Mountain weather
Bannau Brycheiniog / Brecon Beacons Mountain weather forecast table
Confidence
High for the general story over the next few days. Slight uncertainty in the timing of the rain arriving late on Wednesday, give or take an hour or two. Easter weekend looks very unsettled but there is a lot of uncertainty in the details at this stage.
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
Mostly dry with light winds. Evening rain. Mild.
| 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% | 80% | 30% |
Wind direction and speed (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
W
8
|
W
11
|
W
12
|
W
13
|
W
12
|
NW
13
|
| 300m |
SW
5
|
W
8
|
W
9
|
W
10
|
W
9
|
NW
8
|
| Valley |
W
4
|
W
7
|
W
8
|
W
10
|
W
8
|
NW
8
|
Wind gust (mph)
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m | 12 | 15 | 17 | 19 | 17 | 19 |
| 300m | 11 | 14 | 17 | 19 | 17 | 16 |
| Valley | 11 | 14 | 16 | 19 | 16 | 17 |
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
5°
|
5°
|
7°
|
7°
|
7°
|
5°
|
| 300m |
7°
|
8°
|
10°
|
10°
|
10°
|
7°
|
| Valley |
7°
|
9°
|
11°
|
11°
|
10°
|
8°
|
| Freezing Level |
1,300m
|
1,200m
|
1,400m
|
1,500m
|
1,800m
|
1,500m
|
Altitude above mean sea level
| Time | 06:00 | 09:00 | 12:00 | 15:00 | 18:00 | 21:00 |
|---|---|---|---|---|---|---|
| 600m |
2°
|
2°
|
4°
|
4°
|
4°
|
0°
|
| 300m |
5°
|
6°
|
8°
|
8°
|
8°
|
4°
|
| Valley |
6°
|
7°
|
9°
|
9°
|
8°
|
5°
|
Additional weather information
Meteorologist's view
Good hillwalking conditions during the day once early cloud clears from the tops. Some rain late in the day.
Weather
A largely dry day with some bright or sunny intervals and the odd light shower. A band of thicker cloud and outbreaks of light rain will move southeast over the area early in the evening.
Chance of cloud-free hill tops
90%, becoming 30% for a couple of hours early evening.
Low cloud and visibility
Patchy cloud above 400m at first, mainly in the west. Cloud lifting and breaking in the morning to leave good visibility across all hills but becoming extensive above 400m for a couple of hours in the evening.
Recent rainfall
Location: Neuadd (Near Pontsticill)
Altitude: 353m
| Last 24 hours | Last 48 hours | Last 72 hours |
|---|---|---|
| 0mm | 0mm | 8.2mm |
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
Clear spells overnight with a frost in places. A dry day with bright or sunny spells and light winds. Cloud increasing through the evening to bring a little rain by midnight.
Chance of cloud-free hill tops
90%.
Maximum wind speed expected
West or Southwest 5-10mph, increasing to 15mph gusts 25mph in evening.
Temperature
- At 600m Plus 2C rising to 6C.
- Valley Plus 1C rising to 12C.
- Freezing level Above summits.
Low cloud and visibility
Mainly excellent visibility with any cloud above the tops.
Mountain weather information
Fri 3 Apr
Sunrise:
Sunset:
Rain overnight and in the morning then becoming brighter with a few showers. Strong southwest winds on the tops. Freezing level above summits.
Sat 4 Apr
Sunrise:
Sunset:
Unsettled with rain or showers, heavy at times. Strong winds with a chance of gales. Freezing level above summits.
Sun 5 Apr
Sunrise:
Sunset:
Brighter and colder with some showers, perhaps wintry on the tops. Strong westerly 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.