Nefyn (Gwynedd) weather

Forecast days

Heavy rain changing to sunny intervals in the afternoon.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.

    7 day forecast for Nefyn

    Today (19 October 2025)
    Time
    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 Heavy rain Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Light shower night
    Chance of precipitation
    90%
    90%
    90%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    ≥95%
    90%
    60%
    30%
    10%
    10%
    20%
    20%
    30%
    30%
    40%
    40%
    50%
    Temperature
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    13°
    13°
    13°
    13°
    12°
    13°
    Feels like temperature (°C)
    10°
    10°
    11°
    11°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    Wind direction and speed
    SE
    22
    SE
    22
    SE
    22
    SE
    22
    SE
    23
    SE
    23
    SE
    23
    SE
    23
    SE
    23
    SSE
    23
    SSE
    21
    S
    18
    SSW
    16
    SSW
    14
    SSW
    13
    SSW
    11
    S
    11
    S
    10
    S
    10
    S
    11
    SSE
    12
    SSE
    13
    Wind gust (mph)
    39
    41
    41
    41
    41
    41
    42
    41
    41
    39
    34
    30
    26
    25
    24
    23
    23
    23
    25
    25
    26
    27
    Visibility
    G
    M
    VG
    G
    M
    M
    M
    M
    M
    M
    M
    M
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    90%
    88%
    86%
    85%
    90%
    92%
    92%
    92%
    93%
    94%
    96%
    93%
    90%
    84%
    83%
    85%
    88%
    88%
    89%
    90%
    91%
    92%
    UV - - - - - 1 1 1 1 1 1 1 1 1 1 1 1 - - - - -
    Monday (20 October 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 shower night Light shower night Light shower night Heavy rain Heavy rain Heavy rain Heavy shower night Heavy shower night Heavy shower day Heavy shower day Heavy shower day Heavy shower day Light shower day Heavy shower day Heavy shower day Light shower day Light shower day Sunny intervals Partly cloudy night Light shower night Light shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    60%
    70%
    80%
    90%
    90%
    90%
    ≥95%
    90%
    90%
    90%
    90%
    80%
    70%
    80%
    70%
    70%
    50%
    40%
    40%
    50%
    60%
    60%
    60%
    60%
    Temperature (°C)
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    13°
    13°
    13°
    12°
    12°
    12°
    12°
    12°
    12°
    Feels like temperature (°C)
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    12°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    Wind direction and speed (mph)
    SSE
    14
    SSE
    15
    SSE
    16
    SSE
    16
    SSE
    16
    SSE
    17
    SSE
    16
    SE
    16
    SSE
    16
    SE
    15
    SE
    15
    SE
    14
    SE
    12
    SE
    10
    ENE
    8
    NW
    9
    NW
    11
    NW
    12
    WNW
    13
    WNW
    13
    WNW
    14
    WNW
    14
    WNW
    14
    WNW
    15
    Wind gust (mph)
    30
    30
    31
    32
    32
    32
    30
    31
    29
    27
    25
    21
    17
    12
    11
    14
    15
    17
    18
    21
    21
    23
    23
    24
    Visibility (description)
    VG
    E
    E
    E
    E
    E
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    92%
    92%
    92%
    91%
    92%
    93%
    93%
    93%
    92%
    91%
    91%
    90%
    89%
    88%
    87%
    87%
    88%
    88%
    88%
    89%
    88%
    90%
    90%
    89%
    UV - - - - - - - 1 1 1 1 2 2 2 1 1 1 1 1 - - - - -
    Tuesday (21 October 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 shower night Partly cloudy night Cloudy Overcast Light shower night Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Cloudy Overcast Light shower day Light shower day Light shower day Light shower day Light shower day Partly cloudy night Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    60%
    40%
    30%
    50%
    50%
    50%
    40%
    40%
    50%
    60%
    50%
    40%
    40%
    50%
    60%
    70%
    60%
    50%
    50%
    50%
    50%
    50%
    40%
    20%
    Temperature (°C)
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    15
    W
    15
    W
    14
    W
    13
    W
    12
    W
    12
    W
    11
    W
    11
    W
    11
    W
    11
    W
    13
    W
    15
    W
    16
    W
    16
    W
    16
    W
    16
    WNW
    16
    W
    16
    W
    16
    W
    15
    WNW
    15
    WNW
    16
    WNW
    15
    WNW
    14
    Wind gust (mph)
    25
    26
    26
    25
    24
    23
    22
    22
    22
    24
    25
    24
    24
    25
    27
    28
    28
    28
    28
    28
    27
    25
    24
    21
    Visibility (description)
    VG
    VG
    E
    E
    E
    VG
    E
    E
    E
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    89%
    88%
    87%
    88%
    88%
    90%
    89%
    89%
    89%
    91%
    89%
    86%
    85%
    84%
    84%
    84%
    82%
    82%
    79%
    79%
    79%
    79%
    78%
    80%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 1 1 - - - - -
    Wednesday (22 October 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 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 Cloudy Cloudy Light rain Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light shower night
