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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

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

Tide: Next high tide (4.6m) at

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

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

    Today (21 November 2025)
    Time
    22:00
    23:00
    Weather symbols Drizzle Heavy rain
    Chance of precipitation
    40%
    ≥95%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    SW
    20
    SSW
    21
    Wind gust (mph)
    37
    39
    Visibility
    E
    M
    Humidity
    72%
    82%
    UV - -
    Wind direction and speed
    20
    21
    Height of waves offshore (m)
    1.3
    1.5
    Period of waves offshore (s)
    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 rain Heavy rain Heavy rain 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 Partly cloudy night Light shower night Light shower night Light rain
    Chance of precipitation
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    90%
    70%
    60%
    50%
    30%
    20%
    10%
    20%
    20%
    <5%
    10%
    20%
    30%
    50%
    50%
    50%
    50%
    50%
    50%
    Temperature (°C)
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    22
    SSW
    24
    SSW
    25
    SSW
    25
    SSW
    24
    SW
    21
    SW
    17
    W
    13
    NNW
    9
    N
    7
    N
    6
    NNW
    5
    NNW
    6
    NW
    5
    NW
    5
    NW
    5
    WNW
    4
    WSW
    4
    SW
    5
    SSW
    6
    SSW
    6
    S
    7
    SSW
    8
    SSW
    9
    Wind gust (mph)
    43
    44
    44
    43
    39
    28
    24
    20
    16
    12
    11
    11
    11
    11
    10
    9
    8
    9
    11
    13
    15
    18
    19
    19
    Visibility (description)
    M
    M
    P
    P
    M
    M
    M
    G
    VG
    VG
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    Humidity
    90%
    93%
    93%
    94%
    94%
    94%
    93%
    93%
    94%
    93%
    89%
    86%
    82%
    79%
    82%
    87%
    91%
    92%
    91%
    92%
    93%
    93%
    92%
    92%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    22
    24
    25
    25
    24
    21
    17
    13
    9
    7
    6
    5
    6
    5
    5
    5
    4
    4
    5
    6
    6
    7
    8
    9
    Height of waves offshore (m)
    1.6
    1.8
    2.0
    2.2
    2.3
    2.1
    1.8
    1.6
    1.4
    1.3
    1.2
    1.1
    1.3
    1.1
    1.0
    0.9
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.7
    0.7
    Period of waves offshore (s)
    6
    6
    6
    6
    7
    7
    7
    7
    7
    8
    8
    8
    8
    8
    8
    8
    8
    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 Light rain Light rain Light rain Heavy rain Heavy rain Heavy shower night Heavy shower night Light shower night Light shower day Light shower day Light rain Light shower day Light rain Light rain Light rain Light shower day Light shower night Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy shower night Heavy shower night
    Chance of precipitation
    60%
    70%
    80%
    80%
    80%
    90%
    80%
    70%
    60%
    70%
    60%
    60%
    50%
    70%
    70%
    80%
    80%
    80%
    80%
    80%
    80%
    80%
    80%
    80%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    S
    11
    S
    12
    S
    14
    S
    15
    S
    16
    SSW
    17
    WSW
    17
    WSW
    17
    W
    17
    W
    18
    W
    19
    W
    20
    W
    20
    W
    21
    W
    21
    W
    21
    W
    22
    W
    21
    W
    20
    W
    19
    WNW
    18
    WNW
    17
    NW
    15
    NW
    13
    Wind gust (mph)
    18
    21
    23
    26
    30
    33
    32
    34
    35
    36
    37
    36
    39
    39
    40
    41
    38
    36
    31
    27
    28
    26
    26
    26
    Visibility (description)
    E
    E
    E
    E
    VG
    G
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    92%
    92%
    93%
    93%
    92%
    92%
    87%
    84%
    82%
    80%
    79%
    80%
    79%
    77%
    78%
    79%
    80%
    82%
    82%
    83%
    84%
    88%
    88%
    89%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    11
    12
    14
    15
    16
    17
    17
    17
    17
    18
    19
    20
    20
    21
    21
    21
    22
    21
    20
    19
    18
    17
    15
    13
    Height of waves offshore (m)
    0.7
    0.7
    0.6
    0.7
    0.9
    1.3
    1.4
    1.5
    1.6
    1.7
    1.8
    1.8
    1.8
    1.9
    1.9
    2.0
    2.1
    2.2
    2.3
    2.3
    2.3
    2.2
    2.0
    1.8
    Period of waves offshore (s)
    7
    7
    5
    4
    4
    5
    5
    6
    6
    6
    6
    6
    6
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    8
    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 Heavy shower night Heavy 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    70%
    80%
    80%
    60%
    60%
    50%
    50%
    40%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    30%
    40%
    40%
    40%
    50%
    40%
    30%
    40%
    40%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NNW
    12
    NNW
    11
    NNW
    10
    N
    10
    N
    10
    N
    10
    N
    11
    N
    11
    N
    11
    N
    12
    N
    12
    N
    13
    N
    14
    N
    14
    N
    14
    N
    13
    N
    11
    N
    10
    N
    10
    N
    10
    N
    10
    N
    10
    N
    9
    N
    9
    Wind gust (mph)
    26
    26
    25
    25
    26
    26
    26
    27
    30
    33
