Holyhead Bay (Isle of Anglesey) weather

Forecast days

Partly cloudy changing to light rain by late morning.
Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.
Next low tide: for
Porth Trwyn (Beach)

    7 day forecast for Holyhead Bay

    Today (21 January 2026)
    Time
    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 Cloudy Overcast Light rain Light rain Light rain Light rain Light rain Light shower night Overcast Light rain Light rain Light rain Light shower night Partly cloudy night Partly cloudy night
    Chance of precipitation
    10%
    30%
    30%
    <5%
    <5%
    <5%
    10%
    50%
    80%
    80%
    60%
    80%
    80%
    50%
    50%
    70%
    70%
    70%
    50%
    30%
    20%
    Temperature
    7°
    6°
    6°
    6°
    5°
    5°
    5°
    6°
    6°
    7°
    8°
    9°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    2°
    2°
    2°
    1°
    0°
    0°
    0°
    1°
    1°
    2°
    3°
    5°
    6°
    7°
    7°
    7°
    6°
    6°
    6°
    6°
    6°
    Wind direction and speed
    SSE
    20
    SSE
    20
    SSE
    19
    SE
    19
    SE
    19
    ESE
    19
    ESE
    19
    E
    21
    E
    24
    E
    25
    E
    25
    ESE
    22
    ESE
    20
    ESE
    19
    ESE
    18
    ESE
    18
    ESE
    18
    SE
    18
    SE
    18
    SE
    18
    SE
    17
    Wind gust (mph)
    30
    30
    30
    29
    30
    32
    36
    37
    40
    43
    40
    36
    33
    31
    32
    32
    32
    30
    29
    30
    31
    Visibility
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    VG
    G
    VG
    VG
    VG
    VG
    E
    E
    VG
    E
    E
    E
    E
    Humidity
    88%
    87%
    85%
    85%
    84%
    82%
    84%
    84%
    85%
    88%
    86%
    86%
    87%
    87%
    86%
    86%
    87%
    86%
    87%
    86%
    85%
    UV - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Thursday (22 January 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 Cloudy Cloudy Cloudy Light shower night Light shower day Light shower day Light shower day Light shower day Light rain Light shower day Light rain Light rain Light rain Light rain Light shower night Light shower night Partly cloudy night Partly cloudy night Partly cloudy night Clear night
    Chance of precipitation
    20%
    20%
    10%
    10%
    20%
    20%
    30%
    50%
    50%
    50%
    50%
    50%
    50%
    60%
    70%
    80%
    70%
    60%
    60%
    60%
    40%
    40%
    30%
    10%
    Temperature (°C)
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    9°
    8°
    8°
    8°
    8°
    8°
    8°
    7°
    Feels like temperature (°C)
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    5°
    5°
    5°
    5°
    5°
    4°
    4°
    Wind direction and speed (mph)
    SE
    17
    SE
    17
    SE
    17
    SE
    16
    ESE
    15
    ESE
    14
    ESE
    13
    ESE
    13
    ESE
    13
    ESE
    14
    ESE
    14
    ESE
    15
    ESE
    15
    ESE
    15
    SE
    15
    SE
    15
    SE
    15
    SSE
    15
    SSE
    14
    S
    13
    SSE
    14
    SSE
    14
    SE
    14
    SE
    14
    Wind gust (mph)
    30
    30
    30
    29
    27
    27
    27
    26
    27
    26
    26
    26
    25
    24
    24
    24
    23
    24
    22
    20
    20
    20
    21
    23
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    86%
    87%
    87%
    87%
    86%
    86%
    87%
    87%
    88%
    88%
    88%
    89%
    87%
    86%
    86%
    87%
    86%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Friday (23 January 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 Clear night Clear night Clear night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Light rain Cloudy Cloudy Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Clear night Clear night Clear night Clear night Clear night
    Chance of precipitation
    <5%
    <5%
    <5%
    10%
    10%
    20%
    10%
    20%
    30%
    30%
    40%
    50%
    50%
    40%
    40%
    30%
    20%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    7°
    6°
    6°
    6°
    6°
    7°
    7°
    7°
    7°
    7°
    8°
    8°
    8°
    8°
    8°
    8°
    8°
    7°
    7°
    7°
    7°
    6°
    6°
    6°
    Feels like temperature (°C)
    3°
    3°
    2°
    2°
    2°
    2°
    2°
    2°
    3°
    3°
    3°
    3°
    4°
    4°
    4°
    4°
    4°
    4°
    3°
    3°
    3°
    2°
    2°
    2°
    Wind direction and speed (mph)
    SE
    14
    ESE
    14
    ESE
    15
    ESE
    17
    ESE
    18
    E
    20
    E
    21
    E
    22
    E
    22
    ESE
    22
    ESE
    22
    ESE
    21
    ESE
    20
    ESE
    19
    ESE
    19
    ESE
    18
    ESE
    17
    E
    16
    E
    16
    E
    16
    E
    16
    E
    17
    E
    17
    E
    17
    Wind gust (mph)
    25
    27
    28
    30
    34
    36
    39
    39
    40
    39
    39
    37
    33
    31
    31
    28
    26
    26
    25
    24
    24
    24
    24
    25
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    86%
    85%
    85%
    84%
    83%
    83%
    84%
    83%
    84%
    83%
    84%
    84%
    83%
    83%
    82%
    84%
    84%
    84%
    83%
    84%
    84%
    84%
    84%
    84%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Saturday (24 January 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 Clear night Clear night Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    20%
