Mountain weather
Eryri / Snowdonia
Confidence
High overall.
-
This eveningSunrise:Sunset:
-
Wed 15 JulSunrise:Sunset:
-
Thu 16 JulSunrise:Sunset:
-
Further outlook
This evening forecast
A dry and bright end to the day with plenty of late evening sunshine.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Mountain weather forecast
Plenty of dry and sunny weather once again, still feeling hot.
|
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 |
10%
|
10%
|
10%
|
10%
|
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 | E 25mph knots
E
25mph |
E 24mph knots
E
24mph |
E 18mph knots
E
18mph |
E 15mph knots
E
15mph |
E 13mph knots
E
13mph |
E 12mph knots
E
12mph |
NE 17mph knots
NE
17mph |
NE 16mph knots
NE
16mph |
|
600m
|
600m | E 16mph knots
E
16mph |
SE 16mph knots
SE
16mph |
E 13mph knots
E
13mph |
E 10mph knots
E
10mph |
E 10mph knots
E
10mph |
E 9mph knots
E
9mph |
NE 10mph knots
NE
10mph |
E 8mph knots
E
8mph |
|
300m
|
300m | E 12mph knots
E
12mph |
SE 11mph knots
SE
11mph |
SE 9mph knots
SE
9mph |
E 7mph knots
E
7mph |
E 8mph knots
E
8mph |
E 7mph knots
E
7mph |
NE 7mph knots
NE
7mph |
E 5mph knots
E
5mph |
|
Valley
|
Valley | SE 12mph knots
SE
12mph |
SE 11mph knots
SE
11mph |
SE 8mph knots
SE
8mph |
E 7mph knots
E
7mph |
E 8mph knots
E
8mph |
E 7mph knots
E
7mph |
NE 7mph knots
NE
7mph |
E 4mph knots
E
4mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 32mph | 30mph | 24mph | 20mph | 18mph | 17mph | 22mph | 20mph |
|
600m
|
600m | 27mph | 25mph | 21mph | 15mph | 15mph | 14mph | 15mph | 13mph |
|
300m
|
300m | 24mph | 24mph | 19mph | 12mph | 13mph | 12mph | 13mph | 9mph |
|
Valley
|
Valley | 24mph | 22mph | 18mph | 12mph | 14mph | 13mph | 14mph | 8mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 14 degrees Celsius 14°C | 14 degrees Celsius 14°C | 15 degrees Celsius 15°C | 15 degrees Celsius 15°C | 17 degrees Celsius 17°C | 19 degrees Celsius 19°C | 18 degrees Celsius 18°C | 16 degrees Celsius 16°C |
|
600m
|
600m | 17 degrees Celsius 17°C | 17 degrees Celsius 17°C | 17 degrees Celsius 17°C | 18 degrees Celsius 18°C | 20 degrees Celsius 20°C | 22 degrees Celsius 22°C | 20 degrees Celsius 20°C | 17 degrees Celsius 17°C |
|
300m
|
300m | 18 degrees Celsius 18°C | 18 degrees Celsius 18°C | 18 degrees Celsius 18°C | 20 degrees Celsius 20°C | 23 degrees Celsius 23°C | 24 degrees Celsius 24°C | 22 degrees Celsius 22°C | 19 degrees Celsius 19°C |
|
Valley
|
Valley | 19 degrees Celsius 19°C | 18 degrees Celsius 18°C | 19 degrees Celsius 19°C | 22 degrees Celsius 22°C | 24 degrees Celsius 24°C | 25 degrees Celsius 25°C | 23 degrees Celsius 23°C | 20 degrees Celsius 20°C |
| Freezing Level | Freezing Level |
2700m
|
2600m
|
2500m
|
2500m
|
2800m
|
2800m
|
2700m
|
2600m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
900m
|
900m | 10 degrees Celsius 10°C | 10 degrees Celsius 10°C | 11 degrees Celsius 11°C | 12 degrees Celsius 12°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 14 degrees Celsius 14°C | 12 degrees Celsius 12°C |
|
600m
|
600m | 14 degrees Celsius 14°C | 13 degrees Celsius 13°C | 15 degrees Celsius 15°C | 16 degrees Celsius 16°C | 18 degrees Celsius 18°C | 20 degrees Celsius 20°C | 18 degrees Celsius 18°C | 16 degrees Celsius 16°C |
|
300m
|
300m | 16 degrees Celsius 16°C | 15 degrees Celsius 15°C | 17 degrees Celsius 17°C | 20 degrees Celsius 20°C | 22 degrees Celsius 22°C | 23 degrees Celsius 23°C | 22 degrees Celsius 22°C | 19 degrees Celsius 19°C |
|
Valley
|
Valley | 17 degrees Celsius 17°C | 16 degrees Celsius 16°C | 17 degrees Celsius 17°C | 21 degrees Celsius 21°C | 23 degrees Celsius 23°C | 24 degrees Celsius 24°C | 22 degrees Celsius 22°C | 20 degrees Celsius 20°C |
| Freezing Level | Freezing Level |
2700m
|
2600m
|
2500m
|
2500m
|
2800m
|
2800m
|
2700m
|
2600m
|
Additional weather information
Meteorologist's view
A brilliant day to be in the national park. However, applying sunscreen regularly is advised as well as wearing a hat and sunglasses because UV levels will be very high. High temperatures, especially during the afternoon, may lead to heat exhaustion. Keep hydrated by drinking plenty of water, and taking regular breaks from strenuous activity.
Weather
A dry and bright day with plenty of lengthy sunshine. A moderate easterly wind is expected to persist. .
Chance of cloud-free hill tops
>95%.
Low cloud and visibility
No low cloud or visibility issues expected, excellent visibilities with views of distant peaks possible.
Ground conditions
Please see - https://yrwyddfa.live/
Mountain weather information
Weather
Another dry and bright day with plenty of strong sunshine. Gentle to moderate easterly winds gradually becoming northerly.
Chance of cloud-free hill tops
>95%.
Maximum wind speed expected
Northeasterly 15-20 mph.
Temperature
- At 800m plus 13 Celsius rising to plus 20 Celsius.
- Valley plus 18 Celsius rising to plus 26 Celsius.
- Freezing level above summits.
Low cloud and visibility
No low cloud or visibility issues expected, excellent visibilities with views of distant peaks possible.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Fri 17 Jul
Similar to Thursday with plenty of dry and bright weather around although more in the way of patchy cloud through the morning. Light and variable winds mainly from a northerly direction. Freezing level above summits.
Sat 18 Jul
Another day of dry and bright weather with some higher cloud turning sunshine hazy at times. Temperatures dipping slightly. Moderate northerly breeze. Freezing level above summits.
Sun 19 Jul
Another dry and bright day with some fair weather cloud around through the afternoon. Moderate northerly breeze persisting. Freezing level above summits.
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.