Includes all summits in the the northern half of Wales from Pumlumon northwards.
Eryri / Snowdonia National Park
Wednesday 18th June 2025
Last updated
Tue 17th Jun 25 at
4:00PM
West to southwest breezes will feel cool over Scottish mountains, strongest toward the north. Cloud will be drawn onto western hills, some drizzly rain or brief showers. Higher cloud eastwards, often above tops. England & Wales dry and mostly sunny, warmest south.
Patchy cloud banks clear, then mostly sunny; light winds.
Westerly 10 to 15mph.
Small
No rain
Early cloud dispersing
Patchy cloud banks in morning, some fog into valleys inland too, high tops likely above cloud from dawn. Patches tending to lift upslope, then above hills or largely dispersing. An odd fog patch may linger near Llyn peninsula.
80% rising above 90%
Mostly sunny, some fair-weather cloud. Visibility very good, but misty some lower slopes inland at first.
10C rising to 14C.
Above the summits
Eryri / Snowdonia National Park
Thursday 19th June 2025
Last updated
Tue 17th Jun 25 at
4:00PM
Southeasterly, 10 to 15mph, possibly 20mph west coastal slopes.
Mostly small
No rain expected
Not expected
Above 90%
Mostly sunny. Visibility excellent, some haze may develop.
Rising from 14 to 18C, then only marginal drop into evening and night.
Above the summits
Eryri / Snowdonia National Park
Friday 20th June 2025
Last updated
Tue 17th Jun 25 at
4:00PM
Southeasterly 15 to 25mph, gusty in places around higher slopes and ridges.
Fairly small, but starting to affect comfortable walking and balance some exposed higher areas.
Rain not expected
None expected
Above 90%
Sunshine and high cloud, which may sometimes obscure the sun. Visibility good, some haze.
16C from dawn, rising to 18C.
Above the summits
High pressure centred to the east draws very warm air in on southerly breezes through the rest of this week. Dry conditions, sunshine and fair-weather cloud, some patchy coastal cloud at times in west, locally gustier winds too. A more uncertain outlook into the weekend and early next week, a good deal of fine and warm weather possible, but risk of some rain or showery bursts at times.