Caswell Bay (Swansea) 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.
🏖️ Beach safety today:

Enjoy the beach but be aware of your surroundings and look out for conditions like rip currents

• novice surfers, paddleboarders or kayakers should seek advice

Tide: Next low tide (2.2m) at

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

    7 day forecast for Caswell Bay

    Today (17 January 2026)
    Time
    23:00
    Weather symbols Clear night
    Chance of precipitation
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    E
    8
    Wind gust (mph)
    17
    Visibility
    VG
    Humidity
    93%
    UV -
    Wind direction and speed
    8
    Height of waves offshore (m)
    1.0
    Period of waves offshore (s)
    13
    Direction of waves offshore
    Sunday (18 January 2026)
    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 Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Mist Light rain Light rain Light rain Light rain Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    20%
    20%
    20%
    20%
    30%
    30%
    40%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    8
    E
    7
    ENE
    6
    ENE
    5
    ENE
    5
    ENE
    5
    ENE
    4
    E
    4
    E
    4
    E
    4
    E
    4
    ESE
    4
    ESE
    4
    SE
    4
    SE
    4
    SE
    3
    ESE
    3
    ESE
    3
    ESE
    2
    E
    2
    ENE
    2
    ENE
    3
    NE
    3
    NE
    3
    Wind gust (mph)
    16
    16
    15
    13
    12
    10
    9
    8
    8
    8
    7
    8
    8
    8
    7
    6
    5
    4
    4
    4
    4
    4
    4
    4
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    P
    P
    P
    P
    Humidity
    93%
    93%
    93%
    94%
    95%
    96%
    96%
    96%
    97%
    96%
    95%
    94%
    94%
    94%
    95%
    96%
    97%
    98%
    98%
    99%
    99%
    99%
    99%
    99%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    8
    7
    6
    5
    5
    5
    4
    4
    4
    4
    4
    4
    4
    4
    4
    3
    3
    3
    2
    2
    2
    2
    2
    2
    Height of waves offshore (m)
    1.0
    1.0
    1.0
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.7
    0.6
    0.6
    0.6
    0.6
    0.6
    0.5
    0.5
    Period of waves offshore (s)
    12
    12
    12
    12
    12
    12
    12
    12
    12
    12
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    11
    Direction of waves offshore
    Monday (19 January 2026)
    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 Mist Mist Mist Mist Mist Mist Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    50%
    50%
    40%
    30%
    30%
    20%
    20%
    20%
    30%
    20%
    20%
    30%
    30%
    30%
    30%
    20%
    30%
    30%
    30%
    30%
    30%
    30%
    40%
    50%
    Temperature (°C)
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ENE
    3
    ENE
    3
    E
    3
    ESE
    3
    ESE
    3
    ESE
    3
    ESE
    4
    ESE
    4
    E
    4
    E
    4
    ESE
    5
    ESE
    5
    ESE
    6
    ESE
    6
    ESE
    7
    SE
    7
    SE
    7
    ESE
    8
    SE
    8
    SE
    8
    SE
    8
    SE
    8
    ESE
    8
    SE
    8
    Wind gust (mph)
    4
    4
    5
    5
    6
    6
    6
    7
    8
    9
    10
    10
    12
    11
    13
    11
    13
    14
    15
    15
    14
    14
    12
    13
    Visibility (description)
    P
    M
    M
    P
    P
    M
    M
    M
    M
    M
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    99%
    99%
    99%
    99%
    99%
    99%
    99%
    99%
    99%
    99%
    97%
    96%
    95%
    93%
    91%
    90%
    93%
    95%
    96%
    95%
    94%
    94%
    94%
    94%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    2
    3
    3
    3
    3
    3
    3
    3
    4
    4
    5
    5
    6
    6
    7
    7
    7
    7
    8
    8
    8
    8
    8
    7
    Height of waves offshore (m)
    0.6
    0.6
    0.6
    0.6
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.5
    0.6
    0.7
    0.9
    0.9
    0.9
    0.9
    0.9
    1.0
    1.0
    1.1
    1.0
    1.0
    Period of waves offshore (s)
    11
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    10
    9
    9
    9
    9
    17
    17
    16
    16
    16
    16
    Direction of waves offshore
    Tuesday (20 January 2026)
    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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy Cloudy Overcast Overcast Overcast Overcast
    Chance of precipitation
    40%
    30%
    20%
    20%
    20%
    20%
    30%
    20%
    20%
    20%
    10%
    10%
    10%
    20%
    20%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    40%
    40%
    Temperature (°C)
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SE
    8
    SE
    7
    SE
    7
    SE
    8
    ESE
    8
    ESE
    9
    ESE
    10
    ESE
    11
    ESE
    11
    ESE
    12
    ESE
    13
    ESE
    14
    ESE
    15
    ESE
    16
    ESE
    17
    ESE
    17
    ESE
    17
    ESE
    16
    SE
    16
    SE
    15
    SE
    15
    SE
    16
    SE
    16
    ESE
    16
    Wind gust (mph)
    14
    14
    14
    14
    14
    16
    17
    20
    19
    20
    20
    20
    21
    21
    22
    22
    23
    22
    23
    23
    24
    25
    26
    27
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    Humidity
    95%
    96%
    96%
    96%
    95%
    95%
    95%
    95%
    95%
    93%
    92%
    89%
    86%
    86%
    85%
    85%
    86%
    87%
    88%
    88%
    91%
    89%
    90%
    91%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    7
    6
    6
    7
    8
    9
    10
    11
    12
    12
    14
    15
    16
    17
    18
    18
    17
    17
    16
    16
    16
    16
    16
    16
    Height of waves offshore (m)
    1.1
    1.1
    1.1
    1.1
    1.1
    1.1
    1.1
    0.9
    0.9
