Aberffraw Bay (Traeth Mawr) (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

Clear changing to heavy showers by lunchtime.
Beach safety today
Very large, powerful waves
  • • high likelihood of injury in or near the sea

Tide: Next high tide (4.6m) at

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

    6 day forecast for Aberffraw Bay (Traeth Mawr) (Beach)

    Tomorrow (2 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Clear night Clear night Clear night Sunny day Sunny intervals Sunny intervals Light shower day Light shower day Heavy shower day Heavy shower day Heavy shower day Heavy shower night Heavy shower night Light shower night Light shower night Heavy shower night Heavy shower night Heavy shower night Light shower night
    Chance of precipitation
    <5%
    10%
    <5%
    20%
    10%
    <5%
    <5%
    10%
    20%
    40%
    40%
    60%
    70%
    90%
    90%
    80%
    90%
    80%
    80%
    80%
    80%
    80%
    80%
    70%
    Temperature
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    9°
    9°
    9°
    9°
    8°
    8°
    8°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    Feels like temperature (°C)
    4°
    5°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    5°
    5°
    6°
    6°
    6°
    5°
    5°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    Wind direction and speed
    WSW
    16
    WSW
    15
    WSW
    15
    WSW
    15
    SW
    16
    WSW
    16
    SW
    16
    WSW
    16
    SW
    15
    SW
    16
    SW
    16
    SW
    16
    SSW
    16
    SSW
    15
    S
    14
    SSW
    14
    S
    14
    S
    14
    S
    13
    S
    12
    S
    13
    S
    13
    S
    13
    S
    13
    Wind gust (mph)
    29
    30
    30
    31
    31
    30
    29
    29
    28
    30
    31
    32
    30
    30
    30
    29
    27
    27
    26
    26
    25
    27
    28
    27
    Visibility
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    77%
    76%
    76%
    76%
    75%
    76%
    74%
    74%
    73%
    73%
    74%
    70%
    72%
    77%
    83%
    84%
    86%
    87%
    87%
    89%
    89%
    89%
    89%
    88%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed
    16
    15
    16
    16
    17
    16
    16
    16
    16
    16
    16
    16
    16
    15
    14
    14
    15
    15
    14
    13
    14
    14
    14
    14
    Height of waves offshore (m)
    1.9
    1.8
    1.8
    1.7
    1.7
    1.6
    1.6
    1.6
    1.5
    1.5
    1.4
    1.4
    1.4
    1.4
    1.3
    1.3
    1.3
    1.2
    1.1
    1.1
    1.1
    1.1
    1.1
    1.2
    Period of waves offshore (s)
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Wednesday (3 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 Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Light shower night Light shower night Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    70%
    70%
    60%
    60%
    70%
    70%
    50%
    50%
    40%
    30%
    20%
    30%
    20%
    20%
    30%
    50%
    50%
    60%
    70%
    70%
    80%
    70%
    70%
    80%
    Temperature (°C)
    7°
    7°
    7°
    7°
    8°
    8°
    8°
    8°
    8°
    8°
    9°
    10°
    10°
    10°
    10°
    10°
    9°
    9°
    9°
    9°
    9°
    8°
    8°
    9°
    Feels like temperature (°C)
    3°
    3°
    3°
    4°
    4°
    4°
    4°
    5°
    5°
    5°
    6°
    6°
    7°
    7°
    7°
    7°
    6°
    6°
    5°
    5°
    5°
    4°
    4°
    4°
    Wind direction and speed (mph)
    S
    14
    S
    15
    S
    14
    S
    15
    S
    15
    SSW
    16
    S
    16
    SSW
    16
    SW
    15
    SW
    14
    SW
    14
    SW
    15
    SW
    15
    SW
    14
    SSW
    14
    SSW
    14
    SSW
    14
    S
    14
    S
    15
    SSE
    16
    SSE
    18
    SSE
    19
    SSE
    20
    SSE
    22
    Wind gust (mph)
    28
    28
    29
    31
    31
    29
    28
    26
    25
    25
    25
    25
    25
    24
    24
    25
    28
    29
    30
    32
    34
    36
    38
    38
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    88%
    87%
    86%
    90%
    88%
    88%
    87%
    88%
    88%
    86%
    85%
    84%
    79%
    81%
    80%
    81%
    84%
    85%
    86%
    86%
    86%
    86%
    87%
    86%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    15
    15
    15
    16
    16
    16
    16
    15
    14
    14
    15
    14
    14
    14
    14
    14
    14
    14
    15
    17
    18
    20
    21
    22
    Height of waves offshore (m)
    1.2
    1.3
    1.3
    1.3
    1.4
    1.4
    1.4
    1.3
    1.3
    1.2
    1.2
    1.1
    1.1
    1.1
    1.1
    1.1
    1.1
    1.1
    1.2
    1.2
    1.3
    1.4
    1.5
    1.7
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    6
    7
    7
    7
    7
    8
    5
    5
    5
    5
    5
    5
    5
    5
    6
    6
    6
    7
    Direction of waves offshore
    Thursday (4 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 Light rain Light shower night Cloudy Light shower night Cloudy Cloudy Light shower night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    60%
    50%
    50%
    50%
    40%
    40%
    50%
    50%
    40%
    50%
    50%
    50%
    50%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    30%
    Temperature (°C)
    8°
    8°
    8°
    8°
    8°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    8°
    8°
    8°
    7°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    Feels like temperature (°C)
