Mountain weather

Brecon Beacons

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Brecon Beacons Mountain weather forecast table

Confidence

High confidence for predominantly settled weather, moderate confidence for the number of showers through Tuesday and Wednesday.

This evening forecast

Sunrise:
Sunset:

A dry and fine end to the day. Cloud will generally break up with a clear start to the night expected as temperatures cool off quickly overnight, particularly under clearest skies.

Sunrise:
Sunset:
Mountain hazards

Mountain weather hazards

Hazards apply at or above 300m, reflecting the more severe conditions which can occur at altitude.

hazard 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 start, with sunny spells and the odd shower through the afternoon.

Wind direction and speed (mph)
Altitude above mean sea level
Wind gust (mph)
Altitude above mean sea level

Altitude above mean sea level

Altitude above mean sea level

Additional weather information

Meteorologist's view

Although it will be predominantly dry and bright it will still feel cool when there is more cloud cover. However, the sun will feel strong when it does shine so wear sun protection.

Weather

Chilly but dry overnight with largely clear skies. Through the morning the weather will be fine and dry with variable amounts of cloud. In sunny spells it will feel warm with a medium risk of strong sunlight. Though by lunchtime some rain showers will develop across the region, with conditions clouding over more in and around these isolated showers. Away from any rain, sunny spells will continue through the afternoon. Dry by the evening with further clear spells overnight and fog developing in valleys after dusk.

Chance of cloud-free mountain/hill tops at 600m

60% becoming 90% by mid-afternoon.

Visibility

Visibilities will be good, becoming very good throughout the day as cloud bases lift from 600-900m in the morning to above 900m by mid-afternoon. In and around showers visibilities will temporarily deteriorate as cloud bases drop to 800m. Visibilities may also become poor in fog in valleys from dusk onwards.

Recent rainfall

Location: Neuadd (Near Pontsticill)
Altitude: 353m
Last 24 hoursLast 48 hoursLast 72 hours
0.8mm1.4mm1.6mm
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.

Sunrise:
Sunset:

Mountain weather information

Weather

A cold start with some fog patches in valleys, though these will clear quickly through the morning. Then, a bright day with sunny spells. In the afternoon skies will likely become cloudier with the odd isolated shower developing. Further clear spells expected by the evening and overnight.

Chance of cloud-free mountain/hill tops at 600m

100% becoming 80% by lunchtime.

Maximum wind speed expected

North-easterly 8mph gusts of 15mph.

Temperature

  • At 600m Minus 1 Celsius becoming Plus 4 Celsius.
  • Valley Plus 1 Celsius becoming Plus 10 Celsius.
  • Freezing level 1000m

Visibility

Visibilities will mostly be very good through the day, though it will be poor in any fog to start. Some temporary deteriorations likely in the afternoon in and around showers as cloud bases fall to 700-900m.

Mountain weather information

Thursday 15 April

Sunrise:
Sunset:

A cold start but otherwise a dry and bright day with the best of the sunshine in the morning. Freezing level 900m, light easterly winds

Friday 16 April

Sunrise:
Sunset:

Another cold start with plenty of sunny spells through the day. Freezing level 800m, light south-easterly winds.

Saturday 17 April

Sunrise:
Sunset:

A dry and bright day following a chillier start. Freezing level 800m. Light southerly winds.

Updated at:

The summits of each peak form a long ridge with four of the peaks forming a horseshoe shape around the head of the Taf Fechan River which flows away to the south-east. The Brecon Beacons is said to be named after the ancient practice of lighting signal fires (beacons) on mountains to warn of attacks by invaders, or more recently to commemorate public and national events such as coronations or the Millennium.

For ardent mountain climbers, the Brecon Beacons National Park is among the best that Britain has to offer. While it doesn't have some of the headline-grabbing peaks of Snowdonia or the Scottish Highlands, it fits scores of slightly smaller mountains into its relatively compact 519 square mile area. These include the area's highest peak, Pen y Fan, as well as the marginally smaller Corn Du (873 metres). Both offer rather hospitable, anvil-shaped summits to those who reach the top, with plenty of space for rest and photographs, before tackling the descent.