Cwmystwyth (Ceredigion) weather

Forecast days

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

    7 day forecast for Cwmystwyth

    Today (15 September 2025)
    Time
    22:00
    23:00
    Weather symbols Overcast Cloudy
    Chance of precipitation
    20%
    40%
    Temperature
    12°
    11°
    Feels like temperature (°C)
    Wind direction and speed
    W
    18
    W
    18
    Wind gust (mph)
    46
    44
    Visibility
    VG
    VG
    Humidity
    78%
    81%
    UV - -
    Tuesday (16 September 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 Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Light rain Light rain Light rain Heavy rain Heavy rain
    Chance of precipitation
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    30%
    30%
    20%
    20%
    10%
    20%
    40%
    40%
    50%
    70%
    ≥95%
    ≥95%
    ≥95%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    11°
    11°
    12°
    12°
    13°
    13°
    14°
    14°
    13°
    13°
    12°
    12°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    10°
    11°
    11°
    11°
    11°
    12°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    W
    17
    W
    17
    W
    16
    W
    16
    W
    15
    W
    15
    W
    14
    W
    12
    W
    12
    W
    12
    W
    12
    W
    12
    W
    12
    W
    12
    W
    11
    W
    11
    W
    10
    WSW
    9
    WSW
    7
    SW
    6
    SSW
    5
    SSW
    5
    SSW
    5
    S
    6
    Wind gust (mph)
    43
    43
    41
    40
    39
    37
    34
    31
    31
    32
    32
    31
    30
    30
    29
    28
    26
    23
    19
    17
    16
    16
    17
    19
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    M
    M
    Humidity
    83%
    83%
    82%
    84%
    84%
    84%
    85%
    85%
    84%
    80%
    76%
    76%
    72%
    72%
    68%
    69%
    72%
    76%
    81%
    87%
    90%
    93%
    96%
    96%
    UV - - - - - - 1 1 1 1 2 2 4 3 4 2 2 1 1 1 - - - -
    Wednesday (17 September 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 Heavy rain Heavy rain Light rain Light rain Light shower day Overcast Overcast Overcast Cloudy Overcast Overcast Overcast Overcast Light rain Light rain Light rain
    Chance of precipitation
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    80%
    80%
    70%
    50%
    40%
    40%
    40%
    40%
    40%
    40%
    40%
    50%
    60%
    60%
    60%
    Temperature (°C)
    11°
    12°
    12°
    12°
    13°
    14°
    14°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    15°
    14°
    14°
    14°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    11°
    12°
    12°
    13°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    13°
    Wind direction and speed (mph)
    S
    7
    S
    9
    S
    11
    S
    14
    SSW
    15
    SSW
    16
    SW
    15
    SW
    15
    SW
    15
    SW
    15
    WSW
    15
    WSW
    15
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    13
    SW
    13
    SW
    12
    SW
    12
    SW
    11
    SW
    11
    SW
    11
    Wind gust (mph)
    22
    26
    31
    36
    38
    38
    39
    39
    38
    37
    35
    35
    35
    35
    35
    34
    33
    33
    30
    29
    28
    29
    28
    28
    Visibility (description)
    M
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    M
    G
    VG
    VG
    E
    VG
    VG
    G
    G
    G
    M
    M
    M
    Humidity
    96%
    97%
    96%
    96%
    97%
    97%
    98%
    99%
    99%
    99%
    99%
    98%
    96%
    95%
    94%
    93%
    92%
    92%
    90%
    92%
    96%
    97%
    97%
    99%
    UV - - - - - - 1 1 1 1 1 2 2 3 3 2 2 1 1 1 - - - -
    Thursday (18 September 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 Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Light rain Light rain Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    70%
    70%
    70%
    70%
    70%
    70%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    50%
    50%
    50%
    60%
    60%
    50%
    50%
    40%
    50%
    40%
    Temperature (°C)
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    15°
    14°
    14°
    14°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    15°
    15°
    14°
    15°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    Wind direction and speed (mph)
    SW
    11
    SW
    12
    SW
    12
    SW
    12
    SW
    12
    SW
    12
    SW
    13
    SW
    12
    SW
    12
    SW
    13
    SW
    13
    SW
    13
    SW
    13
    SW
    13
    SW
    13
