Mountain weather
Eryri / Snowdonia
Confidence
High confidence.
-
This eveningSunrise:Sunset:
-
Sun 31 MaySunrise:Sunset:
-
Mon 1 JunSunrise:Sunset:
-
Further outlook
This evening forecast
Cloudy this evening with outbreaks of rain, turning heavy at times. Cloud bases low enough to shroud hill tops after sunset.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Heavy Persistent Rain
Strong Sunlight
Mountain weather forecast
Cloudy with outbreaks of rain at times on Sunday.
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
Weather
(at 800m)
|
Weather symbols | ||||||||
|
Chance of
precipitation (at 800m)
|
Chance of precipitation |
80%
|
80%
|
60%
|
30%
|
30%
|
30%
|
30%
|
30%
|
Wind direction and speed
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | SW 29mph knots
SW
29mph |
SW 21mph knots
SW
21mph |
W 19mph knots
W
19mph |
W 18mph knots
W
18mph |
W 18mph knots
W
18mph |
W 18mph knots
W
18mph |
SW 20mph knots
SW
20mph |
SW 21mph knots
SW
21mph |
|
600m
|
600m | SW 19mph knots
SW
19mph |
SW 14mph knots
SW
14mph |
W 14mph knots
W
14mph |
W 15mph knots
W
15mph |
W 15mph knots
W
15mph |
SW 14mph knots
SW
14mph |
SW 14mph knots
SW
14mph |
S 13mph knots
S
13mph |
|
300m
|
300m | S 12mph knots
S
12mph |
SW 10mph knots
SW
10mph |
W 9mph knots
W
9mph |
W 10mph knots
W
10mph |
W 11mph knots
W
11mph |
W 11mph knots
W
11mph |
SW 9mph knots
SW
9mph |
S 8mph knots
S
8mph |
|
Valley
|
Valley | S 12mph knots
S
12mph |
SW 9mph knots
SW
9mph |
W 9mph knots
W
9mph |
W 10mph knots
W
10mph |
W 11mph knots
W
11mph |
W 10mph knots
W
10mph |
SW 9mph knots
SW
9mph |
S 7mph knots
S
7mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 35mph | 25mph | 24mph | 23mph | 23mph | 24mph | 25mph | 25mph |
|
600m
|
600m | 24mph | 18mph | 18mph | 19mph | 20mph | 19mph | 19mph | 17mph |
|
300m
|
300m | 20mph | 16mph | 16mph | 16mph | 17mph | 17mph | 17mph | 14mph |
|
Valley
|
Valley | 20mph | 16mph | 16mph | 16mph | 16mph | 17mph | 16mph | 13mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C |
|
600m
|
600m | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 11 degrees Celsius 11°C | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C |
|
300m
|
300m | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 12 degrees Celsius 12°C |
|
Valley
|
Valley | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 15 degrees Celsius 15°C | 14 degrees Celsius 14°C |
| Freezing Level | Freezing Level |
2400m
|
2200m
|
2100m
|
2000m
|
1900m
|
2100m
|
2300m
|
2200m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 5 degrees Celsius 5°C | 5 degrees Celsius 5°C | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C | 5 degrees Celsius 5°C | 4 degrees Celsius 4°C | 4 degrees Celsius 4°C |
|
600m
|
600m | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C | 7 degrees Celsius 7°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C |
|
300m
|
300m | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 11 degrees Celsius 11°C |
|
Valley
|
Valley | 12 degrees Celsius 12°C | 11 degrees Celsius 11°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 13 degrees Celsius 13°C |
| Freezing Level | Freezing Level |
2400m
|
2200m
|
2100m
|
2000m
|
1900m
|
2100m
|
2300m
|
2200m
|
Additional weather information
Meteorologist's view
Surfaces will be slippery after overnight rain and in heavy showers, appropriate footwear is advised. Although skies will be largely cloudy, UV levels remaining moderate so sun protection is also advisable.
Weather
Low cloud will shroud the hills at first with outbreaks of rain, before lifting through the morning. Scattered showers will develop through the morning and into the afternoon. Sunny spells likely between showers. Showers then easing in the evening with lowering cloud, giving fog over hill tops.
Chance of cloud-free hill tops
30% during overnight rain, increasing to 100% as cloud bases lift through the morning. 20% in the evening as cloud bases lower to 400m.
Low cloud and visibility
Poor visibility in heavy rain, drizzle and fog. Visibility improving to good during daylight hours.
Ground conditions
Please see - https://yrwyddfa.live/
Mountain weather information
Weather
Heavy rain lingering through most of the day with a chance of thundery downpours later in the day.
Chance of cloud-free hill tops
40% as cloud bases lower during periods of heavy rain.
Maximum wind speed expected
Southwesterly 20mph gusting 30-35mph.
Temperature
- At 800m Plus 8 Celsius.
- Valley Plus 8 Celsius, rising to plus 17 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Cloud bases lowering to 500m at times during spells of heavy rain, otherwise above summits. Poor visibility throughout most of the day in the rain.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Tue 2 Jun
Sunshine and heavy showers with a moderate southwesterly breeze. A moderate risk of thunder in the heavy showers during the afternoon.
Wed 3 Jun
A band of rain moving through during the morning, followed by some heavy showers in the afternoon.
Thu 4 Jun
Sunny spells and scattered showers, heavy at times. A fresh westerly wind
Summit specific forecast
The Eryri (Snowdonia) mountains are made up of 90 mountain peaks including the tallest mountain in Wales, Yr Wyddfa (Snowdon), standing at 1,085 metres.