    32
    33
    33
    33
    33
    33
    30
    26
    26
    25
    25
    25
    22
    20
    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%
    88%
    87%
    87%
    86%
    86%
    86%
    86%
    85%
    84%
    84%
    80%
    76%
    75%
    74%
    74%
    75%
    76%
    78%
    77%
    78%
    79%
    79%
    80%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    12
    11
    10
    10
    10
    10
    11
    11
    11
    12
    12
    13
    14
    14
    14
    13
    11
    10
    10
    10
    10
    10
    9
    9
    Height of waves offshore (m)
    1.7
    1.6
    1.5
    1.5
    1.4
    1.4
    1.3
    1.2
    1.2
    1.1
    1.1
    1.1
    1.2
    1.2
    1.2
    1.1
    1.1
    1.1
    1.2
    1.3
    1.3
    1.2
    1.1
    1.0
    Period of waves offshore (s)
    8
    8
    9
    9
    9
    9
    8
    8
    7
    8
    8
    8
    8
    8
    8
    8
    7
    7
    7
    7
    7
    7
    7
    7
    Direction of waves offshore
    Tuesday (25 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 Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny day Sunny day Sunny day Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    40%
    50%
    40%
    40%
    40%
    40%
    30%
    30%
    30%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    N
    8
    N
    8
    N
    8
    N
    8
    N
    8
    N
    7
    N
    6
    N
    6
    N
    6
    N
    5
    N
    5
    N
    6
    N
    6
    N
    6
    NNW
    6
    N
    5
    N
    4
    N
    3
    NNE
    3
    E
    4
    SE
    5
    SSE
    5
    SSE
    6
    SSE
    7
    Wind gust (mph)
    20
    19
    18
    18
    17
    15
    13
    13
    12
    11
    12
    14
    14
    14
    14
    11
    8
    6
    7
    8
    9
    11
    11
    11
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    82%
    79%
    81%
    81%
    81%
    82%
    83%
    83%
    84%
    84%
    79%
    76%
    72%
    70%
    75%
    82%
    86%
    87%
    87%
    88%
    88%
    89%
    88%
    89%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    8
    8
    8
    8
    8
    7
    6
    6
    6
    5
    5
    6
    6
    6
    6
    5
    4
    3
    3
    4
    5
    5
    6
    7
    Height of waves offshore (m)
    0.9
    0.9
    0.8
    0.8
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    7
    6
    6
    6
    6
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    5
    4
    5
    7
    9
    9
    9
    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 Partly cloudy night Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast
    Chance of precipitation
    30%
    30%
    30%
    30%
    30%
    30%
    40%
    30%
    Temperature (°C)
    10°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    S
    8
    S
    10
    S
    12
    S
    13
    SSW
    16
    SSW
    16
    SSW
    16
    SSW
    17
    Wind gust (mph)
    11
    15
    18
    25
    27
    23
    22
    26
    Visibility (description)
    VG
    G
    G
    G
    VG
    G
    M
    M
    Humidity
    89%
    91%
    92%
    91%
    87%
    91%
    93%
    94%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    8
    10
    12
    13
    16
    16
    16
    17
    Height of waves offshore (m)
    0.3
    0.4
    0.4
    0.5
    0.9
    1.3
    1.5
    1.7
    Period of waves offshore (s)
    8
    8
    3
    4
    4
    5
    6
    6
    Direction of waves offshore
    Thursday (27 November 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    30%
    40%
    40%
    40%
    50%
    40%
    40%
    40%
    Temperature (°C)
    11°
    12°
    12°
    11°
    12°
    12°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSW
    18
    SSW
    18
    SSW
    18
    SSW
    17
    SSW
    17
    SSW
    15
    SSW
    13
    SSW
    12
    Wind gust (mph)
    30
    31
    31
    30
    26
    18
    15
    15
    Visibility (description)
    M
    G
    M
    G
    G
    G
    G
    G
    Humidity
    94%
    93%
    93%
    93%
    93%
    92%
    93%
    94%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    18
    Height of waves offshore (m)
    1.9
    Period of waves offshore (s)
    7
    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

    Thursday 27 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

    Thursday 27 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

    Thursday 27 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

    Thursday 27 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.

    Aberffraw Bay (Traeth Mawr) (Beach) weather map

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    WARNING
    Flood alerts icon
    Flood alerts in force for Wales
    Flood alerts in force for Wales

    Wales weather forecast

    Headline:

    Turning wet and windy overnight.

    This Evening and Tonight:

    A cold evening to start but a change on its way, becoming cloudier and windier with outbreaks of rain pushing eastwards overnight. Temperatures rising through the night. Minimum temperature 0 °C.

    Saturday:

    An unsettled morning with rain and strong winds. Drier and brighter for a time during the afternoon before showery rain arrives later. Feeling less cold. Maximum temperature 10 °C.

    Outlook for Sunday to Tuesday:

    Unsettled on Sunday with coastal gales possible and heavy showers. Lots of brighter weather next week, some isolated coastal showers. Less cold, especially overnight and often windy.

    Updated:

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