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Northern Ireland

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Northern Ireland Weather and climate

Data source：Meteostat
Update date：2025-09

Northern Ireland year round climate
  • Spring (March–May): Average 5.8–12°C, mild but cool at times, with less rainfall. Common activities: Hiking outdoors, exploring the countryside. Recommended clothing: Light jacket, comfortable trousers, warm base layers.
  • Summer (June–August): Average 11.8–13.5°C, relatively warm but still mild overall, slightly more rainfall than spring. Common activities: Coastal walks, visiting historical sites, enjoying outdoor picnics. Recommended clothing: Light jacket, long-sleeved shirts, comfortable trousers.
  • Autumn (September–November): Average 9.8–7.4°C, temperatures gradually decrease, less rainfall. Common activities: Admiring autumn colours, visiting museums, tasting local cuisine. Recommended clothing: Warm jacket, sweater, trousers.
  • Winter (December–February): Average 6.3–3.9°C, cold temperatures, low rainfall. Common activities: Indoor sightseeing, enjoying hot drinks, experiencing local culture. Recommended clothing: Heavy coat, hat, scarf, gloves.
Northern Ireland climatological average

Annual average temperature: approx. 9.1°C / Annual rainfall: approx. 35 mm / Summer humidity: 60%–70% / Rainiest month: August

Northern Ireland monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
3.9°C
2.5
February
5.9°C
2.8
March
5.8°C
4.1
April
7.5°C
3.7
May
12°C
2.6
June
11.8°C
2.1
July
13.4°C
2.8
August
13.5°C
5.3
September
11.7°C
1.4
October
9.8°C
3.3
November
7.4°C
2.1
December
6.3°C
2.8
Northern Ireland weather for the next seven days
10/11
Saturday
Partly Cloudy
14.3°C/5.8°C
10/12
Sunday
Partly Cloudy
14.5°C/6.4°C
10/13
Monday
Sunny
15.7°C/6.6°C
10/14
Tuesday
Sunny
15.6°C/7.1°C
10/15
Wednesday
Sunny
15°C/6.5°C
10/16
Thursday
Sunny
14.7°C/6.2°C
10/17
Friday
Sunny
14.3°C/6.2°C

Northern Ireland FAQ

Can a US citizen travel to Northern Ireland?
Yes, US citizens can travel to Northern Ireland. You will need to apply for an Electronic Travel Authorisation (ETA) before your trip, as it is a requirement for all travelers to the United Kingdom, including Northern Ireland, who do not hold a visa or residency. The ETA is a digital pre-clearance for short trips and is linked to your passport. Before you travel, check your passport's validity, ensure it is valid for the duration of your stay and has a digital link for the ETA to be attached. Apply online for your ETA before you travel and use the same passport to travel that you used to apply for the ETA.
Is Northern Ireland a good destination for tourists?
Yes, Northern Ireland is absolutely worth visiting, offering a unique blend of spectacular natural landscapes like the Giant's Causeway, vibrant cities such as Belfast and Derry, a rich and complex history, and friendly locals. It is a safe, compact destination perfect for exploring via road trips, with memorable experiences ranging from ancient sites and bustling urban centers to serene lakes and charming coastal towns. Home to the world-famous Giant's Causeway, stunning coastlines like the Causeway Coastal Route, and beautiful natural areas such as the Glens of Antrim and the Mourne Mountains, Northern Ireland's history, including the impact of The Troubles, can be deeply explored in cities like Belfast and Derry, offering a fascinating cultural experience. Explore the capital city of Belfast, known for its historic architecture and cultural sites, and the historic walled city of Derry/Londonderry. Opportunities abound for hiking, cycling, and exploring the dramatic coastlines and natural wonders.
What is the best time of year to visit Northern Ireland?
July or August is the prime time for Northern Ireland adventures due to its location further north. Thanks to its mild, temperate climate, Ireland does not experience extreme weather, with warm summers, mild winters, and comfortable temperatures throughout the year.
How many days are recommended for a trip to Northern Ireland?
While you could technically see the highlights of Northern Ireland in 1 day, it is not recommended if you truly want to experience the destination. A minimum of 2 to 4 days is much better for a comprehensive visit.
What are some must-see natural attractions in Northern Ireland?
Northern Ireland boasts breathtaking natural beauty. The iconic Giant's Causeway, a UNESCO World Heritage site, is a must-see with its unique basalt columns. The Causeway Coastal Route offers stunning ocean vistas and dramatic cliffs. Explore the enchanting Glens of Antrim for picturesque valleys and charming villages, and the rugged beauty of the Mourne Mountains, perfect for hiking and outdoor activities.