Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for dry and settled conditions. Medium at best for cloud details.
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
Low cloud lifting. Light winds.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 600m) |
|
|
|
|
|
|
Chance of precipitation (at 600m) |
10% | 10% | 10% | 10% | 10% | 10% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
E
13
|
E
13
|
E
12
|
E
11
|
E
10
|
E
12
|
| 300m |
E
4
|
E
5
|
E
7
|
E
6
|
E
4
|
E
4
|
| Valley |
E
3
|
E
3
|
E
6
|
E
5
|
E
4
|
E
4
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 20 | 18 | 16 | 15 | 16 | 17 |
| 300m | 9 | 10 | 12 | 11 | 12 | 11 |
| Valley | 9 | 10 | 12 | 10 | 12 | 11 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
10°
|
11°
|
12°
|
11°
|
10°
|
| 300m |
9°
|
10°
|
13°
|
14°
|
13°
|
12°
|
| Valley |
9°
|
10°
|
14°
|
15°
|
13°
|
12°
|
| Freezing Level |
2,600m
|
2,800m
|
2,900m
|
2,700m
|
2,700m
|
2,700m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
6°
|
7°
|
8°
|
10°
|
9°
|
7°
|
| 300m |
8°
|
9°
|
12°
|
14°
|
12°
|
11°
|
| Valley |
9°
|
10°
|
13°
|
15°
|
13°
|
12°
|
Additional weather information
Meteorologist's view
Note uncertainty around cloud details.
Weather
Extensive low cloud during the morning. The low cloud lifting and perhaps breaking during the day with bright, perhaps sunny spells developing, before lowering again in the evening. A little early drizzle also possible.
Chance of cloud-free hill tops
10% becoming 50% in the afternoon, before lowering again in the evening.
Low cloud and visibility
Extensive low cloud expected at first. Bases could be 300m or less at times, particularly at first, but should tend to lift and break. Visibility generally moderate to very poor at first, becoming mostly good or very good in the afternoon, reducing again in the evening.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0mm | 0.2mm |
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
Similar to Monday, but continuing uncertainty around cloud details. Low cloud probably extensive at first, perhaps a little drizzle. Bright, perhaps sunny spells should develop as any thicker cloud lifts and breaks during the afternoon.
Chance of cloud-free hill tops
40% becoming 80% in the afternoon,
Maximum wind speed expected
East or Northeast 15mph.
Temperature
- At 600m Plus 7 to 11 Celsius
- Valley Plus 7 rising to 16 Celsius
- Freezing level Above the summits
Low cloud and visibility
Occasional or extensive low cloud possible, but details uncertain. Bases could be around 300m at times, particularly early in the day, but should tend to lift and break. Visibility generally moderate to very poor at first, becoming mostly good or very good in the afternoon.
Mountain weather information
Wed 15 Oct
Sunrise:
Sunset:
Dry, although early drizzle possible. Cloud amounts uncertain, but low cloud could be extensive at first, tending to lift and break during the day. Light or moderate east or northeast winds.
Thu 16 Oct
Sunrise:
Sunset:
Dry, although early drizzle possible. Cloud amounts uncertain, but low cloud could be extensive at first, tending to lift and break during the day. Light or moderate east or northeast winds.
Fri 17 Oct
Sunrise:
Sunset:
Dry, although early drizzle possible. Cloud amounts uncertain, but low cloud could be extensive at first, tending to lift and break during the day. Light or moderate easterly 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.