Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
Confidence generally high for the next few days but lower for cloud details. There is also some uncertainty in the timing of the rain clearing southeast on Tuesday and for rain arriving later on Thursday.
This evening forecast
A dry evening with clear spells and light and variable winds.
Mountain weather forecast
A bright morning then cloudier afternoon with patchy rain later. Light 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) |
00% | 00% | 00% | 00% | 00% | 30% | 60% | 60% |
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 |
SW
3
|
W
4
|
W
4
|
NW
4
|
NW
5
|
NW
8
|
N
8
|
N
9
|
| 300m |
SW
3
|
SW
3
|
SW
3
|
W
2
|
NW
5
|
NW
6
|
NW
5
|
NW
3
|
| Valley |
NW
2
|
W
3
|
W
3
|
W
3
|
NW
5
|
NW
6
|
NW
5
|
N
4
|
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 | 4 | 7 | 6 | 6 | 8 | 12 | 12 | 13 |
| 300m | 3 | 6 | 5 | 4 | 8 | 10 | 10 | 9 |
| Valley | 3 | 6 | 5 | 5 | 9 | 11 | 11 | 10 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
6°
|
5°
|
4°
|
6°
|
9°
|
8°
|
7°
|
5°
|
| 300m |
5°
|
4°
|
3°
|
8°
|
12°
|
11°
|
9°
|
7°
|
| Valley |
5°
|
4°
|
3°
|
9°
|
12°
|
12°
|
10°
|
8°
|
| Freezing Level |
1,800m
|
1,700m
|
1,100m
|
1,000m
|
1,000m
|
1,100m
|
1,800m
|
1,800m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
5°
|
3°
|
2°
|
5°
|
8°
|
6°
|
4°
|
2°
|
| 300m |
4°
|
3°
|
1°
|
8°
|
11°
|
10°
|
8°
|
6°
|
| Valley |
4°
|
3°
|
2°
|
8°
|
11°
|
10°
|
8°
|
6°
|
Additional weather information
Meteorologist's view
Good hillwalking conditions on Sunday but some light rain possible for those finishing their walks late in the day.
Weather
Dry with clear skies overnight leading to some patchy frost and fog in the valleys. This clearing then a bright morning with sunny spells. Cloud increasing in the afternoon with some patchy rain arriving later. Rain clearing away south late in the evening.
Chance of cloud-free hill tops
90%, becoming 30% for a time in the evening.
Low cloud and visibility
Patchy fog in the valleys at first, otherwise visibility will be mainly good during the day. Some patchy cloud developing on the tops in the evening.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0mm | 0mm |
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 clear night with a frost then a dry and bright day with hazy sunny spells.
Chance of cloud-free hill tops
90%.
Maximum wind speed expected
Variable 5-10mph increasing Southwest 20 mph gusts 30mph later.
Temperature
- At 600m Plus 2C rising to 8C.
- Valley Plus 2C rising to 12 or 13C.
- Freezing level Above summits.
Low cloud and visibility
Mainly good visibility. Some patchy cloud developing above 600m late in the evening.
Mountain weather information
Tue 24 Mar
Sunrise:
Sunset:
Outbreaks of rain arriving in the morning, heavy at times, then clearing southeast during the afternoon. Colder conditions following with scattered showers, turning wintry later. Strong to gale force southwest winds becoming northwesterly. Freezing level above summits, falling to 800m later.
Wed 25 Mar
Sunrise:
Sunset:
A much colder day with bright spells and a few sleet or snow showers. Strong northwesterly winds and a severe wind chill on the tops. Freezing level 500m.
Thu 26 Mar
Sunrise:
Sunset:
Wintry showers dying out overnight then a mainly dry and bright start with lighter winds. Outbreaks of rain and strong winds are likely to spread in from the west but some uncertainty in timings.
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.