British Beaches

Visitor information for every beach in the UK

"I am sailing, stormy waters, to be near you"
« Beach details

Porth Tyn Beach Weather and Tides

Isle of Anglesey, Wales

Latest Observations

01:00 Mon 5 Oct

17°C

19mph

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.

Mon

18°C

Tue

16°C

Wed

15°C

Thu

14°C

Fri

17°C

Sat

15°C

First light 06:15 Dawn 06:55 Sunrise 07:30 Sunset 18:41 Dusk 19:15 Nightfall 19:56 Waning Crescent Moon

7 October 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
Summary
Chance of Rain 61% 60% 61% 67% 66% 57% 0% 0% 0% 0% 3% 7% 8% 3% 7% 11% 34% 46% 48% 54% 18% 9% 10% 13%
Temperature 13°C 12°C 12°C 12°C 12°C 12°C 12°C 11°C 12°C 12°C 13°C 13°C 14°C 14°C 14°C 14°C 14°C 14°C 13°C 12°C 12°C 12°C 12°C 12°C
Feels like 12°C 12°C 11°C 11°C 11°C 10°C 10°C 10°C 10°C 11°C 12°C 12°C 13°C 13°C 13°C 13°C 13°C 12°C 11°C 11°C 10°C 10°C 10°C 10°C
Humidity 85% 84% 85% 81% 80% 78% 76% 75% 75% 74% 73% 70% 68% 66% 65% 63% 62% 63% 64% 67% 68% 66% 67% 69%
Visibility Good Moderate Good Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good Very Good
Pressure 1,019 mb 1,018 mb 1,018 mb 1,018 mb 1,018 mb 1,018 mb 1,018 mb 1,018 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,019 mb 1,020 mb 1,020 mb 1,021 mb 1,021 mb
Wind Direction
Wind Speed 14mph 14mph 14mph 14mph 14mph 14mph 13mph 14mph 14mph 15mph 17mph 18mph 18mph 18mph 19mph 19mph 19mph 19mph 19mph 19mph 19mph 20mph 21mph 19mph
Gusting to 21mph 22mph 22mph 21mph 21mph 20mph 21mph 22mph 23mph 25mph 26mph 27mph 27mph 27mph 28mph 28mph 29mph 29mph 28mph 29mph 29mph 30mph 29mph 30mph
Beaufort Scale
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
4
Moderate Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh Breeze
5
Fresh 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.

Monday

5 October

Mon

Low

Low

2.21m 

12:15 BST
11:15 GMT

High

High

4.16m 

18:31 BST
17:31 GMT

Tuesday

6 October

Tue

Low

Low

1.67m 

01:10 BST
00:10 GMT

High

High

4.12m 

07:26 BST
06:26 GMT

Low

Low

1.96m 

13:37 BST
12:37 GMT

High

High

4.46m 

19:41 BST
18:41 GMT

Wednesday

7 October

Wed

Low

Low

1.32m 

02:19 BST
01:19 GMT

High

High

4.41m 

08:22 BST
07:22 GMT

Low

Low

1.62m 

14:37 BST
13:37 GMT

High

High

4.77m 

20:32 BST
19:32 GMT

Thursday

8 October

Thu

Low

Low

1.01m 

03:12 BST
02:12 GMT

High

High

4.65m 

09:06 BST
08:06 GMT

Low

Low

1.3m 

15:24 BST
14:24 GMT

High

High

5.01m 

21:13 BST
20:13 GMT

Friday

9 October

Fri

Low

Low

0.8m 

03:55 BST
02:55 GMT

High

High

4.83m 

09:41 BST
08:41 GMT

Low

Low

1.05m 

16:06 BST
15:06 GMT

High

High

5.16m 

21:49 BST
20:49 GMT

Saturday

10 October

Sat

Low

Low

0.7m 

04:33 BST
03:33 GMT

High

High

4.95m 

10:13 BST
09:13 GMT

Low

Low

0.89m 

16:43 BST
15:43 GMT

High

High

5.21m 

22:24 BST
21:24 GMT

Sunday

11 October

Sun

Low

Low

0.7m 

05:08 BST
04:08 GMT

High

High

5m 

10:45 BST
09:45 GMT

Low

Low

0.85m 

17:19 BST
16:19 GMT

High

High

5.17m 

22:58 BST
21:58 GMT

Important! Tide times are for the nearest measurement point (Porth Trecastell) 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: Tywyn Fferam

Location type: Town

Nearest village: Rhosneigr

OS Grid: SH327717

Coordinates: 53°12'59"N 4°30'22"W

Mapcode: GBR 56.19V4

What 3 Words: insect.bedrock.dynasties

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: Aberffraw

Nearest postcode: LL64 5JR

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

Porth Tyn 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.

216.73.216.115 Mon, 05 Oct 2026 13:33:35 +0100