Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Monday's Forecast
Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
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Moderate breeze, locally gusty
A noticeable breeze, feeling cool where exposed on tops. Locally may be gusty, but unlikely to affect walking progress. 15-25mph.
Patchwork of cloud and sun
Dry most or all day. A mix of cloud and sunshine. Occasional cloud banks drifting over higher slopes, lifting above the tops.
Clear
Excellent or superb visibility, no navigation issues.
Chilly
Air temperature typically 0 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
Viewing Forecast For
Eryri / Snowdonia National Park
Monday 6th April 2026
Last updated
Sun 5th Apr 26 at
4:28PM
Summary for all mountain areas
Gusty southerly winds, strongest on west coastal mountains in Scotland. A chilly start with frost, notably chilly at first in the Highlands, gradually warming up to rise above freezing later to all tops. Generally dry, with sun and a veil of high cloud, but most hills clear. A little rain may graze western Scotland later.
Headline for Eryri / Snowdonia National Park
Gusty wind. Dry with sun, hills clear.
How windy? (On the summits)
Southerly 20 to 30mph, strongest on mountains nearest west coast.
Effect of the wind on you?
Affecting ease of walking on some exposed terrain, gusty in places around higher western tops.
How Wet?
Rain unlikely
Very likely dry. Low chance of odd spots from thicker high cloud, mainly in west up to middle of day.
Cloud on the hills?
Mostly little
Patchy cloud over some western slopes for a time in the morning, but lifting and clearing.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Sunshine and a veil of high cloud. Visibility very good, slight haze may develop.
How Cold? (at 900m)
0 or -1C from dawn, rising to 4C afternoon. Feeling like -7C directly in wind early in day, then -2C afternoon.
Freezing Level
800-900m at first, plus slight frost some valleys around dawn. Rising above freezing to highest tops by noon.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 7th April 2026
Last updated
Sun 5th Apr 26 at
4:28PM
How windy? (On the summits)
Southeasterly 25 to 40mph, strongest gusts likely on some downslopes to northwest and through passes.
Effect of the wind on you?
Variable, in places fairly small, but sudden buffeting gusts affect comfortable walking and balance, not just on tops.
How Wet?
Rain not expected
Cloud on the hills?
Hills clear
Patchy mist some valleys at first. The hills very likely clear all day.
Chance of cloud free summits?
Above 90%
Sunshine and air clarity?
Sunshine and thin high cloud, gradually tending to thicken across the sky. Visibility good, but some haze.
How Cold? (at 900m)
10 to 13C, warm even from dawn above a marked temperature inversion.
Freezing Level
Above the summits. Possible slight frost some sheltered inland valleys at dawn.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 8th April 2026
Last updated
Sun 5th Apr 26 at
4:28PM
How windy? (On the summits)
Southwesterly 15 to 20mph, in places some gusts 25mph around high tops.
Effect of the wind on you?
Fairly small, but some occasional gusty spots feeling more blustery.
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?
80%
Sunshine and air clarity?
Fairly cloudy, some sun may develop, then later high cloud builds toward west. Visibility good, some haze.
How Cold? (at 900m)
10 to 12C, warmer than valleys at first.
Freezing Level
Above the summits.
Planning Outlook
Quite warm by Tuesday, but strong to gale force southerly winds widely, very gusty in places, not just over the highest tops; dry for many, rain encroaching into western Scotland, thawing of recent snow. Staying warm on Wednesday for England & Wales at least, becoming cooler over western Scotland, then more widely cooler Thursday; milder by Friday, then likely chilly again by weekend - cooler spells will drop sub-zero on Scottish tops. A changeable mix of weather with some rain and showers with snow or hail on the hills, and often windy late week into the weekend in Scotland, whilst England & Wales will be generally drier and less windy in the outlook.