    Chance of precipitation
    20%
    20%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    30%
    30%
    40%
    40%
    40%
    50%
    60%
    60%
    70%
    70%
    70%
    70%
    70%
    70%
    60%
    Temperature (°C)
    10°
    10°
    10°
    11°
    11°
    12°
    12°
    12°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    10°
    10°
    Wind direction and speed (mph)
    WNW
    13
    W
    11
    W
    10
    W
    9
    WSW
    8
    WSW
    7
    SW
    6
    SSW
    6
    S
    6
    SSE
    6
    SSE
    7
    SSE
    9
    SSE
    10
    SSE
    10
    SSE
    10
    SSE
    11
    SSE
    11
    SE
    11
    SE
    12
    SE
    13
    SE
    14
    SE
    15
    ESE
    15
    ESE
    16
    Wind gust (mph)
    20
    19
    18
    16
    15
    14
    13
    11
    12
    11
    12
    12
    12
    13
    12
    13
    15
    16
    17
    16
    19
    21
    23
    21
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    G
    G
    G
    G
    VG
    Humidity
    80%
    81%
    81%
    81%
    83%
    84%
    84%
    85%
    86%
    85%
    80%
    76%
    75%
    74%
    76%
    78%
    80%
    86%
    90%
    91%
    87%
    88%
    88%
    88%
    UV - - - - - - - 1 1 1 1 1 2 2 1 1 1 1 1 - - - - -
    Thursday (23 October 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 shower night Cloudy Cloudy Light shower night Light shower night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light shower day Light shower day Light shower day Light shower day Light shower day Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night
    Chance of precipitation
    50%
    50%
    50%
    60%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    50%
    50%
    60%
    70%
    70%
    60%
    60%
    60%
    60%
    60%
    60%
    50%
    Temperature (°C)
    10°
    10°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SSE
    17
    WSW
    19
    W
    20
    W
    19
    W
    19
    W
    18
    WNW
    18
    W
    17
    WNW
    17
    NW
    18
    WNW
    18
    WNW
    19
    WNW
    20
    WNW
    21
    WNW
    21
    WNW
    21
    WNW
    21
    WNW
    21
    WNW
    21
    WNW
    20
    WNW
    20
    WNW
    20
    WNW
    20
    WNW
    20
    Wind gust (mph)
    23
    23
    22
    22
    22
    20
    20
    19
    20
    20
    19
    21
    25
    26
    26
    28
    30
    33
    33
    37
    37
    35
    34
    34
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    Humidity
    87%
    85%
    83%
    82%
    82%
    82%
    82%
    82%
    81%
    81%
    79%
    77%
    77%
    75%
    77%
    77%
    79%
    80%
    80%
    80%
    80%
    82%
    83%
    85%
    UV - - - - - - - 1 1 1 1 1 2 2 1 1 1 1 1 - - - - -
    Friday (24 October 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Light shower night Light shower night Light shower night Light shower day Light shower day Light shower day Light shower day Overcast Overcast
    Chance of precipitation
    50%
    50%
    60%
    60%
    60%
    50%
    50%
    40%
    40%
    Temperature (°C)
    10°
    11°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    20
    NW
    19
    NW
    18
    NW
    17
    NNW
    16
    NNW
    17
    N
    18
    N
    15
    N
    14
    Wind gust (mph)
    21
    21
    21
    24
    24
    23
    21
    21
    Visibility (description)
    VG
    VG
    G
    G
    G
    VG
    G
    VG
    VG
    Humidity
    85%
    83%
    84%
    85%
    82%
    80%
    77%
    79%
    79%
    UV - - - - 1 2 1 - -
    Saturday (25 October 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Overcast Drizzle Overcast Light shower day Light shower day Drizzle Overcast Overcast
    Chance of precipitation
    40%
    50%
    50%
    50%
    50%
    50%
    40%
    40%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    N
    13
    NNW
    13
    NNW
    13
    NNW
    14
    NNW
    15
    NW
    15
    NNW
    12
    NW
    9
    Wind gust (mph)
    18
    21
    21
    24
    23
    19
    14
    14
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    79%
    79%
    80%
    75%
    74%
    72%
    81%
    80%
    UV - - - 1 1 1 - -

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    Wales weather forecast

    Headline:

    Wet and windy, but turning drier later.

    This Evening and Tonight:

    South-easterly winds freshening this evening with showery outbreaks of rain moving eastwards. Turning increasingly wet and windy overnight with some heavy and persistent rain by dawn. Coastal gales possible at times. Mild. Minimum temperature 10 °C.

    Sunday:

    A wet and windy morning with the heaviest rain easing by early afternoon. Turning brighter from the west, though quickly followed by showers, which may turn heavy. Winds easing. Maximum temperature 16 °C.

    Outlook for Monday to Wednesday:

    Windy on Monday with heavy and blustery showers and sunny spells. Fewer showers on Tuesday but staying changeable on Wednesday with further wet and windy weather possible. Temperatures around average.

    Updated:

    UK long range weather forecast

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