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

Cloudy changing to sunny intervals by early evening.
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 high tide (3.7m) at

Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

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

    Today (3 July 2025)
    Time
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    15°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    Wind direction and speed
    SW
    16
    SW
    17
    SW
    16
    SW
    15
    SW
    15
    SW
    14
    SW
    14
    SW
    13
    SW
    12
    Wind gust (mph)
    26
    27
    27
    25
    24
    23
    23
    21
    20
    Visibility
    E
    E
    VG
    VG
    VG
    E
    VG
    VG
    VG
    Humidity
    72%
    73%
    75%
    76%
    77%
    80%
    85%
    86%
    86%
    UV 6 4 3 2 1 1 1 - -
    Wind direction and speed
    16
    16
    16
    15
    15
    14
    14
    13
    12
    Height of waves offshore (m)
    0.7
    0.8
    0.8
    0.9
    0.9
    0.9
    0.9
    0.8
    0.8
    Period of waves offshore (s)
    4
    4
    4
    4
    5
    5
    5
    5
    5
    Direction of waves offshore
    Friday (4 July 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 Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    40%
    50%
    70%
    90%
    90%
    80%
    70%
    50%
    30%
    Temperature (°C)
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    14°
    15°
    16°
    16°
    16°
    16°
    17°
    17°
    16°
    16°
    16°
    15°
    15°
    15°
    15°
    15°
    15°
    Feels like temperature (°C)
    13°
    13°
    12°
    12°
    12°
    11°
    12°
    12°
    12°
    13°
    13°
    13°
    13°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    Wind direction and speed (mph)
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    8
    WSW
    8
    SW
    9
    SW
    11
    SW
    13
    SW
    15
    SW
    16
    SW
    17
    SSW
    19
    SSW
    21
    SSW
    23
    SSW
    24
    SSW
    25
    SSW
    25
    SSW
    25
    SSW
    25
    SSW
    25
    SSW
    25
    SW
    25
    SW
    24
    SW
    23
    Wind gust (mph)
    19
    19
    18
    17
    16
    18
    23
    25
    27
    29
    30
    33
    36
    39
    41
    42
    43
    42
    42
    42
    41
    40
    38
    37
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    G
    M
    M
    M
    G
    VG
    Humidity
    86%
    85%
    85%
    85%
    87%
    88%
    86%
    83%
    76%
    75%
    75%
    75%
    76%
    76%
    77%
    78%
    84%
    86%
    87%
    91%
    92%
    92%
    92%
    92%
    UV - - - - 1 1 1 1 2 3 4 6 6 6 4 3 2 2 1 1 1 1 - -
    Wind direction and speed (mph)
    11
    10
    9
    9
    8
    9
    10
    13
    15
    16
    17
    19
    21
    23
    24
    25
    25
    25
    24
    24
    25
    25
    25
    23
    Height of waves offshore (m)
    0.8
    0.8
    0.7
    0.7
    0.7
    0.6
    0.7
    0.7
    0.8
    0.8
    0.9
    1.0
    1.2
    1.4
    1.5
    1.6
    1.7
    1.8
    1.8
    1.8
    1.8
    1.9
    1.9
    1.9
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    4
    4
    4
    4
    4
    4
    5
    5
    5
    6
    6
    6
    6
    6
    7
    7
    7
    7
    Direction of waves offshore
    Saturday (5 July 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Overcast Overcast
    Chance of precipitation
    20%
    20%
    20%
    20%
    20%
    10%
    10%
    10%
    20%
    Temperature (°C)
    15°
    15°
    15°
    15°
    16°
    17°
    17°
    17°
    16°
    Feels like temperature (°C)
    11°
    11°
    12°
    13°
    13°
    14°
    15°
    14°
    14°
    Wind direction and speed (mph)
    SW
    22
    SW
    21
    SW
    18
    SW
    15
    SW
    16
    SW
    17
    SW
    17
    SW
    16
    W
    13
    Wind gust (mph)
    36
    35
    30
    27
    27
    27
    26
    26
    26
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    Humidity
    93%
    94%
    96%
    95%
    92%
    88%
    86%
    88%
    84%
    UV - - 1 1 3 5 4 1 -
    Wind direction and speed (mph)
    22
    21
    18
    15
    16
    17
    17
    15
    12
    Height of waves offshore (m)
    1.9
    1.9
    1.6
    1.4
    1.3
    1.1
    1.0
    0.9
    0.8
    Period of waves offshore (s)
    7
    7
    7
    7
    7
    5
    5
    6
    6
    Direction of waves offshore
    Sunday (6 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Light rain Overcast Cloudy Cloudy Cloudy Cloudy Partly cloudy night
    Chance of precipitation
    40%
    50%
    40%
    30%
    30%
    20%
    10%
    10%
    Temperature (°C)
    15°
    14°
    14°
    15°
    16°
    17°
    16°
    14°
    Feels like temperature (°C)
    12°
    11°
    11°
    12°
    13°
    14°
    14°
    12°
    Wind direction and speed (mph)
    W
    13
    W
    13
    WNW
    14
    WNW
    16
    WNW
    15
    WNW
    13
    WNW
    12
    NW
    9
    Wind gust (mph)
    26
    27
    29
    28
    25
    22
    20
    18
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    84%
    86%
    88%
    81%
    71%
    69%
    71%
    84%
    UV - - 1 4 7 4 1 -
    Wind direction and speed (mph)
    12
    13
    14
    15
    15
    12
    11
    8
    Height of waves offshore (m)
    1.0
    1.1
    1.1
    1.0
    0.9
    0.7
    0.6
    0.5
    Period of waves offshore (s)
    7
    5
    5
    5
    5
    6
    7
    6
    Direction of waves offshore
    Monday (7 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Partly cloudy night
    Chance of precipitation
    20%
    20%
    30%
    20%
    10%
    <5%
    <5%
    <5%
    Temperature (°C)
    13°
    12°
    13°
    15°
    16°
    17°
    16°
    13°
    Feels like temperature (°C)
    11°
    10°
    11°
    12°
    13°
    15°
    14°
    12°
    Wind direction and speed (mph)
    NW
    10
    NNW
    10
    NNW
    11
    NW
    14
    NW
    14
    NW
    12
    NW
    11
    NW
    6
    Wind gust (mph)
    23
    26
    27
    26
    25
    19
    15
    10
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    VG
    Humidity
    83%
    84%
    79%
    71%
    62%
    57%
    63%
    85%
    UV - - 1 5 7 5 1 -
    Wind direction and speed (mph)
    9
    10
    11
    13
    14
    13
    11
    7
    Height of waves offshore (m)
    0.8
    1.0
    1.2
    1.1
    0.9
    0.8
    0.5
    0.5
    Period of waves offshore (s)
    6
    5
    4
    5
    5
    5
    6
    6
    Direction of waves offshore
    Tuesday (8 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    <5%
    <5%
    10%
    10%
    Temperature (°C)
    11°
    11°
    13°
    16°
    17°
    18°
    17°
    15°
    Feels like temperature (°C)
    10°
    10°
    13°
    14°
    15°
    16°
    16°
    14°
    Wind direction and speed (mph)
    NW
    6
    NW
    5
    WNW
    6
    W
    8
    WSW
    11
    SW
    10
    SW
    10
    SSW
    7
    Wind gust (mph)
    9
    8
    14
    18
    19
    17
    15
    11
    Visibility (description)
    VG
    G
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    92%
    93%
    85%
    75%
    73%
    73%
    78%
    92%
    UV - - 1 4 6 4 1 -
    Wind direction and speed (mph)
    6
    6
    6
    8
    10
    10
    10
    7
    Height of waves offshore (m)
    0.5
    0.5
    0.4
    0.4
    0.3
    0.4
    0.4
    0.4
    Period of waves offshore (s)
    5
    4
    4
    4
    4
    3
    3
    4
    Direction of waves offshore
    Wednesday (9 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Overcast Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    10%
    20%
    10%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    15°
    15°
    15°
    17°
    19°
    19°
    19°
    16°
    Feels like temperature (°C)
    14°
    14°
    15°
    16°
    17°
    18°
    17°
    15°
    Wind direction and speed (mph)
    SSW
    6
    SW
    5
    SW
    6
    SW
    9
    SW
    11
    SW
    12
    SW
    11
    SSW
    8
    Wind gust (mph)
    8
    9
    13
    17
    19
    18
    17
    10
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    VG
    G
    Humidity
    95%
    96%
    93%
    87%
    80%
    78%
    81%
    93%
    UV - - 1 4 7 4 1 -
    Wind direction and speed (mph)
    6
    Height of waves offshore (m)
    0.4
    Period of waves offshore (s)
    4
    Direction of waves offshore

