Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Today's Forecast
Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in any breeze on higher terrain.
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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
Dry and sunny
Extensive sunshine. The mountains free of cloud once any early mist patches disperse.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Bright sunshine
Beware of sunburn from bright spring sunshine, despite feeling cool in any breeze on higher terrain.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 7th April 2026
Last updated
Mon 6th Apr 26 at
3:53PM
Summary for all mountain areas
Patchy mist in some sheltered valleys at dawn, soon dissipating for sunshine and cloud-free hills, locally hazy. Mild temperatures, including to summits, particularly Wales where summits may be several degrees warmer than mid-slopes. High cloud builds, thickest north and west, some rain northwest Scotland later.
Headline for Eryri / Snowdonia National Park
Windy, gale-force gusts; sunny and warm, including summits
How windy? (On the summits)
South-southeasterly 30 to 40mph, strong gusts likely over tops and passes, as well as lower slopes to the northwest, reaching up to 50mph.
Effect of the wind on you?
Walking impeded all day, buffeting gusts often make walking arduous with balance challenges, with sudden strong gusts likely to low northwestern slopes as well.
How Wet?
Rain not expected
Cloud on the hills?
Hills clear
Patchy mist some valleys at first, this soon dissipating for clear hills.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Bright sunshine, thin high cloud slowly building, thickening and later may mostly shroud the sun. Visibility good, but some haze.
How Cold? (at 900m)
12 to 14C, possibly warmer even on the high tops due to an inversion; much cooler temperatures in the valleys at dawn.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 8th April 2026
Last updated
Mon 6th Apr 26 at
3:53PM
How windy? (On the summits)
Southwesterly 10 to 15mph, later strengthening, 25mph gusts over tops.
Effect of the wind on you?
Fairly small, but becoming blustery in exposure later in the day.
How Wet?
Rain unlikely
Most likely dry. Small chance of an isolated shower, mainly later in daytime.
Cloud on the hills?
Patchy cloud, mostly little
Mist in some valleys from dawn, possible patches of cloud around some hill slopes, largely dispersing. Some cloud banks may linger on west coastal hills.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Often sunny but some high cloud around. Visibility good, some haze.
How Cold? (at 900m)
10 to 12C, several degrees cooler in the valleys at first.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 9th April 2026
Last updated
Mon 6th Apr 26 at
3:53PM
How windy? (On the summits)
Northwesterly 30-35mph, though westerly early in the day. Sudden strong gusts probable much of the day.
Effect of the wind on you?
Strenuous walking in exposure most of the day with notable wind chill. Sudden strong gusts challenging balance at times.
How Wet?
Several hours of rain, some showers later
Patchy rain at dawn, soon setting in for several hours. Breaking afternoon, perhaps a dry spell, but then followed by showers, falling as snow above 700m.
Cloud on the hills?
Mostly high and western terrain, increasingly clear
Fairly extensive over high terrain in the morning, lowest bases in the west, to 500m during rain. Lifting and breaking afternoon, mostly above 800-900m, clear summits for periods, and trending towards clearer conditions into evening.
Chance of cloud free summits?
Rising to 40%, 60% by evening
Sunshine and air clarity?
Mostly cloud early with poor visibility in rain. Sunshine breaking out afternoon with very good visibility, best in the east.
How Cold? (at 900m)
3C or milder from dawn, cooling to 0C. Feeling like -10C in direct wind.
Freezing Level
Above the summits at dawn, lowering to the summits with time, reaching 800-900m around evening.
Planning Outlook
Variable temperature in the near term: warm on Wednesday for England & Wales at least, becoming cooler over western Scotland as a cold front sweeps eastward; more widely cooler Thursday with freezing temperatures on high terrain and snow showers; milder by Friday with some sun in England and Wales, settling on near-average temperatures over the weekend. A changeable mix of weather during this period with some rain and showers with snow or hail on the hills, and often windy late week into the weekend in Scotland. More settled England and Wales but a few windy, wet spells will affect these areas too. Into the following week, first indications of high pressure building, winds shifted easterly brining some rain to eastern areas but often sunny with lighter wind and near-average temperatures.