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

Cloudy.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next low tide (2.5m) at

Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution

    7 day forecast for Cemlyn (Beach)

    Today (22 March 2025)
    Time
    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
    Cloudy
    Sunny intervals
    Cloudy
    Cloudy
    Cloudy
    Light shower day
    Cloudy
    Sunny intervals
    Cloudy
    Cloudy
    Cloudy
    Overcast
    Overcast
    Overcast
    Overcast
    Chance of precipitation
    10%
    10%
    20%
    10%
    30%
    50%
    60%
    50%
    30%
    20%
    20%
    30%
    30%
    30%
    40%
    40%
    Temperature
    11°
    13°
    14°
    15°
    15°
    15°
    15°
    14°
    13°
    12°
    11°
    10°
    Feels like temperature (°C)
    10°
    12°
    13°
    14°
    14°
    14°
    14°
    13°
    12°
    11°
    Wind direction and speed
    ESE
    6
    ESE
    6
    E
    6
    E
    6
    ENE
    7
    NE
    7
    NNE
    7
    NNE
    7
    N
    7
    N
    8
    N
    10
    N
    13
    N
    15
    N
    17
    N
    18
    N
    20
    Wind gust (mph)
    14
    14
    14
    14
    14
    13
    12
    12
    12
    14
    21
    25
    28
    31
    32
    34
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    VG
    E
    Humidity
    85%
    80%
    76%
    74%
    73%
    74%
    74%
    78%
    81%
    84%
    90%
    93%
    93%
    92%
    92%
    92%
    UV
    1
    1
    2
    2
    2
    2
    1
    1
    1
    1
    1
    -
    -
    -
    -
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.6
    0.9
    1.2
    1.5
    Period of waves offshore (s)
    11
    11
    11
    11
    11
    11
    10
    10
    10
    10
    10
    10
    3
    4
    5
    6
    Direction of waves offshore
    Sunday (23 March 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
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Overcast
    Cloudy
    Partly cloudy night
    Chance of precipitation
    40%
    40%
    40%
    30%
    30%
    40%
    30%
    20%
    10%
    10%
    10%
    10%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    <5%
    <5%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NNW
    20
    NNW
    21
    NNW
    21
    NNW
    21
    NNW
    21
    NNW
    21
    NNW
    20
    NNW
    20
    NNW
    19
    N
    18
    N
    18
    N
    18
    N
    19
    N
    19
    N
    18
    N
    18
    N
    18
    N
    17
    N
    16
    N
    15
    N
    14
    N
    14
    NNE
    13
    NNE
    11
    Wind gust (mph)
    34
    35
    35
    34
    34
    34
    33
    33
    30
    30
    30
    30
    30
    30
    28
    29
    29
    28
    27
    26
    25
    24
    23
    20
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    91%
    91%
    91%
    91%
    91%
    92%
    92%
    92%
    92%
    90%
    87%
    85%
    85%
    85%
    85%
    84%
    84%
    85%
    85%
    85%
    85%
    86%
    87%
    88%
    UV
    -
    -
    -
    -
    -
    -
    1
    1
    1
    1
    1
    2
    2
    2
    2
    1
    1
    1
    1
    -
    -
    -
    -
    -
    Wind direction and speed
    Height of waves offshore (m)
    1.7
    1.8
    1.9
    1.9
    1.9
    1.9
    1.9
    1.9
    1.8
    1.7
    1.7
    1.6
    1.6
    1.6
    1.5
    1.5
    1.5
    1.4
    1.4
    1.3
    1.3
    1.2
    1.1
    1.0
    Period of waves offshore (s)
    6
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    6
    6
    6
    Direction of waves offshore
    Monday (24 March 2025)
    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
    Sunny intervals
    Sunny intervals
    Sunny day
    Sunny day
    Partly cloudy night
    Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    Temperature (°C)
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NNE
    10
    NNE
    7
    NNE
    6
    N
    6
    NNW
    7
    WNW
    7
    SW
    6
    SW
    8
    Wind gust (mph)
    18
    15
    11
    11
    12
    11
    15
    18
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    Humidity
    90%
    92%
    91%
    80%
    74%
    73%
    81%
    87%
    UV
    -
    -
    1
    1
    2
    1
    1
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.9
    0.7
    0.6
    0.5
    0.4
    0.3
    0.2
    0.1
    Period of waves offshore (s)
    6
    5
    5
    4
    4
    4
    4
    3
    Direction of waves offshore
    Tuesday (25 March 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols
    Overcast
    Light rain
    Overcast
    Overcast
    Sunny intervals
    Sunny day
    Clear night
    Partly cloudy night
    Chance of precipitation
    40%
    50%
    40%
    10%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    10°
    12°
    12°
    10°
    Feels like temperature (°C)
    10°
    10°
    Wind direction and speed (mph)
    SW
    8
    SW
    8
    W
    8
    WNW
    8
    NW
    9
    NW
    7
    WSW
    5
    SSW
    5
    Wind gust (mph)
    18
    17
    16
    16
    12
    10
    9
    10
    Visibility (description)
    VG
    G
    M
    G
    E
    E
    VG
    VG
    Humidity
    91%
    95%
    98%
    96%
    82%
    76%
    85%
    93%
    UV
    -
    -
    1
    1
    2
    1
    1
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.2
    0.2
    0.3
    0.3
    0.4
    0.3
    0.3
    0.2
    Period of waves offshore (s)
    2
    3
    3
    4
    4
    3
    3
    3
    Direction of waves offshore
    Wednesday (26 March 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols
    Cloudy
    Overcast
    Overcast
    Cloudy
    Sunny intervals
    Cloudy
    Partly cloudy night
    Cloudy
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    20%
    30%
    30%
    20%
    Temperature (°C)
    10°
    12°
    12°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    6
    SSW
    7
    SSW
    8
    SSW
    13
    SSW
    17
    SSW
    18
    SW
    16
    SW
    14
    Wind gust (mph)
    14
    16
    19
    21
    24
    24
    24
    23
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    96%
    98%
    96%
    87%
    84%
    86%
    90%
    92%
    UV
    -
    -
    1
    1
    2
    1
    1
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.2
    0.1
    0.1
    0.1
    0.3
    0.4
    0.5
    0.6
    Period of waves offshore (s)
    4
    4
    12
    2
    3
    4
    5
    5
    Direction of waves offshore
    Thursday (27 March 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols
    Cloudy
    Cloudy
    Sunny intervals
    Sunny intervals
    Sunny intervals
    Sunny intervals
    Partly cloudy night
    Cloudy
    Chance of precipitation
    20%
    20%
    10%
    10%
    10%
    10%
    20%
    20%
    Temperature (°C)
    10°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    13
    W
    12
    W
    12
    W
    14
    WSW
    15
    WSW
    15
    SW
    13
    SW
    12
    Wind gust (mph)
    21
    20
    20
    21
    22
    21
    17
    19
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    91%
    88%
    84%
    77%
    67%
    67%
    77%
    83%
    UV
    -
    -
    1
    1
    2
    1
    1
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.7
    0.6
    0.5
    0.5
    0.5
    0.4
    0.4
    0.3
    Period of waves offshore (s)
    5
    5
    4
    4
    4
    4
    3
    3
    Direction of waves offshore
    Friday (28 March 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols
    Cloudy
    Partly cloudy night
    Sunny intervals
    Sunny intervals
    Sunny intervals
    Sunny intervals
    Partly cloudy night
    Partly cloudy night
    Chance of precipitation
    40%
    30%
    40%
    50%
    50%
    30%
    20%
    20%
    Temperature (°C)
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    13
    SW
    13
    SW
    14
    WSW
    17
    WSW
    19
    W
    18
    W
    14
    W
    14
    Wind gust (mph)
    21
    24
    28
    31
    33
    28
    26
    26
    Visibility (description)
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    87%
    89%
    88%
    81%
    78%
    73%
    76%
    79%
    UV
    -
    -
    1
    1
    3
    1
    1
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.4
    Period of waves offshore (s)
    4
    Direction of waves offshore