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    3°
    3°
    4°
    4°
    4°
    5°
    5°
    4°
    3°
    3°
    3°
    3°
    2°
    3°
    3°
    3°
    Wind direction and speed (mph)
    SSE
    22
    SSW
    20
    SSW
    18
    SW
    16
    WSW
    15
    WSW
    14
    W
    13
    W
    13
    WSW
    11
    WSW
    11
    WSW
    11
    WSW
    12
    WSW
    12
    WSW
    12
    WSW
    11
    WSW
    10
    WSW
    10
    WSW
    9
    S
    9
    SSW
    9
    S
    9
    SSW
    9
    SSW
    9
    SSW
    9
    Wind gust (mph)
    36
    35
    30
    27
    25
    24
    24
    23
    21
    20
    20
    20
    20
    19
    18
    16
    17
    17
    17
    19
    19
    19
    18
    18
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    86%
    83%
    83%
    82%
    84%
    82%
    79%
    79%
    82%
    83%
    79%
    81%
    78%
    77%
    78%
    80%
    85%
    85%
    87%
    89%
    89%
    90%
    89%
    89%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    21
    19
    17
    15
    14
    13
    12
    12
    11
    10
    11
    11
    12
    11
    11
    10
    9
    9
    9
    9
    8
    8
    8
    8
    Height of waves offshore (m)
    1.9
    2.0
    2.2
    2.3
    2.1
    1.9
    1.7
    1.6
    1.5
    1.4
    1.3
    1.3
    1.2
    1.1
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.8
    0.7
    Period of waves offshore (s)
    7
    8
    8
    8
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Friday (5 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 Partly cloudy night 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 Cloudy Cloudy Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    30%
    40%
    40%
    50%
    50%
    40%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    60%
    70%
    70%
    70%
    80%
    80%
    80%
    70%
    60%
    70%
    70%
    Temperature (°C)
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    7°
    7°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    Feels like temperature (°C)
    2°
    2°
    2°
    2°
    2°
    2°
    2°
    2°
    2°
    2°
    3°
    4°
    4°
    4°
    4°
    4°
    4°
    3°
    4°
    4°
    4°
    5°
    5°
    5°
    Wind direction and speed (mph)
    SSW
    10
    SSW
    10
    S
    10
    S
    11
    S
    12
    S
    13
    SSE
    12
    SSE
    12
    SSE
    12
    SSE
    13
    SSE
    14
    SSE
    15
    SSE
    15
    SE
    16
    SE
    17
    SE
    17
    SE
    17
    ESE
    18
    ESE
    18
    SE
    17
    SE
    16
    SE
    15
    SE
    14
    SE
    13
    Wind gust (mph)
    18
    19
    19
    19
    20
    21
    21
    21
    24
    23
    24
    26
    28
    28
    28
    30
    33
    33
    30
    30
    30
    30
    28
    26
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    M
    M
    G
    G
    G
    G
    Humidity
    88%
    87%
    87%
    88%
    87%
    87%
    88%
    89%
    90%
    89%
    84%
    83%
    83%
    81%
    83%
    85%
    85%
    85%
    86%
    90%
    90%
    91%
    91%
    92%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    9
    10
    10
    11
    12
    12
    12
    12
    12
    13
    14
    14
    15
    15
    16
    17
    17
    18
    19
    18
    17
    16
    15
    14
    Height of waves offshore (m)
    0.7
    0.8
    0.8
    0.8
    0.9
    0.9
    1.0
    1.1
    1.2
    1.2
    1.2
    1.2
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    6
    5
    5
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    8
    8
    8
    9
    Direction of waves offshore
    Saturday (6 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Light rain Light rain Light rain Overcast Overcast Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    60%
    60%
    50%
    40%
    30%
    20%
    10%
    Temperature (°C)
    8°
    8°
    8°
    8°
    9°
    9°
    8°
    8°
    Feels like temperature (°C)
    5°
    6°
    5°
    5°
    6°
    6°
    5°
    5°
    Wind direction and speed (mph)
    SE
    12
    SE
    11
    NNW
    11
    WNW
    12
    WNW
    14
    WNW
    14
    WNW
    13
    W
    11
    Wind gust (mph)
    23
    19
    17
    15
    18
    15
    14
    11
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    VG
    Humidity
    92%
    93%
    94%
    93%
    90%
    88%
    89%
    90%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    13
    11
    12
    12
    13
    14
    13
    11
    Height of waves offshore (m)
    0.6
    0.5
    0.5
    0.5
    1.0
    		 – – –
    Period of waves offshore (s)
    9
    9
    9
    10
    9
    		 – – –
    Direction of waves offshore
    Sunday (7 December 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    20%
    20%
    30%
    30%
    40%
    40%
    30%
    30%
    Temperature (°C)
    7°
    7°
    6°
    7°
    9°
    9°
    8°
    8°
    Feels like temperature (°C)
    4°
    4°
    4°
    5°
    7°
    7°
    5°
    5°
    Wind direction and speed (mph)
    NW
    10
    WSW
    9
    SSW
    8
    S
    9
    SSW
    12
    SSW
    13
    SSW
    13
    SW
    13
    Wind gust (mph)
    11
    10
    8
    9
    14
    14
    14
    14
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    92%
    94%
    95%
    94%
    87%
    88%
    92%
    88%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    10
    		 – – – – – – –
    Height of waves offshore (m) – – – – – – – –
    Period of waves offshore (s) – – – – – – – –
    Direction of waves offshore
    –
    –
    –
    –
    –
    –
    –

