Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High in general but moderate for cloud details.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Poor Visibility
Mountain weather forecast
Another fine day with plenty of sunshine.
| 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% |
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
E
18
|
SE
16
|
E
14
|
E
12
|
SE
8
|
E
9
|
| 300m |
E
6
|
E
10
|
E
10
|
E
9
|
E
4
|
E
3
|
| Valley |
E
3
|
E
9
|
E
10
|
E
8
|
SE
4
|
NE
2
|
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 27 | 22 | 18 | 16 | 12 | 13 |
| 300m | 15 | 15 | 17 | 15 | 11 | 8 |
| Valley | 14 | 15 | 17 | 15 | 12 | 6 |
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
9°
|
11°
|
13°
|
12°
|
10°
|
| 300m |
3°
|
9°
|
14°
|
16°
|
14°
|
7°
|
| Valley |
3°
|
10°
|
15°
|
17°
|
15°
|
7°
|
| Freezing Level |
1,100m
|
1,200m
|
1,200m
|
1,400m
|
1,400m
|
1,500m
|
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
5°
|
6°
|
9°
|
11°
|
11°
|
8°
|
| 300m |
0°
|
6°
|
12°
|
14°
|
13°
|
6°
|
| Valley |
2°
|
8°
|
13°
|
15°
|
14°
|
6°
|
Additional weather information
Meteorologist's view
A fine day expected. Strong sunshine and high UV levels expected, even as temperatures remain somewhat cool in the breeze.
Weather
Patchy low cloud possible in the east of the park at first, and the potential for some mist of fog patches in sheltered valleys. These are likely to clear quickly into the morning to leave a day of dry and fine weather, with plenty of sunshine. Sunshine may turn hazy at times through the evening.
Chance of cloud-free hill tops
95%.
Low cloud and visibility
Patchy low cloud possible between 100-300m at first, likely confined to the far east of the park, and a low risk of some fog in sheltered valleys with a significant inversion likely. After dawn these should quickly clear to leave cloud free skies by mid-morning as conditions warm. Visibility will be very poor or poor in any low cloud or fog initially but very good otherwise with views over distant peaks.
Recent rainfall
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0mm | 0mm |
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
Another dry and bright day ahead with plenty of hazy sunshine through the afternoon despite increasing amounts of cloud. Winds continuing to ease becoming a light to moderate south-easterly.
Chance of cloud-free hill tops
95%.
Maximum wind speed expected
South-easterly 10-15mph.
Temperature
- At 600m Plus 4 Celsius rising to Plus 13 Celsius.
- Valley Plus 2 Celsius rising to Plus 19 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Potential for some mist and fog in sheltered valleys at first which should quickly lift once the sun rises. Visibility will be poor or very poor in any mist or fog at first but excellent otherwise, with good views over distant peaks likely.
Mountain weather information
Sun 26 Apr
A somewhat cloudier day with hazy sunshine likely throughout and patchy lower level cloud around at times. Clouds largely all above summits. Gentle to moderate south-easterly winds. Freezing level above summits.
Mon 27 Apr
Another settled day with bright or sunny spells as fair weather cloud develops over high ground. Gentle to moderate easterly winds and freezing level above summits.
Tue 28 Apr
Another similar day ahead with bright conditions to start and some patchy cloud developing through the afternoon. Freezing level above summits.
Summit specific forecast
Mountain summit forecast map
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.