Holyhead Bay (Isle of Anglesey) weather

Find a forecast

Forecast days

Wed 15 Apr

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 06:20

Sunset: 20:19
Heavy showers.

M UV

L Pollution

L Pollen
Next high tide: 22:09 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Wed 15 Apr

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
Thu 16 Apr

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 10° Celsius;

Sunrise: 06:17

Sunset: 20:21
Sunny changing to cloudy by lunchtime.

M UV

L Pollution

M Pollen
First high tide: 10:16 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Thu 16 Apr

Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 10 degrees Celsius;
Fri 17 Apr

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 9° Celsius;

Sunrise: 06:15

Sunset: 20:22
Heavy rain changing to sunny intervals by late morning.

M UV

L Pollution

L Pollen
First high tide: 10:54 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Fri 17 Apr

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 9 degrees Celsius;
Sat 18 Apr

Maximum daytime temperature: 12° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 06:13

Sunset: 20:24
Sunny intervals changing to partly cloudy by nighttime.

M UV

L Pollution

M Pollen
First high tide: 11:34 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Sat 18 Apr

Maximum daytime temperature: 12 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
Sun 19 Apr

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 5° Celsius;

Sunrise: 06:10

Sunset: 20:26
Sunny changing to partly cloudy by nighttime.

M UV

L Pollution

H Pollen
First high tide: 12:17 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Sun 19 Apr

Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius;
Mon 20 Apr

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 5° Celsius;

Sunrise: 06:08

Sunset: 20:28
Sunny changing to partly cloudy by early evening.

M UV

No pollution data.

No pollen data.
First high tide: 00:39 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Mon 20 Apr

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius;
Tue 21 Apr

Maximum daytime temperature: 13° Celsius; Minimum nighttime temperature: 6° Celsius;

Sunrise: 06:06

Sunset: 20:30
Sunny intervals changing to cloudy in the afternoon.

M UV

No pollution data.

No pollen data.
First high tide: 01:22 for
Porth Trwyn (Beach)
Porth Tywyn Mawr (Sandy Beach)

3.0 miles
Tue 21 Apr

Maximum daytime temperature: 13 degrees Celsius; Minimum nighttime temperature: 6 degrees Celsius;

Heavy showers.

Sunrise: 06:20

Sunset: 20:19

M UV

L Pollution

L Pollen

Next high tide: 22:09 for

Porth Trwyn (Beach)

7 day forecast for Holyhead Bay

Today (15 April 2026)

Time	21:00	22:00	23:00
Weather symbols
Chance of precipitation	10%	≥95%	80%
Temperature (°C)	10°	10°	10°
Feels like temperature (°C)	6°	6°	6°
Wind direction and speed (mph)	S 29	S 30	SSW 31
Wind gust (mph)	42	47	45
Visibility (description)	M	M	M
Humidity	85%	85%	85%
UV	-	-	-

Thursday (16 April 2026)

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	70%	20%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	10%	30%	60%	70%	90%	90%	90%	90%	60%
Temperature (°C)	10°	10°	10°	10°	10°	10°	10°	9°	10°	10°	11°	11°	11°	11°	11°	11°	11°	11°	11°	11°	11°	11°	11°	11°
Feels like temperature (°C)	6°	6°	6°	6°	6°	6°	6°	5°	6°	6°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°
Wind direction and speed (mph)	SSW 30	SSW 30	SSW 30	SW 29	SW 28	SW 26	SW 24	SW 23	SW 22	SW 22	SW 21	SW 21	SSW 21	SSW 21	SSW 21	SSW 21	SSW 21	SSW 21	SSW 21	S 20	S 20	S 20	S 21	S 21
Wind gust (mph)	42	41	41	39	36	34	31	30	30	28	27	26	26	27	28	28	28	28	27	26	26	27	29	30
Visibility (description)	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M
Humidity	85%	85%	85%	84%	83%	83%	84%	85%	85%	85%	85%	85%	86%	86%	87%	89%	91%	91%	92%	92%	93%	92%	92%	92%
UV	-	-	-	-	-	-	1	1	1	2	2	3	4	4	3	2	1	1	1	1	1	-	-	-

Friday (17 April 2026)

