Cadair Idris (Gwynedd) weather

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Forecast days

Sun 31 May

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 8° Celsius;

Sunrise: 04:59

Sunset: 21:28

Fog.

H UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

Sun 31 May

Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
Mon 1 Jun

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 8° Celsius;

Sunrise: 04:58

Sunset: 21:29

Heavy rain.

M UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

Mon 1 Jun

Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 8 degrees Celsius;
Tue 2 Jun

Maximum daytime temperature: 10° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 04:57

Sunset: 21:31

Light showers changing to fog by lunchtime.

H UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

Tue 2 Jun

Maximum daytime temperature: 10 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
Wed 3 Jun

Maximum daytime temperature: 11° Celsius; Minimum nighttime temperature: 7° Celsius;

Sunrise: 04:57

Sunset: 21:32

Fog changing to light rain by late morning.

M UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

Wed 3 Jun

Maximum daytime temperature: 11 degrees Celsius; Minimum nighttime temperature: 7 degrees Celsius;
Thu 4 Jun

Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 04:56

Sunset: 21:33

Light showers.

H UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

Thu 4 Jun

Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius;
Fri 5 Jun

Maximum daytime temperature: 9° Celsius; Minimum nighttime temperature: 4° Celsius;

Sunrise: 04:55

Sunset: 21:34

Light showers changing to sunny intervals in the afternoon.

H UV

No pollution data.

No pollen data.

Fri 5 Jun

Maximum daytime temperature: 9 degrees Celsius; Minimum nighttime temperature: 4 degrees Celsius;
Sat 6 Jun

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

Sunrise: 04:55

Sunset: 21:35

Sunny intervals changing to cloudy by lunchtime.

M UV

No pollution data.

No pollen data.

Sat 6 Jun

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

Fog.

Sunrise: 04:59

Sunset: 21:28

H UV

L Pollution

L Pollen

Eryri / Snowdonia (Mountain region)

7 day forecast for Cadair Idris

Today (31 May 2026)

Time	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%	10%	10%	10%	10%	20%	20%
Temperature (°C)	9°	9°	9°	9°	8°	8°	8°	8°	8°	8°
Feels like temperature (°C)	5°	5°	5°	4°	4°	4°	4°	4°	4°	4°
Wind direction and speed (mph)	WSW 20	WSW 20	WSW 21	WSW 21	WSW 22	WSW 21	SW 20	SW 22	SW 23	SW 25
Wind gust (mph)	22	23	23	23	25	23	22	24	25	28
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	86%	83%	87%	91%	92%	93%	97%	99%	99%	99%
UV	5	4	3	2	1	1	1	1	-	-

Monday (1 June 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	20%	10%	10%	40%	60%	80%	90%	90%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	≥95%	90%	90%
Temperature (°C)	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	9°	9°	10°	10°	10°	10°	10°	10°	10°	10°	10°	10°	10°	10°
Feels like temperature (°C)	3°	3°	3°	3°	3°	3°	3°	4°	4°	4°	5°	5°	5°	5°	5°	5°	5°	5°	5°	5°	6°	6°	6°	5°
Wind direction and speed (mph)	SW 27	SW 27	SW 27	SW 26	SSW 26	SSW 27	SSW 24	SSW 26	SSW 27	SSW 27	SSW 28	SSW 29	SSW 33	SSW 34	SSW 33	SSW 33	SSW 33	SSW 32	SSW 31	SSW 30	SSW 28	SSW 27	SW 26	SSW 26
Wind gust (mph)	30	30	29	29	29	30	27	28	29	30	31	32	36	37	37	36	36	35	34	33	31	30	29	29
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	98%	96%	96%	95%	96%	96%	97%	98%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%	99%
UV	-	-	-	-	1	1	1	1	1	1	1	2	2	1	1	1	1	1	1	1	1	1	-	-

