Porth Trwyn (Beach) (Isle of Anglesey) weather

Find a forecast

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.

Head to a lifeguarded beach; check the RNLI lifeguarded beach tool
Follow RNLI Float to Live advice if you find yourself struggling in the water
Know what to do if you get caught in a rip current (RNLI)
Check the tide times to avoid getting cut off by the tide coming in
Call 999 and ask for the coastguard in an emergency
Learn more about staying safe at the beach

Weather forecast Beach forecast

Forecast days

Today

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;

Sunrise: 06:40

Sunset: 20:03

Clear.

🏖️ Beach safety today:
Enjoy the beach but be aware that the wind may affect your control of direction

• beginner paddleboarders/kayakers should seek advice

Tide: Next low tide (2.3m) at 00:52

M UV

L Pollution

H Pollen

Today

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;
Mon 7 Apr

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;

Sunrise: 06:37

Sunset: 20:04

Sunny.

M UV

L Pollution

VH Pollen

Mon 7 Apr

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;
Tue 8 Apr

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 06:35

Sunset: 20:06

Sunny.

M UV

L Pollution

VH Pollen

Tue 8 Apr

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 4° Celsius;
Wed 9 Apr

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;

Sunrise: 06:33

Sunset: 20:08

Sunny.

M UV

L Pollution

VH Pollen

Wed 9 Apr

Maximum daytime temperature: 15° Celsius; Minimum nighttime temperature: 2° Celsius;
Thu 10 Apr

Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 06:30

Sunset: 20:10

Sunny.

M UV

L Pollution

H Pollen

Thu 10 Apr

Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 4° Celsius;
Fri 11 Apr

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 06:28

Sunset: 20:12

Sunny.

M UV

No pollution data.

No pollen data.

Fri 11 Apr

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 4° Celsius;
Sat 12 Apr

Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 06:26

Sunset: 20:13

Sunny.

M UV

No pollution data.

No pollen data.

Sat 12 Apr

Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 6° Celsius;
Sun 13 Apr

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 06:23

Sunset: 20:15

Sunny intervals changing to partly cloudy by early evening.

M UV

No pollution data.

No pollen data.

Sun 13 Apr

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 6° Celsius;

Clear.

Sunrise: 06:40

Sunset: 20:03

M UV

L Pollution

H Pollen

8 day forecast for Porth Trwyn (Beach)

Today (6 April 2025)

Time	22:00	23:00
Weather symbols
Chance of precipitation	<5%	<5%
Temperature (°C)	9°	8°
Feels like temperature (°C)	7°	6°
Wind direction and speed (mph)	E 8	E 8
Wind gust (mph)	18	19
Visibility (description)	VG	VG
Humidity	73%	75%
UV	-	-
Wind direction and speed (mph)	8	8
Height of waves offshore (m)	0.2	0.2
Period of waves offshore (s)	11	10
Direction of waves offshore

Monday (7 April 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
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	8°	7°	6°	5°	4°	4°	3°	3°	6°	9°	11°	12°	13°	13°	13°	13°	13°	13°	12°	12°	8°	8°	7°	7°
Feels like temperature (°C)	5°	4°	3°	3°	2°	2°	1°	2°	6°	9°	11°	11°	12°	12°	12°	12°	12°	12°	11°	11°	7°	6°	5°	5°
Wind direction and speed (mph)	E 8	E 8	E 7	E 6	ENE 5	ENE 5	ENE 5	ENE 4	NE 3	NNE 3	N 4	NNW 4	NW 5	NW 6	NW 7	NW 7	NW 6	NNW 6	N 6	N 5	NE 5	NE 6	ENE 6	ENE 5
Wind gust (mph)	17	16	14	13	11	10	10	8	6	7	10	13	14	12	11	10	10	10	10	10	10	11	11	11
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	G	G	G
Humidity	74%	75%	80%	83%	84%	85%	86%	88%	83%	73%	64%	56%	55%	55%	54%	55%	55%	56%	59%	70%	83%	85%	85%	87%
UV	-	-	-	-	-	-	1	1	1	1	2	3	3	4	3	3	2	1	1	1	1	-	-	-
Wind direction and speed (mph)	8	7	7	6	5	5	5	4	3	3	3	4	5	6	7	7	6	6	6	5	5	6	6	5
Height of waves offshore (m)	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	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
Period of waves offshore (s)	10	10	10	10	10	10	10	10	10	9	9	9	9	9	11	11	11	10	10	10	10	10	10	10
Direction of waves offshore