    Tide times

    Tuesday 2 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 2 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 2 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 2 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 3 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 3 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 3 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 3 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 4 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 4 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 4 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 4 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 5 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 5 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 5 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 5 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 6 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 6 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 6 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 6 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 7 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 7 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 7 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 7 December

    Tide times and heights are from Porth Trecastell tidal station which is 2.0 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 explained
    News

    Wind and rain marking a change in the UK weather

    Warnings have been issued as the weather across the UK becomes increasingly mild but wet and windy.

    Read more

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    Forecast for 12am Tuesday
    Updated 22:00 (UTC) on Mon 1 Dec 2025
    WARNING
    Flood warnings icon
    Flood warnings in force for Wales
    Flood warnings in force for Wales

    Natural Resources Wales

    Updated:

    Wales weather forecast

    Headline:

    An unsettled week to come.

    This Evening and Tonight:

    Wet and windy weather persisting through the evening with further heavy downpours likely. Overnight, winds will gradually ease, with cloud and rain clearing to the northeast, though scattered showers feed into western parts thereafter, these blustery at times. Minimum temperature 7 °C.

    Tuesday:

    A brighter start for many, though scattered showers continue in the west. These becoming more frequent and widespread through the afternoon, with blustery and perhaps thundery downpours likely. Maximum temperature 10 °C.

    Outlook for Wednesday to Friday:

    Wednesday brings another day of sunny spells with occasional showers. Turning cloudy from the west overnight as the next weather system brings further rain into Thursday and Friday. Often breezy.

    Updated:

    UK long range weather forecast

    More from the Met Office