Cemlyn (Beach) (Isle of Anglesey) 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

Light showers changing to clear by nighttime.
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 (0.8m) at

Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for Cemlyn (Beach)

    Today (3 April 2026)
    Time
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light shower day Light shower day Light shower day Sunny intervals Clear night Clear night Clear night Clear night
    Chance of precipitation
    70%
    70%
    80%
    50%
    50%
    30%
    20%
    <5%
    Temperature
    11°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed
    W
    17
    W
    16
    W
    14
    W
    13
    W
    13
    W
    14
    W
    15
    W
    15
    Wind gust (mph)
    32
    29
    31
    30
    33
    33
    32
    32
    Visibility
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    76%
    75%
    74%
    75%
    75%
    72%
    71%
    68%
    UV 2 1 1 1 - - - -
    Wind direction and speed
    17
    15
    12
    12
    13
    15
    14
    14
    Height of waves offshore (m)
    0.9
    0.9
    0.8
    0.7
    0.7
    0.8
    1.0
    1.1
    Period of waves offshore (s)
    5
    5
    5
    4
    4
    4
    5
    5
    Direction of waves offshore
    Saturday (4 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 Clear night Clear night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Light rain Light shower day Light rain Light rain Light rain Light rain Light rain Light shower day Light shower night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    40%
    30%
    30%
    30%
    60%
    70%
    70%
    50%
    60%
    70%
    ≥95%
    80%
    50%
    20%
    10%
    10%
    Temperature (°C)
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    W
    15
    W
    14
    W
    12
    W
    10
    WSW
    8
    SW
    7
    SSW
    6
    S
    6
    SSE
    6
    SSE
    8
    SE
    10
    SSE
    13
    S
    22
    S
    26
    SSW
    28
    SSW
    29
    SSW
    30
    SSW
    32
    SSW
    33
    SSW
    34
    SW
    35
    SW
    35
    WSW
    34
    WSW
    31
    Wind gust (mph)
    30
    28
    25
    22
    19
    15
    15
    16
    20
    23
    29
    38
    44
    47
    51
    54
    57
    60
    62
    65
    67
    64
    62
    57
    Visibility (description)
    G
    G
    VG
    VG
    VG
    G
    G
    VG
    G
    G
    G
    M
    P
    M
    M
    M
    M
    M
    P
    M
    M
    G
    G
    G
    Humidity
    65%
    66%
    67%
    69%
    73%
    75%
    77%
    77%
    76%
    73%
    72%
    75%
    85%
    84%
    80%
    80%
    80%
    83%
    85%
    83%
    73%
    65%
    63%
    64%
    UV - - - - - - 1 1 1 1 1 1 1 2 2 1 1 1 1 1 - - - -
    Wind direction and speed (mph)
    14
    13
    11
    10
    8
    6
    6
    6
    6
    8
    11
    13
    22
    27
    29
    30
    31
    33
    34
    35
    35
    34
    32
    30
    Height of waves offshore (m)
    1.2
    1.2
    1.2
    1.1
    1.0
    1.0
    0.9
    0.8
    0.6
    0.6
    0.5
    0.5
    0.5
    0.6
    0.9
    1.1
    1.1
    1.1
    1.1
    1.2
    1.3
    1.6
    1.8
    2.0
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    5
    5
    5
    4
    4
    4
    8
    8
    5
    6
    7
    8
    9
    9
    9
    9
    10
    10
    Direction of waves offshore
    Sunday (5 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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    10%
    20%
    20%
    20%
    20%
    20%
    10%
    10%
    20%
    10%
    <5%
    10%
    20%
    20%
    30%
    30%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    28
    WSW
    25
    WSW
    22
    WSW
    20
    WSW
    18
    W
    17
    W
    17
    W
    17
    W
    17
    W
    17
    W
    18
    W
    18
    W
    19
    WSW
    19
    WSW
    19
    WSW
    18
    WSW
    17
    WSW
    16
    WSW
    15
    W
    13
    W
    10
    W
    9
    W
    8
    W
    7
    Wind gust (mph)
    51
    45
    41
    38
    36
    34
    34
    31
    32
    34
    35
    35
    33
    34
    34
    34
    33
    30
    28
    24
    22
    22
    19
    17
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    65%
    65%
    67%
    66%
    68%
    70%
    69%
    69%
    68%
    65%
    62%
    60%
    56%
    54%
    54%
    55%
    54%
    57%
    59%
    66%
    71%
    73%
    75%
    78%
    UV - - - - - - 1 1 1 1 2 3 3 4 3 3 2 1 1 1 - - - -
    Wind direction and speed (mph)
    27
    25
    23
    20
    19
    18
    18
    17
    17
    18
    19
    19
    20
    20
    20
    19
    18
    16
    14
    12
    11
    10
    9
    7
    Height of waves offshore (m)
    2.0
    2.2
    2.1
    2.2
    2.0
    1.9
    1.7
    1.5
    1.3
    1.1
    1.2
    1.2
    1.2
    1.4
    1.4
    1.6
    1.6
    1.5
    1.4
    1.2
    1.1
    1.0
    1.0
    0.9
    Period of waves offshore (s)
    9
    7
    7
    7
    7
    7
    7
    6
    6
    6
    5
    5
    5
    5
    5
    6
    6
    6
    6
    6
    6
    5
    5
    5
    Direction of waves offshore
    Monday (6 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 Clear night Clear night Clear night Clear 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 Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    11°