Tuesday (8 April 2025)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	5°	5°	3°	4°	12°	14°	15°	12°	7°
Feels like temperature (°C)	4°	4°	2°	3°	12°	13°	13°	10°	5°
Wind direction and speed (mph)	ESE 4	ESE 4	ESE 4	E 3	NW 3	N 7	NNE 8	NNE 7	NE 6
Wind gust (mph)	9	8	8	7	9	12	12	12	10
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	G	G
Humidity	88%	83%	79%	83%	57%	53%	52%	71%	89%
UV	-	-	-	1	2	4	2	1	-
Wind direction and speed (mph)	4	4	4	3	3	7	8	7	6
Height of waves offshore (m)	0.1	0.1	0.1	0.1	0.1	0.2	0.2	0.3	0.3
Period of waves offshore (s)	10	10	9	8	8	8	10	12	13
Direction of waves offshore

Wednesday (9 April 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	6°	5°	5°	12°	14°	14°	12°	7°
Feels like temperature (°C)	5°	3°	3°	11°	12°	12°	10°	6°
Wind direction and speed (mph)	ENE 5	NE 4	NE 4	NE 6	NE 9	NNE 10	NNE 8	NE 5
Wind gust (mph)	9	9	11	14	16	15	13	10
Visibility (description)	G	G	G	VG	VG	VG	VG	G
Humidity	88%	90%	94%	70%	56%	55%	72%	86%
UV	-	-	1	2	4	2	1	-
Wind direction and speed (mph)	5	4	4	6	9	10	8	5
Height of waves offshore (m)	0.2	0.2	0.2	0.3	0.3	0.3	0.4	0.3
Period of waves offshore (s)	13	13	13	13	12	12	12	12
Direction of waves offshore

Thursday (10 April 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	6°	4°	4°	12°	14°	14°	12°	8°
Feels like temperature (°C)	5°	3°	3°	12°	13°	13°	12°	6°
Wind direction and speed (mph)	ENE 4	ESE 3	SE 3	WSW 4	W 7	W 7	WSW 5	SSE 5
Wind gust (mph)	7	5	5	7	10	9	8	7
Visibility (description)	G	G	G	VG	VG	VG	VG	G
Humidity	87%	89%	91%	72%	63%	61%	73%	92%
UV	-	-	1	2	4	2	1	-
Wind direction and speed (mph)	4	3	3	4	7	7	6	5
Height of waves offshore (m)	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
Period of waves offshore (s)	12	11	11	11	11	11	11	11
Direction of waves offshore

Friday (11 April 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	7°	6°	6°	13°	16°	17°	14°	7°
Feels like temperature (°C)	5°	4°	4°	12°	14°	15°	13°	6°
Wind direction and speed (mph)	SSE 5	SSE 4	SSE 4	SW 5	W 7	W 7	SSW 6	SE 5
Wind gust (mph)	6	6	7	9	11	10	6	5
Visibility (description)	G	G	G	VG	VG	VG	VG	VG
Humidity	92%	93%	93%	69%	57%	53%	67%	86%
UV	-	-	1	2	4	2	1	-
Wind direction and speed (mph)	5	4	4	5	7	7	6	5
Height of waves offshore (m)	–	–	–	–	0.1	0.1	0.1	0.1
Period of waves offshore (s)	–	–	–	–	10	10	10	10
Direction of waves offshore

Saturday (12 April 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	10%	10%	10%	10%	10%
Temperature (°C)	6°	6°	6°	14°	17°	17°	15°	10°
Feels like temperature (°C)	5°	4°	4°	13°	15°	15°	13°	8°
Wind direction and speed (mph)	S 5	S 5	S 5	S 7	SSW 10	SW 10	SSW 8	S 7
Wind gust (mph)	4	5	6	14	16	15	8	7
Visibility (description)	G	G	G	VG	VG	VG	VG	VG
Humidity	91%	91%	92%	64%	55%	53%	69%	82%
UV	-	-	1	2	4	2	1	-
Wind direction and speed (mph)	5	–	–	–	–	–	–	–
Height of waves offshore (m)	0.1	–	–	–	–	–	–	–
Period of waves offshore (s)	10	–	–	–	–	–	–	–
Direction of waves offshore		–	–	–	–	–	–	–

