Detailed mountain weather forecast - Snowdonia

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Updated: 0337 on Sun 26 May 2013

Overview for Sunday

Sunday will be another fine and dry day with some good spells of sunshine developing, particularly through the afternoon. However, some low cloud will affect western hills through the morning.

Hazards

Persistent extensive hill fog: Some low cloud will shroud some hills through the early morning period, particularly coastal hills [Low risk]

Strong sunlight: Given the prolonged sunny periods and the time of year, risk of sunburn during the day. [High risk]

Weather summary

Dawn to 0900
Medium-Level Cloud
0% chance of precipitation

0900 to 1200
Sunny Intervals
0% chance of precipitation

1200 to 1500
Sunny Intervals
0% chance of precipitation

1500 to Dusk
Sunny
0% chance of precipitation

Weather

Early valley mist and low cloud will clear to leave another dry and bright day with some sunny spells developing, especially across eastern hills. However, always more in the way of cloud across western hills through the morning.

Visibility

Generally very good or excellent, but poor in any mist and very poor in hill fog through the morning.

Hill fog

Low cloud will affect some western hills through the morning resulting in extensive hill fog, especially on coastal hills. However, this should lift and disperse through the afternoon, with summits becoming cloud free.

Maximum wind speeds above 500m

Southwesterly 10-20mph.

Temperatures

Valleys - Plus 1 becoming 16 Celsius
900 m - Plus 3 becoming 6 Celsius
Freezing level - Above summits, but frosty through the valleys around dawn.