Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for a more settled day through tomorrow. Low for extent of sea fog later Wednesday. High for return to more unsettled weather from Thursday.
This evening forecast
Remaining dry and bright with sunshine turning hazy at times. Clear spells after dusk.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.
Mountain weather forecast
A fine and dry day ahead, feeling warm in the sunshine.
| 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% | <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 |
S
9
|
W
5
|
NW
4
|
NW
4
|
W
6
|
W
8
|
W
8
|
SW
6
|
| 300m |
S
3
|
SW
3
|
SW
2
|
NE
2
|
W
4
|
W
6
|
W
6
|
SW
4
|
| Valley |
S
3
|
SW
4
|
W
3
|
NE
2
|
W
4
|
W
6
|
W
5
|
W
2
|
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 | 11 | 6 | 6 | 6 | 8 | 12 | 11 | 9 |
| 300m | 8 | 4 | 3 | 4 | 7 | 11 | 11 | 8 |
| Valley | 5 | 5 | 4 | 4 | 8 | 12 | 11 | 7 |
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
11°
|
10°
|
10°
|
13°
|
15°
|
16°
|
14°
|
11°
|
| 300m |
10°
|
8°
|
8°
|
14°
|
18°
|
20°
|
16°
|
11°
|
| Valley |
10°
|
8°
|
9°
|
15°
|
19°
|
20°
|
16°
|
11°
|
| Freezing Level |
2,600m
|
2,600m
|
2,600m
|
2,600m
|
2,600m
|
2,500m
|
2,500m
|
2,600m
|
Altitude above mean sea level
| Time | 00:00 | 03:00 | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|---|---|
| 600m |
10°
|
9°
|
9°
|
12°
|
14°
|
15°
|
13°
|
10°
|
| 300m |
9°
|
8°
|
8°
|
14°
|
18°
|
19°
|
16°
|
11°
|
| Valley |
9°
|
8°
|
8°
|
15°
|
19°
|
19°
|
16°
|
11°
|
Additional weather information
Meteorologist's view
Conditions will be very good across the hills for any outdoor activities. Despite the chance of some medium or high level cloud through the second part of the day it will feel warm in the sunshine and light winds. This will increase the UV levels so sun protection is suggested as well as sufficient water.
Weather
A dry and bright day ahead with plenty of sunshine. Some patches of mist and fog possible in the valleys to start but should quickly clear away after sunrise. A fine day to follow feeling warm in the sunshine as the day progresses. Some medium-level cloud potentially push eastwards through the late afternoon and evening turning sunshine hazy at times. After sunset there is the potential that a band of low cloud or sea fog will make sufficient eastward progression to affect some low-lying areas.
Chance of cloud-free hill tops
90%
Low cloud and visibility
No low cloud is expected and visibilities should be very good.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0.2mm | 5.2mm |
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
More unsettled weather for the day ahead, with cloudy skies to begin, as well as outbreaks of patchy rain. Skies will then brighten somewhat through the afternoon with some sunny spells possible, but with a continued risk of showery outbreaks. Westerly winds increasing once again.
Chance of cloud-free hill tops
20% chance rising to 80% through the afternoon.
Maximum wind speed expected
Westerly 20-35 mph.
Temperature
- At 600m Plus 8 Celsius, falling to plus 4 Celsius through the afternoon.
- Valley Plus 8 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Patchy cloud bases around 600-800m at first, becoming more widespread soon after dawn. Cloud then rising above the summits through the afternoon, with very good visibility expected, risk of visibility dropping for a time in any showers.
Mountain weather information
Fri 10 Apr
Sunrise:
Sunset:
Another rather cloudy day ahead, with patchy rain or drizzle likely through the first part of the day. Brisk winds throughout. Freezing level above summits.
Sat 11 Apr
Sunrise:
Sunset:
Overnight persistent rain clearing eastward to leave a day of sunny spells and scattered showers, some of which may be heavy at times. With a low risk of the odd rumble of thunder through the afternoon.
Sun 12 Apr
Sunrise:
Sunset:
A chilly start with a continuation of sunny spells and scattered showers, showers once again have the potential to be heavy at times, with the odd rumble of thunder possible.
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.