Brecon Beacons
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Viewing Forecast For
Brecon Beacons
Monday 12th April 2021
Last updated
Sunday 11th April 2021 at
3:10 PM
Summary for all mountain areas
Staying cold, sub-zero on the mountains, but winds generally light. Dry with sunshine and very clear air for many places. Chance of isolated snow showers or flurries. Cloudier for Wales. Widespread significant frost inland after dawn.
Headline for Brecon Beacons
Cold, local showers. Breezy, particularly morning.
How windy? (On the summits)
Northwesterly 20 to 25mph, typically strongest early morning, risk 30mph around dawn in places. Dropping to around 15mph, then may increase a little again toward evening.
Effect of the wind on you?
Risk blustery with marked wind chill early in the day, becoming less through middle of day.
How Wet?
Risk of a little rain/snow higher slopes.
Overnight precipitation likely clearing around dawn, snow to low levels in places. A few residual showers or snow or soft hail flurries may run inland from the northwest, plus scattered brief showers forming inland during afternoon.
Cloud on the hills?
Covering some hills for a time
Banks of cloud covering some higher slopes in morning, mainly west Wales, before bases tend to lift into the afternoon and most tops clear.
Chance of cloud free summits?
50% rising to 80%
Sunshine and air clarity?
Fairly cloudy from dawn, but some patchy sun likely to break through. Locally poor visibility for a time in morning, but mostly very good.
How Cold? (at 750m)
-2C lifting to around 0C. Where exposed to wind on tops, feeling closer to -10C.
Freezing Level
Generally 600m, but down to lower slopes at dawn in east after frost, lifting to around 800m.
Viewing Forecast For
Brecon Beacons
Tuesday 13th April 2021
Last updated
Sunday 11th April 2021 at
3:10 PM
How windy? (On the summits)
West to northwest 5 to 10mph.
Effect of the wind on you?
Negligible
How Wet?
Risk showers; snow higher slopes.
Often dry through the day, but risk of a scattering of showers developing; snow across higher slopes.
Cloud on the hills?
Forming in and around showers
Very likely hills often clear through the day, but should snow showers develop; fog will shroud higher slopes here and there.
Chance of cloud free summits?
70%
Sunshine and air clarity?
Periods of sunshine, but may become cloudy into the afternoon. Visibility excellent, but poor/very poor in any showers.
How Cold? (at 750m)
Around 0C lifting to 2C
Freezing Level
Around 800m, but widespread frost lower slopes at dawn. Freezing level lifting off tops.
Viewing Forecast For
Brecon Beacons
Wednesday 14th April 2021
Last updated
Sunday 11th April 2021 at
3:10 PM
How windy? (On the summits)
Easterly, may increase 5 to 15mph.
Effect of the wind on you?
Likely small, but marked chill may develop.
How Wet?
Possible snow flurries
Chance of an isolated snow or soft hail flurry. Where these do form, they will move around slowly for an hour or so.
Cloud on the hills?
Little if any
Fragments of cloud may briefly form on higher slopes in morning, otherwise most cloud which forms will be above the hills. Brief patches on tops if showers occur.
Chance of cloud free summits?
90%
Sunshine and air clarity?
Periods of sunshine; cloud sometimes filling in, particularly by afternoon. Visibility excellent.
How Cold? (at 750m)
0C rising to 3C.
Freezing Level
Frost in some valleys and corries from dawn; then typically just above freezing to highest summits.
Planning Outlook
High pressure influences Britain through the next week to 10 days, maintaining quiet and fairly cool conditions, although a gradual rise of temperature is expected. Frost remains common, with a general rise of freezing level on the mountains into the afternoons. Existing lying snow on higher mountains will stay in place, thawing slightly during daytimes. Sun and variable cloud; most mountains often clear. Very little precipitation, apart from very isolated showers of snow or soft hail. Mostly light winds, but there may be some strengthening of wind around next weekend.