Northern Ireland Weather, climate and geography

Weather & climate

Best time to visit

In general, the weather is similar to the rest of the UK, but Northern Ireland tends to have less sunshine and more rain. The hilly nature of the terrain tends to attract clouds, and westerly winds are common in some areas. Extremes of temperature are rare but conditions can be changeable. In broad terms, however, it has an equable climate – the effects of the Atlantic Gulf Stream have a moderating influence, leading to mild winters and relatively cool summers. The mean annual temperature in Northern Ireland at low-lying altitude is around 9°C.

The height of summer draws the largest numbers of tourists, particularly to headline attractions such as Giant’s Causeway, so it can be advisable to come in spring or autumn to make the most of the reduction in visitors.

Required clothing

Similar to the rest of the UK, according to season. Waterproofs are advisable throughout the year. If you find yourself lacking any vital wardrobe items on arrival – formal or informal – all key towns and cities are well stocked with clothing outlets, with the larger cities particularly good in terms of picking up high quality outdoor equipment. Camping essentials are also straightforward to come by.

Visa and passport information is updated regularly and is correct at the time of publishing. You should verify critical travel information independently with the relevant embassy before you travel.