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	50%	30%	40%	40%	50%	90%	≥95%	90%	60%	30%	20%	10%	<5%	<5%	<5%	<5%	10%	10%	10%	20%	20%	10%	10%	10%
Temperature (°C)	11°	11°	11°	11°	11°	11°	11°	10°	10°	11°	11°	11°	12°	12°	12°	12°	12°	11°	11°	11°	11°	11°	10°	10°
Feels like temperature (°C)	7°	7°	7°	7°	7°	7°	6°	6°	6°	6°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	6°	6°	6°
Wind direction and speed (mph)	S 22	S 23	S 24	S 25	S 26	S 27	S 28	S 28	S 28	SSW 27	SSW 27	SSW 27	SSW 28	SSW 28	SSW 28	SSW 29	SSW 29	SSW 29	SSW 29	SSW 29	SSW 28	SSW 27	SSW 26	SW 26
Wind gust (mph)	31	32	34	35	36	37	38	37	36	36	36	36	37	37	38	39	39	39	38	38	37	36	35	34
Visibility (description)	M	M	M	M	M	P	P	P	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M	M
Humidity	92%	92%	89%	90%	91%	91%	92%	93%	93%	93%	91%	89%	86%	86%	85%	85%	85%	84%	84%	85%	85%	85%	85%	85%
UV	-	-	-	-	-	-	1	1	1	1	2	3	4	4	4	3	2	1	1	1	1	-	-	-

Saturday (18 April 2026)

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%	10%	10%	10%	<5%	10%	20%	10%	10%	10%	<5%	<5%	10%	20%	30%	40%	40%	50%	40%	40%	30%	20%	10%
Temperature (°C)	10°	10°	10°	10°	10°	9°	9°	9°	9°	10°	10°	10°	10°	11°	11°	11°	11°	10°	10°	10°	10°	9°	9°	9°
Feels like temperature (°C)	6°	6°	6°	6°	6°	6°	6°	5°	5°	6°	6°	7°	7°	8°	8°	8°	8°	8°	8°	7°	7°	7°	6°	6°
Wind direction and speed (mph)	SW 25	SW 24	SW 24	SW 23	WSW 22	WSW 21	WSW 21	WSW 21	WSW 21	W 21	W 20	W 19	W 18	W 16	WSW 15	WSW 15	WSW 14	WSW 13	WSW 13	WSW 12	W 12	W 13	W 14	WNW 15
Wind gust (mph)	33	32	31	30	29	28	29	28	29	28	26	25	24	22	22	22	24	22	22	19	19	19	19	21
Visibility (description)	M	M	M	G	M	M	G	G	G	G	G	G	G	G	G	G	G	G	G	G	G	VG	VG	VG
Humidity	84%	83%	81%	82%	82%	80%	80%	79%	79%	78%	76%	76%	74%	74%	74%	75%	75%	75%	75%	75%	76%	76%	75%	75%
UV	-	-	-	-	-	-	1	1	1	2	2	3	4	4	4	3	2	1	1	1	1	-	-	-

Sunday (19 April 2026)

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	10%	10%	10%	<5%	10%	10%	10%	10%	10%	10%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	9°	9°	8°	8°	8°	8°	7°	8°	8°	9°	9°	9°	10°	10°	10°	10°	10°	10°	10°	10°	9°	9°	8°	8°
Feels like temperature (°C)	6°	5°	5°	5°	4°	4°	4°	4°	5°	6°	7°	7°	7°	8°	8°	8°	8°	8°	8°	8°	7°	6°	6°	5°
Wind direction and speed (mph)	WNW 15	WNW 15	NW 15	NW 15	NW 14	NW 13	NW 13	NW 13	NW 12	NW 11	NW 11	NW 10	NW 10	NW 10	NW 10	NW 9	NW 9	NW 8	WNW 9	WNW 9	WNW 9	WNW 9	NNW 9	NNW 9
Wind gust (mph)	21	20	19	19	18	17	17	16	15	16	15	14	14	14	14	13	13	13	13	14	14	13	13	13
Visibility (description)	VG	VG	VG	G	VG	VG	VG	G	G	G	VG	VG	VG	G	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG
Humidity	74%	75%	74%	74%	75%	75%	76%	75%	75%	75%	75%	75%	75%	74%	73%	70%	68%	67%	68%	70%	71%	73%	75%	76%
UV	-	-	-	-	-	-	1	1	1	2	3	3	4	4	4	3	2	1	1	1	1	-	-	-

Monday (20 April 2026)

