Prestatyn Gronant Dunes (Beach) (Flintshire) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.



Forecast days

Clear.
Beach safety today
Use caution in the sea. Waves can be bigger or stronger than you expect, strong rips likely, strong wind may blow you off course
  • • unsafe for novice surfers
  • • paddle boarding/kayaking not recommended at any level

Tide: Next low tide (2.0m) at

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

    7 day forecast for Prestatyn Gronant Dunes (Beach)

    Today (18 December 2025)
    Time
    23:00
    Weather symbols Clear night
    Chance of precipitation
    <5%
    Temperature
    Feels like temperature (°C)
    Wind direction and speed
    SW
    13
    Wind gust (mph)
    29
    Visibility
    E
    Humidity
    83%
    UV -
    Wind direction and speed
    13
    Height of waves offshore (m)
    0.8
    Period of waves offshore (s)
    5
    Direction of waves offshore
    Friday (19 December 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 Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Clear night Clear night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    <5%
    <5%
    20%
    30%
    30%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    20%
    30%
    40%
    30%
    30%
    20%
    Temperature (°C)
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    13
    SW
    13
    SW
    14
    SW
    15
    SW
    16
    SW
    16
    SW
    16
    SW
    16
    SW
    15
    SW
    14
    SW
    15
    SW
    16
    WSW
    16
    WSW
    15
    WSW
    14
    SW
    13
    SW
    12
    SW
    11
    SSW
    10
    SSW
    10
    SSW
    9
    SSW
    9
    SSW
    9
    S
    10
    Wind gust (mph)
    31
    34
    36
    37
    38
    37
    36
    34
    34
    32
    33
    34
    33
    31
    28
    25
    22
    21
    20
    20
    20
    20
    19
    20
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    79%
    76%
    76%
    77%
    79%
    83%
    83%
    83%
    83%
    83%
    80%
    77%
    76%
    75%
    75%
    76%
    79%
    83%
    84%
    84%
    85%
    85%
    85%
    85%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    13
    13
    14
    15
    16
    17
    16
    16
    16
    15
    15
    16
    16
    16
    15
    13
    12
    11
    10
    10
    9
    9
    9
    10
    Height of waves offshore (m)
    0.9
    0.9
    0.9
    1.0
    1.0
    1.1
    1.1
    1.0
    1.0
    1.0
    0.9
    0.9
    0.9
    0.9
    0.8
    0.8
    0.8
    0.8
    0.7
    0.7
    0.6
    0.6
    0.5
    0.5
    Period of waves offshore (s)
    5
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    5
    5
    Direction of waves offshore
    Saturday (20 December 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 Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    10%
    10%
    10%
    10%
    10%
    20%
    20%
    20%
    20%
    20%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    S
    11
    S
    11
    S
    12
    SSE
    12
    SSE
    12
    SSE
    12
    SSE
    13
    SE
    13
    SE
    13
    SE
    13
    SE
    13
    SE
    14
    SE
    14
    SE
    15
    SE
    16
    SE
    16
    SE
    16
    SE
    16
    SE
    17
    SE
    17
    SE
    17
    SE
    17
    ESE
    16
    ESE
    16
    Wind gust (mph)
    20
    21
    21
    22
    23
    23
    23
    25
    25
    25
    27
    27
    27
    27
    27
    27
    28
    27
    28
    27
    28
    28
    26
    25
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    VG
    VG
    Humidity
    85%
    85%
    85%
    85%
    85%
    85%
    85%
    86%
    86%
    87%
    85%
    83%
    78%
    77%
    78%
    80%
    84%
    85%
    85%
    86%
    86%
    87%
    87%
    88%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    11
    11
    12
    12
    12
    12
    13
    13
    13
    13
    13
    14
    14
    15
    16
    16
    16
    16
    17
    17
    17
    17
    16
    16
    Height of waves offshore (m)
    0.4
    0.4
    0.4
    0.4
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    Period of waves offshore (s)
    5
    5
    5
    5
    5
    5
    4
    4
    4
    2
    2
    2
    2
    2
    2
    2
    2
    2
    3
    3
    2
    2
    3
    3
    Direction of waves offshore
    Sunday (21 December 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 Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Overcast Light rain Light rain Light rain Light rain
    Chance of precipitation
    20%
    20%
    20%
    30%
    30%
    30%
    40%
    40%
    40%
    40%
    30%
    20%
    30%
    30%
    20%
    30%
    30%
    40%
    40%
    50%
    50%
    50%
    50%
    60%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    15
    ESE
    15
    ESE
    14
    ESE
    14
    ESE
    14
    ESE
    14
    ESE
    14
    ESE
    14
    ESE
    13
    ESE
    13
    ESE
    13
    ESE
    12
    ESE
    12
    E
    12
    E
    12
    E
    12
    E
    11
    E
    11
    E
    10
    E
    10
    E
    9
    E
    9
    E
    9
    E
    8
    Wind gust (mph)
    24
    24
    24
    24
    24
    23
    22
    22
    22
    22
    21
    21
    20
    20
    20
    19
    19
    18
    17
    15
    14
    15
    14
    12
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    88%
    90%
    91%
    91%
    92%
    92%
    92%
    92%
    92%
    93%
    92%
    91%
    89%
    90%
    90%
    91%
    92%
    92%
    93%
    94%
    95%
    95%
    95%
    95%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    15
    14
    14
    13
    13
    13
    13
    13
    13
    12
    12
    12
    12
    12
    12
    12
    11
    11
    10
    10
    9