    WSW
    13
    SW
    13
    SW
    12
    SW
    11
    SW
    10
    SW
    10
    SW
    9
    SW
    9
    SW
    9
    Wind gust (mph)
    29
    30
    31
    33
    34
    34
    34
    32
    34
    35
    36
    35
    35
    34
    33
    33
    32
    30
    28
    27
    25
    23
    22
    21
    Visibility (description)
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    VG
    VG
    VG
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    99%
    98%
    99%
    99%
    98%
    99%
    99%
    98%
    98%
    98%
    97%
    98%
    97%
    97%
    96%
    94%
    93%
    95%
    96%
    96%
    97%
    97%
    97%
    98%
    UV - - - - - - 1 1 1 1 1 1 2 2 2 1 1 1 1 1 - - - -
    Friday (19 September 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 Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Light rain Light rain Light rain Overcast Light rain Cloudy Cloudy Light rain Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    60%
    40%
    40%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    Temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    16°
    16°
    15°
    14°
    14°
    14°
    13°
    Feels like temperature (°C)
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    14°
    14°
    13°
    13°
    13°
    12°
    Wind direction and speed (mph)
    SW
    9
    SW
    9
    SW
    8
    SSW
    8
    SSW
    8
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    9
    SSW
    10
    SSW
    10
    SSW
    11
    SSW
    11
    SSW
    11
    SW
    10
    SW
    10
    SSW
    10
    SSW
    9
    SSW
    9
    SSW
    8
    SSW
    7
    SSW
    7
    SSW
    7
    Wind gust (mph)
    21
    19
    17
    17
    19
    23
    24
    26
    27
    27
    25
    25
    26
    27
    24
    25
    25
    21
    19
    17
    17
    16
    17
    16
    Visibility (description)
    G
    G
    G
    G
    G
    M
    M
    M
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    VG
    G
    G
    Humidity
    97%
    98%
    98%
    98%
    98%
    98%
    98%
    98%
    98%
    98%
    97%
    95%
    93%
    93%
    92%
    92%
    90%
    89%
    92%
    94%
    95%
    95%
    96%
    96%
    UV - - - - - - 1 1 1 1 1 2 3 2 2 2 1 1 1 1 - - - -
    Saturday (20 September 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    40%
    50%
    40%
    50%
    50%
    50%
    30%
    30%
    30%
    Temperature (°C)
    13°
    13°
    12°
    11°
    13°
    14°
    13°
    11°
    10°
    Feels like temperature (°C)
    12°
    12°
    11°
    10°
    11°
    12°
    12°
    10°
    Wind direction and speed (mph)
    SSW
    7
    SW
    7
    SW
    6
    SSW
    6
    SW
    8
    WSW
    10
    WSW
    9
    W
    7
    SSW
    7
    Wind gust (mph)
    15
    14
    12
    12
    18
    22
    18
    11
    12
    Visibility (description)
    G
    G
    G
    G
    G
    VG
    VG
    VG
    G
    Humidity
    96%
    96%
    96%
    96%
    92%
    82%
    80%
    88%
    93%
    UV - - - 1 2 4 2 1 -
    Sunday (21 September 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    30%
    30%
    40%
    40%
    30%
    20%
    20%
    Temperature (°C)
    10°
    12°
    12°
    10°
    Feels like temperature (°C)
    10°
    10°
    Wind direction and speed (mph)
    NW
    6
    NW
    7
    NNW
    6
    NNW
    8
    NNW
    9
    NNW
    9
    NNW
    7
    NNW
    6
    Wind gust (mph)
    10
    9
    14
    18
    18
    16
    15
    13
    Visibility (description)
    G
    G
    G
    G
    G
    VG
    VG
    G
    Humidity
    95%
    95%
    95%
    88%
    74%
    71%
    82%
    91%
    UV - - 1 2 3 2 1 -

    UK video forecast

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

    Wales weather forecast

    Headline:

    A changeable week to come.

    This Evening and Tonight:

    Windy this evening with coastal gales at first but winds gradually easing into the early hours. Scattered showers, some heavy this evening, but many places turning drier overnight. Staying fairly mild. Minimum temperature 10 °C.

    Tuesday:

    A drier day albeit still the chance of a few isolated showers. Sunny spells are likely through the morning, but any sunshine turning hazy through the afternoon. Still breezy. Maximum temperature 17 °C.

    Outlook for Wednesday to Friday:

    Remaining changeable and often windy with rain at times and a chance of coastal gales. A little milder and more humid by the end of the week.

    Updated:

    UK long range weather forecast

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