Tuesday (2 June 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	80%	70%	60%	70%	70%	70%	70%	60%	60%	60%	60%	60%	50%	50%	40%	40%	40%	50%	50%	50%	60%	60%	60%	60%
Temperature (°C)	9°	9°	9°	8°	8°	8°	8°	8°	8°	8°	8°	8°	8°	9°	9°	9°	9°	8°	8°	8°	8°	8°	8°	8°
Feels like temperature (°C)	5°	5°	4°	4°	4°	4°	3°	4°	4°	4°	4°	4°	4°	4°	4°	4°	5°	4°	4°	4°	4°	4°	4°	4°
Wind direction and speed (mph)	SW 23	SW 23	SW 22	SW 21	SW 20	SW 19	SW 19	WSW 19	WSW 20	WSW 19	WSW 20	W 21	W 24	W 24	W 24	W 25	W 25	W 25	W 23	W 22	W 22	W 21	W 21	W 22
Wind gust (mph)	26	25	24	21	20	20	20	20	20	20	21	22	26	26	27	28	28	28	24	23	22	24	23	24
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	99%	99%	99%	99%	99%	99%	98%	98%	98%	97%	96%	96%	94%	92%	90%	89%	89%	91%	91%	94%	96%	96%	96%	96%
UV	-	-	-	-	1	1	1	1	1	2	4	4	6	5	5	4	3	2	1	1	1	1	-	-

Wednesday (3 June 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%	50%	40%	40%	30%	30%	40%	50%	60%	70%	70%	70%	70%	60%	60%	50%	40%	40%	40%	40%	40%	40%	50%	60%
Temperature (°C)	8°	8°	8°	7°	7°	7°	7°	7°	7°	7°	7°	7°	8°	8°	9°	9°	9°	9°	9°	9°	8°	8°	8°	8°
Feels like temperature (°C)	4°	3°	3°	3°	2°	2°	2°	2°	2°	1°	1°	2°	2°	3°	3°	3°	4°	3°	3°	3°	3°	2°	2°	2°
Wind direction and speed (mph)	W 20	W 21	W 20	W 21	WSW 21	WSW 22	WSW 22	WSW 23	SW 24	SW 26	SSW 27	SSW 29	SSW 33	SSW 35	SSW 36	SSW 39	SSW 41	SW 42	SW 43	SW 42	SW 41	SW 41	SW 41	SW 41
Wind gust (mph)	22	22	21	23	22	22	23	25	26	26	27	31	36	38	40	43	45	47	48	47	46	45	46	45
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	96%	95%	96%	95%	96%	96%	95%	94%	92%	93%	92%	93%	92%	91%	90%	91%	88%	86%	87%	89%	90%	92%	92%	93%
UV	-	-	-	-	1	1	1	1	1	1	2	3	3	2	2	3	2	1	1	1	1	1	-	-

Thursday (4 June 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%	70%	70%	70%	70%	70%	70%	60%	60%	60%	60%	60%	60%	60%	60%	50%	60%	60%	60%	60%	60%	60%	60%	60%
Temperature (°C)	8°	8°	8°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	7°	6°	6°	6°	6°
Feels like temperature (°C)	2°	2°	2°	1°	1°	1°	1°	1°	1°	1°	1°	1°	1°	2°	1°	1°	1°	1°	0°	0°	0°	0°	0°	0°
Wind direction and speed (mph)	SW 36	SW 36	SW 36	SW 35	SW 34	SW 34	SW 34	SW 34	SW 35	SW 36	WSW 37	SW 37	WSW 37	WSW 36	WSW 37	WSW 36	WSW 36	WSW 36	WSW 43	WSW 42	SW 40	WSW 38	WSW 37	WSW 36
Wind gust (mph)	39	39	39	38	38	37	37	37	39	40	40	40	40	40	38	38	38	36	47	46	44	42	40	39
Visibility (description)	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP	VP
Humidity	93%	94%	94%	95%	94%	94%	94%	93%	93%	91%	90%	89%	87%	86%	84%	83%	82%	83%	83%	83%	84%	86%	87%	87%
UV	-	-	-	-	1	1	1	1	1	2	3	5	5	6	4	3	3	1	1	1	1	1	-	-

Friday (5 June 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	60%	70%	60%	70%	60%	50%	50%	40%	40%
Temperature (°C)	6°	6°	5°	5°	7°	9°	9°	8°	6°
Feels like temperature (°C)	-1°	-1°	-2°	-1°	1°	3°	3°	2°	-1°
Wind direction and speed (mph)	WSW 40	WSW 37	SW 35	SW 30	SW 34	SW 44	SW 45	WSW 41	WSW 33
Wind gust (mph)	44	41	39	33	37	49	49	45	37
Visibility (description)	VP	VP	VP	VP	VP	P	P	M	P
Humidity	87%	87%	88%	86%	80%	71%	68%	74%	87%
UV	-	-	1	1	2	6	3	1	-

