Dyffryn Cellwen (Neath Port Talbot) weather

Forecast days

Light showers.
Sunrise iconSunrise:
Sunset iconSunset:
H UV
L Pollution

    7 day forecast for Dyffryn Cellwen

    Today (17 May 2026)
    Time
    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 shower day Light shower day Cloudy Cloudy Light shower day Light shower day Light shower day Heavy shower day Light shower day Light shower night Light shower night Light rain
    Chance of precipitation
    90%
    60%
    20%
    40%
    90%
    90%
    90%
    ≥95%
    90%
    70%
    80%
    80%
    Temperature
    10°
    11°
    12°
    11°
    11°
    10°
    10°
    Feels like temperature (°C)
    10°
    Wind direction and speed
    WSW
    8
    WSW
    9
    WSW
    10
    WSW
    11
    WSW
    12
    WSW
    12
    WSW
    11
    WSW
    10
    WSW
    9
    WSW
    8
    WSW
    7
    WSW
    7
    Wind gust (mph)
    23
    24
    26
    28
    29
    27
    25
    23
    20
    18
    19
    20
    Visibility
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    Humidity
    74%
    66%
    57%
    56%
    61%
    73%
    77%
    81%
    85%
    87%
    88%
    90%
    UV 2 4 4 2 2 1 1 1 1 1 - -
    Monday (18 May 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 Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy shower day Heavy shower day Heavy shower day Heavy rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain
    Chance of precipitation
    90%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    90%
    80%
    80%
    70%
    70%
    70%
    80%
    80%
    70%
    60%
    60%
    60%
    80%
    90%
    90%
    90%
    ≥95%
    ≥95%
    Temperature (°C)
    10°
    10°
    10°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    7
    SW
    7
    SW
    8
    SW
    8
    WSW
    8
    SW
    7
    WSW
    7
    WSW
    6
    WSW
    6
    WSW
    7
    SW
    7
    SW
    8
    SW
    9
    SW
    9
    SW
    9
    SW
    9
    SSW
    9
    SSW
    8
    SSW
    7
    S
    7
    SSE
    7
    SSE
    8
    SSE
    9
    SSE
    9
    Wind gust (mph)
    20
    21
    23
    22
    23
    19
    18
    17
    19
    18
    18
    20
    20
    22
    23
    22
    20
    19
    19
    19
    21
    22
    25
    26
    Visibility (description)
    M
    M
    M
    M
    M
    M
    G
    G
    G
    G
    G
    G
    G
    M
    M
    G
    G
    G
    M
    M
    M
    M
    M
    M
    Humidity
    91%
    91%
    92%
    93%
    93%
    94%
    93%
    92%
    90%
    86%
    83%
    83%
    84%
    84%
    85%
    82%
    79%
    75%
    84%
    91%
    92%
    93%
    93%
    94%
    UV - - - - - 1 1 1 1 1 2 3 3 2 3 2 2 1 1 1 1 1 - -
    Tuesday (19 May 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 Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Light shower day Light shower day Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain Light rain
    Chance of precipitation
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    80%
    70%
    60%
    70%
    ≥95%
    90%
    90%
    70%
    70%
    60%
    40%
    40%
    40%
    50%
    40%
    50%
    50%
    60%
    60%
    Temperature (°C)
    10°
    10°
    10°
    11°
    11°
    11°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSE
    10
    SSE
    10
    SSE
    11
    S
    11
    S
    11
    SSW
    11
    SW
    11
    SW
    11
    SW
    11
    SW
    11
    SSW
    12
    SW
    13
    SW
    13
    SW
    13
    SW
    14
    SW
    15
    SW
    15
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    14
    SW
    13
    Wind gust (mph)
    28
    28
    28
    27
    26
    25
    24
    24
    25
    26
    27
    29
    31
    32
    33
    33
    33
    32
    32
    31
    31
    30
    30
    30
    Visibility (description)
    M
    M
    VP
    VP
    VP
    VP
    P
    P
    P
    M
    P
    P
    M
    M
    M
    M
    M
    M
    M
    G
    M
    M
    M
    M
    Humidity
    94%
    95%
    96%
    97%
    98%
    98%
    97%
    96%
    95%
    94%
    95%
    94%
    93%
    92%
    88%
    86%
    86%
    85%
    86%
    86%
    88%
    91%
    92%
    92%
    UV - - - - - 1 1 1 1 1 2 3 4 4 3 3 2 1 1 1 1 1 - -
    Wednesday (20 May 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 Light rain Light rain Light rain Light rain Light rain Light rain Light rain Light rain Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    70%
    70%
    70%
    60%
    70%
    70%
    60%
    60%
    50%
    50%
    50%
    50%
    50%
    30%
    30%
    20%
    20%
    20%
    10%
    20%
    20%
    10%
    20%
    20%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    13°
    13°
    13°
    13°
    12°
    12°
    12°
    12°
    11°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    SW
    13
    SW
    13
    SW
    14
    WSW
    14
    WSW
    13
    WSW
    13
    WSW
    13
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    14
    WSW
    15
    WSW
    15
    WSW
    15
    WSW
    15
    WSW
    14
    WSW
    13
    WSW
    13
    WSW
    12
    WSW
    11
    WSW
    10
    SW
    9
    SW
    8
    SW