    20%
    10%
    10%
    10%
    20%
    10%
    10%
    10%
    10%
    10%
    Temperature (°C)
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    6°
    7°
    7°
    8°
    8°
    8°
    8°
    8°
    7°
    7°
    6°
    7°
    6°
    6°
    6°
    Feels like temperature (°C)
    2°
    2°
    2°
    2°
    1°
    1°
    1°
    1°
    1°
    1°
    2°
    3°
    4°
    4°
    4°
    4°
    4°
    3°
    2°
    2°
    2°
    2°
    1°
    1°
    Wind direction and speed (mph)
    E
    17
    E
    16
    E
    17
    E
    17
    E
    17
    E
    18
    E
    18
    E
    19
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    20
    E
    21
    E
    21
    E
    21
    E
    21
    E
    21
    E
    20
    Wind gust (mph)
    25
    26
    25
    24
    24
    24
    26
    27
    28
    29
    28
    27
    26
    26
    26
    27
    28
    28
    30
    30
    30
    29
    29
    27
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    Humidity
    84%
    84%
    84%
    84%
    84%
    85%
    85%
    85%
    85%
    86%
    86%
    84%
    82%
    79%
    79%
    80%
    82%
    83%
    84%
    84%
    84%
    84%
    85%
    84%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Sunday (25 January 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 Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    6°
    6°
    6°
    6°
    6°
    5°
    5°
    5°
    5°
    5°
    5°
    6°
    6°
    6°
    7°
    7°
    6°
    6°
    5°
    5°
    5°
    4°
    4°
    4°
    Feels like temperature (°C)
    1°
    1°
    1°
    1°
    1°
    1°
    0°
    0°
    0°
    0°
    1°
    1°
    2°
    2°
    2°
    2°
    2°
    1°
    1°
    0°
    0°
    0°
    0°
    0°
    Wind direction and speed (mph)
    E
    19
    E
    19
    E
    19
    E
    18
    E
    18
    E
    18
    E
    19
    E
    20
    E
    20
    E
    19
    E
    19
    E
    19
    E
    19
    E
    19
    E
    19
    E
    18
    E
    17
    E
    17
    E
    16
    E
    16
    E
    16
    E
    15
    ESE
    15
    ESE
    14
    Wind gust (mph)
    28
    29
    28
    28
    28
    28
    28
    30
    30
    30
    30
    30
    28
    26
    25
    24
    24
    24
    24
    24
    23
    23
    23
    23
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    85%
    84%
    84%
    84%
    84%
    84%
    85%
    85%
    84%
    84%
    84%
    83%
    80%
    79%
    78%
    78%
    79%
    79%
    79%
    79%
    79%
    80%
    82%
    82%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 - - - - - - -
    Monday (26 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain
    Chance of precipitation
    <5%
    <5%
    10%
    10%
    20%
    40%
    60%
    60%
    Temperature (°C)
    4°
    4°
    3°
    4°
    5°
    6°
    5°
    5°
    Feels like temperature (°C)
    -1°
    -1°
    -2°
    -2°
    0°
    0°
    -1°
    -1°
    Wind direction and speed (mph)
    ESE
    15
    ESE
    15
    SE
    17
    SE
    18
    SE
    21
    SE
    22
    SE
    23
    SE
    24
    Wind gust (mph)
    19
    23
    26
    29
    32
    34
    35
    33
    Visibility (description)
    G
    G
    VG
    G
    G
    G
    G
    G
    Humidity
    82%
    83%
    83%
    83%
    79%
    78%
    83%
    85%
    UV - - - 1 1 1 - -
    Tuesday (27 January 2026)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Light rain Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night
    Chance of precipitation
    60%
    50%
    40%
    40%
    30%
    30%
    30%
    30%
    Temperature (°C)
    5°
    4°
    4°
    4°
    6°
    7°
    5°
    5°
    Feels like temperature (°C)
    -1°
    -1°
    -1°
    0°
    2°
    3°
    0°
    0°
    Wind direction and speed (mph)
    SE
    22
    SSE
    21
    SSE
    19
    SSE
    17
    SSE
    16
    S
    15
    SSE
    14
    SSE
    14
    Wind gust (mph)
    29
    24
    21
    20
    18
    17
    16
    15
    Visibility (description)
    G
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    85%
    87%
    86%
    85%
    83%
    83%
    85%
    86%
    UV - - - 1 1 1 - -

    UK video forecast

    Holyhead Bay weather map

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    Forecast for 3am Wednesday
    Updated 01:00 (UTC) on Wed 21 Jan 2026
    WARNING
    Flood alerts icon
    Flood alerts in force for Wales
    Flood alerts in force for Wales

    Natural Resources Wales

    Updated:

    Wales weather forecast

    Headline:

    Relatively mild but staying unsettled and often wet and windy.

    This Evening and Tonight:

    Wind and rain clearing away to the east this evening, leaving drier and somewhat less windy weather overnight with isolated showers developing in the west. Turning fairly chilly in places but staying largely frost-free. Winds freshening again by the morning. Minimum temperature 3 °C.

    Wednesday:

    A mainly dry start but wet and windy weather soon pushing northwards, with periods of heavy rain. Remaining generally wet through the afternoon. Feeling unpleasant in the blustery easterly winds. Maximum temperature 9 °C.

    Outlook for Thursday to Saturday:

    Further periods of wet and windy weather on Thursday and Friday with brisk easterly winds at times. Perhaps drier by Saturday. Temperatures close to average with the frost risk increasing.

    Updated:

    UK long range weather forecast

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