    9
    9
    8
    9
    9
    9
    10
    10
    10
    Visibility (description)
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    G
    G
    G
    G
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    88%
    88%
    88%
    89%
    89%
    89%
    89%
    90%
    89%
    87%
    81%
    76%
    71%
    67%
    66%
    74%
    84%
    86%
    86%
    85%
    85%
    85%
    85%
    85%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    10
    9
    9
    9
    9
    9
    8
    8
    8
    7
    7
    6
    6
    5
    5
    5
    4
    4
    4
    4
    4
    4
    4
    4
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    15
    15
    15
    15
    15
    15
    14
    14
    14
    14
    14
    14
    14
    14
    14
    13
    13
    13
    13
    13
    13
    13
    12
    12
    Direction of waves offshore
    Thursday (1 January 2026)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    20%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    20%
    30%
    40%
    40%
    30%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    Wind direction and speed (mph)
    NW
    5
    NW
    5
    NW
    5
    WNW
    5
    WNW
    6
    WNW
    7
    W
    8
    W
    9
    W
    10
    W
    10
    W
    11
    W
    13
    W
    14
    W
    15
    W
    15
    W
    15
    W
    14
    W
    13
    W
    13
    W
    13
    W
    13
    W
    12
    WNW
    11
    WNW
    11
    Wind gust (mph)
    10
    10
    10
    11
    14
    14
    15
    17
    17
    20
    22
    24
    26
    26
    26
    27
    26
    26
    27
    27
    24
    25
    24
    24
    Visibility (description)
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    84%
    84%
    84%
    83%
    82%
    81%
    81%
    82%
    82%
    80%
    76%
    75%
    74%
    74%
    76%
    79%
    81%
    83%
    84%
    84%
    86%
    87%
    88%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    4
    4
    5
    5
    6
    7
    8
    10
    10
    11
    12
    13
    14
    15
    15
    14
    14
    13
    13
    13
    13
    12
    11
    11
    Height of waves offshore (m)
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.4
    0.5
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.6
    0.5
    0.5
    Period of waves offshore (s)
    11
    10
    10
    10
    10
    10
    10
    10
    10
    10
    3
    3
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    Direction of waves offshore
    Friday (2 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    Wind direction and speed (mph)
    WNW
    10
    WNW
    9
    NW
    8
    NW
    8
    NW
    11
    NW
    10
    NW
    9
    NW
    9
    Wind gust (mph)
    19
    16
    15
    17
    17
    14
    13
    12
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    88%
    89%
    89%
    88%
    76%
    75%
    85%
    86%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    10
    9
    8
    8
    11
    10
    9
    9
    Height of waves offshore (m)
    0.5
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    Period of waves offshore (s)
    6
    4
    4
    9
    8
    7
    4
    4
    Direction of waves offshore
    Saturday (3 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    Feels like temperature (°C)
    -1°
    -1°
    -2°
    -2°
    -1°
    -2°
    Wind direction and speed (mph)
    NW
    9
    NW
    8
    NW
    9
    NNW
    9
    NNW
    11
    NNW
    10
    NNW
    8
    NW
    8
    Wind gust (mph)
    13
    14
    14
    16
    18
    14
    13
    11
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    86%
    84%
    86%
    83%
    71%
    72%
    83%
    85%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    9
    Height of waves offshore (m)
    0.6
    Period of waves offshore (s)
    11
    Direction of waves offshore

    Tide times

    Sunday 28 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 28 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 28 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 28 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 29 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 29 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 29 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 29 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 30 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 30 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 30 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 30 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 31 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 31 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 31 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 31 December

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 1 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 1 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 1 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 1 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 2 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 2 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 2 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 2 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 3 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 3 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 3 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 3 January

    Tide times and heights are from Chesil Cove tidal station which is 1.9 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Portland Harbour - Sandsfoot Castle (Beach) weather map

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    WARNING
    Flood warnings icon
    Flood warnings in force for England
    Flood warnings in force for England

    South West England weather forecast

    Headline:

    Less windy today bur rather cloudy for most.

    Today:

    Generally dry and cloudy with fleeting brighter moments. Spots of drizzle possible in Devon and Cornwall. Not as windy as on Saturday but the easterly breeze persisting and feeling chilly Maximum temperature 7 °C.

    Tonight:

    Fairly cloudy in many places this evening but prolonged clear periods developing overnight. Patchy mist and freezing fog developing later and turning cold with a frost developing in places. Minimum temperature -1 °C.

    Monday:

    Monday will probably be a brighter day overall with sunny periods once any early fog or low cloud has cleared. Fairly light winds but chilly nonetheless after a cold start. Maximum temperature 6 °C.

    Outlook for Tuesday to Thursday:

    Remaining generally dry to end 2025 with sunny periods at times. Widespread overnight frosts and patchy freezing fog. Perhaps breezier with isolated showers on New Year's Day. Feeling rather cold.

    Updated:

    UK long range weather forecast

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