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Traeth Tywyn Mawr Beach Weather and Tides

Isle of Anglesey, Wales

Latest Observations

11:00 Tue 15 Sep

15°C

10mph

Sea Temperature

0°C

Latest weather observations are for the nearest observation point and may not necessarily be accurate for this beach, especially when the weather is very changeable. Sea temperatures are the latest satellite surface temperature measurement for open water closest to the beach. Sea temperatures are a guideline only and can be affected by local conditions.

Tue

Min. 13°C

Wed

16°C

Thu

16°C

Fri

16°C

Sat

18°C

Sun

17°C

First light 05:34 Dawn 06:17 Sunrise 06:52 Sunset 19:34 Dusk 20:09 Nightfall 20:52 Waxing Crescent Moon

15 September 23:00
Summary
Chance of Rain 10%
Temperature 14°C
Feels like 14°C
Humidity 83%
Visibility Very Good
Pressure 1,019 mb
Wind Direction
Wind Speed 15mph
Gusting to 24mph
Beaufort Scale
4
Moderate Breeze

Weather forecast and current observations are supplied by the Met Office. Forecast is for the nearest Met Office forecast location and may not be precisely accurate for this beach. Sea surface temperatures are generated using E.U. Copernicus Marine Service Information.

Seven Day Tides

Tide graphs will work better if you rotate your fondleslab into landscape mode.

Tuesday

15 September

Tue

Low

Low

1.19m 

19:39 BST
18:39 GMT

Wednesday

16 September

Wed

High

High

5.28m 

01:53 BST
00:53 GMT

Low

Low

1.34m 

08:04 BST
07:04 GMT

High

High

5.07m 

14:11 BST
13:11 GMT

Low

Low

1.53m 

20:18 BST
19:18 GMT

Thursday

17 September

Thu

High

High

4.94m 

02:30 BST
01:30 GMT

Low

Low

1.72m 

08:41 BST
07:41 GMT

High

High

4.82m 

14:49 BST
13:49 GMT

Low

Low

1.9m 

21:01 BST
20:01 GMT

Friday

18 September

Fri

High

High

4.58m 

03:11 BST
02:11 GMT

Low

Low

2.11m 

09:26 BST
08:26 GMT

High

High

4.55m 

15:35 BST
14:35 GMT

Low

Low

2.25m 

21:56 BST
20:56 GMT

Saturday

19 September

Sat

High

High

4.24m 

04:08 BST
03:08 GMT

Low

Low

2.47m 

10:25 BST
09:25 GMT

High

High

4.32m 

16:42 BST
15:42 GMT

Low

Low

2.48m 

23:15 BST
22:15 GMT

Sunday

20 September

Sun

High

High

4.02m 

05:42 BST
04:42 GMT

Low

Low

2.67m 

11:56 BST
10:56 GMT

High

High

4.26m 

18:17 BST
17:17 GMT

Monday

21 September

Mon

Low

Low

2.44m 

00:56 BST
23:56 GMT

High

High

4.1m 

07:34 BST
06:34 GMT

Low

Low

2.55m 

13:31 BST
12:31 GMT

High

High

4.44m 

19:46 BST
18:46 GMT

Important! Tide times are for the nearest measurement point (Holyhead) and may not be accurate for this beach. 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.

Tidal predictions are © Crown Copyright and/or database rights. Reproduced by permission of the Controller of Her Majesty's Stationery Office and the UK Hydrographic Office (www.ukho.gov.uk).

Location: Llanfwrog

Location type: Rural

OS Grid: SH287851

Coordinates: 53°20'6"N 4°34'21"W

Mapcode: GBR HM2W.J59

What 3 Words: roadblock.weeks.pins

Coordinates and location codes are for an approximate mid-point of the beach, and may not reflect the best access point or the most popular part of the beach.

Country: Wales

Local Authority: Isle of Anglesey

Parish: Llanfaethlu

Nearest postcode: LL65 4YH

(for sat-nav purposes only, a beach does not have a postal address!)

Traeth Tywyn Mawr Beach weather and tides. Includes 7 day weather forecast, current weather observations, 7 day tide charts, sunrise, sunset, moon phases, air quality forecast and UV index.

British Beaches is a Good Stuff website.

216.73.217.94 Tue, 15 Sep 2026 23:47:16 +0100