Porth Tywyn Mawr (Sandy Beach) (Isle of Anglesey) 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.



    Today
    Time
    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
    Cloudy
    Cloudy
    Cloudy
    Overcast
    Cloudy
    Cloudy
    Cloudy
    Sunny intervals
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Clear night
    Clear night
    Chance of precipitation
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    Temperature
    14°
    58°
    14°
    57°
    14°
    57°
    14°
    57°
    14°
    57°
    14°
    57°
    14°
    58°
    15°
    58°
    15°
    59°
    15°
    59°
    15°
    59°
    16°
    60°
    16°
    60°
    16°
    60°
    16°
    60°
    15°
    60°
    15°
    59°
    14°
    58°
    13°
    55°
    13°
    56°
    Feels like temperature (°C)
    12°
    54°
    12°
    54°
    12°
    54°
    12°
    54°
    13°
    55°
    13°
    55°
    14°
    56°
    14°
    57°
    14°
    58°
    14°
    58°
    14°
    58°
    15°
    58°
    14°
    58°
    15°
    58°
    15°
    59°
    15°
    59°
    14°
    58°
    14°
    57°
    13°
    55°
    13°
    55°
    Wind direction and speed
    WSW
    12
    20
    10
    5
    3
    NW
    11
    17
    10
    5
    3
    NNW
    10
    15
    9
    4
    3
    NNW
    9
    15
    8
    4
    3
    NNW
    7
    11
    6
    3
    2
    NNW
    7
    12
    6
    3
    2
    NNW
    6
    9
    5
    3
    2
    NNW
    6
    10
    5
    3
    2
    NW
    6
    9
    5
    3
    2
    NW
    7
    11
    6
    3
    2
    NW
    7
    11
    6
    3
    2
    NW
    7
    11
    6
    3
    2
    WNW
    8
    12
    7
    3
    3
    WNW
    7
    11
    6
    3
    2
    WNW
    5
    9
    4
    2
    2
    WNW
    5
    7
    4
    2
    2
    WNW
    4
    7
    3
    2
    2
    WSW
    4
    6
    3
    2
    2
    SW
    4
    6
    3
    2
    2
    SSW
    4
    6
    3
    2
    2
    Wind gust (mph)
    17
    28
    15
    8
    4
    17
    28
    15
    8
    4
    14
    23
    12
    6
    4
    12
    19
    10
    5
    3
    9
    15
    8
    4
    3
    9
    15
    8
    4
    3
    7
    11
    6
    3
    2
    8
    12
    7
    3
    3
    7
    12
    6
    3
    2
    10
    15
    9
    4
    3
    10
    16
    9
    4
    3
    10
    16
    9
    4
    3
    11
    18
    10
    5
    3
    10
    16
    9
    5
    3
    9
    14
    8
    4
    3
    7
    11
    6
    3
    2
    6
    10
    5
    3
    2
    6
    10
    5
    3
    2
    6
    10
    5
    3
    2
    7
    12
    6
    3
    2
    Visibility
    M
    5
    G
    14
    VG
    23
    VG
    22
    VG
    20
    VG
    22
    VG
    25
    VG
    26
    VG
    28
    VG
    30
    VG
    30
    VG
    30
    VG
    30
    VG
    35
    VG
    35
    VG
    30
    VG
    30
    VG
    27
    VG
    23
    VG
    23
    Humidity
    95%
    91%
    88%
    89%
    89%
    88%
    84%
    82%
    78%
    75%
    75%
    73%
    73%
    72%
    73%
    73%
    77%
    83%
    90%
    90%
    UV
    -
    1
    1
    1
    2
    3
    4
    5
    6
    7
    6
    5
    5
    4
    2
    1
    1
    1
    -
    -
    Wind direction and speed
    Height of waves offshore (m)
    0.4
    0.4
    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
    0.2
    0.2
    0.2
    0.2
    Period of waves offshore (s)
    5
    5
    4
    4
    5
    6
    4
    4
    4
    4
    4
    4
    5
    6
    6
    6
