Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for changeable weather to continue into the weekend with further rain at times
This evening forecast
Cold, cloudy and windy with occasional light rain. Extensive cloud down to 600 to 800 metres, but broken across the west of the Park.
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.
Heavy Persistent Rain
Heavy and persistent rain can lead to drenched clothing and footwear with waterproofs often becoming soaked through, especially if accompanied by strong winds. This can lead to significant loss of body heat and an increased likelihood of hypothermia. Terrain may turn increasingly boggy underfoot while streams can flood and become impassable. There may also be a risk of flooding in valleys or glens. If there is snow cover, a heightened avalanche hazard is possible and avalanche reports should be consulted where available.
Mountain weather forecast
Overcast with rain, cold summit winds
| 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% | 80% | 80% | >95% | >95% | 50% | >95% | >95% |
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 |
E
21
|
E
23
|
E
23
|
E
21
|
E
19
|
E
17
|
E
17
|
E
17
|
| 300m |
E
13
|
E
14
|
E
14
|
E
14
|
E
13
|
E
11
|
E
11
|
E
11
|
| Valley |
E
12
|
E
13
|
E
13
|
E
13
|
E
12
|
E
11
|
E
10
|
E
10
|
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 | 32 | 34 | 34 | 32 | 29 | 26 | 26 | 26 |
| 300m | 26 | 29 | 28 | 28 | 25 | 21 | 22 | 21 |
| Valley | 26 | 29 | 29 | 27 | 23 | 22 | 22 | 22 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
3°
|
3°
|
2°
|
2°
|
3°
|
3°
|
3°
|
3°
|
| 300m |
5°
|
5°
|
4°
|
4°
|
5°
|
5°
|
5°
|
5°
|
| Valley |
6°
|
6°
|
5°
|
5°
|
6°
|
6°
|
6°
|
6°
|
| Freezing Level |
1,100m
|
1,100m
|
1,000m
|
1,000m
|
1,200m
|
1,400m
|
1,500m
|
1,400m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-3°
|
-4°
|
-4°
|
-4°
|
-3°
|
-2°
|
-2°
|
-2°
|
| 300m |
1°
|
1°
|
0°
|
0°
|
1°
|
2°
|
2°
|
2°
|
| Valley |
2°
|
2°
|
1°
|
1°
|
2°
|
3°
|
3°
|
3°
|
Additional weather information
Meteorologist's view
Strong summit winds will lead to wind chill along with drenching conditions in rain. Watercourses may be flooded.
Weather
An overcast day with rain and some sleet or wet snow above 900 metres. Rain may become lighter for a time mid-afternoon before turning persistent and heavy by evening.
Chance of cloud-free hill tops
30%
Low cloud and visibility
Poor in extensive low cloud down to 500 to 800 metres, lowest bases across the east of the Park.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 1mm | 2mm | 2.6mm |
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
Overcast with rain, this most persistent and heaviest across the east of the Park. Rain somewhat lighter and more intermittent across the west of the area.
Chance of cloud-free hill tops
30%, best chance in the west of the area
Maximum wind speed expected
Easterly 20 mph
Temperature
- At 600m Plus 4 Celsius
- Valley Plus 4 rising 6 Celsius
- Freezing level Above the summits
Low cloud and visibility
Poor in extensive low cloud down to 600 to 800 metres, lowest bases in the south of the area
Mountain weather information
Sat 7 Feb
Sunrise:
Sunset:
Dry and cloudy for most of the day but rain likely to spread north by evening.
Sun 8 Feb
Sunrise:
Sunset:
Cloudy with further spells of rain. Light winds.
Mon 9 Feb
Sunrise:
Sunset:
A drier day with variable amounts of cloud and chance of a few showers. Light winds.
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.