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Not available Not available Not available Not available Not available Not available Not available 2200 on Sat 20 Sep 2014 0100 on Sun 21 Sep 2014 0400 on Sun 21 Sep 2014 0700 on Sun 21 Sep 2014 1000 on Sun 21 Sep 2014 1300 on Sun 21 Sep 2014 1600 on Sun 21 Sep 2014 1900 on Sun 21 Sep 2014 Night-time Sun 21 Sep 2014 Daytime Mon 22 Sep 2014 Night-time Mon 22 Sep 2014 Daytime Tue 23 Sep 2014 Night-time Tue 23 Sep 2014 Daytime Wed 24 Sep 2014 Night-time Wed 24 Sep 2014
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Updated: 2057 on Sat 20 Sep 2014
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Snowdonia: forecast temperature

Saturday, 20 September 2014: dawn to dusk

Printable view Forecast issued: 1610 on Saturday, 20 September 2014

Overview for Sunday

Dry and mostly sunny throughout the day. A little patchy cloud during the afternoon, may give a little hill fog over the higher peaks.

Hazards Risk Explanation
Blizzards No Risk  
Heavy snow No Risk  
Storm force winds No Risk  
Gales No Risk  
Severe chill effect No Risk  
Persistent and extensive hill fog No Risk  
Thunderstorms No Risk  
Heavy persistent rain No Risk  
Strong Sunlight Medium Medium risk of sunburn during prolonged sunny spells.

key to hazards and forecast content

Weather summary and probability of precipitation for Sunday
Dawn to 0900 0900 to 1200 1200 to 1500 1500 to dusk


Sunny
Sunny
Sunny
Sunny
0% 0% 0% 0%

Detailed mountain weather forecast: Snowdonia

Sunday

Weather

There may be a few very isolated mist and shallow fog patches in prone valleys at first on Sunday morning, but they will soon clear to leave a dry and mostly sunny day. A little cloud may develop during the afternoon, which could give a few hill fog patches over the higher peaks.

Visibility

Poor or very poor in any isolated mist or fog patches at first, and very poor in any isolated hill fog patches in the afternoon. However, for the vast majority of the day, visibility will be very good or excellent.

Hill fog

Isolate patches in the afternoon over some of the higher peaks, above 600 m.

Maximum winds above 500m

Northeasterly 15-20 mph.

Temperature

Valleys Plus 05 rising to 19 Celsius.
900 m Plus 8 Celsius.
Freezing level Above the summits.

Monday

Weather

Another rather cold start on Monday morning, with a ground frost in places, and perhaps a few isolated mist and fog patches in prone valleys. However, the rest of the day will once again be dry and mostly sunny, with only a few patches of cloud in the afternoon, once again possible covering hills for a short time.

Visibility

Very good or excellent, although poor or very poor in any isolated fog or hill fog.

Hill fog

Isolated patches above 600m.

Maximum winds above 500m

Southeasterly 10 mph.

Temperature

Valleys Plus 4 rising to 18 Celsius.
900 m Plus 8 Celsius.
Freezing level Above the summits.

Outlook

Tuesday

A dry morning, but thickening cloudy will bring a risk of patchy rain through the afternoon. Winds will be mostly light and southwesterly at lower levels, but strong over the peaks.

Wednesday

A cloudy day on Wednesday, but generally staying dry. West to northwesterly winds will fresh to strong, particularly over the peaks.

Thursday

The rather cloudy conditions will persist through into Thursday, and there may be some patchy rain at times. Westerly winds remaining moderate or fresh, and strong at times over the peaks.

Observations

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Weather warnings for Wales

Weather forecast for Wales

The Enhanced Mountain forecast for Snowdonia has been discontinued. All forecast information for these locations can be found in the standard Mountain forecast above.

North East England West Midlands Grampian South West England Central, Tayside & Fife Northern Ireland North West England East of England Highlands & Eilean Siar Strathclyde Wales East Midlands SW Scotland, Lothian Borders London & South East England Yorkshire & Humber

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