Best year time to visit Belfast

General weather information about Belfast

Average annual temperature is 17.3 °C

Absolute maximum temperature: 37.3 °C

Absolute minimum temperature: -5.0 °C

Number of sunny days: 193 days

Number of rainy days: 172 days

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* Weather data for Belfast United States is based on climate observations for 2026 year

Belfast air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)22.926.928.529.730.432.535.037.334.428.025.023.0
Average daytime temperature (°C)15.017.318.523.524.729.232.332.628.023.016.914.8
Average temperature (°C)9.611.812.617.219.323.327.027.122.517.211.29.0
Average night temperature (°C)5.47.67.611.814.318.122.622.518.012.66.84.4
Absolute minimum temperature (°C)-1.5-5.0-2.31.77.612.519.918.412.25.2-4.2-2.2

Belfast monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.110.912.013.114.014.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)6.66.88.29.09.711.511.110.99.78.87.26.7
Precipitation (mm)105746515668901111521212755147
Sunny days16121714161181618232319
Rainy days1516141615192315128712
Snow days000000000000

Belfast - weather forecast by months

Belfast weather in januaryBelfast weather in februaryBelfast weather in marchBelfast weather in aprilBelfast weather in mayBelfast weather in juneBelfast weather in julyBelfast weather in augustBelfast weather in septemberBelfast weather in octoberBelfast weather in novemberBelfast weather in december

Best time to visit Belfast:

The best time to visit Belfast during the most sunny months:

  • June — 11.5(h)

The largest precipitation sum in Belfast is at

  • April — 156(mm)
  • August — 152(mm)
  • December — 147(mm)

    • Weather forecast in the closest to Belfast admin centers

    Weather forecast in the closest towns to Belfast

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    MapTrains schedule
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    Frequently asked questions

    When is the best time to visit Belfast?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Belfast.
    What is the weather like in Belfast?
    See average temperature, rainfall and daylight hours for Belfast by month in the table above.
    How many sunny days does Belfast have?
    The monthly weather statistics above show sunshine and rainfall patterns for Belfast throughout the year.