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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

Sunny intervals changing to partly cloudy in the afternoon.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next high tide (4.8m) at

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

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

    Tomorrow (21 November 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 Clear night Clear night Clear night Clear night Clear night Clear 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 Partly cloudy night Cloudy Overcast Overcast Light rain
    Chance of precipitation
    <5%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    30%
    80%
    Temperature
    1°
    1°
    1°
    1°
    1°
    0°
    0°
    0°
    0°
    2°
    4°
    6°
    7°
    7°
    7°
    7°
    6°
    6°
    7°
    7°
    8°
    8°
    8°
    8°
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    -1°
    -1°
    -2°
    -2°
    -2°
    -2°
    0°
    2°
    4°
    4°
    4°
    4°
    4°
    3°
    3°
    3°
    3°
    4°
    4°
    5°
    4°
    Wind direction and speed
    N
    5
    NNE
    5
    NNE
    4
    NNE
    4
    NE
    4
    NE
    4
    ENE
    4
    E
    4
    E
    4
    SE
    4
    SSE
    4
    S
    6
    S
    8
    SSW
    9
    SSW
    9
    SSW
    10
    SSW
    11
    SW
    12
    SW
    14
    SW
    15
    SW
    15
    SW
    16
    SSW
    18
    SSW
    20
    Wind gust (mph)
    10
    9
    9
    9
    8
    7
    7
    7
    7
    9
    13
    15
    17
    18
    19
    21
    23
    24
    27
    27
    27
    30
    33
    35
    Visibility
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    84%
    84%
    83%
    83%
    85%
    85%
    88%
    88%
    87%
    86%
    83%
    77%
    74%
    72%
    74%
    76%
    75%
    69%
    63%
    60%
    62%
    65%
    66%
    72%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed
    5
    5
    4
    4
    4
    4
    4
    4
    4
    4
    4
    6
    8
    9
    9
    10
    11
    12
    14
    15
    15
    16
    18
    20
    Height of waves offshore (m)
    0.5
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.4
    0.4
    0.5
    0.6
    0.7
    0.8
    0.9
    1.0
    1.0
    1.1
    Period of waves offshore (s)
    5
    5
    5
    4
    4
    4
    4
    4
    4
    4
    4
    4
    4
    3
    3
    3
    4
    4
    4
    4
    4
    5
    5
    5
    Direction of waves offshore
    Saturday (22 November 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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy shower night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain
    Chance of precipitation
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    80%
    50%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    30%
    50%
    60%
    70%
    80%
    80%
    80%
    80%
    Temperature (°C)
    8°
    8°
    8°
    8°
    9°
    9°
    9°
    8°
    7°
    8°
    9°
    10°
    10°
    10°
    10°
    10°
    9°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    Feels like temperature (°C)
    4°
    4°
    3°
    4°
    4°
    6°
    6°
    5°
    5°
    5°
    7°
    8°
    9°
    9°
    8°
    8°
    7°
    6°
    6°
    6°
    5°
    5°
    5°
    4°
    Wind direction and speed (mph)
    SSW
    22
    SSW
    23
    S
    24
    S
    25
    SSW
    24
    SW
    20
    W
    15
    WNW
    11
    NW
    9
    NW
    8
    NW
    8
    WNW
    8
    WNW
    8
    W
    8
    WSW
    7
    SW
    7
    SW
    7
    SSW
    8
    SSW
    9
    SSW
    10
    S
    10
    S
    12
    SSE
    13
    SSE
    15
    Wind gust (mph)
    38
    39
    42
    43
    39
    31
    27
    22
    17
    15
    15
    14
    15
    13
    12
    14
    14
    14
    15
    17
    17
    19
    21
    21
    Visibility (description)
    VG
    M
    P
    P
    M
    M
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    81%
    89%
    92%
    93%
    94%
    94%
    92%
    90%
    91%
    91%
    86%
    85%
    82%
    81%
    83%
    85%
    86%
    88%
    89%
    91%
    91%
    92%
    93%
    92%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    22
    23
    24
    25
    24
    20
    15
    11
    9
    8
    8
    8
    8
    8
    7
    7
    7
    8
    9
    10
    10
    12
    13
    15
    Height of waves offshore (m)
    1.3
    1.4
    1.5
    1.7
    1.9
    2.1
    1.9
    1.6
    1.4
    1.3
    1.2
    1.2
    1.1
    1.0
    0.9
    0.8
    0.8
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    Period of waves offshore (s)
    5
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Sunday (23 November 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 Heavy rain Light rain Light rain Heavy rain Heavy rain Heavy shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light rain Light shower day Light shower day Light shower day Light shower day Light shower night Light rain Light rain Light rain Light rain Heavy shower night Heavy shower night Light shower night
    Chance of precipitation
    70%
    70%
    70%
    70%
    70%
    70%
    70%
    60%
    70%
    70%
    60%
    60%
    60%
    60%
    60%
    70%
    70%
    70%
    70%
    70%
    70%
    80%
    80%
    70%
    Temperature (°C)
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    7°
    7°
    7°
    7°
    7°
    Feels like temperature (°C)
    4°
    4°
    5°
    5°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    4°
    3°
    4°
    4°
    3°
    3°
    Wind direction and speed (mph)
    S
    16
    S
    15
    S
    15
    SSW
    16
    WSW
    17
    W
