"Sittin' on the dock of the bay"

Porth Tywyn Mawr (Sandy Beach) Weather and Tides

This is a long and sandy beach with sand dunes. It is good for most watersports and there is a village and campsite nearby.

Nearest town: Holyhead

Local authority: Isle of Anglesey Council

OS Grid Reference: SH287851

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Weather and Tides

Forecast for the next five days

15 December

Chance of rain 6%
Max temp. 8°C
(feels like 2°C)
Wind 8mph, gusting to 10mph.
Pressure 1005
Humidity 78%
UV Index
Air Quality

Low Tide 02:16 GMT

High Tide 08:33 GMT

Low Tide 14:36 GMT

High Tide 20:49 GMT

16 December

Chance of rain 13%
Max temp. 8°C
(feels like 4°C)
Wind 6mph, gusting to 8mph.
Pressure 1020
Humidity 86%
UV Index
Air Quality

Low Tide 02:58 GMT

High Tide 09:11 GMT

Low Tide 15:16 GMT

High Tide 21:28 GMT

17 December

Chance of rain 86%
Max temp. 11°C
(feels like 7°C)
Wind 6mph, gusting to 10mph.
Pressure 1016
Humidity 92%
UV Index
Air Quality

Low Tide 03:34 GMT

High Tide 09:46 GMT

Low Tide 15:53 GMT

High Tide 22:04 GMT

18 December

Chance of rain 10%
Max temp. 10°C
(feels like 7°C)
Wind 3mph, gusting to 4mph.
Pressure 1028
Humidity 84%
UV Index
Air Quality

Low Tide 04:08 GMT

High Tide 10:19 GMT

Low Tide 16:27 GMT

High Tide 22:38 GMT

19 December

Chance of rain 41%
Max temp. 12°C
(feels like 8°C)
Wind 5mph, gusting to 8mph.
Pressure 1031
Humidity 95%
UV Index
Air Quality

Low Tide 04:40 GMT

High Tide 10:52 GMT

Low Tide 17:00 GMT

High Tide 23:11 GMT

Important! Tide times are for the nearest measurement point and may not be accurate for this location. You should not rely on these times for anything other than a broad indication of when the tide will be at its highest or lowest.

In particular, these tide times are not suitable for navigational use. Accurate tide forecasts require complex calculations and detailed local information. If you intend to engage in any activity for which tidal information is important for safety reasons (including sailing, powerboating, diving, and surfing) then you should obtain professional data.

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