Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for dry and settled conditions as high pressure builds over the United Kingdom. Lower confidence for cloud detail.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.
Mountain weather forecast
Dry. Partly cloudy day with sunny intervals. Light winds.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 600m) |
|
|
|
|
|
|
Chance of precipitation (at 600m) |
<05% | <05% | <05% | <05% | <05% | <05% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
N
3
|
NW
5
|
NW
4
|
NW
5
|
W
3
|
NW
3
|
| 300m |
W
3
|
W
3
|
NW
3
|
NW
4
|
W
4
|
W
3
|
| Valley |
W
3
|
W
3
|
NW
2
|
NW
3
|
W
4
|
W
3
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 5 | 7 | 6 | 7 | 6 | 5 |
| 300m | 4 | 5 | 5 | 6 | 7 | 4 |
| Valley | 4 | 5 | 5 | 6 | 7 | 4 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
9°
|
11°
|
12°
|
10°
|
8°
|
| 300m |
10°
|
12°
|
14°
|
15°
|
11°
|
9°
|
| Valley |
11°
|
12°
|
15°
|
15°
|
12°
|
10°
|
| Freezing Level |
2,800m
|
2,700m
|
2,400m
|
2,300m
|
2,200m
|
2,300m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
8°
|
8°
|
10°
|
11°
|
10°
|
8°
|
| 300m |
10°
|
12°
|
14°
|
14°
|
11°
|
9°
|
| Valley |
11°
|
12°
|
15°
|
15°
|
12°
|
10°
|
Additional weather information
Meteorologist's view
A dry period of weather with good hill walking conditions.
Weather
A dry day with partly cloudy skies and sunny intervals. Increasing bright in the afternoon with some sunny spells developing.
Chance of cloud-free hill tops
80%
Low cloud and visibility
Cloud slowly lifting and breaking up during the morning. Mainly good visibility with clear views of distant hills.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0.4mm | 0.6mm |
Measurement date:
Rainfall data provided by Natural Resources Wales. The Met Office is not responsible for content provided by third parties and may remove this data without warning.
Mountain weather information
Weather
Clear spells and patchy mist and fog in the valleys overnight, slow to clear in the morning. Saturday will be dry with sunny spells but some patchy cloud on some mid to high slopes.
Chance of cloud-free hill tops
80%.
Maximum wind speed expected
North 5-10mph.
Temperature
- At 600m Plus 5C rising to 10C.
- Valley Plus 7C rising to 14 or 15C.
- Freezing level Above summits.
Low cloud and visibility
Mainly good visibility. Patchy fog in the valleys in the morning, also some patchy cloud above 400m but summits will likely stay sunny or clear throughout above the cloud inversion.
Mountain weather information
Sun 12 Oct
Sunrise:
Sunset:
Dry with sunny spells. Some cloud on low to mid slopes at times but summits staying sunny above the cloud inversion. Light winds.
Mon 13 Oct
Sunrise:
Sunset:
Dry with sunny spells. Some cloud on low to mid slopes at times but summits staying sunny above the cloud inversion. Light winds.
Tue 14 Oct
Sunrise:
Sunset:
Generally cloudier than previous days with freshening easterly winds.
Updated at:
Summit specific forecast
Mountain summit forecast map
Loading map…
Key
Mountain summits
Other points of interest
Cluster of multiple stations
The Bannau Brycheiniog / Brecon Beacons is a mountain range in South Wales comprising six main peaks, with the highest peak, Pen y Fan, standing at 886 metres.