Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for unsettled weather to continue into early next week. Low confidence for precipitation detail on a daily basis.
This evening forecast
Cloudy with outbreaks of rain. Strong east to southeasterly winds easing. Areas of cloud down to 300 metres.
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, drier in the evening
| 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) |
90% | 90% | 90% | 90% | 70% | 50% | 40% | 30% |
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
16
|
E
15
|
E
15
|
E
15
|
SE
14
|
SE
11
|
S
12
|
SE
14
|
| 300m |
E
6
|
E
7
|
E
7
|
E
7
|
E
7
|
SE
5
|
S
5
|
SE
5
|
| Valley |
E
5
|
E
6
|
E
6
|
E
6
|
E
7
|
E
5
|
S
4
|
SE
5
|
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 | 23 | 22 | 22 | 21 | 20 | 15 | 16 | 19 |
| 300m | 16 | 15 | 17 | 15 | 14 | 10 | 13 | 13 |
| Valley | 15 | 15 | 15 | 15 | 14 | 10 | 12 | 11 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
4°
|
4°
|
4°
|
4°
|
5°
|
6°
|
4°
|
4°
|
| 300m |
5°
|
5°
|
6°
|
6°
|
7°
|
8°
|
6°
|
6°
|
| Valley |
6°
|
6°
|
6°
|
6°
|
8°
|
9°
|
7°
|
6°
|
| Freezing Level |
1,400m
|
1,400m
|
1,400m
|
1,400m
|
1,500m
|
1,500m
|
1,400m
|
1,300m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
-1°
|
-1°
|
-1°
|
0°
|
1°
|
2°
|
1°
|
0°
|
| 300m |
3°
|
3°
|
3°
|
3°
|
5°
|
6°
|
5°
|
4°
|
| Valley |
4°
|
4°
|
4°
|
4°
|
6°
|
7°
|
6°
|
5°
|
Additional weather information
Meteorologist's view
Nothing to add
Weather
Cloudy throughout with spells of rain for much of the day. Drier weather will spread from the south in the evening.
Chance of cloud-free hill tops
40%
Low cloud and visibility
Poor in widespread low cloud down to 350 to 600 metres although this becoming somewhat more broken at times through the afternoon and evening.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 11.6mm | 12.6mm | 13.6mm |
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
Another cloudy with outbreaks of rain, but some drier spells of weather expected too.
Chance of cloud-free hill tops
40%, no particular area of the Brecon Beacons favoured for breaks
Maximum wind speed expected
Southeasterly 20 mph
Temperature
- At 600m Plus 5 Celsius
- Valley Plus 5 rising to 9 Celsius
- Freezing level Above the summits
Low cloud and visibility
Poor in extensive low cloud down to 600 to 800 metres shrouding the higher tops
Mountain weather information
Sun 8 Feb
Sunrise:
Sunset:
Mainly dry with broken cloud and just the odd shower. Light winds.
Mon 9 Feb
Sunrise:
Sunset:
Cloudy with rain spreading from the southwest later in the day. Strengthening southeasterly winds.
Tue 10 Feb
Sunrise:
Sunset:
Remaining unsettled with further spells of rain.
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.