    6
    7
    7
    7
    Direction of waves offshore
    Monday
    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
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny intervals
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny intervals
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Clear night
    Clear night
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    <5%
    13°
    56°
    13°
    56°
    13°
    56°
    13°
    56°
    13°
    56°
    13°
    56°
    14°
    57°
    15°
    59°
    15°
    60°
    16°
    61°
    17°
    62°
    17°
    63°
    17°
    63°
    17°
    63°
    17°
    63°
    17°
    63°
    17°
    63°
    17°
    62°
    17°
    62°
    16°
    62°
    16°
    61°
    15°
    60°
    15°
    59°
    15°
    58°
    13°
    55°
    13°
    55°
    12°
    54°
    12°
    54°
    12°
    54°
    12°
    54°
    13°
    55°
    14°
    56°
    14°
    57°
    15°
    58°
    15°
    60°
    16°
    60°
    16°
    60°
    16°
    60°
    16°
    60°
    16°
    61°
    16°
    61°
    15°
    60°
    15°
    59°
    15°
    59°
    15°
    58°
    14°
    57°
    14°
    56°
    13°
    56°
    S
    5
    7
    4
    2
    2
    SSW
    5
    8
    4
    2
    2
    S
    6
    9
    5
    3
    2
    S
    6
    10
    5
    3
    2
    S
    7
    11
    6
    3
    2
    S
    7
    12
    6
    3
    2
    S
    8
    12
    7
    3
    3
    S
    8
    13
    7
    4
    3
    S
    9
    15
    8
    4
    3
    S
    10
    16
    9
    4
    3
    SSW
    9
    15
    8
    4
    3
    SSW
    9
    15
    8
    4
    3
    SSW
    10
    16
    9
    4
    3
    SW
    10
    16
    9
    4
    3
    SW
    10
    16
    9
    4
    3
    SW
    9
    15
    8
    4
    3
    SW
    9
    14
    8
    4
    3
    SSW
    10
    16
    9
    4
    3
    SSW
    10
    15
    9
    4
    3
    SSW
    10
    15
    9
    4
    3
    SSW
    9
    15
    8
    4
    3
    S
    9
    15
    8
    4
    3
    S
    9
    14
    8
    4
    3
    S
    9
    14
    8
    4
    3
    8
    13
    7
    4
    3
    9
    15
    8
    4
    3
    9
    14
    8
    4
    3
    10
    17
    9
    5
    3
    11
    18
    10
    5
    3
    12
    19
    10
    5
    3
    13
    21
    11
    6
    4
    14
    22
    12
    6
    4
    14
    22
    12
    6
    4
    14
    23
    12
    6
    4
    14
    23
    12
    6
    4
    14
    23
    12
    6
    4
    14
    23
    12
    6
    4
    15
    24
    13
    7
    4
    15
    24
    13
    7
    4
    15
    24
    13
    7
    4
    15
    23
    13
    6
    4
    15
    25
    13
    7
    4
    15
    24
    13
    7
    4
    15
    24
    13
    7
    4
    14
    23
    12
    6
    4
    14
    22
    12
    6
    4
    14
    23
    12
    6
    4
    14
    23
    12
    6
    4
    VG
    22
    VG
    22
    VG
    20
    G
    19
    G
    19
    G
    18
    VG
    20
    VG
    23
    VG
    25
    VG
    22
    VG
    21
    VG
    21
    G
    19
    G
    19
    G
    19
    VG
    27
    VG
    28
    VG
    28
    VG
    29
    VG
    29
    VG
    28
    VG
    25
    VG
    24
    VG
    24
    90%
    90%
    92%
    92%
    93%
    93%
    91%
    87%
    83%
    80%
    78%
    77%
    76%
    77%
    76%
    75%
    75%
    77%
    78%
    80%
    82%
    86%
    89%
    90%
    -
    -
    -
    -
    -
    1
    1
    1
    2
    3
    4
    5
    6
    7
