Belfast weather
Loading live data…Latest for Belfast: Met Office (UKMO model): 18° Mainly clear · European (ECMWF): 18° Partly cloudy · American (NOAA GFS): 14° Clear.
The weather map: all three models at once
Met Office, European, American side by side around Belfast and nearby towns.Live rain radar →Next 14 hours
consensus of the three models7-day forecast
where the models agree, and where they splitBelfast, NIR is at its warmest in Jun (average highs near 18°C) and coldest in Jan (lows around 3°C), with roughly 1125 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Belfast right now, and see exactly where they disagree.
Belfast climate by month
average daytime high and overnight low across a typical yearWhich forecast is most accurate in Belfast?
CheckWeather Score — graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.
Common questions
What's the weather in Belfast today?
Will it rain in Belfast today or tomorrow?
Which forecast is most accurate for Belfast?
What is the warmest month in Belfast?
How cold does Belfast get?
How much rain does Belfast get?
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.