Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Tuesday'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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
Hazy, some fog banks
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Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
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.
Patchy rain or drizzle
Rain on and off, or generally drizzly - total amounts small, but may be persistently damp, especially where hills are shrouded in cloud.
Hazy, some fog banks
Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
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
Tuesday 10th November 2026
Last updated
Mon 9th Nov 26 at
4:05PM
Summary for all mountain areas
Much of Scotland dry with sunshine; areas of low-level fog and frost. Some showers toward the far north. Fog from lower elevations upward for Pennines and east Wales, but much of northwest Wales and the Lakes have clearer hills. Rain moves into south Wales. Strong easterly winds for Wales.
Headline for Eryri / Snowdonia National Park
Gusty wind. Fog east, clearer west; a little rain later south.
How windy? (On the summits)
Southeasterly 25mph, gusty 30mph in places around major summits, high passes and some western downslopes.
Effect of the wind on you?
Starting to affect ease of walking in exposure, gusty areas affecting balance. Marked wind chill.
How Wet?
Rain developing later mid Wales
The morning widely dry, much of the day in northern areas, but rain moving in gradually from the south afternoon, later becoming more persistent mid-Wales, but patchy small amounts only by evening in north.
Cloud on the hills?
Low cloud and fog mostly east and south, clearer northwest mountains
Northwest around the wider Snowdon group, for much of day the hills may stay clear. Varied extent of low cloud and fog inland; eastern areas foggy to low levels in morning, some tops may be above fog. Cloud banks tend to drift higher up and fill in increasingly from the south during the afternoon.
Chance of cloud free summits?
30% east and mid-Wales; 70% northwest.
Sunshine and air clarity?
Any sun weak due to a thick veil of high cloud. Visibility very good northwest, but murky and foggy much of east Wales.
How Cold? (at 900m)
3C, to local 5C west. Feeling like -5C directly in the wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 11th November 2026
Last updated
Mon 9th Nov 26 at
4:05PM
How windy? (On the summits)
Easterly 20 to 30mph, stronger gusts in places around tops, passes and locally to some lower slopes; easing a little.
Effect of the wind on you?
Starting to affect comfortable walking on exposed terrain, variable gusts but lessening. Marked wind chill.
How Wet?
A little rain mainly mid Wales
Patchy rain toward mid Wales, may give steady light rain for a few hours, tending to break up and fizzle out as the day goes on. Largely dry northwestern mountains around the wider Snowdon group.
Cloud on the hills?
Mostly eastern hills, little northwest
Banks of cloud lowest and most persistent toward mid Wales and the Bala-Berwyn group, whilst further north/west cloud base higher and patchier, most common around Carneddau, but increasingly clearing.
Chance of cloud free summits?
20% east/mid Wales, 50% northwest
Sunshine and air clarity?
A veil of cloud may thin from the north to allow sun to break through, mainly western areas. Poor visibility where in cloud and rain mid-Wales, but very good northwest.
How Cold? (at 900m)
2 or 3C. Feeling like -5 to -8C directly in the stronger wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 12th November 2026
Last updated
Mon 9th Nov 26 at
4:05PM
How windy? (On the summits)
Northerly 20 to 30mph.
Effect of the wind on you?
Affecting comfortable walking on exposed high terrain, gusts may affect balance. Considerable wind chill.
How Wet?
Rare brief showers
Chance of an odd light shower drifting onto coastal hills from the north, a snow flurry above 600m.
Cloud on the hills?
Grazing tops at times
Occasional patches cap higher slopes from time to time, mainly areas facing north nearer the coasts.
Chance of cloud free summits?
80%
Sunshine and air clarity?
Mostly sunny, a little patchy cloud toward coasts. Visibility excellent.
How Cold? (at 900m)
-1C. Feeling like -10C directly in the wind.
Freezing Level
800m, or slightly higher near coast. Also frost many inland valleys in morning.
Planning Outlook
Dropping colder across all mountains during midweek as the wind shifts northerly and strengthens. Some showery snowfall across the Highlands on Wednesday, otherwise plenty of sunshine and very clear air late this week, for all areas - clearing away fog from early in the week. Into the weekend, as the wind shifts west then southwesterly, less cold air drifts in from the Atlantic bringing more cloud onto western hills - an increasing risk of rain in the west. A changeable outlook into next week with varying temperatures, stronger wind at times, rain and some upland snow possible. Unsettled patterns are more likely to prevail beyond mid-month.