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Northern Ireland

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Northern Ireland Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Northern Ireland year round climate

  • Spring (March–May): Average 42–53°F, 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 53–56°F, 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 49–45°F, 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 43–39°F, 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. 48.4°F / Annual rainfall: approx. 35 mm / Summer humidity: 60%–70% / Rainiest month: August

Northern Ireland monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
39°F
2.5
February
42.6°F
2.8
March
42.4°F
4.1
April
45.5°F
3.7
May
53.6°F
2.6
June
53.2°F
2.1
July
56.1°F
2.8
August
56.3°F
5.3
September
53.1°F
1.4
October
49.6°F
3.3
November
45.3°F
2.1
December
43.3°F
2.8

Northern Ireland weather for the next seven days

12/25
Thursday
Partly Cloudy
39.6°F/33.3°F
12/26
Friday
Sunny
40.1°F/32.5°F
12/27
Saturday
Sunny
41.8°F/32.6°F
12/28
Sunday
Sunny
39.5°F/31°F
12/29
Monday
Partly Cloudy
42.3°F/30.7°F
12/30
Tuesday
Partly Cloudy
40.2°F/33.9°F
12/31
Wednesday
Patchy rain nearby
42.4°F/36.4°F