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.
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.
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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Windy, walking impeded
Blustery conditions enough to give buffeting on higher terrain or affect balance on exposed ridges. 25 to 40mph.
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.
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
Friday 7th November 2025
Last updated
Thu 6th Nov 25 at
3:58PM
Summary for all mountain areas
Cloud and drizzle in central and south Scotland, clearer hills (including some summits) north. Blustery coasts from Skye southward, Wales breezy too. A cloud sheet will cover English and Welsh peaks with low bases on south aspects. Rain over south Wales through afternoon, risk of afternoon rain for the Pennines.
Headline for Eryri / Snowdonia National Park
Breezy with patchy rain and cloud south; deteriorating later
How windy? (On the summits)
Southerly 25-35mph. Shifting southeasterly and trending higher later at times, up to 40mph over high tops, risk of stronger gusts later in the day.
Effect of the wind on you?
Strenuous walking much of the day with winds over tops strengthening suddenly at times, posing a challenge to stability. Considerable wind chill.
How Wet?
Few patches of light rain from the south
Occasional patches drizzly rain come and goes on southern slopes, some fine drizzle drifting around high tops. A broader area of rain arrives from the southwest later afternoon, setting in for several hours through dusk and nightfall.
Cloud on the hills?
Mostly high tops and southern slopes
Cloud will cap the high summits most of the day. Banks of cloud forming down on medium southern slopes, higher bases to the north with higher breaks near Carneddau, some tops may locally clear. Low cloud will linger over the Berwyn group as well.
Chance of cloud free summits?
30% northern tops
Sunshine and air clarity?
Glimpses of sunshine, best on northern slopes, at times for extended periods. Excellent visibility.
How Cold? (at 900m)
7 or 8C. May be up to 9C on northern slopes at dawn. Feeling near or just above freezing in exposure to strongest wind.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Saturday 8th November 2025
Last updated
Thu 6th Nov 25 at
3:58PM
How windy? (On the summits)
Southwesterly 20 to 30mph, speed and direction may vary, at times gusty 35mph - detail uncertain.
Effect of the wind on you?
Starting to affect comfortable walking and balance in places on exposed higher terrain. Marked wind chill.
How Wet?
Drizzle or local showery rain
Drizzly rain on and off, some showery rain occasionally on hills toward Cardigan Bay. More often dry toward Carneddau.
Cloud on the hills?
Fairly extensive, local breaks north
Varied cloud banks in the morning, some patchy mist lower down, fairly extensive above 600m, rising a little with time away from rain. Mostly above 800m north of the A5, here some breaks forming at times.
Chance of cloud free summits?
20%, to 40% Carneddau
Sunshine and air clarity?
Largely cloudy, glimpses of sun mostly north afternoon. Varied mist in morning, and reduced in rain, locally good below cloud in north.
How Cold? (at 900m)
5 or 6C. Feeling below freezing if exposed to stronger sustained wind on high tops.
Freezing Level
Above the summits
Viewing Forecast For
Eryri / Snowdonia National Park
Sunday 9th November 2025
Last updated
Thu 6th Nov 25 at
3:58PM
How windy? (On the summits)
A gusty southwesterly 40-50mph, including down to middle slopes. An easing trend afternoon towards 30mph.
Effect of the wind on you?
Difficult conditions early with considerable buffeting and wind chill. Easing later, though remaining uncomfortable.
How Wet?
Raining most of the day
Frequent rain soon arrives onto western slopes, spreading east and becoming widely persistent for several hours. Heaviest rain on slopes facing the Lleyn peninsula.
Cloud on the hills?
Extensive
Extensive cloud likely all day on slopes facing Cardigan Bay and the Lleyn peninsula. Higher bases towards Carneddau and east-Wales, particularly at dawn, though largely extensive above 600m.
Chance of cloud free summits?
Less than 10%
Sunshine and air clarity?
A few bright periods on northern slopes early where visibility will be good, but elsewhere foggy and dull.
How Cold? (at 900m)
7 or 8C. Feeling like -5C in direct wind.
Freezing Level
Above the summits
Planning Outlook
A brief brighter spell on Saturday, but otherwise staying mild with low cloud, drizzle and rain at times well into next week. Areas northeast of major hill groups seeing least rain and highest cloud breaks, though high summits will struggle to clear the fog as the air will remain generally humid. Southerly winds of varied strengths, sometimes more blustery, approaching gale-force in exposed western areas. As the following weekend approaches, indications of northeasterly winds developing for Scotland, bringing drier weather to the west, and potentially much colder with time. England & Wales may remain frequently wet under slow-moving low pressure - uncertainty over timing and locations of the coldest conditions.