Moelwyn Mawr (Gwynedd) weather

Find a forecast

Forecast days

Today

Maximum daytime temperature: 7° Celsius; Minimum nighttime temperature: 5° Celsius;

Sunrise: 07:15

Sunset: 17:45

Fog.

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

Today

Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius;
Wed 25 Feb

Maximum daytime temperature: 7° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 07:12

Sunset: 17:46

Fog changing to heavy rain by late morning.

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

Wed 25 Feb

Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius;
Thu 26 Feb

Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 5° Celsius;

Sunrise: 07:10

Sunset: 17:48

Fog changing to heavy rain by late morning.

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

Thu 26 Feb

Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 5 degrees Celsius;
Fri 27 Feb

Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 0° Celsius;

Sunrise: 07:08

Sunset: 17:50

Light rain changing to sleet by early evening.

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

Fri 27 Feb

Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 0 degrees Celsius;
Sat 28 Feb

Maximum daytime temperature: 4° Celsius; Minimum nighttime temperature: 3° Celsius;

Sunrise: 07:06

Sunset: 17:52

Fog changing to sunny intervals by late morning.

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

Sat 28 Feb

Maximum daytime temperature: 4 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius;
Sun 1 Mar

Maximum daytime temperature: 6° Celsius; Minimum nighttime temperature: 3° Celsius;

Sunrise: 07:03

Sunset: 17:54

Light rain changing to fog in the afternoon.

L UV

No pollution data.

No pollen data.

Eryri / Snowdonia (Mountain region)

Sun 1 Mar

Maximum daytime temperature: 6 degrees Celsius; Minimum nighttime temperature: 3 degrees Celsius;
Mon 2 Mar

Maximum daytime temperature: 7° Celsius; Minimum nighttime temperature: -1° Celsius;

Sunrise: 07:01

Sunset: 17:56

Fog changing to cloudy by lunchtime.

L UV

No pollution data.

No pollen data.

Mon 2 Mar

Maximum daytime temperature: 7 degrees Celsius; Minimum nighttime temperature: -1 degrees Celsius;

Fog.

Sunrise: 07:15

Sunset: 17:45

L UV

L Pollution

No pollen data.

Eryri / Snowdonia (Mountain region)

7 day forecast for Moelwyn Mawr

Today (24 February 2026)

Time	23:00
Weather symbols
Chance of precipitation	<5%
Temperature (°C)	6°
Feels like temperature (°C)	0°
Wind direction and speed (mph)	SSW 27
Wind gust (mph)	30
Visibility (description)	M
Humidity	89%
UV	-

