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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Chilly
Air temperature typically 1 to 5C on higher summits. Feeling distinctly chilly on tops when stationary or where exposed to wind. Take appropriate layers.
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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.
Sunshine and showers
A good amount of dry and bright weather, but scattered bursts of rain, some may be locally heavy.
Chilly
Air temperature typically 1 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
Thursday 23rd October 2025
Last updated
Wed 22nd Oct 25 at
4:25PM
Summary for all mountain areas
Areas of rain and strong winds within a large area of low pressure, will circulate across Britain. However, although varied, many mountain areas, particularly mainland Scotland and NW England, between low pressure centres will experience relatively light wind and hardly any rain.
Headline for Eryri / Snowdonia National Park
Windy; rain on and off - least wet mid and east Wales.
How windy? (On the summits)
Northwesterly, 30 to 40mph.
Effect of the wind on you?
Considerable wind chill and buffeting, particularly on higher tops.
How Wet?
Showers; the rain perhaps frequent over a couple of hours.
Risk early in the day of constant rain east Wales. Otherwise showery, the rain most frequent west Wales, where risk of it setting in for an hour or two
Cloud on the hills?
Base rising, but unlikely to clear higher areas Snowdon range
Often capping higher slopes, varying in and out of showers. Higher breaks more frequent well inland and eastern areas.
Chance of cloud free summits?
10% Snowdon range, but elsewhere by afternoon 60%
Sunshine and air clarity?
Some bursts of sun, mainly mid and east Wales. Visibility very good or perhaps in mid Wales excellent.
How Cold? (at 900m)
3C. In stronger winds, chill factor feeling like -8C.
Freezing Level
Close to highest summits above 1000m.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 24th October 2025
Last updated
Wed 22nd Oct 25 at
4:25PM
How windy? (On the summits)
Westerly 25 to 40mph. May well ease markedly for several hours centred on early afternoon.
Effect of the wind on you?
Be prepared for arduous conditions with significant wind chill and buffeting for periods.
How Wet?
Clusters of showers
Clusters of showers, some heavy, will edge in from the west through the day. May give frequent rainfall across western mountains.
Cloud on the hills?
Fairly extensive
Hill fog likely fairly extensive above 600-800m, with perhaps occasional patches to lower slopes. Breaks to the tops likely to be rather fleeting away from east Wales.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Glimpses of sun through high cloud between the showers. Visibility often poor due to rain.
How Cold? (at 900m)
3C, but feeling more like sub -5C in direct exposure to the strongest winds.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 25th October 2025
Last updated
Wed 22nd Oct 25 at
4:25PM
How windy? (On the summits)
North-westerly 25 to 40mph
Effect of the wind on you?
Be prepared for very blustery and gusty conditions with significant wind chill and buffeting.
How Wet?
Frequent showers, snow tops.
Shower after shower will likely feed in from Irish Sea, forming shower bands where precipitation becomes near constant. Snow falling over high tops.
Cloud on the hills?
Fairly extensive higher slopes
Cloud likely to cap tops in fog often, most widely Snowdon Range and western coastal hills. Further inland and south, cloud breaking off the tops for periods.
Chance of cloud free summits?
30%
Sunshine and air clarity?
Bursts of sun, mostly widely in the south. Visibility very good out of showers, but poor or very poor in precipitation.
How Cold? (at 900m)
1C, but feeling closer to -10C in the wind.
Freezing Level
1000m
Planning Outlook
A cold weekend; higher summits close to freezing point in England and Wales and below in Scotland. Substantially dry on many mountains but areas of frequent showers (hail and snow), mainly NW and W Highlands (where wind close to gale on Saturday) and north and west Wales. Some uncertainty for Sunday afternoon with threat of rain setting in on many western mountains - ahead of a less cold but often windy and wet few days.