Saturday (6 June 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	30%	30%	40%	40%	30%	30%	40%	40%
Temperature (°C)	5°	5°	6°	8°	10°	10°	9°	7°
Feels like temperature (°C)	-1°	-2°	0°	3°	5°	5°	4°	1°
Wind direction and speed (mph)	WSW 29	SW 28	SW 27	SW 34	SW 38	SW 40	SSW 38	SSW 36
Wind gust (mph)	32	31	30	37	42	44	41	40
Visibility (description)	VP	VP	VP	VP	P	P	VP	VP
Humidity	91%	91%	88%	77%	70%	69%	76%	88%
UV	-	1	1	4	5	3	1	-

News

Heatwave to give way to fresher, more changeable conditions

The widespread heatwave will gradually reduce in intensity in the coming days, with a transition to more unsettled and cooler weather by the weekend for many.

UK video forecast

Cadair Idris weather map

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Wales weather forecast

Headline:

Spells of rain and showers as we head into June.

Today:

A rather grey start but cloud will lift and break throughout the morning allowing some spells of sunshine to develop. A few showers will also develop but many will remain dry. Feeling fresher than of late. Maximum temperature 19 °C.

Tonight:

Apart from the odd shower it will be a dry evening with some late sunshine. Overnight cloud will tend to increase with the breeze also freshening. Minimum temperature 13 °C.

Monday:

Any early brightness quickly replaced by a band of rain which will spread eastwards throughput the morning. The rain will be heavy at times, give a rather wet afternoon. Breezy. Maximum temperature 19 °C.

Outlook for Tuesday to Thursday:

Rather changeable throughout the period with a mix of sunshine and showers interspersed with a longer spell of rain on Wednesday. Temperatures near average for early June.

Updated: 04:00 (UTC+1) on Sun 31 May 2026

UK long range weather forecast

Changeable early in this period with Atlantic frontal systems moving across the UK. These will bring showers or longer spells of rain at times, with wettest conditions in the northwest, driest in the southeast. Strong winds may affect parts of the UK at times, especially the northwest. Later in the period, higher pressure and drier weather may begin to become more prevalent, especially in the south. Temperatures are likely to be near normal overall.

Updated: 13:00 (UTC+1) on Sun 31 May 2026

Fine and dry across many areas at first with high pressure the dominate pattern across the UK. Winds will mostly be light with temperatures probably above normal. Later, low pressure will probably begin to have more of an influence, especially across the south where heavy showers and thunderstorms become more probable. It may also become hot in parts of the south.

Updated: 14:00 (UTC+1) on Sun 31 May 2026

Cadair Idris (Gwynedd) weather

Find a forecast

Forecast days

Sun 31 May

Sun 31 May

Mon 1 Jun

Mon 1 Jun

Tue 2 Jun

Tue 2 Jun

Wed 3 Jun

Wed 3 Jun

Thu 4 Jun

Thu 4 Jun

Fri 5 Jun

Fri 5 Jun

Sat 6 Jun

Sat 6 Jun

7 day forecast for Cadair Idris

Tooltip header

Heatwave to give way to fresher, more changeable conditions

UK video forecast

Wales weather forecast

Headline:

Today:

Tonight:

Monday:

Outlook for Tuesday to Thursday:

UK long range weather forecast

Nearest forecasts

More from the Met Office

Causes of climate change

Satellite image of the month - 2016

Our history

Earth spiral mobile DIY activity

Weather forecasting in online news

Tropical cyclone warnings

Cadair Idris (Gwynedd) weather

Find a forecast

Forecast days

Sun 31 May

Sun 31 May

Mon 1 Jun

Mon 1 Jun

Tue 2 Jun

Tue 2 Jun

Wed 3 Jun

Wed 3 Jun

Thu 4 Jun

Thu 4 Jun

Fri 5 Jun

Fri 5 Jun

Sat 6 Jun

Sat 6 Jun

7 day forecast for Cadair Idris

Heatwave to give way to fresher, more changeable conditions

UK video forecast

Wales weather forecast

Sunday 31 May - Thursday 4 Jun

Headline:

Today:

Tonight:

Monday:

Outlook for Tuesday to Thursday:

UK long range weather forecast

Friday 5 Jun - Sunday 14 Jun

Monday 15 Jun - Monday 29 Jun

Nearest forecasts

More from the Met Office

Causes of climate change

Satellite image of the month - 2016

Our history

Earth spiral mobile DIY activity

Weather forecasting in online news

Tropical cyclone warnings