Brecon Beacons Forecast
Viewing Weather Forecast for Wednesday 20th November 2019
Includes all higher summits in the southern half of Wales, including highest point in Preseli Hills.
Forecast last updated on Tuesday 19th November 2019 at 3:14pm
How windy? (On the summits)
South or southeasterly 30 to 40mph, perhaps stronger, risk gusts 45-50mph westernmost summits morning.
Effect of wind on you?
Walking arduous where exposed across the hills. Significant wind chill. Sudden strong gusts running downslope.
How Wet? (Precipitation and its impact)
Patchy rain or drizzle mostly west
Patches of rain likely to come and go, although amounts small. Locally persistent across Pembrokeshire hills for a few hours. Many areas may well see little precipitation all day.
Cloud on the hills?
Fairly extensive, some breaks
Risk of fog covering hills from valleys or lower slopes up in morning, particularly eastern areas. Gradually into middle of day, this will lift into cloud mostly confined above 500-600m, most persistent Black Mountains, and Preseli hills if rain occurs. Some local breaks may form near/north of Brecon.
Chance of cloud free summits?
10%, locally up to 40% mid-Wales PM.
Sunshine?
Air clarity (below cloud)
Sunshine not expected. Hazy, or foggy to low levels some areas in morning.
How Cold? (at 750m)
2C. In exposure to strongest wind, feeling like -12C.
Freezing Level
Above highest summits.
Planning Outlook
All mountain areas of Britain from Thursday 21st November 2019
Areas of low pressure lying to the west & southwest of Britain will make gradual progress across the country later this week. A slow lift of temperature, although winter conditions will prevail across higher Scottish mountains through the weekend. Even next week in the Highlands, periods of thaw are expected to be short-lived. Occasional snowfalls. Least precipitation again in the far north/northwest. Tops in England & Wales more commonly above freezing point. Periods of rain or showers coming in from the south/southwest. Winds varied through weekend, but risk bouts of gales next week.
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