    Tide times

    Saturday 22 March

    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 22 March

    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 22 March

    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 22 March

    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 23 March

    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 23 March

    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 23 March

    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 23 March

    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 24 March

    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 24 March

    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 24 March

    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 24 March

    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 25 March

    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 25 March

    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 25 March

    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 25 March

    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 26 March

    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 26 March

    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 26 March

    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 26 March

    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 27 March

    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 27 March

    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 27 March

    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 27 March

    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 28 March

    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 28 March

    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 28 March

    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 28 March

    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.

    UK video forecast

    Cemlyn (Beach) weather map

    View the weather with our interactive map

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    Wales weather forecast

    Headline:

    Heavy showers possible over the weekend.

    Today:

    Dry at first with some warm sunny spells. Cloud will bubble up during the afternoon with some heavy showers. Rumbles of thunder are possible in the heavier downpours. Maximum temperature 17 °C.

    Tonight:

    Heavy showers continue during the evening, merging to give longer spells of rain overnight. Rain easing towards the end of the night. Minimum temperature 8 °C.

    Sunday:

    A grey and cloudy start to the day, with a few spots of rain lingering. Remaining largely cloudy through the afternoon, although some brighter spells possible at times. Maximum temperature 16 °C.

    Outlook for Monday to Wednesday:

    Largely dry in the new week. Cloudy at times, with some brighter spells in between. Temperatures closer to the seasonal average.

    Updated:

    UK long range weather forecast

    More from the Met Office