    6
    6
    5
    4
    3
    1
    1
    1
    -
    -
    0.1
    0.1
    0.1
    0.1
    0.2
    0.2
    0.2
    0.2
    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
    7
    7
    7
    7
    7
    6
    4
    4
    4
    4
    4
    4
    4
    2
    2
    3
    3
    3
    3
    3
    4
    4
    4
    5
    Tuesday
    Time
    00:00
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols
    Clear night
    Clear night
    Cloudy
    Sunny intervals
    Cloudy
    Cloudy
    Cloudy
    Sunny intervals
    Clear night
    <5%
    <5%
    10%
    <5%
    10%
    10%
    10%
    <5%
    <5%
    14°
    58°
    14°
    58°
    14°
    58°
    15°
    59°
    17°
    62°
    18°
    65°
    18°
    65°
    18°
    64°
    15°
    59°
    13°
    56°
    13°
    56°
    13°
    56°
    15°
    59°
    17°
    62°
    18°
    64°
    18°
    64°
    17°
    63°
    14°
    57°
    S
    9
    14
    8
    4
    3
    S
    9
    14
    8
    4
    3
    S
    7
    12
    6
    3
    2
    S
    6
    10
    5
    3
    2
    SSW
    6
    9
    5
    2
    2
    W
    7
    11
    6
    3
    2
    NW
    7
    11
    6
    3
    2
    NNW
    7
    11
    6
    3
    2
    N
    8
    13
    7
    4
    3
    14
    23
    12
    6
    4
    14
    22
    12
    6
    4
    12
    19
    10
    5
    3
    10
    16
    9
    4
    3
    11
    18
    10
    5
    3
    14
    22
    12
    6
    4
    13
    21
    11
    6
    4
    12
    20
    10
    6
    3
    12
    19
    10
    5
    3
    VG
    21
    G
    19
    G
    17
    VG
    20
    VG
    23
    VG
    22
    G
    10
    VG
    23
    VG
    20
    92%
    93%
    94%
    91%
    84%
    79%
    79%
    80%
    90%
    -
    -
    -
    1
    4
    7
    4
    1
    -
    0.3
    0.3
    0.3
    0.2
    0.2
    0.1
    0.1
    0.4
    0.7
    5
    5
    3
    4
    3
    3
    4
    3
    4
    Wednesday
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols
    Clear night
    Cloudy
    Cloudy
    Sunny day
    Sunny day
    Sunny day
    Sunny day
    Clear night
    <5%
    10%
    10%
    <5%
    <5%
    <5%
    <5%
    <5%
    14°
    58°
    14°
    57°
    15°
    58°
    17°
    63°
    18°
    65°
    19°
    66°
    19°
    65°
    16°
    60°
    13°
    56°
    13°
    55°
    13°
    56°
    16°
    61°
    18°
    64°
    18°
    65°
    18°
    64°
    15°
    59°
    N
    8
    13
    7
    4
    3
    N
    9
    14
    8
    4
    3
    N
    9
    14
    8
    4
    3
    N
    8
    13
    7
    4
    3
    NNW
    8
    14
    7
    4
    3
    NNW
    8
    13
    7
    4
    3
    NNW
    8
    12
    7
    3
    3
    SSE
    9
    14
    8
    4
    3
    13
    20
    11
    6
    4
    14
    22
    12
    6
    4
    14
    23
    12
    6
    4
    14
    23
    12
    6
    4
    16
    26
    14
    7
    4
    16
    25
    14
    7
    4
    14
    22
    12
    6
    4
    13
    21
    11
    6
    4
    G
    13
    G
    14
    G
    19
    VG
    23
    VG
    25
    VG
    26
    VG
    27
    VG
    22
    93%
    93%
    90%
    83%
    78%
    74%
    76%
    88%
    -
    -
    1
    4
    7
    5
    1
    -
    0.9
    0.9
    0.8
    0.6
    0.5
    0.3
    0.2
    0.2
    5
    5
    5
    5
    5
    4
    4
    4
    Thursday
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols
    Clear night
    Cloudy
    Cloudy
    Cloudy
    Sunny intervals
    Sunny day
    Sunny day
