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Cairngorms NP and Monadhliath Forecast

Cairngorms NP and Monadhliath

Cairngorms National Park and Monadhliath. Also includes the Ben Alder area hills between Loch Ericht and Loch Laggan.

Click here to download the latest PDF Last Updated Sun 19th Sep 21 at 3:49PM Last Updated Sun 19th Sep 21 at 3:49PM
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Viewing Forecast For

Cairngorms NP and Monadhliath
Monday 20th September 2021
Last updated Sun 19th Sep 21 at 3:49PM

Summary for all mountain areas

Low cloud and generally damp conditions will affect western Scotland. Total rainfall small, although some steadier rain will develop as a front moves in. SW'ly winds strongest in the far north. Elsewhere a fine day with broken cloud and sun, some early fog patches.

Headline for Cairngorms NP and Monadhliath

Mainly dry, cloud confined to higher tops. Increasing wind.

How windy? (On the Munros)

Southwest later westerly, tending to strengthen from 10 to 25mph through the day, locally 30mph higher Cairngorm plateau.

Effect of the wind on you?

Fairly small, but increasingly blustery on higher tops.

How Wet?

Little or no rain

Chance of spots of rain drifting in from the west onto the Monadhliath perhaps Ben Alder area later afternoon into evening.

Cloud on the hills?

Mostly very little

Patchy cloud briefly on some tops, but most cloud above higher tops most of daylight. Toward evening, cloud bases tending to lower, mainly near and west of the A9, covering tops above 800 to 1000m.

Chance of cloud free Munros?

80%, dropping to 50% later west of A9.

Sunshine and air clarity?

Patchwork of sunshine, clouding up a little from west. Mostly excellent visibility. Some early fog pockets in glens.

How Cold? (at 900m)

9C

Freezing Level

Above the summits.

Viewing Forecast For

Cairngorms NP and Monadhliath
Tuesday 21st September 2021
Last updated Sun 19th Sep 21 at 3:49PM

How windy? (On the Munros)

Southwesterly, strengthening through day, 25 to 40mph, risk later 50mph around Cairngorm plateau.

Effect of the wind on you?

Marked increase of speed with height, walking becoming arduous on hills, plus powerful gusts into passes & corries.

How Wet?

Little or no rain

Occasional spots in the wind, mostly hills near or west of the A9. Very likely dry further east.

Cloud on the hills?

Mostly very little

Some patches of cloud may occasionally cap higher slopes, mainly around Ben Alder, Monadhliath and west of Ben Macdui. Further east, cloud only rarely covering higher slopes.

Chance of cloud free Munros?

60% west, 80% east.

Sunshine and air clarity?

Sunshine and thin high level cloud, sometimes cloud may thicken near A9. Visibility good, but a slight haze.

How Cold? (at 900m)

8C if in cloud, up to 13C toward east; only small change with increasing height.

Freezing Level

Above the summits

Viewing Forecast For

Cairngorms NP and Monadhliath
Wednesday 22nd September 2021
Last updated Sun 19th Sep 21 at 3:49PM

How windy? (On the Munros)

Southwest may turn westerly, risk 60-70mph around dawn, likely easing, soon typically between 25 and 40mph.

Effect of the wind on you?

Stormy conditions at first are likely to lessen, but expect arduous walking conditions and marked wind chill most of the day.

How Wet?

Early rain, then scattered showers

A belt of rain around dawn, briefly heavy, is likely to soon clear southwards. Becoming often dry, but a few showers are likely to come in from the west at times.

Cloud on the hills?

Lifting to higher tops

Extensive cloud at various levels across the hills at first, tending to lift and break toward higher slopes, sometimes clearing, but cloud is likely to come and go above 1000m through the day. Often higher toward Deeside.

Chance of cloud free Munros?

50%

Sunshine and air clarity?

Occasional sunshine, best in eastern areas. Visibility generally good, perhaps slight haze.

How Cold? (at 900m)

Starting at 8C, but lowering through day to around 5C.

Freezing Level

Above the summits, but by dusk will have dropped close to highest tops (around 1400m).

Planning Outlook

High pressure will drift southwards and southwesterly winds will strengthen across Britain in the first half of the week, soonest across Scotland. Staying windy through into next weekend, gales or sometimes severe gales on higher mountains, particularly Scotland. Rain will become frequent in western Scotland as fronts come in from the Atlantic. Spells of rain elsewhere - less wet for Wales and southern Pennines, although a risk of heavier rain moving further south by the weekend. Temperatures will vary through the next 10 days, sometimes fairly warm and humid, but chiller air spreading from the northwest at times - Scottish high tops occasionally near freezing point.