Wednesday (25 February 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%	<5%	<5%	<5%	<5%	20%	40%	60%	80%	90%	≥95%	≥95%	≥95%	90%	90%	90%	80%	60%	50%	50%	70%	70%	60%
Temperature (°C)	5°	5°	5°	5°	5°	5°	5°	5°	5°	6°	6°	6°	7°	7°	7°	6°	6°	6°	6°	6°	6°	6°	5°	5°
Feels like temperature (°C)	0°	-1°	-1°	-1°	-1°	0°	0°	0°	1°	1°	1°	1°	1°	1°	1°	1°	2°	1°	1°	1°	0°	0°	-1°	0°
Wind direction and speed (mph)	SSW 28	SSW 27	S 25	S 23	SSW 22	SSW 21	SSW 21	SSW 20	SSW 18	SSW 19	SSW 22	SSW 24	SSW 26	SSW 26	SSW 24	SW 22	SW 21	SW 23	SSW 23	SW 24	SSW 26	SSW 27	SW 29	SW 28
Wind gust (mph)	31	30	27	23	23	23	25	25	26	28	29	30	29	28	26	25	25	26	26	27	28	29	30	31
Visibility (description)	P	P	M	P	P	P	P	P	P	P	P	P	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	92%	93%	92%	92%	94%	95%	96%	96%	96%	95%	96%	98%	99%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%	100%
UV	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Thursday (26 February 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%	50%	50%	40%	30%	30%	30%	40%	70%	90%	90%	≥95%	≥95%	≥95%	≥95%	90%	80%	80%	70%	70%	70%	70%	70%	60%
Temperature (°C)	5°	5°	5°	5°	5°	5°	5°	5°	5°	4°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°
Feels like temperature (°C)	-1°	-1°	-1°	-1°	-1°	-1°	-2°	-2°	-2°	-2°	-2°	-2°	-2°	-2°	-2°	-2°	-2°	-1°	-1°	-1°	0°	0°	0°	1°
Wind direction and speed (mph)	SW 29	SW 29	SW 29	SW 29	SW 30	SW 30	SW 31	SW 32	SW 32	SW 34	SW 36	SSW 39	SSW 39	SSW 39	SSW 38	SSW 36	SW 34	SW 32	SW 29	SW 25	SW 22	SSW 20	SSW 19	SW 16
Wind gust (mph)	31	32	32	32	33	33	34	34	35	38	38	42	42	42	42	39	38	35	32	28	25	22	20	19
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	P	P	P	P	P	P	P	P	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	100%	100%	100%	100%	100%	100%	100%	100%	99%	99%	99%	99%	98%	98%	98%	99%	100%	100%	100%	100%	100%	100%	100%	100%
UV	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Friday (27 February 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%	70%	70%	80%	80%	80%	80%	80%	80%	80%	80%	70%	70%	70%	70%	70%	80%	80%	70%	60%	60%	50%	60%	60%
Temperature (°C)	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	6°	5°	5°	5°	5°	4°	4°	3°	3°	2°	2°	2°	2°
Feels like temperature (°C)	1°	1°	2°	2°	2°	2°	2°	2°	2°	1°	1°	1°	1°	0°	0°	0°	-1°	-1°	-2°	-2°	-3°	-3°	-3°	-4°
Wind direction and speed (mph)	SW 15	SSW 13	SW 11	SSW 10	SSW 9	S 9	SE 9	SE 10	SE 11	SSE 12	S 13	SSW 16	SSW 19	SW 20	WSW 19	WSW 18	WSW 17	WSW 16	WSW 16	WNW 16	WNW 16	NW 16	NW 16	NW 16
Wind gust (mph)	17	15	14	12	10	11	13	14	16	18	18	19	20	22	20	20	21	22	23	20	22	22	25	25
Visibility (description)	VP	VP	VP	VP	VP	VP	P	VP	P	P	P	P	P	P	P	P	P	P	P	P	P	P	P	P
Humidity	100%	100%	100%	100%	100%	99%	99%	99%	98%	97%	97%	96%	97%	95%	94%	93%	93%	93%	95%	94%	94%	93%	93%	92%
UV	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Saturday (28 February 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	60%	50%	40%	40%	40%	30%	30%	20%	20%	20%	10%	10%	20%	20%	40%	40%	50%	50%	50%	50%	50%	60%	50%	50%
Temperature (°C)	2°	1°	1°	1°	0°	0°	0°	0°	0°	1°	1°	2°	3°	3°	3°	3°	2°	2°	2°	3°	3°	3°	3°	3°
Feels like temperature (°C)	-4°	-4°	-5°	-5°	-5°	-5°	-5°	-5°	-5°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°	-4°
Wind direction and speed (mph)	NW 16	WNW 16	NW 15	NW 15	WNW 14	WNW 13	W 12	WSW 12	WSW 11	WSW 12	WSW 15	SW 19	SW 21	SW 23	SW 25	SW 26	SW 25	SSW 25	SSW 25	SSW 26	SSW 28	SSW 30	SSW 29	SSW 30
Wind gust (mph)	24	23	25	25	22	20	16	15	17	19	21	22	25	27	28	27	27	28	29	31	31	31	29	33
Visibility (description)	M	M	M	M	M	M	M	M	M	M	G	G	G	G	M	M	M	P	P	P	P	P	P	VP
Humidity	93%	92%	92%	92%	92%	92%	92%	92%	91%	89%	85%	77%	74%	74%	74%	77%	82%	87%	91%	93%	95%	95%	97%	96%
UV	-	-	-	-	-	-	-	1	1	1	1	1	1	1	1	1	1	1	-	-	-	-	-	-

Sunday (1 March 2026)

Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
Weather symbols
Chance of precipitation	70%	70%	80%	70%	50%	40%	40%	30%
Temperature (°C)	3°	4°	4°	5°	5°	5°	5°	5°
Feels like temperature (°C)	-3°	-3°	-3°	-2°	-1°	-1°	-2°	-2°
Wind direction and speed (mph)	SSW 31	SSW 34	SSW 34	SSW 35	SSW 35	SSW 33	SSW 38	SSW 37
Wind gust (mph)	33	39	40	41	41	38	41	40
Visibility (description)	VP	VP	P	P	P	P	P	M
Humidity	97%	96%	96%	96%	94%	92%	92%	91%
UV	-	-	-	1	1	1	-	-

