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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Reading Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Belfast’s weather today, as shown in the live forecast above, is typical of its maritime climate: changeable and often mild, with the chance of showers never far away. Expect a mix of cloud and brighter spells, with temperatures in line with seasonal averages.
What is the weather usually like in Belfast?
Belfast has a temperate maritime climate, meaning winters are cool and damp rather than freezing, and summers are mild. Rainfall is spread fairly evenly throughout the year, though you can often find a few dry hours even on the wettest days. The city’s position at the head of Belfast Lough means it can feel a little breezy at times, but it’s generally less exposed than the north coast.
Does it rain a lot in Belfast?
It does rain regularly, but not as heavily as some might think. Belfast receives around 950mm of rain annually, which is less than many western UK cities like Glasgow or Cardiff. The key is that rain often arrives as light, intermittent drizzle rather than heavy downpours, so a light waterproof jacket is your best companion year-round.
What is the best time to visit Belfast for good weather?
Late spring (May to early June) tends to offer the best balance of mild temperatures, longer daylight hours, and lower rainfall. July and August are warmer but can be more unsettled, with heavier showers.
Is Belfast often foggy?
Fog is fairly common in autumn and winter, particularly in the morning. It usually clears by late morning as the land warms up. The lough can also produce a localised sea fret at times, especially when the air is cool.
How accurate are BBC weather forecasts for Belfast?
Short-term forecasts (1–3 days) are generally reliable for Belfast, giving a good indication of rain timing and temperature. Longer-range forecasts become less precise due to the changeable nature of the Irish Sea weather systems.
Sources
For a look at how conditions compare across the UK, visit our UK weather hub. You can also check the outlook for Glasgow Weather or see the 10 Day Weather Forecast UK for a longer view.