    9
    9
    8
    Height of waves offshore (m)
    0.3
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.2
    0.1
    0.1
    0.1
    0.1
    0.1
    0.1
    0.1
    0.1
    0.1
    0.2
    0.1
    Period of waves offshore (s)
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    16
    16
    16
    16
    16
    16
    16
    16
    16
    16
    16
    3
    3
    3
    Direction of waves offshore
    Monday (22 December 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 Overcast Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Overcast Overcast Overcast Overcast Overcast Overcast Overcast
    Chance of precipitation
    50%
    40%
    30%
    40%
    30%
    30%
    30%
    30%
    20%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    8
    E
    9
    E
    9
    E
    10
    E
    10
    E
    11
    E
    11
    ESE
    11
    E
    11
    ESE
    11
    ESE
    12
    ESE
    12
    ESE
    13
    ESE
    13
    ESE
    13
    ESE
    12
    ESE
    12
    ESE
    12
    ESE
    12
    ESE
    11
    ESE
    11
    ESE
    12
    ESE
    12
    ESE
    11
    Wind gust (mph)
    13
    13
    13
    15
    16
    17
    15
    15
    15
    16
    18
    18
    18
    18
    19
    18
    15
    17
    17
    16
    15
    16
    15
    15
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    G
    M
    M
    M
    G
    G
    G
    G
    M
    M
    M
    M
    M
    M
    G
    G
    Humidity
    96%
    96%
    95%
    94%
    94%
    93%
    93%
    93%
    93%
    92%
    92%
    90%
    88%
    87%
    87%
    87%
    89%
    89%
    90%
    90%
    89%
    90%
    89%
    89%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 - - - - - - - -
    Wind direction and speed (mph)
    8
    8
    9
    9
    10
    10
    10
    10
    10
    10
    11
    12
    12
    12
    12
    12
    12
    11
    11
    11
    11
    11
    11
    11
    Height of waves offshore (m)
    0.1
    0.1
    0.2
    0.2
    0.2
    0.2
    0.2
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.3
    0.2
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    3
    2
    2
    2
    Direction of waves offshore
    Tuesday (23 December 2025)
    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 Overcast Overcast
    Chance of precipitation
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    ESE
    10
    ESE
    10
    E
    10
    E
    10
    E
    12
    E
    12
    E
    12
    E
    11
    Wind gust (mph)
    14
    13
    12
    12
    13
    13
    12
    12
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    90%
    90%
    91%
    91%
    86%
    85%
    86%
    88%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    10
    9
    9
    10
    11
    12
    11
    11
    Height of waves offshore (m)
    0.2
    0.3
    0.2
    0.2
    0.3
    0.2
    0.2
    0.3
    Period of waves offshore (s)
    2
    3
    3
    3
    3
    3
    3
    3
    Direction of waves offshore
    Wednesday (24 December 2025)
    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 Overcast Overcast
    Chance of precipitation
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature (°C)
    Feels like temperature (°C)
    Wind direction and speed (mph)
    E
    11
    ENE
    11
    ENE
    11
    ENE
    11
    ENE
    12
    ENE
    12
    ENE
    11
    E
    11
    Wind gust (mph)
    12
    13
    14
    15
    15
    15
    14
    14
    Visibility (description)
    G
    G
    G
    G
    G
    G
    G
    G
    Humidity
    89%
    89%
    88%
    87%
    82%
    82%
    84%
    85%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    11
    Height of waves offshore (m)
    0.4
    Period of waves offshore (s)
    4
    Direction of waves offshore

    Tide times

    Thursday 18 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 18 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 19 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 20 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 21 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 22 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 23 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 24 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 24 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 24 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 24 December

    Tide times and heights are from Mostyn Docks tidal station which is 4.3 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Prestatyn Gronant Dunes (Beach) weather map

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    WARNING
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    Flood warnings in force for Wales
    Flood warnings in force for Wales

    Wales weather forecast

    Headline:

    Sunny spells and a chance of showers on Friday.

    This Evening and Tonight:

    Slightly drier for some at first but another band of rain or showers will quickly spread eastwards this evening, with occasional heavy bursts. Clearer skies following overnight with scattered showers. Turning colder than last night but staying generally frost free. Minimum temperature 4 °C.

    Friday:

    Friday brings a mixture of sunshine and scattered showers, these locally heavy. Fewer showers by the afternoon. Quite mild again but feeling cooler in the breeze, although winds easing later. Maximum temperature 11 °C.

    Outlook for Saturday to Monday:

    After a mostly fine start, turning wet and windy in the west later on Saturday. Winds easing thereafter but often cloudy on Sunday and Monday with occasional rain or drizzle.

    Updated:

    UK long range weather forecast

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