Monday (2 March 2026)

Time	00:00	03:00	06:00	09:00	12:00	15:00	18:00	21:00
Weather symbols
Chance of precipitation	40%	30%	40%	30%	30%	30%	30%	20%
Temperature (°C)	4°	4°	4°	4°	6°	6°	4°	3°
Feels like temperature (°C)	-3°	-3°	-3°	-2°	0°	1°	-1°	-2°
Wind direction and speed (mph)	S 34	S 31	S 28	S 26	S 26	SSW 23	SSW 15	SW 13
Wind gust (mph)	34	31	30	30	26	25	16	14
Visibility (description)	M	P	M	M	M	M	M	M
Humidity	91%	92%	92%	91%	83%	79%	88%	92%
UV	-	-	-	1	1	1	-	-

UK video forecast

Moelwyn Mawr weather map

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Wales weather forecast

Headline:

Some mist and fog overnight. Drizzly across western hills

This Evening and Tonight:

Cloud and patchy rain may move into the far west at times overnight. Otherwise dry with clear spells, but some mist and fog patches may develop, especially in the east. Minimum temperature 9 °C.

Wednesday:

Western areas continuing to see some cloud and patchy rain at times, especially in the afternoon. Elsewhere, any fog clearing allowing some bright or sunny spells to develop. Feeling mild. Maximum temperature 13 °C.

Outlook for Thursday to Saturday:

Rain moving across the country on Thursday before turning brighter with some showers on Friday. Further rain likely later on Saturday. Temperatures returning to nearer average.

Updated: 16:00 (UTC) on Tue 24 Feb 2026

UK long range weather forecast

Changeable conditions are expected, with Atlantic frontal systems spreading across the UK, interspersed with drier and brighter interludes. Rainfall will typically be heaviest in the northwest, with much less reaching sheltered eastern areas. Some parts of the southeast may be largely fine. Across high ground in the north, some snow is possible at times. Winds will probably be strong at times, with a risk of gales. Temperatures are likely to be near to or slightly above average.

Updated: 14:00 (UTC) on Tue 24 Feb 2026

Changeable conditions will probably continue to dominate during this period, with Atlantic frontal systems spreading across the UK. These will bring spells of rain and perhaps strong winds, with the wettest conditions in the northwest, whilst the southeast will likely be driest. Temperatures are likely to be near to or slightly above normal overall. It is possible that longer spells of dry weather occur later in the month as more blocked pattern could develop, which could lead to some colder conditions too.

Updated: 15:00 (UTC) on Tue 24 Feb 2026

Moelwyn Mawr (Gwynedd) weather

Find a forecast

Forecast days

Today

Today

Wed 25 Feb

Wed 25 Feb

Thu 26 Feb

Thu 26 Feb

Fri 27 Feb

Fri 27 Feb

Sat 28 Feb

Sat 28 Feb

Sun 1 Mar

Sun 1 Mar

Mon 2 Mar

Mon 2 Mar

7 day forecast for Moelwyn Mawr

Tooltip header

UK video forecast

Wales weather forecast

Headline:

This Evening and Tonight:

Wednesday:

Outlook for Thursday to Saturday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

Causes of climate change

The water cycle

Forecasting fact-busters - lesson plan

Exploring extreme weather - lesson plan

The future change information behind the 'Human dynamics of climate change' poster

3 tips for staying safe in fog

Moelwyn Mawr (Gwynedd) weather

Find a forecast

Forecast days

Today

Today

Wed 25 Feb

Wed 25 Feb

Thu 26 Feb

Thu 26 Feb

Fri 27 Feb

Fri 27 Feb

Sat 28 Feb

Sat 28 Feb

Sun 1 Mar

Sun 1 Mar

Mon 2 Mar

Mon 2 Mar

7 day forecast for Moelwyn Mawr

UK video forecast

Wales weather forecast

Tuesday 24 Feb - Saturday 28 Feb

Headline:

This Evening and Tonight:

Wednesday:

Outlook for Thursday to Saturday:

UK long range weather forecast

Sunday 1 Mar - Tuesday 10 Mar

Wednesday 11 Mar - Wednesday 25 Mar

Nearest forecasts

More from the Met Office

Causes of climate change

The water cycle

Forecasting fact-busters - lesson plan

Exploring extreme weather - lesson plan

The future change information behind the 'Human dynamics of climate change' poster

3 tips for staying safe in fog