    12°
    12°
    13°
    13°
    14°
    13°
    12°
    10°
    Feels like temperature (°C)
    10°
    11°
    11°
    11°
    10°
    Wind direction and speed (mph)
    WSW
    6
    SSW
    6
    S
    6
    S
    6
    SSE
    6
    SSE
    7
    SSE
    8
    SSE
    9
    SSE
    10
    SSE
    11
    S
    13
    S
    15
    S
    15
    S
    15
    S
    15
    S
    14
    SSE
    13
    SSE
    13
    SE
    11
    SE
    9
    SE
    9
    SE
    9
    SE
    9
    SE
    8
    Wind gust (mph)
    13
    12
    11
    13
    15
    17
    20
    22
    23
    25
    25
    25
    25
    24
    22
    20
    21
    19
    20
    21
    22
    22
    23
    23
    Visibility (description)
    G
    G
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    81%
    82%
    82%
    82%
    82%
    83%
    84%
    82%
    76%
    69%
    64%
    61%
    57%
    55%
    54%
    52%
    52%
    54%
    56%
    65%
    71%
    72%
    73%
    75%
    UV - - - - - - 1 1 1 1 2 2 3 3 3 2 2 1 1 1 1 - - -
    Wind direction and speed (mph)
    6
    6
    6
    6
    6
    7
    8
    9
    10
    11
    13
    15
    16
    16
    16
    15
    14
    13
    11
    9
    9
    9
    9
    9
    Height of waves offshore (m)
    0.9
    0.8
    0.7
    0.6
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    5
    5
    5
    4
    4
    4
    4
    6
    9
    9
    9
    5
    5
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    7
    Direction of waves offshore
    Tuesday (7 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 Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    40%
    40%
    40%
    50%
    50%
    50%
    40%
    40%
    40%
    30%
    30%
    30%
    Temperature (°C)
    10°
    10°
    10°
    11°
    13°
    15°
    16°
    17°
    17°
    17°
    17°
    16°
    15°
    14°
    13°
    12°
    11°
    10°
    10°
    Feels like temperature (°C)
    11°
    13°
    14°
    15°
    15°
    15°
    15°
    15°
    13°
    12°
    12°
    10°
    Wind direction and speed (mph)
    ESE
    8
    ESE
    8
    ESE
    8
    ESE
    8
    ESE
    9
    ESE
    9
    ESE
    9
    ESE
    9
    ESE
    10
    ESE
    10
    ESE
    10
    ESE
    11
    SE
    11
    SE
    11
    SE
    11
    S
    10
    SSW
    10
    SW
    9
    WSW
    9
    WSW
    8
    SSW
    7
    SW
    8
    SW
    8
    SW
    8
    Wind gust (mph)
    23
    24
    26
    26
    28
    27
    25
    27
    27
    27
    28
    27
    26
    24
    22
    19
    21
    20
    18
    19
    19
    19
    19
    17
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    M
    M
    Humidity
    77%
    78%
    76%
    76%
    76%
    76%
    76%
    76%
    74%
    68%
    64%
    61%
    63%
    65%
    65%
    66%
    67%
    70%
    78%
    85%
    88%
    90%
    91%
    89%
    UV - - - - - - 1 1 1 1 2 3 3 3 2 2 1 1 1 1 1 - - -
    Wind direction and speed (mph)
    8
    8
    8
    9
    9
    9
    9
    9
    8
    9
    9
    10
    11
    12
    12
    11
    10
    9
    8
    7
    7
    7
    8
    8
    Height of waves offshore (m)
    0.4
    0.4
    0.5
    0.5
    0.5
    0.5
    0.6
    0.6
    0.6
    0.6
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    8
    8
    8
    8
    8
    6
    6
    7
    5
    5
    6
    12
    12
    12
    11
    11
    17
    17
    17
    17
    16
    16
    16
    16
    Direction of waves offshore
    Wednesday (8 April 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Partly cloudy night Sunny intervals Sunny day Sunny day Sunny intervals Cloudy Cloudy
    Chance of precipitation
    30%
    20%
    20%
    10%
    10%
    10%
    20%
    30%
    50%
    Temperature (°C)
    10°
    10°
    12°
    13°
    11°
    Feels like temperature (°C)
    10°
    10°
    Wind direction and speed (mph)
    SW
    8
    WSW
    8
    WSW
    8
    WSW
    7
    WSW
    9
    WSW
    10
    SW
    15
    SSW
    17
    SSW
    17
    Wind gust (mph)
    17
    16
    14
    16
    19
    26
    29
    29
    28
    Visibility (description)
    M
    M
    M
    P
    M
    G
    G
    G
    M
    Humidity
    92%
    92%
    91%
    93%
    79%
    65%
    60%
    73%
    85%
    UV - - - 1 2 4 2 1 -
    Wind direction and speed (mph)
    8
    8
    7
    7
    9
    11
    14
    16
    16
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.3
    0.4
    0.5
    0.4
    0.7
    0.8
    Period of waves offshore (s)
    15
    15
    7
    9
    3
    4
    4
    4
    6
    Direction of waves offshore
    Thursday (9 April 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    50%
    40%
    40%
    20%
    30%
    20%
    20%
    10%
    Temperature (°C)
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    17
    WSW
    14
    W
    14
    W
    16
    W
    17
    WNW
    16
    WNW
    13
    WNW
    10
    Wind gust (mph)
    27
    24
    27
    30
    29
    28
    22
    17
    Visibility (description)
    M
    M
    M
    G
    G
    G
    G
    M
    Humidity
    89%
    87%
    87%
    78%
    64%
    60%
    69%
    82%
    UV - - 1 2 3 2 1 -
    Wind direction and speed (mph)
    15
    Height of waves offshore (m)
    0.8
    Period of waves offshore (s)
    7
    Direction of waves offshore