    0.9
    0.9
    0.9
    0.9
    0.9
    1.0
    1.0
    1.0
    1.0
    1.1
    1.1
    1.2
    1.2
    1.2
    1.2
    Period of waves offshore (s)
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    15
    14
    14
    14
    14
    14
    Direction of waves offshore
    Wednesday (21 January 2026)
    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 Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain Overcast Overcast
    Chance of precipitation
    40%
    40%
    50%
    40%
    40%
    40%
    30%
    40%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    60%
    50%
    50%
    50%
    Temperature (°C)
    10°
    10°
    10°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    17
    ESE
    17
    ESE
    18
    ESE
    19
    ESE
    19
    ESE
    20
    ESE
    20
    SE
    19
    SE
    19
    SE
    19
    SE
    19
    SE
    19
    SE
    20
    SE
    20
    SE
    20
    SE
    19
    SE
    19
    SE
    19
    SE
    19
    SE
    18
    SE
    18
    SE
    17
    SE
    17
    SE
    15
    Wind gust (mph)
    28
    28
    29
    30
    28
    29
    30
    29
    29
    30
    30
    28
    28
    28
    28
    26
    28
    28
    28
    28
    28
    25
    24
    23
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    91%
    89%
    88%
    90%
    90%
    91%
    89%
    89%
    89%
    88%
    88%
    86%
    86%
    85%
    85%
    86%
    88%
    89%
    88%
    90%
    90%
    91%
    91%
    90%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    17
    18
    19
    19
    20
    20
    20
    20
    20
    19
    19
    20
    20
    20
    20
    19
    19
    19
    19
    19
    18
    17
    16
    15
    Height of waves offshore (m)
    1.1
    1.1
    1.1
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.2
    1.3
    1.2
    1.2
    1.1
    1.1
    1.1
    1.1
    1.1
    1.2
    1.2
    1.2
    1.2
    1.2
    Period of waves offshore (s)
    14
    14
    14
    13
    13
    13
    13
    13
    13
    11
    11
    9
    9
    9
    9
    9
    11
    10
    9
    9
    9
    8
    9
    9
    Direction of waves offshore
    Thursday (22 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Cloudy
    Chance of precipitation
    50%
    40%
    30%
    30%
    30%
    20%
    20%
    30%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SE
    14
    SE
    12
    SE
    12
    ESE
    11
    SE
    12
    SE
    12
    SE
    11
    ESE
    11
    Wind gust (mph)
    19
    17
    15
    19
    20
    19
    19
    25
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    90%
    92%
    92%
    92%
    87%
    87%
    91%
    92%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    14
    12
    11
    11
    12
    11
    10
    11
    Height of waves offshore (m)
    1.2
    1.2
    1.4
    1.6
    1.6
    1.5
    1.4
    1.3
    Period of waves offshore (s)
    9
    19
    17
    17
    16
    16
    16
    15
    Direction of waves offshore
    Friday (23 January 2026)
    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
    30%
    40%
    40%
    30%
    30%
    40%
    30%
    30%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    12
    SE
    12
    ESE
    12
    ESE
    13
    ESE
    14
    ESE
    13
    ESE
    13
    ESE
    12
    Wind gust (mph)
    27
    26
    23
    29
    25
    19
    20
    24
    Visibility (description)
    G
    G
    G
    G
    VG
    G
    G
    G
    Humidity
    92%
    92%
    92%
    92%
    86%
    83%
    88%
    90%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    11
    Height of waves offshore (m)
    1.2
    Period of waves offshore (s)
    15
    Direction of waves offshore

    Tide times

    Saturday 17 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 17 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 18 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 19 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 20 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 21 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 21 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 21 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 21 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 22 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 22 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 22 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 22 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 23 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 23 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 23 January

    Tide times and heights are from Mumbles tidal station which is 2.7 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 23 January

    Tide times and heights are from Mumbles tidal station which is 2.7 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    UK video forecast

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    Wales weather forecast

    Headline:

    Cloudy and rather murky. Rain and drizzle at times.

    This Evening and Tonight:

    Scattered showers clearing this evening. Then generally cloudy overnight, with mist and hill fog developing. Outbreaks of rain and drizzle also possible, especially over the hills. Patchy frost and fog for parts of the far west where skies remain clear. Minimum temperature 0 °C.

    Sunday:

    Cloudy for most with periods of rain, which could be heavy in places. Mainly dry for western coasts with some sunny spells possible, once early fog clears. Winds remaining light. Maximum temperature 7 °C.

    Outlook for Monday to Wednesday:

    A changeable period of weather with rain or showers, possibly heavy in at times. Drier and brighter periods are likely too. Temperatures around or slightly above average. Windy at times.

    Updated:

    UK long range weather forecast

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