Mountain weather
Eryri / Snowdonia
Confidence
High for a settled weekend with winds gradually easing. Moderate to low in terms of rain and shower details next week.
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Sun 14 JunSunrise:Sunset:
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Mon 15 JunSunrise:Sunset:
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Further outlook
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Mountain weather forecast
Mostly cloudy and dry, low chance of rain.
|
Time
|
Time |
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%
|
30%
|
10%
|
10%
|
Wind direction and speed
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
900m
|
900m | N 13mph knots
N
13mph |
N 11mph knots
N
11mph |
N 7mph knots
N
7mph |
N 7mph knots
N
7mph |
E 8mph knots
E
8mph |
E 11mph knots
E
11mph |
|
600m
|
600m | N 10mph knots
N
10mph |
N 10mph knots
N
10mph |
N 7mph knots
N
7mph |
N 7mph knots
N
7mph |
NE 6mph knots
NE
6mph |
E 10mph knots
E
10mph |
|
300m
|
300m | N 5mph knots
N
5mph |
N 6mph knots
N
6mph |
N 5mph knots
N
5mph |
N 6mph knots
N
6mph |
NE 5mph knots
NE
5mph |
E 8mph knots
E
8mph |
|
Valley
|
Valley | N 6mph knots
N
6mph |
N 7mph knots
N
7mph |
N 5mph knots
N
5mph |
N 6mph knots
N
6mph |
N 5mph knots
N
5mph |
E 7mph knots
E
7mph |
Wind gust
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
900m
|
900m | 17mph | 16mph | 11mph | 11mph | 11mph | 15mph |
|
600m
|
600m | 13mph | 14mph | 11mph | 11mph | 10mph | 14mph |
|
300m
|
300m | 8mph | 10mph | 8mph | 10mph | 9mph | 14mph |
|
Valley
|
Valley | 10mph | 11mph | 9mph | 10mph | 9mph | 12mph |
|
Time
|
Time |
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|
|
900m
|
900m | ||||||
|
600m
|
600m | ||||||
|
300m
|
300m | ||||||
|
Valley
|
Valley | ||||||
| Freezing Level | Freezing Level |
2700m
|
2700m
|
2700m
|
2700m
|
2700m
|
2600m
|
Additional weather information
Meteorologist's view
Generally fine hiking conditions though not completely dry. UV high in any sunshine with sunscreen advised despite the cloud cover.
Weather
Mostly cloudy with cloud thick enough for the odd spot of rain over the hills during the afternoon. Skies brightening up during the evening to give sunny spells and clear skies into the night.
Chance of cloud-free hill tops
60% rising to 80% by the afternoon.
Low cloud and visibility
Cloud around 500-600m through the morning, rising to mostly above summits by the afternoon. Generally very good visibility with excellent air clarity and distant views of far-away mountains and landmarks but occasionally very poor in cloud/hill fog.
Ground conditions
Please see - https://yrwyddfa.live/
Mountain weather information
Weather
Most likely remaining dry and warm with a mixture of cloud and bright or sunny spells. A very low chance of a shower or thunderstorm later in the day. Moderate to fresh easterly winds on the summits.
Chance of cloud-free hill tops
80%
Maximum wind speed expected
Southeasterly 25-30 mph.
Temperature
- At 800m 7 Celsius rising to 17 Celsius.
- Valley 13 Celsius rising to plus 21 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Patches banks of cloud hovering around summits, but mainly lifting to above. Generally very good visibility, poor in any thunderstorms that may develop.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Tue 16 Jun
Uncertainty in the details but a cooler day is likely with a greater likelihood of hill fog and scattered showers. A small chance of more general rain, perhaps heavy, developing in places. Winds becoming moderate to fresh southerly or southwesterly.
Wed 17 Jun
Often cloudy with hill fog and showery rain. Feeling humid. Moderate southwesterly.
Thu 18 Jun
Another cloudy day with drizzle. Staying humid.
Mountain weather information
Tue 16 Jun
Uncertainty in the details but a cooler day is likely with a greater likelihood of hill fog and scattered showers. A small chance of more general rain, perhaps heavy, developing in places. Winds becoming moderate to fresh southerly or southwesterly.
Wed 17 Jun
Often cloudy with hill fog and showery rain. Feeling humid. Moderate southwesterly.
Thu 18 Jun
Another cloudy day with drizzle. Staying humid.
Summit specific forecast
Mountain summits
Other points of interest
Cluster of multiple stations