Belfast weather
Loading live data…Light drizzle,rain likely tomorrow
Met Office, the European and the American model agree on a high near 20° in Belfast today. Tomorrow looks heavy drizzle around 16°, with a 85% chance of rain.
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 models14-day forecast
where the models agree, and where they splitBelfast, Northern Ireland. Below we compare what Met Office, European, American forecast for Belfast right now and flag exactly where they disagree, then break down Belfast's weather month by month and which forecast model has been most accurate here.
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.
Belfast weather by month
what to expect in Belfast through the yearHere is Belfast's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Belfast by season.
What Belfast's weather is like through the year
Belfast runs from warm summers, with June highs near 18°C, to cool winters, when January lows sit around 3°C (a swing of about 15°C across the year). July is usually the wettest month, and Belfast sees roughly 1125 mm of precipitation annually.
Best time to visit Belfast
The most comfortable time to visit Belfast is usually May, June, August and September, when daytime highs sit in the pleasant 16-26°C range and the heaviest July rain is behind you.
Which 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 1880 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.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Belfast, scoring 96/100 on our CheckWeather Score, ahead of the Met Office at 86. See the full UK accuracy scoreboard for exactly how every model is tested.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain — and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.