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%	10%
Temperature (°C)	8°	7°	7°	7°	10°	12°	12°	11°	8°
Feels like temperature (°C)	5°	5°	4°	4°	8°	10°	10°	8°	5°
Wind direction and speed (mph)	N 8	NNE 8	NE 9	ENE 9	NE 10	NNW 11	NNE 11	NNE 12	NNE 12
Wind gust (mph)	12	14	14	16	16	18	18	18	20
Visibility (description)	G	G	G	G	G	G	G	G	M
Humidity	76%	77%	78%	79%	71%	69%	69%	70%	77%
UV	-	-	-	1	3	4	2	1	-

Tuesday (21 April 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	20%	20%	20%	20%
Temperature (°C)	7°	6°	7°	10°	12°	12°	11°	9°
Feels like temperature (°C)	4°	3°	3°	7°	9°	9°	8°	6°
Wind direction and speed (mph)	ENE 12	ENE 13	ENE 13	E 14	ENE 14	ENE 14	ENE 14	ENE 14
Wind gust (mph)	18	20	21	23	22	22	21	21
Visibility (description)	M	M	M	M	G	G	M	M
Humidity	79%	79%	79%	75%	70%	70%	73%	78%
UV	-	-	1	2	4	2	1	-

UK video forecast

Holyhead Bay weather map

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Wales weather forecast

Headline:

Changeable this week. Turning drier through the weekend.

This Evening and Tonight:

Breezy tonight with clear spells and occasional showers moving through, these could be heavy at times and merging into longer spells of rain for a time overnight. Staying mild with the brisk winds. Minimum temperature 7 °C.

Thursday:

Largely dry with sunny spells though the odd shower still possible. Turning cloudier into the afternoon with more persistent rain arriving by the evening. Winds easing. Maximum temperature 16 °C.

Outlook for Friday to Sunday:

A spell of rain will move through on Friday. High pressure then building in over the weekend to bring a settled picture with sunny spells and lighter winds.

Updated: 16:00 (UTC+1) on Wed 15 Apr 2026

UK long range weather forecast

High pressure to the north or northeast of the UK will bring plenty of dry weather and sunny spells for most at first. Low pressure in the Atlantic will try to push weather fronts towards the UK from the south west, but these may remain slow moving. Some parts of the east coast could be on the chilly side with low cloud and onshore breeze, but further west it will likely feel quite warm, especially in sunnier areas. From next weekend and into the start of the following week, there are signs that more unsettled weather could return for a time, bringing rain or showers to some areas.

Updated: 13:00 (UTC+1) on Wed 15 Apr 2026

Signals are not very strong for the extended forecast range, but in broad terms higher pressure is more likely to the north, with lower pressure to the south. Across Scotland and northern half of England this would mean drier and more settled weather. Meanwhile, Northern Ireland, Wales and the southern half of England perhaps seeing a greater chance of rain or showers at times, but plenty of scope for fair weather in between. Temperatures will probably be close to or slightly above average overall, perhaps becoming more widely warm at times.

Updated: 14:00 (UTC+1) on Wed 15 Apr 2026

Holyhead Bay (Isle of Anglesey) weather

Find a forecast

Forecast days

Wed 15 Apr

Wed 15 Apr

Thu 16 Apr

Thu 16 Apr

Fri 17 Apr

Fri 17 Apr

Sat 18 Apr

Sat 18 Apr

Sun 19 Apr

Sun 19 Apr

Mon 20 Apr

Mon 20 Apr

Tue 21 Apr

Tue 21 Apr

7 day forecast for Holyhead Bay

Tooltip header

UK video forecast

Wales weather forecast

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

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The water cycle

The present-day information behind the 'Human dynamics of climate change' poster

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Holyhead Bay (Isle of Anglesey) weather

Find a forecast

Forecast days

Wed 15 Apr

Wed 15 Apr

Thu 16 Apr

Thu 16 Apr

Fri 17 Apr

Fri 17 Apr

Sat 18 Apr

Sat 18 Apr

Sun 19 Apr

Sun 19 Apr

Mon 20 Apr

Mon 20 Apr

Tue 21 Apr

Tue 21 Apr

7 day forecast for Holyhead Bay

UK video forecast

Wales weather forecast

Wednesday 15 Apr - Sunday 19 Apr

Headline:

This Evening and Tonight:

Thursday:

Outlook for Friday to Sunday:

UK long range weather forecast

Monday 20 Apr - Wednesday 29 Apr

Thursday 30 Apr - Thursday 14 May

Nearest forecasts

More from the Met Office

Causes of climate change

Weather-themed colouring downloads

The water cycle

The present-day information behind the 'Human dynamics of climate change' poster

Weather warriors - lesson plan

3 tips for staying safe in fog