Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for changeable weather to continue into the weekend, but low for daily detail of any rainfall
This evening forecast
Cold and windy with outbreaks of rain, strong southeasterly winds.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.
Mountain weather forecast
Overcast with rain at times
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
Weather (at 600m) |
|
|
|
|
|
|
|
|
Chance of precipitation (at 600m) |
30% | 00% | 40% | 40% | 60% | 60% | 20% | 20% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
SE
22
|
SE
20
|
SE
15
|
SE
15
|
SE
16
|
S
14
|
SW
13
|
S
11
|
| 300m |
SE
13
|
SE
11
|
SE
8
|
SE
8
|
SE
9
|
S
9
|
SW
8
|
S
6
|
| Valley |
SE
11
|
SE
9
|
E
8
|
SE
8
|
SE
7
|
S
7
|
SW
6
|
S
6
|
Wind gust (mph)
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m | 31 | 28 | 23 | 22 | 22 | 20 | 18 | 15 |
| 300m | 27 | 24 | 18 | 18 | 18 | 17 | 15 | 12 |
| Valley | 25 | 21 | 17 | 17 | 16 | 14 | 14 | 12 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
5°
|
5°
|
5°
|
5°
|
5°
|
4°
|
3°
|
2°
|
| 300m |
7°
|
7°
|
7°
|
7°
|
7°
|
7°
|
5°
|
5°
|
| Valley |
8°
|
7°
|
7°
|
7°
|
8°
|
7°
|
5°
|
5°
|
| Freezing Level |
1,400m
|
1,400m
|
1,400m
|
1,400m
|
1,300m
|
1,200m
|
1,100m
|
1,000m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
0°
|
0°
|
0°
|
0°
|
0°
|
0°
|
-1°
|
-2°
|
| 300m |
4°
|
4°
|
4°
|
4°
|
4°
|
4°
|
2°
|
2°
|
| Valley |
5°
|
5°
|
5°
|
5°
|
6°
|
5°
|
3°
|
3°
|
Additional weather information
Meteorologist's view
Nothing to add
Weather
Most of the day will be overcast with spells of rain. Drier and somewhat clearer weather will spread from the south after dark.
Chance of cloud-free hill tops
20%, best chance in the evening
Low cloud and visibility
Poor in extensive cloud down to 500 to 700 metres, this thinning and breaking after dark
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 15.4mm | 23.4mm | 24.2mm |
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
Another rather cloudy day with outbreaks of rain, some drier spells more especially in the morning. Cold, very strong southeasterly winds with higher summit gales.
Chance of cloud-free hill tops
50%, best chance of clear summits across the north of the Park
Maximum wind speed expected
Southeasterly average speeds of 35 mph with gusts to 50 mph on the highest tops
Temperature
- At 600m Plus 4 Celsius
- Valley Plus 3 rising to 6 Celsius
- Freezing level Above the summits
Low cloud and visibility
Poor in areas of cloud down to 750 metres, this becoming more extensive in any longer spells of rain
Mountain weather information
Sat 24 Jan
Sunrise:
Sunset:
Cold, cloudy and windy with occasional rain. Strong southeasterly winds.
Sun 25 Jan
Sunrise:
Sunset:
Mainly dry with light winds and variable cloud cover.
Mon 26 Jan
Sunrise:
Sunset:
Dry with variable amounts of cloud.
Updated at:
Summit specific forecast
Mountain summit forecast map
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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.