    Tide times

    Thursday 3 July

    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 3 July

    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 3 July

    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 3 July

    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 4 July

    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 4 July

    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 4 July

    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 4 July

    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 5 July

    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 5 July

    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 5 July

    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 5 July

    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 6 July

    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 6 July

    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 6 July

    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 6 July

    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 7 July

    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 7 July

    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 7 July

    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 7 July

    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 8 July

    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 8 July

    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 8 July

    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 8 July

    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 9 July

    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 9 July

    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 9 July

    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 9 July

    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

    View the weather with our interactive map

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    Wales weather forecast

    Headline:

    Mainly dry with plenty of sunny spells.

    Today:

    A bright and sunny start with cloud gradually bubbling up through the day. Feeling warm in the sunshine, though the occasional shower is possible through the afternoon, mainly in the north. Winds generally remaining light. Maximum temperature 21 °C.

    Tonight:

    Any showers soon fading away to leave a dry night with widely clear skies. Some mist developing across the mountains under light winds. Feeling fresh. Minimum temperature 8 °C.

    Friday:

    Some early sunshine, before turning increasingly cloudy through the day. Mostly dry, though spells of rain spreading into northern parts later, and becoming breezy here too. Maximum temperature 22 °C.

    Outlook for Saturday to Monday:

    Breezier and cloudier over the weekend, with periods of persistent rain through Saturday and scattered showers likely on Sunday and Monday. Feeling cooler too, especially by Monday.

    Updated:

    UK long range weather forecast

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