Spring (March–May): Average 7.4–13.1°C, cool and humid climate with occasional showers. March and April can be rather chilly. Popular activities: Exploring city attractions, visiting museums, walking along Belfast Harbour. Recommended clothing: Warm jacket, comfortable trousers, raincoat or umbrella.
Summer (June–August): Average 14.9–16.1°C, mild but still humid climate with frequent rainfall. Sunny days are less common. Popular activities: Picnics in city parks, visiting Carrickfergus Castle, exploring the Giant’s Causeway. Recommended clothing: Light jacket, trousers or skirt, comfortable shoes, umbrella.
Autumn (September–November): Average 8.6–14.3°C, cooler temperatures and increased rainfall, with October being the rainiest month. Variable weather conditions with possible strong winds. Popular activities: Visiting Titanic Belfast, appreciating autumn colours, enjoying local cuisine in cosy pubs. Recommended clothing: Waterproof jacket, warm layers, comfortable shoes.
Winter (December–February): Average 6.1–7.6°C, cold and humid climate with moderate rainfall. Frost and snow are possible. Popular activities: Indoor visits to museums, art galleries or theatres, enjoying hot drinks. Recommended clothing: Thick coat, warm layers, scarf, gloves and hat.