Mountain weather
Bannau Brycheiniog / Brecon Beacons
Confidence
High for a settled weekend with winds gradually easing. Moderate to low in terms of rain and shower details next week.
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This eveningSunrise:Sunset:
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Sun 14 JunSunrise:Sunset:
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Mon 15 JunSunrise:Sunset:
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Further outlook
This evening forecast
A fine and dry evening with late sunshine.
Mountain weather hazards
Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.
Strong Sunlight
Mountain weather forecast
Fine and dry with sunny spells and lighter winds.
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Time
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Time |
00:00
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03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
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Weather
(at 800m)
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Weather symbols | ||||||||
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Chance of
precipitation (at 800m)
|
Chance of precipitation |
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
Wind direction and speed
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Time
|
Time |
00:00
|
03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | W 9mph knots
W
9mph |
N 6mph knots
N
6mph |
N 7mph knots
N
7mph |
NE 5mph knots
NE
5mph |
N 3mph knots
N
3mph |
N 4mph knots
N
4mph |
E 7mph knots
E
7mph |
E 10mph knots
E
10mph |
|
300m
|
300m | SW 4mph knots
SW
4mph |
SW 3mph knots
SW
3mph |
W 1mph knots
W
1mph |
NE 3mph knots
NE
3mph |
NE 3mph knots
NE
3mph |
NE 4mph knots
NE
4mph |
E 7mph knots
E
7mph |
E 6mph knots
E
6mph |
|
Valley
|
Valley | W 3mph knots
W
3mph |
W 3mph knots
W
3mph |
NW 2mph knots
NW
2mph |
NE 2mph knots
NE
2mph |
NE 4mph knots
NE
4mph |
SE 4mph knots
SE
4mph |
SE 6mph knots
SE
6mph |
E 6mph knots
E
6mph |
Wind gust
|
Time
|
Time |
00:00
|
03:00
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06:00
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09:00
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12:00
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15:00
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18:00
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21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 12mph | 8mph | 9mph | 8mph | 7mph | 7mph | 11mph | 16mph |
|
300m
|
300m | 9mph | 5mph | 4mph | 6mph | 6mph | 8mph | 12mph | 12mph |
|
Valley
|
Valley | 8mph | 5mph | 5mph | 6mph | 8mph | 8mph | 11mph | 13mph |
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
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12:00
|
15:00
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18:00
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21:00
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|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C | 9 degrees Celsius 9°C | 12 degrees Celsius 12°C | 15 degrees Celsius 15°C | 17 degrees Celsius 17°C | 16 degrees Celsius 16°C | 12 degrees Celsius 12°C |
|
300m
|
300m | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 11 degrees Celsius 11°C | 14 degrees Celsius 14°C | 18 degrees Celsius 18°C | 19 degrees Celsius 19°C | 18 degrees Celsius 18°C | 14 degrees Celsius 14°C |
|
Valley
|
Valley | 9 degrees Celsius 9°C | 8 degrees Celsius 8°C | 11 degrees Celsius 11°C | 15 degrees Celsius 15°C | 19 degrees Celsius 19°C | 20 degrees Celsius 20°C | 19 degrees Celsius 19°C | 14 degrees Celsius 14°C |
| Freezing Level | Freezing Level |
2700m
|
2700m
|
2700m
|
2700m
|
2700m
|
2800m
|
2900m
|
2900m
|
|
Time
|
Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|
|
600m
|
600m | 6 degrees Celsius 6°C | 6 degrees Celsius 6°C | 7 degrees Celsius 7°C | 11 degrees Celsius 11°C | 15 degrees Celsius 15°C | 17 degrees Celsius 17°C | 15 degrees Celsius 15°C | 10 degrees Celsius 10°C |
|
300m
|
300m | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C | 11 degrees Celsius 11°C | 14 degrees Celsius 14°C | 18 degrees Celsius 18°C | 19 degrees Celsius 19°C | 17 degrees Celsius 17°C | 13 degrees Celsius 13°C |
|
Valley
|
Valley | 8 degrees Celsius 8°C | 7 degrees Celsius 7°C | 11 degrees Celsius 11°C | 15 degrees Celsius 15°C | 18 degrees Celsius 18°C | 20 degrees Celsius 20°C | 19 degrees Celsius 19°C | 14 degrees Celsius 14°C |
| Freezing Level | Freezing Level |
2700m
|
2700m
|
2700m
|
2700m
|
2700m
|
2800m
|
2900m
|
2900m
|
Additional weather information
Meteorologist's view
UV protection required with strong sunshine and plenty of hydration.
Weather
Any early mist of fog patches soon clearing, then a generally fine day with bright skies and periods of hazy sunshine. Lighter winds and feeling warm in the strong sunshine.
Chance of cloud-free hill tops
95%
Low cloud and visibility
Early fog patches, otherwise cloud will be above summits. Generally very good visibility with excellent air clarity and distant views of far-away mountains and landmarks but occasionally very poor in cloud/hill fog.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Weather
Most likely remaining dry and warm with a mixture of cloud and bright or sunny spells. A low chance of a shower or thunderstorm later in the day. Moderate to fresh easterly winds on the summits.
Chance of cloud-free hill tops
80%
Maximum wind speed expected
Southeasterly 25-30 mph.
Temperature
- At 600m 9 Celsius rising to 17 Celsius.
- Valley 15 Celsius rising to plus 20 Celsius.
- Freezing level Above summits.
Low cloud and visibility
Patches banks of cloud hovering around summits, but mainly lifting to above. Generally very good visibility, poor in any thunderstorms that may develop.
Ground conditions
No recent ground conditions report available.
Mountain weather information
Tue 16 Jun
Uncertainty in the details but a cooler day is likely with a greater likelihood of hill fog and scattered showers. A small chance of more general rain, perhaps heavy, developing in places. Winds becoming moderate to fresh southerly or southwesterly.
Wed 17 Jun
Often cloudy with hill fog and showery rain. Feeling humid. Moderate southwesterly.
Thu 18 Jun
Another cloudy day with drizzle.
Summit specific forecast
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.