St Clears (Carmarthenshire) weather

Forecast days

Heavy rain changing to partly cloudy by nighttime.
Sunrise iconSunrise:
Sunset iconSunset:
M UV
L Pollution

    7 day forecast for St Clears

    Today (10 September 2026)
    Time
    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 Light shower day Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Mist
    Chance of precipitation
    ≥95%
    90%
    90%
    ≥95%
    60%
    30%
    10%
    <5%
    <5%
    10%
    Temperature
    17°
    17°
    17°
    17°
    17°
    17°
    16°
    15°
    15°
    14°
    Feels like temperature (°C)
    15°
    15°
    15°
    16°
    17°
    17°
    16°
    15°
    15°
    14°
    Wind direction and speed
    SSW
    15
    SSW
    15
    SSW
    14
    SSW
    11
    SW
    9
    SW
    7
    SW
    7
    WSW
    7
    WSW
    6
    W
    5
    Wind gust (mph)
    30
    30
    29
    28
    22
    19
    19
    17
    17
    17
    Visibility
    M
    P
    P
    M
    M
    M
    M
    M
    G
    M
    Humidity
    94%
    95%
    94%
    95%
    95%
    94%
    94%
    95%
    95%
    96%
    UV 2 1 1 1 1 1 - - - -
    Friday (11 September 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 Mist Mist Mist Mist Mist Mist Mist Mist Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Clear night Clear night Clear night Clear night
    Chance of precipitation
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    14°
    15°
    15°
    14°
    14°
    13°
    12°
    10°
    13°
    15°
    17°
    18°
    18°
    19°
    20°
    20°
    20°
    19°
    18°
    16°
    12°
    10°
    Feels like temperature (°C)
    14°
    15°
    15°
    14°
    14°
    13°
    11°
    10°
    13°
    15°
    17°
    18°
    18°
    18°
    19°
    19°
    19°
    18°
    18°
    15°
    12°
    10°
    Wind direction and speed (mph)
    W
    3
    WNW
    3
    NW
    3
    WNW
    4
    W
    6
    WNW
    6
    WNW
    6
    WNW
    3
    W
    3
    W
    3
    WNW
    4
    NW
    5
    NW
    5
    WNW
    6
    WNW
    6
    WNW
    6
    WNW
    6
    WNW
    6
    WNW
    5
    W
    4
    W
    3
    NW
    3
    NNW
    2
    ENE
    2
    Wind gust (mph)
    13
    13
    13
    17
    16
    17
    15
    13
    12
    13
    14
    14
    15
    15
    16
    16
    15
    15
    13
    12
    11
    10
    9
    9
    Visibility (description)
    P
    M
    P
    P
    P
    P
    P
    P
    M
    M
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    96%
    96%
    96%
    97%
    97%
    96%
    97%
    97%
    95%
    91%
    83%
    75%
    71%
    65%
    63%
    59%
    58%
    58%
    63%
    76%
    86%
    91%
    93%
    94%
    UV - - - - - - 1 1 1 2 3 4 4 4 4 3 2 1 1 1 - - - -
    Saturday (12 September 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 Cloudy Overcast Overcast Overcast Overcast Light rain Light rain Light rain Light rain Heavy rain Light rain Light rain Light rain Mist Mist Mist Mist
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    40%
    50%
    60%
    70%
    70%
    70%
    80%
    80%
    70%
    50%
    40%
    40%
    40%
    30%
    Temperature (°C)
    10°
    11°
    13°
    15°
    16°
    16°
    16°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    19°
    18°
    18°
    18°
    18°
    18°
    Feels like temperature (°C)
    10°
    11°
    13°
    14°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    17°
    17°
    18°
    17°
    17°
    17°
    17°
    17°
    Wind direction and speed (mph)
    ENE
    2
    ENE
    3
    E
    3
    ESE
    4
    S
    6
    SSW
    7
    SSW
    8
    SSW
    8
    SSW
    10
    SW
    11
    SW
    13
    SW
    14
    SW
    14
    SW
    15
    SW
    15
    SW
    14
    SW
    13
    SW
    13
    WSW
    11
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    9
    WSW
    8
    Wind gust (mph)
    9
    13
    13
    16
    21
    23
    24
    26
    28
    30
    30
    31
    32
    32
    31
    31
    29
    28
    26
    25
    24
    23
    22
    21
    Visibility (description)
    G
    G
    G
    G
    G
    VG
    VG
    VG
    G
    G
    G
    M
    M
    M
    M
    M
    M
    P
    P
    P
    P
    P
    P
    P
    Humidity
    93%
    92%
    91%
    90%
    87%
    86%
    85%
    86%
    84%
    85%
    85%
    85%
    87%
    89%
    91%
    92%
    94%
    95%
    96%
    96%
    96%
    96%
    95%
    95%
    UV - - - - - - 1 1 1 1 1 2 2 2 1 1 1 1 1 1 - - - -
    Sunday (13 September 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 Mist Mist Mist Mist Mist Mist Mist Mist Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Mist Mist Mist
    Chance of precipitation
    30%
    30%
    20%
    20%
    30%
    30%
    30%
    20%
    20%
    10%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    10%
    Temperature (°C)
    18°
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    16°
    17°
    18°
    19°
    19°
    20°
    20°
    20°
    20°
    20°
    19°
    18°
    16°
    16°
    16°
    15°
    Feels like temperature (°C)
    17°
    17°
    17°
    16°
    16°
    16°
    16°
    16°
    16°
    17°
    19°
    19°
    20°
    20°
    20°
    20°
    19°
    20°
    19°
    18°
    17°
    16°
    16°
    16°
    Wind direction and speed (mph)
    WSW
    7