Sunday (13 April 2025)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	20%	20%	30%	30%	20%	30%	30%	30%
Temperature (°C)	9°	8°	9°	12°	14°	15°	13°	10°
Feels like temperature (°C)	7°	6°	7°	10°	12°	13°	11°	8°
Wind direction and speed (mph)	SSW 7	SW 7	SW 7	W 9	W 11	W 11	WNW 9	WNW 8
Wind gust (mph)	9	8	10	15	15	14	9	8
Visibility (description)	G	G	G	G	VG	VG	VG	G
Humidity	87%	86%	90%	78%	68%	64%	74%	85%
UV	-	-	1	2	3	2	1	-
Wind direction and speed (mph)	–	–	–	–	–	–	–	–
Height of waves offshore (m)	–	–	–	–	–	–	–	–
Period of waves offshore (s)	–	–	–	–	–	–	–	–
Direction of waves offshore	–	–	–	–	–	–	–	–

Tide times

Sunday 6 April


	Time (UTC+1)

Tide times and heights are from Holyhead tidal station which is 3.7 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 6 April


	Time (UTC+1)

Tide times and heights are from Holyhead tidal station which is 3.7 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 6 April


	Time (UTC+1)

Tide times and heights are from Holyhead tidal station which is 3.7 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 6 April


	Time (UTC+1)

Tide times and heights are from Holyhead tidal station which is 3.7 miles away. So times may be different at this beach. What does this mean?

UK video forecast

Porth Trwyn (Beach) weather map

View the weather with our interactive map

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Wales weather forecast

Headline:

A largely sunny week ahead. Warm days but chilly nights.

This Evening and Tonight:

Remaining sunny into this evening with clear skies persisting for most overnight. Turning chilly through the early hours with a widespread rural frost developing by the morning. A few localised fog patches are possible in the countryside. Minimum temperature 0 °C.

Monday:

Any mist or low cloud quickly clearing to leave another sunny day. Feeling warm in the strong April sunshine with light winds. Very high levels of tree pollen are expected. Maximum temperature 17 °C.

Outlook for Tuesday to Thursday:

Staying dry with warm and mainly sunny days, and quite chilly nights with rural frosts. Patchy low cloud or fog in places overnight. Light winds with sea breezes possible.

Updated: 17:00 (UTC+1) on Sun 6 Apr 2025

UK long range weather forecast

Most areas will be dry and sunny with light winds at first as high pressure extends across much of the UK. However, it will be cloudier and breezier in parts of the far north with some light rain or drizzle at times. Temperatures will be above normal away from windward coasts. A gradual change to a more unsettled weather regime is likely thereafter, with Atlantic frontal systems from the west or showers from the south making inroads across the UK. This is expected to herald a wetter period through the middle of April with showers or longer spells of rain at times, which could be heavy and thundery in places. Strong winds could develop in some areas, particularly the south and west. Temperatures are likely to return closer to normal.

Updated: 15:00 (UTC+1) on Sun 6 Apr 2025

Some unsettled weather is possible at this start of this period with showers or longer spells of rain in places. However, a change to more settled conditions is likely during the last part of April with high pressure becoming more dominant. This settled theme continues into early May, although some spells of wetter, unsettled weather remain possible, especially in the south. Temperatures are expected to be above average overall.

Updated: 16:00 (UTC+1) on Sun 6 Apr 2025

Porth Trwyn (Beach) (Isle of Anglesey) weather

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Forecast days

Today

Today

Mon 7 Apr

Mon 7 Apr

Tue 8 Apr

Tue 8 Apr

Wed 9 Apr

Wed 9 Apr

Thu 10 Apr

Thu 10 Apr

Fri 11 Apr

Fri 11 Apr

Sat 12 Apr

Sat 12 Apr

Sun 13 Apr

Sun 13 Apr

8 day forecast for Porth Trwyn (Beach)

Tide times

Sunday 6 April

Tide times

Sunday 6 April

Tide times

Sunday 6 April

Tide times

Sunday 6 April

Tide times

Monday 7 April

Tide times

Monday 7 April

Tide times

Monday 7 April

Tide times

Monday 7 April

Tide times

Tuesday 8 April

Tide times

Tuesday 8 April

Tide times

Tuesday 8 April

Tide times

Tuesday 8 April

Tide times

Wednesday 9 April

Tide times

Wednesday 9 April

Tide times

Wednesday 9 April

Tide times

Wednesday 9 April

Tide times

Thursday 10 April

Tide times

Thursday 10 April

Tide times

Thursday 10 April

Tide times

Thursday 10 April

Tide times

Friday 11 April

Tide times

Friday 11 April

Tide times

Friday 11 April

Tide times

Friday 11 April

Tide times

Saturday 12 April

Tide times

Saturday 12 April

Tide times

Saturday 12 April

Tide times

Saturday 12 April

Tide times

Sunday 13 April

Tide times