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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

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

Tide: Next high tide (4.9m) at

Sunrise iconSunrise:
Sunset iconSunset:
VH UV
L Pollution

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

    Today (14 July 2025)
    Time
    22:00
    23:00
    Weather symbols Light shower night Cloudy
    Chance of precipitation
    80%
    40%
    Temperature
    15°
    15°
    Feels like temperature (°C)
    11°
    11°
    Wind direction and speed
    SSW
    21
    SSW
    20
    Wind gust (mph)
    36
    34
    Visibility
    E
    E
    Humidity
    73%
    78%
    UV - -
    Wind direction and speed
    21
    20
    Height of waves offshore (m)
    1.7
    1.7
    Period of waves offshore (s)
    7
    8
    Direction of waves offshore
    Tuesday (15 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 Cloudy Cloudy Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light shower day Light shower day Light shower day Light shower day Light shower day Light shower day Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    40%
    70%
    90%
    90%
    80%
    80%
    80%
    80%
    ≥95%
    ≥95%
    90%
    70%
    60%
    70%
    70%
    70%
    60%
    50%
    40%
    20%
    10%
    <5%
    10%
    Temperature (°C)
    15°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    17°
    17°
    16°
    16°
    15°
    15°
    Feels like temperature (°C)
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    12°
    12°
    12°
    13°
    13°
    14°
    14°
    14°
    13°
    13°
    Wind direction and speed (mph)
    SSW
    20
    SSW
    20
    SSW
    21
    SSW
    22
    SSW
    23
    SSW
    24
    SSW
    24
    SSW
    24
    SSW
    25
    SSW
    25
    SSW
    26
    SW
    26
    SW
    25
    SW
    24
    SW
    23
    SW
    22
    SW
    21
    SW
    20
    WSW
    18
    WSW
    17
    W
    16
    W
    14
    W
    13
    W
    12
    Wind gust (mph)
    33
    33
    36
    37
    39
    41
    41
    41
    42
    39
    39
    43
    39
    38
    34
    33
    31
    33
    29
    27
    24
    20
    19
    19
    Visibility (description)
    E
    E
    E
    E
    VG
    M
    M
    VG
    VG
    M
    M
    M
    G
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    84%
    85%
    85%
    85%
    88%
    89%
    91%
    91%
    90%
    90%
    91%
    92%
    91%
    87%
    84%
    84%
    85%
    82%
    79%
    79%
    79%
    81%
    84%
    83%
    UV - - - - - 1 1 1 1 1 1 2 3 6 7 6 5 3 2 1 1 1 - -
    Wind direction and speed (mph)
    20
    20
    21
    22
    23
    24
    24
    25
    25
    26
    26
    26
    26
    24
    23
    23
    21
    20
    18
    17
    16
    15
    14
    13
    Height of waves offshore (m)
    1.7
    1.7
    1.7
    1.8
    1.8
    2.0
    2.2
    2.4
    2.5
    2.6
    2.7
    2.7
    2.6
    2.5
    2.4
    2.3
    2.1
    1.9
    1.8
    1.7
    1.6
    1.5
    1.4
    1.3
    Period of waves offshore (s)
    8
    8
    8
    7
    7
    7
    7
    8
    8
    8
    8
    8
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Wednesday (16 July 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Clear night Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    30%
    Temperature (°C)
    15°
    15°
    13°
    14°
    17°
    18°
    18°
    17°
    15°
    Feels like temperature (°C)
    13°
    12°
    12°
    13°
    16°
    17°
    17°
    17°
    15°
    Wind direction and speed (mph)
    W
    13
    WNW
    12
    WNW
    10
    NW
    7
    WNW
    7
    W
    9
    W
    7
    WSW
    5
    SSW
    3
    Wind gust (mph)
    19
    21
    17
    14
    13
    14
    10
    9
    8
    Visibility (description)
    E
    E
    VG
    VG
    VG
    E
    E
    VG
    VG
    Humidity
    83%
    84%
    90%
    87%
    75%
    66%
    64%
    71%
    88%
    UV - - - 1 5 7 4 1 -
    Wind direction and speed (mph)
    13
    13
    10
    8
    7
    9
    7
    5
    3
    Height of waves offshore (m)
    1.2
    1.2
    1.0
    0.8
    0.6
    0.5
    0.5
    0.4
    0.4
    Period of waves offshore (s)
    9
    9
    8
    8
    8
    7
    7
    7
    7
    Direction of waves offshore
    Thursday (17 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Cloudy Overcast Cloudy Cloudy Sunny intervals Cloudy Cloudy
    Chance of precipitation
    30%
    30%
    30%
    40%
    30%
    20%
    20%
    20%
    Temperature (°C)
    14°
    14°
    16°
    18°
    19°
    19°
    18°
    17°
    Feels like temperature (°C)
    13°
    13°
    15°
    17°
    17°
    17°
    16°
    16°
    Wind direction and speed (mph)
    SSE
    5
    SSE
    6
    SSE
    7
    S
    10
    SSW
    12
    SSW
    12
    SSW
    12
    SSW
    10
    Wind gust (mph)
    9
    11
    12
    15
    16
    15
    15
    13
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    92%
    94%
    86%
    86%
    85%
    84%
    86%
    92%
    UV - - 1 2 4 3 1 -
    Wind direction and speed (mph)
    5
    7
    8
    10
    12
    13
    12
    10
    Height of waves offshore (m)
    0.5
    0.7
    0.9
    0.9
    1.0
    0.9
    0.9
    0.9
    Period of waves offshore (s)
    7
    7
    5
    5
    5
    5
    5
    5
    Direction of waves offshore
    Friday (18 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    20%