    Tide times

    Friday 3 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 Cemaes Bay tidal station which is 2.5 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 Cemaes Bay tidal station which is 2.5 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 Cemaes Bay tidal station which is 2.5 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 4 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 4 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 4 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 4 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 5 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 5 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 5 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 5 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 6 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 6 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 6 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 6 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 7 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 7 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 7 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 7 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 8 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 8 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 8 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 8 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 9 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 9 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 9 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 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 9 April

    Tide times and heights are from Cemaes Bay tidal station which is 2.5 miles away. So times may be different at this beach. What does this mean?

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

    Cemlyn (Beach) weather map

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    Wales weather forecast

    Headline:

    Storm Dave brings disruptive winds later Saturday, quietening down thereafter.

    This Evening and Tonight:

    Some breaks in the cloud possible giving a brighter end to the day, perhaps an isolated light shower. Skies turning cloudy again towards dawn. Blustery winds gradually easing through the evening, remaining lighter overnight. Minimum temperature 4 °C.

    Saturday:

    Cloud and light patchy rain quickly spreading northwards, some brighter spells possible from afternoon onwards. Turning increasingly windy as Storm Dave arrives with gales developing from mid-afternoon. Maximum temperature 13 °C.

    Outlook for Sunday to Tuesday:

    Bright but blustery on Easter Sunday, with scattered showers. Winds easing leaving a drier, brighter, and warmer Easter Monday. Generally settled on Tuesday, potential for cloud and isolated showers later.

    Updated:

    UK long range weather forecast

    More from the Met Office