Mountain weather

Mountain weather

Eryri / Snowdonia

Confidence

High confidence for mainly dry weather over this period.

Sunrise: Sunset:
Sunrise: Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

Severe Chill Effect
Wind significantly lowers the ‘feels-like’ temperature relative to the actual temperature, with even moderate winds significantly adding to the chilling effect. Strong winds can result in a severe and debilitating wind chill many degrees below the actual temperature. This effect will be enhanced in rain or wet snow. Without protection, prolonged exposure could result in frost nip or frostbite on exposed parts of the body and/or hypothermia.

Mountain weather forecast

Dry with long sunny spells. Cold and breezy on the tops.

Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
Weather
(at 800m)
Weather symbols Partly cloudy (night) Sunny Sunny Sunny Clear night Partly cloudy (night)
Chance of
precipitation
(at 800m)
Chance of precipitation
10%
10%
10%
10%
10%
10%

Wind direction and speed

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
900m
900m NE 27mph knots
NE
27mph
NE 28mph knots
NE
28mph
N 25mph knots
N
25mph
N 25mph knots
N
25mph
NE 23mph knots
NE
23mph
NE 19mph knots
NE
19mph
600m
600m NE 14mph knots
NE
14mph
NE 14mph knots
NE
14mph
N 19mph knots
N
19mph
N 17mph knots
N
17mph
NE 11mph knots
NE
11mph
NE 10mph knots
NE
10mph
300m
300m NE 6mph knots
NE
6mph
N 6mph knots
N
6mph
N 13mph knots
N
13mph
N 11mph knots
N
11mph
NE 4mph knots
NE
4mph
NE 4mph knots
NE
4mph
Valley
Valley NE 6mph knots
NE
6mph
N 6mph knots
N
6mph
N 13mph knots
N
13mph
N 11mph knots
N
11mph
NE 5mph knots
NE
5mph
NE 5mph knots
NE
5mph

Wind gust

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
900m
900m 31mph 33mph 32mph 31mph 29mph 24mph
600m
600m 17mph 18mph 25mph 22mph 15mph 13mph
300m
300m 15mph 16mph 23mph 20mph 13mph 11mph
Valley
Valley 15mph 16mph 23mph 20mph 14mph 12mph

Altitude above mean sea level
Time
Time
06:00
09:00
12:00
15:00
18:00
21:00
900m
900m -8 degrees Celsius -9 degrees Celsius -8 degrees Celsius -8 degrees Celsius -8 degrees Celsius -7 degrees Celsius
600m
600m -2 degrees Celsius -4 degrees Celsius -3 degrees Celsius -3 degrees Celsius -2 degrees Celsius -2 degrees Celsius
300m
300m 3 degrees Celsius 2 degrees Celsius 2 degrees Celsius 2 degrees Celsius 3 degrees Celsius 2 degrees Celsius
Valley
Valley 5 degrees Celsius 4 degrees Celsius 4 degrees Celsius 4 degrees Celsius 4 degrees Celsius 4 degrees Celsius
Freezing Level Freezing Level
800m
500m
600m
700m
600m
600m

Additional weather information

Meteorologist's view

A bright and clear day but feeling very cold on the tops in the strong winds so warm and windproof clothing will be required.

Weather

A mostly sunny morning then some cloud developing in the afternoon but still staying dry and bright. Scattered light showers will develop in the evening.

Chance of cloud-free hill tops

60% becoming close to 100% from mid-morning.

Low cloud and visibility

Excellent visibility with no cloud on the hills past mid-morning.

Ground conditions

No recent ground conditions report available.

Summit specific forecast