Mountain weather
Eryri / Snowdonia
Confidence
High overall but lowering for temperatures early next week.
-
This eveningSunrise:Sunset:
-
Fri 7 AugSunrise:Sunset:
-
Sat 8 AugSunrise:Sunset:
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Further outlook
This evening forecast
A dry end to the day but often cloudy, with clear spells developing overnight.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Poor Visibility
Mountain weather forecast
A mostly dry day with sunny spells.
|
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 |
30%
|
30%
|
20%
|
20%
|
10%
|
10%
|
10%
|
10%
|
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 17mph knots
SW
17mph |
SW 12mph knots
SW
12mph |
SW 9mph knots
SW
9mph |
W 12mph knots
W
12mph |
SW 14mph knots
SW
14mph |
SW 13mph knots
SW
13mph |
SW 11mph knots
SW
11mph |
S 9mph knots
S
9mph |
|
600m
|
600m | S 11mph knots
S
11mph |
SW 8mph knots
SW
8mph |
SW 7mph knots
SW
7mph |
W 10mph knots
W
10mph |
SW 12mph knots
SW
12mph |
SW 11mph knots
SW
11mph |
SW 10mph knots
SW
10mph |
S 10mph knots
S
10mph |
|
300m
|
300m | S 6mph knots
S
6mph |
SW 4mph knots
SW
4mph |
SW 3mph knots
SW
3mph |
W 7mph knots
W
7mph |
W 10mph knots
W
10mph |
SW 9mph knots
SW
9mph |
SW 9mph knots
SW
9mph |
S 7mph knots
S
7mph |
|
Valley
|
Valley | S 6mph knots
S
6mph |
SW 4mph knots
SW
4mph |
SW 3mph knots
SW
3mph |
W 7mph knots
W
7mph |
W 10mph knots
W
10mph |
SW 9mph knots
SW
9mph |
SW 8mph knots
SW
8mph |
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 | 22mph | 14mph | 12mph | 17mph | 19mph | 18mph | 15mph | 15mph |
|
600m
|
600m | 14mph | 10mph | 9mph | 15mph | 17mph | 16mph | 15mph | 16mph |
|
300m
|
300m | 13mph | 9mph | 5mph | 12mph | 16mph | 14mph | 14mph | 15mph |
|
Valley
|
Valley | 14mph | 10mph | 5mph | 12mph | 16mph | 14mph | 13mph | 16mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 9 degrees Celsius 9°C |
|
600m
|
600m | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 12 degrees Celsius 12°C | 10 degrees Celsius 10°C |
|
300m
|
300m | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 16 degrees Celsius 16°C | 16 degrees Celsius 16°C | 15 degrees Celsius 15°C | 13 degrees Celsius 13°C |
|
Valley
|
Valley | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 16 degrees Celsius 16°C | 17 degrees Celsius 17°C | 18 degrees Celsius 18°C | 17 degrees Celsius 17°C | 14 degrees Celsius 14°C |
| Freezing Level | Freezing Level |
2100m
|
2100m
|
2000m
|
1900m
|
2000m
|
2000m
|
1900m
|
2000m
|
|
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 | 6 degrees Celsius 6°C | 6 degrees Celsius 6°C | 7 degrees Celsius 7°C | 8 degrees Celsius 8°C | 8 degrees Celsius 8°C | 6 degrees Celsius 6°C |
|
600m
|
600m | 8 degrees Celsius 8°C | 9 degrees Celsius 9°C | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C |
|
300m
|
300m | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 11 degrees Celsius 11°C |
|
Valley
|
Valley | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 16 degrees Celsius 16°C | 13 degrees Celsius 13°C |
| Freezing Level | Freezing Level |
2100m
|
2100m
|
2000m
|
1900m
|
2000m
|
2000m
|
1900m
|
2000m
|
Additional weather information
Meteorologist's view
A good day for hiking, with generally favourable conditions. However, UV levels will remain high, so appropriate sun protection is recommended.
Weather
A dry and fine day ahead with a better prospect of lengthier sunny spells. A low chance of the odd light shower in the morning.
Chance of cloud-free hill tops
80%
Low cloud and visibility
Early mist possible in valleys otherwise cloud above summits with very good visibilities.
Ground conditions
Please see - https://yrwyddfa.live/
Mountain weather information
Weather
A fine and settled day with sunny spells.
Chance of cloud-free hill tops
80%
Maximum wind speed expected
20 mph
Temperature
- At 800m Plus 10 Celsius rising to plus 17 Celsius.
- Valley Plus 4 Celsius rising to plus 22 Celsius,
- Freezing level Above summits.
Low cloud and visibility
Early mist possible in valleys otherwise cloud above summits with very good visibilities.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Sun 9 Aug
A mostly fine day ahead though some showers. Moderate westerly winds.
Mon 10 Aug
A dry day ahead with sunny spells. There may be cloudier periods at times too. Moderate westerly winds.
Tue 11 Aug
A dry day with lots of sunshine. Light to moderate southerly winds.
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.