Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
Medium
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Poor Visibility
Heavy Persistent Rain
Gales
Thunderstorms
Mountain weather forecast
Cloudy with outbreaks of heavy rain. Windy.
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
Weather (at 600m) |
|
|
|
|
|
|
Chance of precipitation (at 600m) |
80% | 70% | 40% | 70% | 90% | 60% |
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
S
30
|
S
32
|
S
31
|
S
36
|
S
33
|
S
26
|
| 300m |
S
15
|
SW
16
|
S
16
|
S
20
|
S
19
|
S
16
|
| Valley |
S
11
|
SW
13
|
S
13
|
S
15
|
S
17
|
S
14
|
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 37 | 42 | 42 | 47 | 45 | 35 |
| 300m | 32 | 34 | 34 | 40 | 39 | 33 |
| Valley | 30 | 32 | 31 | 36 | 39 | 32 |
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
9°
|
10°
|
10°
|
10°
|
10°
|
10°
|
| 300m |
10°
|
12°
|
13°
|
13°
|
12°
|
12°
|
| Valley |
11°
|
13°
|
13°
|
13°
|
12°
|
12°
|
| Freezing Level |
2,200m
|
2,200m
|
2,200m
|
2,300m
|
2,400m
|
2,300m
|
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
4°
|
5°
|
6°
|
5°
|
6°
|
6°
|
| 300m |
7°
|
9°
|
10°
|
9°
|
9°
|
9°
|
| Valley |
8°
|
10°
|
11°
|
11°
|
10°
|
10°
|
Additional weather information
Meteorologist's view
Nothing further to add.
Weather
Cloudy with outbreaks of rain, heavy at times, during the morning. Perhaps a brief drier interlude around the middle of the day, before further spells of rain, heavy and persistent at times, arrives in the afternoon. Rain gradually easing by late evening.
Chance of cloud-free hill tops
30% overnight and early afternoon, otherwise 10% or less.
Low cloud and visibility
Extensive low cloud, base 300 to 600m, perhaps lifting and breaking a little around the middle of the day. Visibility mainly moderate to very poor, perhaps good at times in the afternoon, mainly lower down.
Recent rainfall
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 7.4mm | 15.6mm | 15.8mm |
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
Mostly cloudy with outbreaks of rain and drizzle, heavy at times, although some drier spells overnight and early morning.
Chance of cloud-free hill tops
30%.
Maximum wind speed expected
South or Southwest 15 to 20mph.
Temperature
- At 600m Plus 6 to 9 Celsius
- Valley Plus 8 to 12 Celsius
- Freezing level Above the summits.
Low cloud and visibility
Occasional or extensive cloud, base 300 to 600m. Moderate to very poor in cloud and rain, but good at times lower down.
Mountain weather information
Thu 13 Nov
Mostly cloudy with outbreaks of rain and drizzle. Light or moderate southwesterly winds at height.
Fri 14 Nov
Cloudy with outbreaks of rain. Gale or severe gale east or northeast winds at height with a severe wind chill and buffeting.
Sat 15 Nov
Cloudy or bright. Occasional rain. Strong to gale force east or northeast winds at height with a severe wind chill and some buffeting.
Summit specific forecast
Mountain summit forecast map
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.