    20%
    20%
    20%
    20%
    20%
    10%
    10%
    Temperature (°C)
    16°
    15°
    16°
    18°
    19°
    19°
    18°
    16°
    Feels like temperature (°C)
    15°
    15°
    15°
    16°
    17°
    18°
    17°
    16°
    Wind direction and speed (mph)
    S
    8
    SSW
    7
    SSW
    8
    SSW
    9
    SW
    9
    SW
    9
    SW
    9
    SSW
    6
    Wind gust (mph)
    12
    12
    12
    14
    14
    13
    11
    10
    Visibility (description)
    VG
    VG
    VG
    VG
    E
    E
    VG
    VG
    Humidity
    94%
    93%
    90%
    82%
    74%
    74%
    77%
    90%
    UV - - 1 3 7 4 1 -
    Wind direction and speed (mph)
    8
    7
    7
    8
    9
    9
    8
    6
    Height of waves offshore (m)
    0.9
    0.8
    0.7
    0.7
    0.6
    0.6
    0.6
    0.5
    Period of waves offshore (s)
    6
    6
    6
    6
    8
    8
    8
    8
    Direction of waves offshore
    Saturday (19 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Cloudy Cloudy Cloudy Sunny intervals Cloudy Cloudy Cloudy
    Chance of precipitation
    10%
    20%
    30%
    30%
    30%
    30%
    40%
    40%
    Temperature (°C)
    15°
    15°
    15°
    18°
    19°
    19°
    18°
    16°
    Feels like temperature (°C)
    15°
    14°
    15°
    17°
    18°
    18°
    18°
    15°
    Wind direction and speed (mph)
    SSW
    6
    SSW
    5
    SSW
    5
    SW
    7
    SW
    9
    WSW
    9
    WSW
    8
    NNE
    6
    Wind gust (mph)
    8
    7
    10
    12
    14
    12
    8
    6
    Visibility (description)
    VG
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    93%
    95%
    91%
    82%
    77%
    79%
    79%
    94%
    UV - - 1 4 6 3 1 -
    Wind direction and speed (mph)
    5
    5
    5
    7
    9
    10
    10
    9
    Height of waves offshore (m)
    0.5
    0.4
    0.4
    0.3
    0.7
    0.8
    0.7
    0.6
    Period of waves offshore (s)
    8
    8
    8
    8
    4
    4
    4
    5
    Direction of waves offshore
    Sunday (20 July 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    40%
    40%
    50%
    40%
    40%
    30%
    20%
    30%
    Temperature (°C)
    15°
    14°
    15°
    18°
    19°
    19°
    18°
    15°
    Feels like temperature (°C)
    14°
    13°
    15°
    17°
    17°
    18°
    17°
    15°
    Wind direction and speed (mph)
    N
    6
    N
    6
    NE
    6
    WNW
    9
    WNW
    11
    W
    11
    W
    10
    WSW
    7
    Wind gust (mph)
    7
    7
    10
    14
    16
    15
    11
    7
    Visibility (description)
    G
    M
    G
    G
    VG
    VG
    VG
    G
    Humidity
    96%
    98%
    93%
    84%
    80%
    74%
    76%
    93%
    UV - - 1 3 6 4 1 -
    Wind direction and speed (mph)
    7
    Height of waves offshore (m)
    1.0
    Period of waves offshore (s)
    5
    Direction of waves offshore

    Tide times

    Monday 14 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 14 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 14 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 14 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 15 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 15 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 15 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 15 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 16 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 16 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 16 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 16 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 17 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 17 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 17 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 17 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 18 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 18 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 18 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 18 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 19 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 19 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 19 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 19 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 20 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 20 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 20 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 20 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:

    Largely dry this evening, but turning wet and windy tomorrow.

    This Evening and Tonight:

    A largely dry evening with late spells of sunshine, although a few showers may continue to affect western areas. Thicker cloud and outbreaks of rain will then arrive into the west by dawn. A fresher night than of late. Minimum temperature 8 °C.

    Tuesday:

    An unsettled start with heavy spells of thundery rain, especially in the north. Scattered heavy showers following behind with brighter intervals developing through the afternoon. Windy and cooler. Maximum temperature 21 °C.

    Outlook for Wednesday to Friday:

    Largely fine on Wednesday with sunny spells. An increase risk of showers on Thursday and Friday although still with some sunny intervals. Feeling warmer again.

    Updated:

    UK long range weather forecast

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