Mountain weather
Eryri / Snowdonia
Confidence
High confidence generally, low for shower detail on Saturday.
-
This eveningSunrise:Sunset:
-
Sat 8 AugSunrise:Sunset:
-
Sun 9 AugSunrise:Sunset:
-
Further outlook
This evening forecast
Fine and settled this evening with partly cloudy skies.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Mountain weather forecast
Largely dry and cloudy, just a small chance of a shower.
|
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 |
<5%
|
<5%
|
10%
|
20%
|
20%
|
20%
|
<5%
|
<5%
|
Wind direction and speed
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | S 10mph knots
S
10mph |
S 17mph knots
S
17mph |
S 19mph knots
S
19mph |
S 19mph knots
S
19mph |
SW 17mph knots
SW
17mph |
SW 18mph knots
SW
18mph |
SW 19mph knots
SW
19mph |
SW 20mph knots
SW
20mph |
|
600m
|
600m | S 11mph knots
S
11mph |
S 13mph knots
S
13mph |
S 13mph knots
S
13mph |
S 15mph knots
S
15mph |
SW 17mph knots
SW
17mph |
SW 18mph knots
SW
18mph |
SW 15mph knots
SW
15mph |
S 14mph knots
S
14mph |
|
300m
|
300m | S 5mph knots
S
5mph |
SE 6mph knots
SE
6mph |
SE 5mph knots
SE
5mph |
S 9mph knots
S
9mph |
S 11mph knots
S
11mph |
SW 11mph knots
SW
11mph |
SW 9mph knots
SW
9mph |
S 6mph knots
S
6mph |
|
Valley
|
Valley | S 5mph knots
S
5mph |
SE 6mph knots
SE
6mph |
SE 5mph knots
SE
5mph |
S 9mph knots
S
9mph |
SW 11mph knots
SW
11mph |
SW 11mph knots
SW
11mph |
SW 9mph knots
SW
9mph |
S 6mph knots
S
6mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 11mph | 20mph | 22mph | 24mph | 22mph | 23mph | 23mph | 24mph |
|
600m
|
600m | 14mph | 16mph | 16mph | 20mph | 22mph | 23mph | 19mph | 17mph |
|
300m
|
300m | 12mph | 12mph | 12mph | 15mph | 17mph | 18mph | 14mph | 14mph |
|
Valley
|
Valley | 12mph | 12mph | 12mph | 14mph | 17mph | 18mph | 14mph | 14mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 11 degrees Celsius 11°C | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 13 degrees Celsius 13°C | 12 degrees Celsius 12°C |
|
600m
|
600m | 12 degrees Celsius 12°C | 11 degrees Celsius 11°C | 11 degrees Celsius 11°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 16 degrees Celsius 16°C | 15 degrees Celsius 15°C | 14 degrees Celsius 14°C |
|
300m
|
300m | 13 degrees Celsius 13°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 16 degrees Celsius 16°C | 17 degrees Celsius 17°C | 19 degrees Celsius 19°C | 18 degrees Celsius 18°C | 15 degrees Celsius 15°C |
|
Valley
|
Valley | 14 degrees Celsius 14°C | 13 degrees Celsius 13°C | 14 degrees Celsius 14°C | 17 degrees Celsius 17°C | 19 degrees Celsius 19°C | 20 degrees Celsius 20°C | 19 degrees Celsius 19°C | 16 degrees Celsius 16°C |
| Freezing Level | Freezing Level |
2300m
|
2300m
|
2300m
|
2200m
|
2400m
|
3000m
|
3200m
|
3300m
|
|
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 | 6 degrees Celsius 6°C | 6 degrees Celsius 6°C | 7 degrees Celsius 7°C | 9 degrees Celsius 9°C | 10 degrees Celsius 10°C | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C |
|
600m
|
600m | 10 degrees Celsius 10°C | 8 degrees Celsius 8°C | 9 degrees Celsius 9°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 |
|
300m
|
300m | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 12 degrees Celsius 12°C | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 16 degrees Celsius 16°C | 14 degrees Celsius 14°C |
|
Valley
|
Valley | 13 degrees Celsius 13°C | 12 degrees Celsius 12°C | 13 degrees Celsius 13°C | 16 degrees Celsius 16°C | 17 degrees Celsius 17°C | 18 degrees Celsius 18°C | 17 degrees Celsius 17°C | 15 degrees Celsius 15°C |
| Freezing Level | Freezing Level |
2300m
|
2300m
|
2300m
|
2200m
|
2400m
|
3000m
|
3200m
|
3300m
|
Additional weather information
Meteorologist's view
Good walking conditions, a light waterproof may be needed for any showers.
Weather
Largely dry and cloudy, with some late afternoon sunshine. A small chance of a light shower thought the morning and afternoon.
Chance of cloud-free hill tops
100%
Low cloud and visibility
Good visibility with cloud bases well above tops.
Ground conditions
Please see - https://yrwyddfa.live/
Mountain weather information
Weather
Dry and warm on Sunday with prolonged sunny spells and light winds.
Chance of cloud-free hill tops
100%
Maximum wind speed expected
Variable 5-10mph.
Temperature
- At 800m Plus 10 Celsius, rising to plus 16 Celsius.
- Valley Plus 5 Celsius, becoming plus Plus 22 Celsius
- Freezing level Above tops
Low cloud and visibility
Good visibilities with cloud bases above mountain tops.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Mon 10 Aug
A dry day ahead with sunny spells. There may be cloudier periods at times too. Moderate northwesterly winds.
Tue 11 Aug
A dry day with lots of sunshine. Light to moderate southerly winds.
Wed 12 Aug
Dry and sunny, becoming rather hot. 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.