    Clear night
    <5%
    10%
    10%
    10%
    10%
    10%
    10%
    10%
    15°
    59°
    15°
    59°
    16°
    60°
    17°
    63°
    18°
    65°
    18°
    65°
    17°
    63°
    16°
    60°
    14°
    57°
    13°
    56°
    14°
    58°
    16°
    61°
    16°
    61°
    17°
    62°
    16°
    60°
    14°
    58°
    SSE
    9
    15
    8
    4
    3
    S
    10
    16
    9
    4
    3
    W
    11
    17
    10
    5
    3
    WSW
    11
    18
    10
    5
    3
    WSW
    13
    20
    11
    6
    4
    WSW
    12
    19
    10
    5
    3
    WSW
    12
    19
    10
    5
    3
    W
    10
    16
    9
    5
    3
    14
    23
    12
    6
    4
    15
    24
    13
    7
    4
    17
    28
    15
    8
    4
    20
    32
    17
    9
    5
    22
    36
    19
    10
    5
    21
    34
    18
    10
    5
    20
    32
    17
    9
    5
    15
    25
    13
    7
    4
    G
    19
    G
    17
    G
    19
    VG
    20
    G
    19
    VG
    20
    VG
    22
    VG
    20
    92%
    92%
    89%
    81%
    76%
    74%
    77%
    87%
    -
    -
    1
    4
    6
    4
    1
    -
    0.5
    0.7
    0.9
    0.8
    0.5
    0.4
    0.4
    0.5
    3
    4
    5
    6
    6
    6
    5
    3
    Friday
    Time
    01:00
    04:00
    07:00
    10:00
    13:00
    16:00
    19:00
    22:00
    Weather symbols
    Partly cloudy night
    Clear night
    Cloudy
    Sunny intervals
    Sunny intervals
    Sunny day
    Sunny day
    Partly cloudy night
    10%
    10%
    10%
    <5%
    10%
    10%
    <5%
    <5%
    15°
    58°
    14°
    57°
    14°
    58°
    15°
    59°
    16°
    61°
    16°
    61°
    16°
    61°
    14°
    58°
    13°
    55°
    12°
    54°
    12°
    54°
    13°
    56°
    14°
    57°
    14°
    58°
    14°
    58°
    13°
    55°
    NW
    11
    18
    10
    5
    3
    WNW
    11
    19
    10
    5
    3
    WNW
    12
    20
    10
    6
    3
    WNW
    12
    20
    10
    6
    3
    WNW
    12
    20
    10
    6
    3
    W
    11
    18
    10
    5
    3
    W
    10
    17
    9
    5
    3
    WNW
    10
    16
    9
    4
    3
    17
    27
    15
    7
    4
    17
    27
    15
    8
    4
    19
    31
    17
    9
    5
    22
    35
    19
    10
    5
    23
    36
    20
    10
    5
    21
    34
    18
    10
    5
    18
    29
    16
    8
    4
    15
    24
    13
    7
    4
    VG
    20
    G
    19
    VG
    20
    VG
    23
    VG
    24
    VG
    25
    VG
    26
    VG
    22
    87%
    89%
    85%
    76%
    71%
    68%
    70%
    82%
    -
    -
    1
    4
    6
    4
    1
    -
    0.9
    0.9
    0.8
    0.6
    0.5
    5
    5
    5
    4
    4
    Saturday
    Time
    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 intervals
    Sunny intervals
    Sunny day
    Sunny day
    Cloudy
    <5%
    10%
    10%
    10%
    10%
    10%
    <5%
    10%
    14°
    56°
    13°
    56°
    14°
    57°
    15°
    58°
    15°
    60°
    16°
    61°
    16°
    60°
    14°
    57°
    12°
    53°
    11°
    52°
    11°
    53°
    12°
    54°
    13°
    55°
    14°
    56°
    13°
    56°
    12°
    53°
    WNW
    11
    18
    10
    5
    3
    NW
    12
    20
    10
    5
    3
    NW
    13
    21
    11
    6
    4
    NW
    13
    21
    11
    6
    4
    WNW
    13
    21
    11
    6
    4
    WNW
    13
    21
    11
    6
    4
    WNW
    12
    20
    10
    5
    3