    17
    W
    17
    W
    17
    WNW
    16
    WNW
    17
    WNW
    18
    W
    18
    WNW
    18
    W
    19
    WNW
    19
    WNW
    19
    WNW
    19
    WNW
    19
    WNW
    18
    WNW
    17
    WNW
    15
    NW
    15
    NW
    14
    NNW
    13
    Wind gust (mph)
    24
    27
    28
    33
    33
    33
    31
    35
    35
    33
    34
    31
    32
    30
    31
    31
    33
    31
    30
    30
    26
    24
    26
    28
    Visibility (description)
    G
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    93%
    93%
    92%
    90%
    89%
    91%
    89%
    85%
    83%
    85%
    83%
    82%
    82%
    79%
    80%
    81%
    80%
    81%
    83%
    86%
    88%
    86%
    87%
    87%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    16
    15
    15
    16
    17
    17
    17
    17
    16
    17
    18
    18
    18
    19
    19
    19
    19
    19
    18
    17
    15
    15
    14
    13
    Height of waves offshore (m)
    0.8
    0.9
    1.0
    1.1
    1.3
    1.6
    1.8
    1.8
    2.0
    2.2
    2.3
    2.4
    2.6
    1.4
    1.5
    1.6
    1.7
    1.7
    1.8
    1.8
    1.7
    1.6
    1.4
    1.3
    Period of waves offshore (s)
    7
    7
    7
    6
    6
    6
    7
    8
    7
    7
    7
    7
    8
    6
    7
    7
    8
    9
    9
    7
    7
    8
    9
    9
    Direction of waves offshore
    Monday (24 November 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 Light shower night Light shower day Light shower day Sunny intervals Sunny intervals Sunny intervals Cloudy Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    80%
    70%
    70%
    70%
    60%
    60%
    60%
    60%
    60%
    50%
    40%
    50%
    50%
    50%
    50%
    60%
    60%
    60%
    60%
    60%
    50%
    50%
    50%
    40%
    Temperature (°C)
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    7°
    8°
    8°
    9°
    9°
    9°
    9°
    8°
    8°
    7°
    7°
    7°
    7°
    7°
    7°
    Feels like temperature (°C)
    4°
    4°
    3°
    3°
    3°
    4°
    4°
    4°
    4°
    4°
    5°
    5°
    5°
    6°
    6°
    6°
    5°
    5°
    4°
    4°
    4°
    4°
    4°
    4°
    Wind direction and speed (mph)
    NW
    13
    NW
    13
    N
    14
    NNW
    14
    NNW
    13
    NNW
    14
    NNW
    14
    NNW
    14
    NNW
    13
    N
    13
    N
    14
    N
    15
    N
    15
    N
    15
    NNW
    14
    N
    13
    N
    12
    N
    11
    N
    11
    N
    11
    N
    10
    N
    10
    N
    10
    N
    10
    Wind gust (mph)
    26
    29
    30
    30
    32
    32
    33
    33
    30
    30
    32
    33
    32
    32
    33
    32
    32
    27
    27
    27
    25
    24
    23
    23
    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
    87%
    86%
    86%
    86%
    85%
    85%
    84%
    82%
    82%
    83%
    82%
    80%
    78%
    77%
    79%
    77%
    78%
    81%
    82%
    80%
    82%
    81%
    82%
    82%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    13
    13
    14
    14
    13
    14
    14
    14
    13
    13
    14
    15
    15
    15
    14
    13
    12
    11
    11
    11
    10
    10
    10
    10
    Height of waves offshore (m)
    1.2
    1.1
    1.0
    1.0
    0.9
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.7
    1.1
    1.0
    1.0
    0.9
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.5
    0.5
    Period of waves offshore (s)
    9
    9
    9
    9
    9
    9
    9
    9
    8
    8
    8
    7
    7
    6
    6
    6
    5
    6
    6
    6
    7
    7
    7
    6
    Direction of waves offshore
    Tuesday (25 November 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 Partly cloudy night Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Cloudy
    Chance of precipitation
    40%
    40%
    30%
    20%
    10%
    10%
    10%
    10%
    Temperature (°C)
    7°
    7°
    6°
    7°
    9°
    9°
    5°
    5°
    Feels like temperature (°C)
    4°
    4°
    3°
    4°
    7°
    6°
    3°
    3°
    Wind direction and speed (mph)
    N
    10
    N
    9
    N
    9
    N
    8
    N
    10
    N
    8
    NE
    6
    E
    5
    Wind gust (mph)
    22
    20
    18
    16
    16
    10
    8
    6
    Visibility (description)
    E
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    82%
    81%
    83%
    84%
    73%
    77%
    88%
    92%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    10
    9
    9
    8
    10
    8
    6
    5
    Height of waves offshore (m)
    0.5
    0.8
    0.7
    0.6
    0.6
    0.5
    0.5
    0.4
    Period of waves offshore (s)
    6
    5
    5
    5
    5
    4
    4
    4
    Direction of waves offshore
    Wednesday (26 November 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
    10%
    20%
    20%
    20%
    20%
    20%
    20%
    30%
    Temperature (°C)
    5°
    4°
    5°
    6°
    9°
    9°
    7°
    7°
    Feels like temperature (°C)
    2°
    2°
    2°
    3°
    6°
    6°
    4°
    4°
    Wind direction and speed (mph)
    E
    6
    S
    7
    S
    7
    S
    9
    S
    11
    S
    12
    S
    12
    S
    13
    Wind gust (mph)
    6
    7
    8
    11
    14
    13
    13
    14
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    G
    G
    Humidity
    93%
    94%
    94%
    94%
    81%
    85%
    91%
    92%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    6
    		 – – – – – – –
    Height of waves offshore (m)
    0.3
    		 – – – – – – –
    Period of waves offshore (s)
    4
    		 – – – – – – –
    Direction of waves offshore
    –
    –
    –
    –
    –
    –
    –

