Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Brecon Beacons
Monday 20th September 2021
Last updated
Sun 19th Sep 21 at
3:49PM
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.
Dry, hills generally clear, sunshine.
Northerly 10 to locally 15mph.
Small
No rain
Little if any
Most cloud confined above higher tops. Some early fog banks in valleys.
90%
Sunshine and a little fair-weather cloud forming. Mostly excellent visibility; early low level fog.
9C
Above the summits.
Brecon Beacons
Tuesday 21st September 2021
Last updated
Sun 19th Sep 21 at
3:49PM
Northwest becoming westerly, 10mph.
Negligible
Rain not expected
Generally clear
Chance of fog banks near west coast for a time, also in some valleys inland after dawn.
90%
Sunshine and high level cloud. Visibility good, but a slight haze.
12C; hills warmer than valleys at first.
Above the summits
Brecon Beacons
Wednesday 22nd September 2021
Last updated
Sun 19th Sep 21 at
3:49PM
Southwesterly, 20 to 30mph, but may reach 40mph for a few hours on higher tops.
Expect blustery conditions throughout the day, walking sometimes arduous on higher tops and feeling cool where exposed.
Little or no rain
Much of the day likely dry in south and east Wales. Chance of patchy light rain developing on western hills as a front approaches from the northwest.
Patchy low cloud mostly west Wales
Some banks of cloud focused on western Cambrian and Preseli hills, but very patchy elsewhere with most eastern summits clear.
40% west, to 70% east.
Occasional sun, mostly east Wales. Visibility good below cloud, but west coasts may become misty.
10 to 12C.
Above the summits
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.