Eryri / Snowdonia National Park
Includes all summits in the the northern half of Wales from Pumlumon northwards.
Tuesday'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.
Hazy, some fog banks
.jpg "Hazy, some fog banks"){kind=icon}
Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Click an icon for more information or click here for a key to all icons.
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.
Hazy, some fog banks
Distant views reduced by haze, locally foggy for a time in valleys and some hill slopes.
Warm
Comfortable temperatures on the hills, 10 to 15C on tops, feeling pleasantly warm especially on lower ground. Beware of feeling cooler if exposed to wind on higher terrain.
Viewing Forecast For
Eryri / Snowdonia National Park
Tuesday 28th July 2026
Last updated
Mon 27th Jul 26 at
4:30PM
Summary for all mountain areas
Challenging conditions over high terrain with gale-force winds, severe gales on the higher Scottish mountains. A few hours of persistent rain, some heavy for the Highlands, leaving drizzly conditions, low cloud across most hills. Some heavier rain again later in western Scotland.
Headline for Eryri / Snowdonia National Park
Windy, up to gale-force. Drizzly rain, low cloud.
How windy? (On the summits)
Southwesterly 25 to 35mph, gusts 40-45mph around higher northern tops.
Effect of the wind on you?
Strenuous walking conditions, frequent buffeting gusts knocking you off balance on exposed terrain. Marked wind chill.
How Wet?
Drizzle and some rain west
Drizzly rain frequent over western areas, some more steadier rain occasionally in the morning, tending to fade. Very little reaching eastern Wales.
Cloud on the hills?
Extensive, most persistent west
Blanket cloud likely covering the hills, to lower elevations in west in the morning, 500-600m further northeast. Bases tend to rise, but lingering much of the day over west coast slopes above 600-700m.
Chance of cloud free summits?
10% rising to 30% west, 60% east.
Sunshine and air clarity?
Largely cloudy, misty in west, poor visibility widely in rain; some improvements and brief moments of sun east Wales.
How Cold? (at 900m)
12C northwest, little variation all day, to locally 15C eastern hills, quite humid. Feeling like 2 to 5C directly in wind.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Wednesday 29th July 2026
Last updated
Mon 27th Jul 26 at
4:30PM
How windy? (On the summits)
South to southwesterly 20 to 30mph, gusty in places over higher terrain.
Effect of the wind on you?
Blustery over the hills, affecting comfortable walking at times on higher exposed tops and ridges.
How Wet?
Local drizzle, chance a shower
Some drizzle around low cloud on hills near Cardigan Bay. Chance of an isolated thundery burst of rain inland into evening. A band of rain moves in from west into night, risk thunder.
Cloud on the hills?
Mostly west coast hills
Cloud banks to lower elevations on coastal hills in west, tending to thin but may linger around some slopes all day. Further north and east, odd patches, may largely clear.
Chance of cloud free summits?
30% west, to 70% north/east.
Sunshine and air clarity?
Locally cloudy and misty in west, may improve. Otherwise sun and varied high cloud, visibility very good.
How Cold? (at 900m)
12C rising to 15C, possible 18C mid-Wales. Some valleys reach 25C or above mainly inland and east; quite humid.
Freezing Level
Above the summits.
Viewing Forecast For
Eryri / Snowdonia National Park
Thursday 30th July 2026
Last updated
Mon 27th Jul 26 at
4:30PM
How windy? (On the summits)
Westerly 20 to 25mph, at times 30mph higher northern tops.
Effect of the wind on you?
Affecting ease of walking and balance on exposed high tops and ridges. Marked wind chill.
How Wet?
Early rain then showers clear
A possible band of rain around dawn, heavy for a time. Then scattered showers, briefly may give odd heavy bursts, tending to move away eastward by afternoon. Possible showers return later in day west.
Cloud on the hills?
Early patches lifting and clearing
Patchy cloud banks over mountains, most in western areas in the morning, bases tending to rise and break above many tops middle of day and often clear afternoon. Banks of cloud may return on tops later.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Fairly cloudy start, then sun breaking through, increasingly sunny afternoon. Visibility reduced in early showers, then good becoming very good.
How Cold? (at 900m)
7 to 9C. Feeling near 0C in exposure to wind.
Freezing Level
Above the summits.
Planning Outlook
A complex pattern into the start of August as weak low pressure is nearby to the west. Some showery bursts of rain, possibly thundery in places on some days, locally persistent rain possible, but some places may well escape drier. Cloud varying over the hills from day to day. Strong southwesterly winds later this week, then becoming more variable in speed and direction over the weekend into early next week, may strengthen again for periods. A generally showery westerly may then prevail during next week. Temperatures near average or on the cooler side for Scotland, warmer for Wales and Peak District. Beware ongoing fire management restrictions to access despite rain in the forecast.