Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Friday's Forecast
Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
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Gale force, walking arduous
Considerable buffeting, walking into the wind will be strenuous on exposed terrain, stronger gusts may knock you off your feet. 40 to 55mph.
Heavy rain
Near-constant heavy rain, sometimes torrential over the mountains, very wet underfoot.
Poor visibility
Murky conditions with areas of fog shrouding the hills, making navigation challenging. Map and compass essential.
Cold
Air temperature below 0C all day on higher mountains. Significant chill factor if exposed to strong winds. Suitable protective clothing required.
Viewing Forecast For
Eryri / Snowdonia National Park
Friday 6th February 2026
Last updated
Thu 5th Feb 26 at
12:25PM
Summary for all mountain areas
Widely very poor conditions on the hills: upland gales, and persistent fog and rain, or on higher areas (widely Scottish Highlands) snow. But western Scotland, mainly westernmost slopes, often dry with higher cloud base (sometimes clearing). Wales: some improvement from south during day.
Headline for Eryri / Snowdonia National Park
Upland gales easing; rain. Persistent fog.
How windy? (On the summits)
Easterly 35-50mph, powerful gusts high tops, passes and downslope from western summits. Will tend to turn southeasterly and ease toward 25mph through day; timing uncertain.
Effect of the wind on you?
Arduous or difficult walking and significant wind chill from dawn, although conditions will tend to ease, perhaps markedly.
How Wet?
Frequent rain; snow higher tops, mainly Snowdon range morning
Rain frequently but sleet or particularly morning Snowdon range, snow above about 800m. Will tend, initially mid Wales, to turn to heavy showers afternoon.
Cloud on the hills?
Almost persistent blanket of fog
Persistent cloud base at or below 350m morning although breaks above 650m westernmost hills. Intermittently improving as breaks develop from south to 750m afternoon
Chance of cloud free summits?
Almost nil
Sunshine and air clarity?
Dull and murky - though some improvement from south: glimpses of sun and very good visibility.
How Cold? (at 900m)
0 or 1C, tending rise slowly through day. Will feel as cold as -12C directly in the wind.
Freezing Level
900m, tending to rise through day.
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 7th February 2026
Last updated
Thu 5th Feb 26 at
12:25PM
How windy? (On the summits)
South-easterly 15 to 25mph, but perhaps lifting to 30mph east Wales and into mid Wales.
Effect of the wind on you?
Increasingly blustery across hills in east Wales down to mid Wales. Otherwise, mostly small.
How Wet?
Showery
Showers, particularly W Wales - risk that the rain may be almost constant for an hour or two.
Cloud on the hills?
Extensive, lowest east Wales.
Extensive low cloud across the hills, widely to mid slopes across east Wales, but more generally around 800-1000m toward the west coast.
Chance of cloud free summits?
20%
Sunshine and air clarity?
Very little if any sun. General haze, best visibility near west coast.
How Cold? (at 900m)
1C, lifting to plus 3C
Freezing Level
1000m, but soon above highest summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 8th February 2026
Last updated
Thu 5th Feb 26 at
12:25PM
How windy? (On the summits)
Southerly typically 15 to 20mph possibly 25mph at times.
Effect of the wind on you?
Mostly small
How Wet?
Showers
Rain now and again, particularly afternoon falling as heavy showers. Risk hail.
Cloud on the hills?
Extensive on higher slopes.
Cloud base typically 600 to 800m, rare breaks to higher tops, but nearer 300m in rain.
Chance of cloud free summits?
Less than 10%
Sunshine and air clarity?
Occasional sunshine; visibility very good, but poor in rain.
How Cold? (at 900m)
2C
Freezing Level
Above the summits.
Planning Outlook
Overall little change in conditions over the coming week: the mountains extensively foggy, precipitation from time to time (although lower total rainfall in eastern Scotland and Wales than recently) and often strong southeast or easterly wind. However, a slight rise in temperature will result in thawing of lying snow from southern Scotland southwards and some thawing up to around 900, sometimes 1050m Scottish Highlands - although the chance of the return of low freezing level toward the middle of next week.