    WSW
    7
    W
    6
    W
    6
    W
    5
    W
    4
    W
    4
    W
    4
    W
    4
    WNW
    3
    NW
    4
    NW
    3
    WNW
    3
    W
    4
    W
    5
    WSW
    6
    WSW
    6
    WSW
    6
    WSW
    6
    W
    4
    WSW
    3
    WSW
    3
    WSW
    2
    W
    2
    Wind gust (mph)
    21
    19
    18
    17
    15
    15
    14
    13
    12
    12
    12
    12
    12
    13
    14
    15
    14
    13
    12
    11
    10
    10
    9
    9
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    M
    P
    P
    Humidity
    95%
    95%
    95%
    96%
    96%
    96%
    97%
    97%
    96%
    92%
    86%
    80%
    77%
    73%
    74%
    72%
    74%
    75%
    78%
    85%
    91%
    93%
    95%
    96%
    UV - - - - - - 1 1 1 1 2 3 3 4 3 2 2 1 1 1 - - - -
    Monday (14 September 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 Mist Mist Mist Mist Mist Mist Mist Mist Mist Mist Mist Mist Mist Overcast Overcast Overcast Overcast Overcast Mist Mist Mist Mist Mist Mist
    Chance of precipitation
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    30%
    30%
    40%
    40%
    30%
    30%
    30%
    30%
    30%
    40%
    40%
    40%
    40%
    40%
    40%
    Temperature (°C)
    15°
    16°
    16°
    16°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    19°
    19°
    19°
    20°
    20°
    20°
    20°
    19°
    19°
    18°
    18°
    18°
    18°
    Feels like temperature (°C)
    15°
    16°
    17°
    17°
    17°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    18°
    19°
    18°
    18°
    18°
    18°
    17°
    17°
    Wind direction and speed (mph)
    N
    3
    ESE
    2
    SE
    3
    SSE
    3
    S
    4
    SSW
    6
    SSW
    6
    SSW
    6
    SSW
    7
    SSW
    8
    SSW
    9
    SSW
    10
    SSW
    11
    SW
    11
    SW
    13
    SW
    13
    SW
    13
    SW
    11
    SW
    11
    SW
    11
    SW
    10
    SW
    10
    WSW
    10
    WSW
    9
    Wind gust (mph)
    13
    9
    13
    13
    18
    17
    18
    19
    19
    21
    23
    25
    26
    27
    27
    28
    26
    26
    25
    25
    25
    23
    22
    21
    Visibility (description)
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    P
    M
    M
    M
    M
    M
    M
    M
    M
    P
    P
    P
    M
    Humidity
    96%
    95%
    96%
    96%
    96%
    97%
    97%
    97%
    95%
    93%
    91%
    92%
    92%
    92%
    92%
    90%
    91%
    90%
    92%
    94%
    94%
    95%
    95%
    95%
    UV - - - - - - 1 1 1 1 1 2 3 2 2 2 1 1 1 1 - - - -
    Tuesday (15 September 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Cloudy Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    40%
    40%
    30%
    20%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    18°
    18°
    17°
    15°
    16°
    17°
    17°
    16°
    13°
    Feels like temperature (°C)
    17°
    17°
    16°
    14°
    15°
    15°
    15°
    14°
    12°
    Wind direction and speed (mph)
    WSW
    9
    W
    8
    WNW
    7
    WNW
    7
    NW
    10
    NW
    11
    NW
    11
    NW
    9
    NW
    7
    Wind gust (mph)
    20
    19
    17
    22
    24
    26
    24
    17
    17
    Visibility (description)
    M
    M
    M
    M
    G
    VG
    VG
    VG
    G
    Humidity
    95%
    94%
    95%
    94%
    83%
    71%
    68%
    76%
    83%
    UV - - - 1 2 4 2 1 -
    Wednesday (16 September 2026)
    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 Overcast Overcast Overcast Overcast
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    20%
    Temperature (°C)
    13°
    13°
    12°
    15°
    17°
    16°
    15°
    14°
    Feels like temperature (°C)
    11°
    12°
    11°
    13°
    15°
    15°
    14°
    13°
    Wind direction and speed (mph)
    NW
    8
    NW
    7
    NW
    7
    NW
    10
    WNW
    10
    WNW
    9
    WNW
    7
    W
    6
    Wind gust (mph)
    17
    16
    20
    22
    21
    20
    14
    14
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    85%
    88%
    91%
    79%
    73%
    72%
    81%
    88%
    UV - - 1 2 4 2 1 -

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    Wales weather forecast

    Headline:

    Changeable next few days, with sunshine and some showery rain.

    Today:

    Early bright spells will give way to increasing cloud and some rain from the west on Thursday morning, and this will lead into a rather wet and breezy afternoon. The strongest winds will be around coasts and over high ground. Maximum temperature 19 °C.

    Tonight:

    The heaviest of the rain will clear eastwards this evening, leaving showers for a time, these easing by dawn with some clearer spells. A milder night than the previous night. Minimum temperature 10 °C.

    Friday:

    Isolated showers first thing Friday morning, but dissipating under a ridge of high pressure. This leaves brighter spells in the afternoon, especially in the west. Temperatures will be near average. Maximum temperature 20 °C.

    Outlook for Saturday to Monday:

    More wet and windy weather returns on Saturday, followed by another ridge of high pressure and drier weather on Sunday. Staying autumnal into next week with further spells of rain.

    Updated:

    UK long range weather forecast