Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Thursday'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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Hazy, some fog banks
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Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of cloud.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra 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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Hazy, some fog banks
Visibility reduced around cloud banks, hazier on some lower slopes. Locally some improvements possible out of cloud.
Cool to mild
Air temperature 5 to 10C on higher terrain. Comfortable temperatures on lower terrain, but feeling chilly if exposed to wind higher up, especially if stationary. Pack extra layers.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 5th March 2026
Last updated
Wed 4th Mar 26 at
4:13PM
Summary for all mountain areas
A slow-moving front from the west brings rain and low cloud to western Scotland, turning to snow on tops as colder air arrives; freezing level later below 800m. Patchy rain encroaching further into Cumbria with time. Some heavier thundery bursts possible in Wales. Strong southerlies ease and turn W-NW'ly.
Headline for Eryri / Snowdonia National Park
Some weak sun early, trending cloudy with rising risk of showers
How windy? (On the summits)
Southerly 20-25mph, a gradual easing, briefly 15mph or less afternoon, then reorienting northerly into evening/night and restrengthening, up to 30-35mph.
Effect of the wind on you?
Feeling blustery in exposure in the morning, improving to fairly small effects for a least several hours. Afternoon into evening brings renewed nuisance wind, perhaps strenuous conditions in exposure as night approaches.
How Wet?
Afternoon showery rain
The morning likely dry, then a risk of showers in the afternoon which may be locally heavy, risk isolated rumble of thunder. Into evening, patchy rain lingers.
Cloud on the hills?
Clear periods, deteriorating with time
Ribbons/banks of cloud at several elevations in the morning, some ragged patches possible on lower slopes too, but soon lifting and dissipating. Highest tops likely capped most of the day, then a more extensive layer of cloud arrives from the west late in the day.
Chance of cloud free summits?
50% early, lowering to 20%
Sunshine and air clarity?
Weak sun through a veil of high cloud through morning, perhaps afternoon too but cloud increasingly thickening from the west. Visibility limited by haze.
How Cold? (at 900m)
6 or 7C, beginning to lower afternoon, by several degrees overnight, likely to freezing or below. Feeling around freezing in early wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 6th March 2026
Last updated
Wed 4th Mar 26 at
4:13PM
How windy? (On the summits)
North-northeasterly 25-30mph from dawn. Gradually easing, to 15mph or less by evening, direction becoming variable.
Effect of the wind on you?
Walking inconvenienced in the morning and feeling chilly, effects becoming small with time.
How Wet?
Some morning rain eases
Some patchy rain affecting mid- and east-Wales in the morning (sleet/snow on high terrain), risk some patches more broadly over Snowdonia NP, but trending drier with time.
Cloud on the hills?
Most extensive early, improving tendency
From dawn, cloud may be extensive above 600m, odd lower patches; clearest hills facing Llyn Peninsula. An improving trend is probable with bases lifting and a rising chance of breaks on western hills, though high summits may struggle to clear.
Chance of cloud free summits?
Rising to 50%
Sunshine and air clarity?
Mostly cloudy though bright breaks, sun breaking out later. Excellent visibility away from cloud/rain.
How Cold? (at 900m)
-2 or -1C from dawn, rising a degree during daylight, likely rising further overnight.
Freezing Level
700-800m, lifting to the high summits, then above summits into night.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 7th March 2026
Last updated
Wed 4th Mar 26 at
4:13PM
How windy? (On the summits)
Southeasterly 15 to 20mph, local gusty spots around higher western mountains.
Effect of the wind on you?
Fairly small.
How Wet?
Precipitation not expected
Cloud on the hills?
Local patches, lifting
Some patchy cloud on mid to upper slopes early in the day, likely to lift above the hills.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Cloud breaking to give occasional sun. Visibility very good, may be hazy lower down.
How Cold? (at 900m)
4 or 5C, slight rise into afternoon.
Freezing Level
Patchy slight frost in valleys at dawn, otherwise above freezing to tops.
Planning Outlook
Higher pressure extends back across the country to bring dry conditions on Saturday, feeling mild in sunshine by day after a chilly start. More cloud by Sunday as weak fronts encroach in from the west, some drizzly rain moving into western Scotland. Patchy rain likely in the west at least early in the new week, likely dropping back just below freezing on the Munros for a time with some snowfall on higher areas. Winds fairly light early week, then a risk of strengthening southwesterlies later in the week; changeable weather conditions with spells of rain coming in from the Atlantic. Remaining old snow cover on Scottish mountains stays largely consolidated with little change, only very patchy snow remains around highest tops in England and Wales.