Grandes Rocques (Beach) (Guernsey) 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

Sunny intervals changing to partly cloudy by early evening.
Beach safety today
Very large, powerful waves and strong wind
  • • very high likelihood of injury in or near the sea

Tide: Next high tide (7.0m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution
No pollen data.

    7 day forecast for Grandes Rocques (Beach)

    Today (28 March 2026)
    Time
    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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    40%
    20%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed
    NW
    21
    NW
    22
    NW
    22
    NW
    23
    NNW
    24
    NNW
    25
    NNW
    25
    NNW
    25
    NNW
    24
    NNW
    24
    NNW
    23
    NNW
    23
    NNW
    22
    NNW
    20
    Wind gust (mph)
    31
    33
    34
    34
    35
    35
    34
    34
    34
    33
    32
    32
    30
    28
    Visibility
    G
    VG
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    65%
    64%
    64%
    61%
    56%
    55%
    54%
    55%
    55%
    55%
    55%
    55%
    55%
    55%
    UV 3 3 3 3 2 2 1 1 1 - - - - -
    Wind direction and speed
    21
    22
    23
    24
    24
    24
    24
    24
    23
    23
    23
    21
    19
    Height of waves offshore (m)
    1.8
    1.8
    1.8
    1.8
    1.9
    1.9
    2.0
    2.0
    2.0
    2.0
    2.0
    2.0
    1.9
    Period of waves offshore (s)
    16
    16
    15
    15
    15
    15
    15
    15
    15
    15
    14
    14
    14
    Direction of waves offshore
    Sunday (29 March 2026)
    Time
    00:00
    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 Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Light rain Light rain Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    20%
    30%
    30%
    10%
    10%
    20%
    10%
    10%
    20%
    10%
    20%
    20%
    40%
    70%
    50%
    20%
    10%
    Temperature (°C)
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NNW
    18
    NNW
    17
    NNW
    16
    NNW
    15
    NW
    14
    NW
    13
    NW
    12
    WNW
    11
    W
    12
    W
    13
    W
    14
    W
    17
    WSW
    19
    WSW
    21
    WSW
    24
    WSW
    26
    WSW
    27
    WSW
    28
    WSW
    29
    WSW
    28
    W
    28
    W
    28
    W
    27
    Wind gust (mph)
    25
    23
    22
    21
    21
    19
    18
    18
    19
    21
    23
    27
    30
    33
    36
    37
    39
    40
    41
    40
    40
    39
    36
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    M
    M
    P
    P
    Humidity
    55%
    55%
    55%
    55%
    56%
    56%
    57%
    59%
    63%
    64%
    64%
    64%
    67%
    70%
    70%
    75%
    75%
    76%
    81%
    85%
    90%
    92%
    92%
    UV - - - - - 1 1 1 1 1 2 2 2 2 1 1 1 1 1 - - - -
    Wind direction and speed (mph)
    18
    17
    16
    15
    14
    13
    12
    11
    12
    13
    14
    17
    19
    22
    24
    26
    27
    28
    29
    29
    29
    28
    27
    Height of waves offshore (m)
    1.8
    1.7
    1.6
    1.5
    1.4
    1.3
    1.3
    1.2
    1.2
    1.2
    1.2
    1.2
    1.3
    1.4
    1.5
    1.6
    1.8
    1.9
    1.9
    2.1
    2.2
    2.2
    2.3
    Period of waves offshore (s)
    14
    14
    14
    14
    14
    14
    13
    13
    13
    13
    13
    13
    13
    13
    13
    12
    12
    7
    7
    7
    7
    8
    8
    Direction of waves offshore
    Monday (30 March 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 Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals 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
    Chance of precipitation
    10%
    <5%
    10%
    10%
    10%
    20%
    30%
    30%
    20%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    26
    W
    25
    W
    24
    WNW
    24
    WNW
    23
    WNW
    23
    WNW
    22
    NW
    21
    NW
    20
    NW
    20
    NW
    19
    NW
    19
    NW
    18
    NW
    18
    NW
    18
    NW
    18
    NW
    18
    NW
    18
    NW
    18
    NW
    18
    NNW
    18
    NNW
    19
    NNW
    19
    NNW
    18
    Wind gust (mph)
    35
    34
    33
    32
    31
    30
    29
    28
    28
    26
    26
    27
    26
    25
    25
    26
    26
    27
    26
    27
    26
    26
    25
    24
    Visibility (description)
    P
    M
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    92%
    92%
    92%
    91%
    90%
    88%
    89%
    86%
    82%
    77%
    77%
    73%
    72%
    75%
    75%
    75%
    74%
    75%
    74%
    74%
    73%
    73%
    73%
    74%
    UV - - - - - - 1 1 1 1 2 2 3 3 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    26
    25
    24
    24
    23
    23
    22
    21
    20
    20
    20
    20
    19
    18
    18
    18
    18
    18
    18
    18
    19
    19
    19
    18
    Height of waves offshore (m)
    2.3
    2.2
    2.1
    2.0
    2.0
    1.9
    1.9
    1.9
    1.9
    1.9
    1.8
    1.7
    1.7
    1.7
    1.7
    1.7
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    1.8
    Period of waves offshore (s)
    8
    8
    8
    8
    9
    9
    11
    11
    11
    11
    11
    11
    16
    16
    16
    16
    16
    16
    16
    16
    15
    15
    15
    15
    Direction of waves offshore
    Tuesday (31 March 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 Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Sunny intervals Cloudy Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    NNW
    16
    NW
    15
    NW
    15
    NW
    14
    NW
    13
    NW
    12
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    11
    WNW
    12
    WNW
    12
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    14
    NW
    14
    NW
    14
    Wind gust (mph)
    22
    20
    20
    18
    17
    15
    15
    15
    16
    17
    17
    18
    18
    18
    19
    19
    20
    20
    19
    19
    19
    19
    20
    20
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    P
