Detailed mountain weather forecast - Brecon Beacons

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Updated: 0411 on Fri 24 May 2013

Overview for Friday

Cold with strong winds, rain and showers, gradually easing later.

Hazards

Gales: Northerly winds reaching gale force over the highest summits. [Medium risk]

Severe chill effect: Strong winds coupled with unseasonably cold temperatures could give a severe chill effect. [Medium risk]

Strong sunlight: Risk of sunburn as sunny spells develop through the afternoon. [Medium risk]

Weather summary

Dawn to 0900
Light Rain
30% chance of rain

0900 to 1200
Medium-Level Cloud
30% chance of rain

1200 to 1500
Light Rain Shower
30% chance of rain

1500 to Dusk
Sunny Intervals
20% chance of rain

Weather

A cold and cloudy start with outbreaks of rain and showers. Strong northerly winds reaching gale force at times, particularly through the late morning and early afternoon. Showers will become more isolated later in the afternoon, though still a few heavy ones around, with some sunny spells developing, and winds starting to ease.

Visibility

Generally good or very good, but moderate or poor in rain or showers.

Hill fog

Some isolated patches of hill fog at first, but clearing through the early morning.

Maximum wind speeds above 400m

Northerly 60 mph during the afternoon.

Temperatures

Valleys - Plus 2 Celsius rising to plus 9 Celsius during the afternoon.
800 m - Zero Celsius, becoming plus 5 Celsius during the afternoon.
Freezing level - 850m rising to 1200m through the afternoon.