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Brecon Beacons weather

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Met OfficeUKMO model
8°
Overcast
Feels 5° · Wind 9 mph · Humidity 90%
EuropeanECMWF
8°
Overcast
Feels 4° · Wind 14 mph · Humidity 93%
AmericanNOAA GFS
8°
Overcast
Feels 5° · Wind 11 mph · Humidity 94%

Latest for Brecon Beacons: Met Office (UKMO model): 8° Overcast · European (ECMWF): 8° Overcast · American (NOAA GFS): 8° Overcast.

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Brecon Beacons weather warnings

Met Office yellow, amber and red warnings for Wales

Checking the Met Office for warnings in force for Wales…

Brecon Beacons weather in numbers

measured normals and 10 years of recorded weather

Brecon Beacons swings 17°C across the year, from 19°C highs in August to 2°C lows in January, and December is usually the wettest month in a year that brings about 1319 mm of precipitation. Over 10 years of recorded weather it averages 6 days a year at 25°C or above, 31 frost nights, and rain on 176 days.

Warmest month
August
19°C average high
Coldest month
January
2°C average low
Wettest month
December
1319 mm a year
Comfortable
4 months
June, July, August and September
Most accurate here
European
95/100 CheckWeather Score
Warm days
6 days
a year at 25°C or above
Frost nights
31 nights
a year below 0°C
Rain days
176 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Brecon Beacons’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Met Office, European, American side by side around Brecon Beacons and nearby towns.Live rain radar →
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Brecon Beacons hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Brecon Beacons 10-day forecast, out to 14 days

where the models agree, and where they split

Brecon Beacons, Wales is at its warmest in Aug (average highs near 19°C) and coldest in Jan (lows around 2°C), with roughly 1319 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Brecon Beacons right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

Brecon Beacons climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
7°
2°
Feb
7°
2°
Mar
8°
3°
Apr
11°
5°
May
15°
6°
Jun
18°
10°
Jul
18°
12°
Aug
19°
12°
Sep
17°
10°
Oct
13°
8°
Nov
10°
5°
Dec
7°
3°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Brecon Beacons has changed since 1995

Brecon Beacons sits in the same roughly 50 km square of NASA's reanalysis as Ebbw Vale. That square ran 0.5°C warmer in 2015-2024 than in 1995-2004. See the full 30-year picture on the Ebbw Vale page.

Which forecast is most accurate in Brecon Beacons?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
95
/100rank #1
99±0.1°C98±0.7 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
83
/100rank #2
88±0.7°C90±3.1 mph7184% hitNOAA / NCEP (United States)College Park, Maryland, USA
Met Office logo
Met Office
77
/100rank #3
90±0.6°C84±4.9 mph5877% hitMet Office (United Kingdom)Exeter, United Kingdom

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1950 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.

Met OfficeUKMO model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Brecon Beacons today?
On this page we show what Met Office, European, American each forecast for Brecon Beacons today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Brecon Beacons today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Brecon Beacons and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Brecon Beacons?
Over the last 30 days, the European model has been the most accurate for Brecon Beacons (CheckWeather Score 95/100), ahead of the American at 83. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Brecon Beacons?
August is typically the warmest month in Brecon Beacons, with average highs around 19°C.
How cold does Brecon Beacons get?
The coldest month in Brecon Beacons is January, when overnight lows average about 2°C.
How much rain does Brecon Beacons get?
Brecon Beacons sees roughly 1319 mm of precipitation a year, with December usually the wettest month.

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