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Brecon Beacons mountain weather

Tywydd mynyddoedd Bannau Brycheiniog
Enhanced forecast / Rhagolygon manylach
Enhanced forecast / Rhagolygon manylach

 Forecast issued 1645 Sunday, 11 May 2008 / Cyhoeddwyd 1645 Dydd Sul, 11 Mai 2008

Forecast for daylight hours for Monday / Rhagolwg ar gyfer oriau'r dydd Dydd Llun
Hazards / Peryglon
Nil
General situation / Sefyllfa cyffredinol
The weather over the next few days looks fairly settled and dry.
Weather / Tywydd
Some mist or fog patches possible in the valleys at first but these soon dissolving away to leave a dry day with bright or sunny spells.
Visibility / Gwelededd
Mainly moderate to good, but poor in any valley fog at first.
Cloud base / Gwaelod y cymylau
There will be scattered cloud the bases of which will be above the summits.
Wind and temperature at 800m / Gwynt a thymheredd at 800m
Easterly at 15 mph Plus 13C
Freezing level / Lefel rhewi
Above the tops

Forecast for daylight hours for Tuesday / Rhagolwg ar gyfer oriau'r dydd Dydd Mawrth
Weather/ Tywydd
Dry with some bright or sunny intervals although there will be some valley mist and fog patches at first.
Visibility, cloud base / Gwelededd, Gwaelod y cymylau
Mainly moderate to good, but poor in any valley fog at first. Only scattered amounts of cloud the bases of which will be well above the summits.
Wind, temperature, freezing level / Gwynt, thymheredd, lefel rhewi
Easterly at 15 to 20 mph/Plus 14C/Above the tops.

Outlook for Wednesday / Rhagolygon ar gyfer Dydd Mercher

Staying dry with some sunshine. Brisk east or southeast winds. Freezing level above the summits.

Outlook for Thursday / Rhagolygon ar gyfer Dydd Iau

A cloudier day with the risk of outbreaks of rain or showers. Brisk easterly winds. Freezing level well above summits.

Outlook for Friday / Rhagolygon ar gyfer Dydd Gwener

Sunny intervals and scattered showers these possibly heavy in the afternoon. Light easterly winds. Freezing level well above summits.

Weather forecast for Wales / Rhagolygon y tywydd i Gymru