Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High confidence for milder conditions and mostly settled to start the week. Turning windier by midweek with some colder conditions towards the end of the week. Strong winds continuing by the end of the week with significant windchill likely. Uncertainty in timings of any rain and showers.
This evening forecast
A cloudy evening with some outbreaks of drizzle, mist and fog patches are likely to form, perhaps some clearer spells towards the west with fresh northeasterly winds.
Mountain weather forecast
Any early mist and fog patches will lift to leave lovely Spring day with plenty of sunshine, light northeasterly winds turning northwesterly in the afternoon.
| 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) |
<05% | <05% | <05% | <05% | <05% | <05% | <05% | <05% |
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 |
NE
15
|
NE
12
|
NE
10
|
NE
9
|
N
4
|
NW
5
|
NW
9
|
W
7
|
| 300m |
NE
7
|
NE
5
|
NE
3
|
NE
4
|
NE
2
|
NW
4
|
W
7
|
W
4
|
| Valley |
NE
5
|
NE
4
|
N
3
|
NE
3
|
NE
2
|
NW
4
|
NW
7
|
W
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 | 20 | 16 | 14 | 12 | 7 | 8 | 13 | 10 |
| 300m | 14 | 10 | 8 | 8 | 5 | 8 | 13 | 8 |
| Valley | 12 | 9 | 8 | 6 | 5 | 9 | 14 | 11 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
6°
|
4°
|
3°
|
5°
|
8°
|
10°
|
8°
|
5°
|
| 300m |
8°
|
6°
|
5°
|
7°
|
11°
|
14°
|
10°
|
6°
|
| Valley |
8°
|
7°
|
5°
|
8°
|
12°
|
14°
|
11°
|
6°
|
| Freezing Level |
1,800m
|
1,800m
|
1,700m
|
1,600m
|
1,500m
|
1,600m
|
1,600m
|
1,500m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
1°
|
0°
|
0°
|
2°
|
7°
|
9°
|
5°
|
3°
|
| 300m |
6°
|
4°
|
3°
|
6°
|
11°
|
13°
|
8°
|
4°
|
| Valley |
7°
|
6°
|
4°
|
7°
|
12°
|
14°
|
9°
|
5°
|
Additional weather information
Meteorologist's view
Freshening winds later in the day.
Weather
Dry overnight, perhaps some mist and the odd fog patch developing but generally clear and dry in the early hours. Any mist and fog patches will lift to leave a bright and sunny spring day. Winds turning northwesterly and freshening later in the day.
Chance of cloud-free hill tops
90%, perhaps patchy low cloud lingering around summits in the morning,
Low cloud and visibility
Patches of cloud above 500m will lift and burn away in the morning but mainly clear summits for the whole day with very good visibility.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 4.2mm | 4.4mm | 4.4mm |
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
A few showers in the early hours and a risk of some fog at the start of the day. Brightening up with a sunny day likely and mainly dry during daylight hours, fresh northwesterly winds but despite the winds feeling quite mild, especially further east.
Chance of cloud-free hill tops
90%, some early morning patchy cloud
Maximum wind speed expected
Northwesterly 10-15 mph with gust 20-25mph.
Temperature
- At 600m Plus 4 rising to 11 Celsius.
- Valley Plus 8 rising to 14 Celsius.
- Freezing level Above all summits.
Low cloud and visibility
Patchy cloud above 600m in the morning, mostly lifting and clearing by lunchtime. Visibility may be moderate or poor in the morning in mist or very poor in any fog patches, during the day visibility is likely to be very good.
Mountain weather information
Wed 26 Mar
Sunrise:
Sunset:
Fresh or strong southwesterly winds but a mainly dry morning, risk of a few afternoon showers. Freezing level above all summits.
Thu 27 Mar
Sunrise:
Sunset:
Cloudy with some outbreaks of rain or drizzle in the afternoon, strong southwesterly winds, visibility may be poor around western hills. Feeling cooler again.
Fri 28 Mar
Sunrise:
Sunset:
Unsettled with outbreaks of rain but some sunny periods too, strong westerly winds may be a hazard and will add to the cold feel.
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.