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CheckWeather UKCwmafan

Cwmafan weather

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Cwmafan weather warnings

Met Office yellow, amber and red warnings for Wales

Checking the Met Office for warnings in force for Wales…

Cwmafan weather in numbers

from 30 years of measured normals

Cwmafan swings 17°C across the year, from 19°C highs in June to 2°C lows in January, and December is usually the wettest month in a year that brings about 2143 mm of precipitation.

Warmest month
June
19°C average high
Coldest month
January
2°C average low
Wettest month
December
2143 mm a year
Below freezing
Never
overnight lows stay above 0°C
Comfortable
4 months
May, June, July and August
Residents
5,336
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The weather map: all three models at once

Met Office, European, American side by side around Cwmafan and nearby towns.Live rain radar →
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Cwmafan 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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Cwmafan 10-day forecast, out to 14 days

where the models agree, and where they split

Cwmafan, Wales is at its warmest in Jun (average highs near 19°C) and coldest in Jan (lows around 2°C), with roughly 2143 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Cwmafan 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.

Cwmafan climate by month

average daytime high and overnight low across a typical year
Jan
Feb
Mar
10°
Apr
12°
May
17°
Jun
19°
11°
Jul
18°
12°
Aug
18°
13°
Sep
18°
12°
Oct
14°
10°
Nov
10°
Dec

Which forecast is most accurate in Cwmafan?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
90
/100rank #1
93±0.4°C98±0.7 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
Met Office logo
Met Office
82
/100rank #2
87±0.7°C96±1.1 mph6581% hitMet Office (United Kingdom)Exeter, United Kingdom
American logo
American
81
/100rank #3
84±0.9°C85±4.6 mph7687% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1887 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 Cwmafan today?
On this page we show what Met Office, European, American each forecast for Cwmafan 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 Cwmafan today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Cwmafan 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 Cwmafan?
Over the last 30 days, the European model has been the most accurate for Cwmafan (CheckWeather Score 90/100), ahead of the Met Office at 82. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Cwmafan?
June is typically the warmest month in Cwmafan, with average highs around 19°C.
How cold does Cwmafan get?
The coldest month in Cwmafan is January, when overnight lows average about 2°C.
How much rain does Cwmafan get?
Cwmafan sees roughly 2143 mm of precipitation a year, with December usually the wettest month.

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