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    Humidity
    76%
    77%
    80%
    82%
    83%
    86%
    90%
    91%
    91%
    91%
    92%
    93%
    93%
    92%
    93%
    93%
    93%
    92%
    92%
    92%
    92%
    91%
    91%
    91%
    UV - - - - - - 1 1 1 1 2 2 3 3 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    16
    15
    15
    14
    13
    13
    12
    13
    12
    12
    13
    13
    14
    14
    14
    14
    15
    15
    15
    15
    15
    15
    15
    16
    Height of waves offshore (m)
    1.7
    1.7
    1.6
    1.6
    1.5
    1.5
    1.5
    1.4
    1.4
    1.4
    1.3
    1.3
    1.3
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.1
    Period of waves offshore (s)
    15
    15
    15
    16
    16
    16
    16
    16
    16
    16
    16
    16
    16
    16
    15
    15
    15
    15
    15
    15
    15
    15
    14
    14
    Direction of waves offshore
    Wednesday (1 April 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    10°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    NW
    14
    NW
    14
    NW
    13
    NW
    13
    NW
    13
    NW
    13
    NW
    12
    NW
    12
    NW
    12
    NW
    12
    NW
    12
    NW
    12
    NW
    12
    NW
    12
    NW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    WNW
    13
    NW
    13
    NW
    14
    WNW
    14
    Wind gust (mph)
    19
    19
    18
    18
    17
    17
    17
    17
    17
    17
    17
    17
    17
    17
    17
    18
    17
    18
    18
    19
    19
    18
    19
    19
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    Humidity
    89%
    88%
    88%
    86%
    86%
    87%
    87%
    86%
    86%
    85%
    84%
    86%
    85%
    84%
    84%
    84%
    84%
    85%
    85%
    85%
    84%
    84%
    84%
    86%
    UV - - - - - - 1 1 1 1 2 2 3 3 3 2 1 1 1 1 - - - -
    Wind direction and speed (mph)
    14
    14
    14
    13
    13
    13
    13
    13
    13
    12
    12
    13
    13
    13
    13
    13
    13
    13
    13
    13
    13
    13
    13
    13
    Height of waves offshore (m)
    1.1
    1.1
    1.1
    1.0
    1.0
    1.0
    1.0
    1.1
    1.1
    1.1
    1.1
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    1.0
    1.1
    1.1
    1.1
    1.1
    Period of waves offshore (s)
    14
    14
    13
    13
    13
    13
    13
    13
    13
    13
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    Direction of waves offshore
    Thursday (2 April 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Overcast Overcast Cloudy Cloudy Sunny intervals Cloudy Cloudy
    Chance of precipitation
    20%
    10%
    10%
    10%
    10%
    20%
    20%
    30%
    30%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    13
    WNW
    13
    NNW
    13
    N
    12
    N
    13
    WSW
    14
    W
    14
    W
    14
    W
    17
    Wind gust (mph)
    18
    19
    19
    18
    18
    20
    20
    23
    25
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    M
    Humidity
    86%
    87%
    86%
    84%
    84%
    83%
    81%
    81%
    81%
    UV - - - 1 2 3 1 1 -
    Wind direction and speed (mph)
    13
    13
    12
    12
    13
    14
    14
    14
    17
    Height of waves offshore (m)
    1.1
    1.1
    1.4
    1.5
    1.5
    1.3
    1.1
    1.0
    0.9
    Period of waves offshore (s)
    12
    12
    12
    11
    11
    11
    11
    11
    11
    Direction of waves offshore
    Friday (3 April 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    30%
    30%
    40%
    30%
    30%
    30%
    20%
    20%
    Temperature (°C)
    10°
    10°
    10°
    11°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    18
    W
    19
    W
    19
    WSW
    20
    WSW
    22
    WSW
    21
    WSW
    22
    WSW
    21
    Wind gust (mph)
    27
    28
    28
    30
    29
    31
    30
    31
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    Humidity
    77%
    76%
    77%
    78%
    76%
    78%
    76%
    75%
    UV - - 1 1 3 1 1 -
    Wind direction and speed (mph)
    18
    Height of waves offshore (m)
    0.8
    Period of waves offshore (s)
    10
    Direction of waves offshore

    Tide times

    Saturday 28 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 28 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 28 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 28 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 29 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 29 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 29 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 29 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 30 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 30 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 30 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 30 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 31 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 31 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 31 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 31 March

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 1 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 1 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 1 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 1 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 2 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 2 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 2 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 2 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 3 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 3 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 3 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 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 3 April

    Tide times and heights are from St. Peter Port tidal station which is 3.4 miles away. So times may be different at this beach. What does this mean?

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

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