    7
    Wind gust (mph)
    30
    31
    31
    30
    30
    30
    29
    30
    30
    30
    30
    30
    32
    32
    31
    30
    29
    27
    25
    23
    21
    18
    17
    16
    Visibility (description)
    M
    M
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    P
    M
    M
    M
    G
    G
    G
    M
    P
    P
    Humidity
    93%
    94%
    94%
    94%
    94%
    95%
    95%
    94%
    94%
    94%
    91%
    91%
    90%
    91%
    87%
    87%
    86%
    88%
    86%
    87%
    90%
    93%
    95%
    96%
    UV - - - - - 1 1 1 1 2 2 3 4 3 3 3 2 2 1 1 1 1 - -
    Thursday (21 May 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 Overcast Mist Overcast Overcast Overcast Overcast Overcast Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Clear night Clear night Clear night
    Chance of precipitation
    40%
    40%
    40%
    40%
    50%
    50%
    50%
    40%
    40%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    13°
    13°
    15°
    16°
    17°
    17°
    18°
    18°
    18°
    17°
    16°
    15°
    14°
    13°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    12°
    12°
    14°
    15°
    15°
    16°
    17°
    17°
    17°
    16°
    15°
    14°
    13°
    12°
    Wind direction and speed (mph)
    SW
    7
    SW
    7
    SSW
    7
    SW
    7
    SSW
    7
    SSW
    6
    SSW
    6
    SSW
    6
    SSW
    6
    SSW
    6
    SSW
    6
    SSW
    7
    SSW
    7
    SSW
    7
    SSW
    7
    SSW
    7
    S
    7
    S
    8
    SSE
    8
    SE
    8
    SE
    7
    ESE
    7
    ESE
    7
    E
    7
    Wind gust (mph)
    16
    16
    16
    16
    16
    15
    15
    16
    15
    17
    17
    17
    18
    19
    18
    19
    19
    18
    19
    18
    16
    17
    19
    19
    Visibility (description)
    P
    P
    VP
    VP
    VP
    VP
    VP
    VP
    VP
    P
    P
    P
    P
    M
    M
    G
    G
    VG
    VG
    VG
    VG
    VG
    G
    G
    Humidity
    97%
    97%
    98%
    98%
    99%
    99%
    99%
    99%
    99%
    97%
    91%
    86%
    79%
    73%
    71%
    69%
    65%
    64%
    63%
    67%
    70%
    78%
    79%
    82%
    UV - - - - - 1 1 1 1 1 3 3 4 4 4 4 3 2 1 1 1 1 - -
    Friday (22 May 2026)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Partly cloudy night Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy
    Chance of precipitation
    <5%
    <5%
    10%
    20%
    20%
    20%
    30%
    30%
    30%
    Temperature (°C)
    13°
    12°
    12°
    12°
    15°
    17°
    17°
    15°
    12°
    Feels like temperature (°C)
    11°
    11°
    10°
    11°
    14°
    16°
    15°
    14°
    11°
    Wind direction and speed (mph)
    E
    8
    E
    8
    ESE
    7
    S
    7
    S
    9
    SSW
    10
    SW
    10
    SW
    9
    SW
    7
    Wind gust (mph)
    20
    18
    17
    19
    23
    23
    22
    20
    18
    Visibility (description)
    G
    G
    M
    P
    M
    VG
    VG
    G
    M
    Humidity
    84%
    84%
    88%
    91%
    86%
    77%
    78%
    86%
    94%
    UV - - - 1 3 5 3 1 -
    Saturday (23 May 2026)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Cloudy Overcast Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Mist
    Chance of precipitation
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    20%
    Temperature (°C)
    11°
    11°
    11°
    14°
    16°
    17°
    15°
    12°
    Feels like temperature (°C)
    10°
    12°
    14°
    15°
    13°
    11°
    Wind direction and speed (mph)
    SW
    8
    SW
    7
    SW
    8
    SW
    9
    SW
    11
    SW
    11
    SW
    10
    SW
    7
    Wind gust (mph)
    18
    17
    20
    23
    25
    24
    21
    16
    Visibility (description)
    P
    P
    P
    G
    G
    G
    G
    M
    Humidity
    96%
    96%
    95%
    86%
    73%
    72%
    79%
    95%
    UV - - 1 3 5 3 1 -

    UK video forecast

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    Wales weather forecast

    Headline:

    Staying changeable during the next few days.

    Today:

    A bright start but cloud will quickly bubble up allowing a few showers to develop by lunchtime. Showers then becoming increasingly frequent and heavier later in the day. Feeling a little less cool but temperatures still below average. Maximum temperature 15 °C.

    Tonight:

    Scattered showers continuing overnight with some clearer spells in between. Showers perhaps becoming more organised and heavier later during the early hours. Turning chilly in the countryside but mainly frost-free. Minimum temperature 6 °C.

    Sunday:

    A day of sunny spells and scattered showers, with some heavier showers possible. Cloud building later with some wet and windy weather arriving by evening. Maximum temperature 16 °C.

    Outlook for Monday to Wednesday:

    Rain clearing on Tuesday to a mix of sunshine and blustery showers. Further showers possible on Wednesday, then turning drier, brighter and warmer on Thursday.

    Updated:

    UK long range weather forecast

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