    Tide times

    Friday 21 November

    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 21 November

    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 21 November

    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 21 November

    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 22 November

    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 22 November

    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 22 November

    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 22 November

    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 23 November

    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 23 November

    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 23 November

    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 23 November

    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

    Monday 24 November

    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

    Monday 24 November

    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

    Monday 24 November

    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

    Monday 24 November

    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 25 November

    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 25 November

    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 25 November

    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 25 November

    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 26 November

    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 26 November

    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 26 November

    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 26 November

    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.

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    Forecast for 00:00, Fri
    Updated 21:00 (UTC) on Thu 20 Nov 2025
    WARNING
    Flood alerts icon
    Flood alerts in force for Wales
    Flood alerts in force for Wales

    Natural Resources Wales

    Updated:

    Wales weather forecast

    Headline:

    Cold with clear skies and icy stretches. Sunny on Friday.

    This Evening and Tonight:

    Remaining clear and dry in the east, with any wintry showers gradually fading in the west. Breezy to start but winds easing through the night. Turning cold underneath the clear skies with icy stretches and a widespread frost. Minimum temperature -4 °C.

    Friday:

    A cold and frosty start with icy stretches in places. Otherwise a dry and sunny day with lighter winds than of late. Cloud gradually building during the evening. Maximum temperature 7 °C.

    Outlook for Saturday to Monday:

    Remaining cloudy and changeable from Saturday, as bands of rain and showers push eastwards across the country. Breezy at times. Feeling less cold as temperatures return to near average.

    Updated:

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