Met Office, European, American side by side around Merthyr Tydfil and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
Merthyr Tydfil, WLS is at its warmest in Jun (average highs near 18°C) and coldest in Jan (lows around 2°C), with roughly 2071 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Merthyr Tydfil right now, and see exactly where they disagree.
Merthyr Tydfil climate by month
average daytime high and overnight low across a typical year
Jan
7°
2°
Feb
9°
4°
Mar
9°
4°
Apr
11°
5°
May
16°
9°
Jun
18°
11°
Jul
18°
12°
Aug
18°
12°
Sep
17°
12°
Oct
14°
9°
Nov
10°
5°
Dec
8°
5°
Common questions
What's the weather in Merthyr Tydfil today?
On this page we show what Met Office, European, American each forecast for Merthyr Tydfil 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 Merthyr Tydfil today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Merthyr Tydfil 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 Merthyr Tydfil?
No single model is always right. Met Office, European, American each run their own physics, so we line all three up: when they agree the Merthyr Tydfil forecast is reliable, and when they split you should expect surprises. See our tested UK accuracy scoreboard for how the models compare.
What is the warmest month in Merthyr Tydfil?
Jun is typically the warmest month in Merthyr Tydfil, with average highs around 18°C.
How cold does Merthyr Tydfil get?
The coldest month in Merthyr Tydfil is Jan, when overnight lows average about 2°C.
How much rain does Merthyr Tydfil get?
Merthyr Tydfil sees roughly 2071 mm of precipitation a year, with Mar usually the wettest month.
The forecasts Britons check
The Met Office runs Britain's own open model, so its data sits right in the comparison above. BBC Weather and AccuWeather keep theirs closed, so we link you to them. Good news: BBC is moving back to the Met Office model, so it'll join the comparison too.