Includes all summits in the the northern half of Wales from Pumlumon northwards.
Eryri / Snowdonia National Park
Monday 30th June 2025
Last updated
Sun 29th Jun 25 at
4:00PM
Very warm and humid. Gale force southerly winds for NW Scotland at first will ease, but gusty winds strengthen elsewhere. As a front encroaches from the west across the Highlands, bursts of rain will merge into a swathe of more extensive heavy rain, possible thunder. Dry with sunshine for England and Wales, small risk local showers.
Increasingly breezy. Very warm; sunny, some coastal mist.
Southerly 20 to 30mph, strongest Snowdon/Yr Wyddfa range, gusty in places; later afternoon southwesterly 35mph for a time.
Affecting comfortable walking and balance on some exposed ridges, becoming strenuous for periods higher terrain.
Very likely dry
Some fine drizzle possible near coast if in cloud early morning. Most likely all day dry, but later afternoon, small chance of a very isolated burst of rain forming, mainly over mid to north-east Wales.
Little or none away from coastal slopes
Most mountains clear apart from occasional early patches in west. Very low cloud / fog near to the coast particularly morning, tending to thin and break up, but patches may linger.
80%
Sunshine and some thin high cloud. Visibility very good, but some early haze or mist, which may linger near Llyn peninsula.
15C where in cloud, up to 19C inland areas; very humid. Starting to drop into the night.
Above the summits
Eryri / Snowdonia National Park
Tuesday 1st July 2025
Last updated
Sun 29th Jun 25 at
4:00PM
West or southwesterly 10 to 15mph or less.
Small
Risk bursts of rain
Occasional rain, local showery bursts, mostly well inland later in the day, chance isolated thunder.
Fairly extensive, some very low cloud
Covering the hills fairly widely in the morning, lowest toward coasts, possible fog to mid-slopes or lower for a time. Tending to lift and break gradually, but cloud banks may linger all day.
40%
Fairly cloudy, glimpses of sun. Visibility good, slight haze.
10 to 12C, still quite humid.
Above the summits
Eryri / Snowdonia National Park
Wednesday 2nd July 2025
Last updated
Sun 29th Jun 25 at
4:00PM
Northerly or variable 15 to 20mph.
Fairly small
Possible patchy rain or showers
Risk occasional rain, may be just spots from high cloud. Scattered showers mostly inland and east, mainly afternoon.
Covering tops for a time
Banks of cloud drifting over higher slopes, particularly northern areas in the morning. Lifting to tops and may largely clear above the summits.
60%
Areas of high cloud, some sun breaking through, mainly near to coast afternoon. Visibility very good.
9 or 10C.
Above the summits
Cooler across Scotland by Monday night as a cold front advances eastwards. Risk of scattered thundery showers Tuesday-Wednesday, mostly eastern areas. High pressure then builds to the south, whilst a humid southwesterly returns to bring spells of rain and low cloud to western Scotland. The second week of July looks cooler for all with sunshine and showers.