Caernarfon (Gwynedd) weather

Forecast days

Sunny intervals changing to partly cloudy by nighttime.
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Sunset iconSunset:
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    7 day forecast for Caernarfon

    Today (16 June 2025)
    Time
    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 Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    16°
    17°
    17°
    17°
    17°
    18°
    18°
    18°
    18°
    18°
    18°
    17°
    16°
    15°
    14°
    14°
    Feels like temperature (°C)
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    14°
    14°
    13°
    12°
    12°
    Wind direction and speed
    SW
    7
    SW
    10
    SW
    11
    SW
    12
    SW
    13
    SW
    14
    SW
    16
    SW
    16
    SW
    16
    SW
    16
    SW
    15
    SW
    14
    SSW
    13
    SSW
    13
    SSW
    12
    SSW
    12
    Wind gust (mph)
    17
    19
    21
    23
    25
    27
    28
    29
    29
    28
    29
    29
    29
    29
    29
    28
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    82%
    80%
    79%
    78%
    77%
    74%
    68%
    67%
    67%
    66%
    66%
    67%
    74%
    79%
    85%
    85%
    UV 2 3 4 6 7 7 6 6 4 3 1 1 1 1 - -
    Tuesday (17 June 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 Sunny intervals Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    30%
    30%
    30%
    30%
    20%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    14°
    15°
    15°
    16°
    16°
    16°
    16°
    16°
    17°
    17°
    17°
    17°
    17°
    16°
    16°
    15°
    14°
    Feels like temperature (°C)
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    13°
    13°
    13°
    13°
    14°
    14°
    14°
    15°
    15°
    15°
    15°
    15°
    15°
    15°
    14°
    14°
    Wind direction and speed (mph)
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SSW
    13
    SW
    13
    SW
    14
    SW
    14
    SW
    13
    SW
    13
    SW
    12
    SW
    12
    SW
    11
    SW
    11
    SW
    10
    SW
    9
    SW
    8
    SW
    7
    S
    6
    S
    6
    Wind gust (mph)
    28
    27
    28
    28
    27
    27
    27
    28
    28
    27
    27
    26
    25
    25
    22
    21
    20
    19
    18
    17
    15
    14
    15
    15
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    84%
    78%
    81%
    82%
    82%
    83%
    83%
    82%
    79%
    78%
    77%
    78%
    80%
    83%
    87%
    90%
    91%
    UV - - - - 1 1 1 1 1 2 2 3 4 4 5 4 3 2 1 1 1 1 - -
    Wednesday (18 June 2025)
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    14°
    14°
    13°
    14°
    17°
    18°
    18°
    18°
    14°
    Feels like temperature (°C)
    13°
    13°
    12°
    14°
    16°
    16°
    16°
    17°
    13°
    Wind direction and speed (mph)
    S
    6
    S
    6
    S
    4
    S
    3
    SW
    7
    WSW
    8
    WSW
    9
    SW
    7
    S
    4
    Wind gust (mph)
    14
    13
    8
    10
    15
    17
    15
    9
    8
    Visibility (description)
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    VG
    Humidity
    91%
    91%
    92%
    86%
    68%
    58%
    57%
    62%
    81%
    UV - - 1 1 5 7 4 1 -
    Thursday (19 June 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    13°
    12°
    16°
    21°
    23°
    24°
    22°
    18°
    Feels like temperature (°C)
    12°
    12°
    16°
    21°
    23°
    23°
    22°
    18°
    Wind direction and speed (mph)
    S
    4
    ESE
    3
    NNE
    2
    WNW
    4
    WSW
    6
    WSW
    7
    NE
    6
    ENE
    5
    Wind gust (mph)
    7
    6
    9
    14
    14
    13
    11
    10
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    78%
    80%
    70%
    59%
    51%
    54%
    60%
    74%
    UV - 1 1 5 7 4 1 -
    Friday (20 June 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Clear night Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    18°
    17°
    19°
    22°
    23°
    23°
    22°
    17°
    Feels like temperature (°C)
    17°
    17°
    18°
    21°
    23°
    22°
    21°
    17°
    Wind direction and speed (mph)
    ESE
    6
    S
    6
    SSE
    6
    SSW
    7
    SSW
    8
    SW
    9
    SW
    7
    SSW
    5
    Wind gust (mph)
    12
    10
    10
    15
    17
    15
    10
    6
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    Humidity
    73%
    72%
    68%
    60%
    57%
    60%
    68%
    86%
    UV - 1 1 5 7 4 1 -
    Saturday (21 June 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    16°
    14°
    17°
    20°
    22°
    22°
    21°
    16°
    Feels like temperature (°C)
    16°
    14°
    17°
    20°
    21°
    21°
    20°
    17°
    Wind direction and speed (mph)
    S
    4
    SSE
    4
    SW
    4
    SSW
    6
    SW
    8
    WSW
    9
    SW
    7
    WSW
    4
    Wind gust (mph)
    6
    5
    8
    13
    15
    14
    9
    6
    Visibility (description)
    G
    G
    G
    VG
    VG
    VG
    VG
    G
    Humidity
    90%
    94%
    87%
    75%
    66%
    65%
    70%
    91%
    UV - 1 1 5 7 4 1 -
    Sunday (22 June 2025)
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny intervals Partly cloudy night
    Chance of precipitation
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    10%
    Temperature (°C)
    15°
    14°
    16°
    19°
    20°
    21°
    19°
    15°
    Feels like temperature (°C)
    15°
    14°
    16°
    18°
    19°
    19°
    18°
    15°
    Wind direction and speed (mph)
    SW
    4
    SSW
    5
    NW
    5
    W
    8
    WSW
    10
    WSW
    10
    SW
    9
    SSW
    6
    Wind gust (mph)
    5
    5
    9
    13
    15
    15
    10
    5
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    VG
    G
    Humidity
    94%
    95%
    89%
    80%
    71%
    70%
    70%
    91%
    UV - 1 1 4 7 4 1 -

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    Wales weather forecast

    Headline:

    Cloud lifting to give plenty of afternoon sunshine.

    Today:

    Rather cloudy at first with some mist and hill fog, though this lifting and clearing to give a fine day across the country with plenty of sunny spells developing into the afternoon. Feeling warm in the sunshine, with light winds. Maximum temperature 21 °C.

    Tonight:

    Dry with plenty of late evening sunshine. Clear spells at first overnight, before turning increasingly cloudy from the west into the early hours. Light winds, and rather mild. Minimum temperature 13 °C.

    Tuesday:

    A grey and murky start. Warm spells of sunshine developing across the south and east for a while, though cloud thickening enough further north and west to give patchy rain. Maximum temperature 20 °C.

    Outlook for Wednesday to Friday:

    Increasingly settled this week as high pressure builds from the southwest. Light winds and lengthy spells of warm sunshine with temperatures on the rise. A few showers possible on Friday.

    Updated:

    UK long range weather forecast

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