Best year time to visit Belfast (historical)

General weather information about Belfast (historical)

Average annual temperature is 12.8 °C

Absolute maximum temperature: 36.4 °C

Absolute minimum temperature: -17.2 °C

Number of sunny days: 202 days

Number of rainy days: 148 days

Number of snow days: 15 days

Look at detailed online map of Belfast (historical)

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

Belfast (historical) air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.314.122.727.632.834.435.536.433.830.920.115.5
Average daytime temperature (°C)4.07.29.418.726.330.229.428.627.119.111.87.8
Average temperature (°C)-0.51.13.911.519.424.024.023.721.114.26.33.7
Average night temperature (°C)-3.4-3.6-0.15.713.018.119.119.416.110.11.90.9
Absolute minimum temperature (°C)-13.9-17.2-11.8-1.94.29.714.412.411.9-2.6-10.2-6.6

Belfast (historical) monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.77.46.89.812.112.612.310.910.27.57.54.7
Precipitation (mm)609110344403310111456691685
Sunny days151713172119141517162414
Rainy days981613101117161315515
Snow days732000000012

Best time to visit Belfast (historical):

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

  • May — 12.1(h)
  • June — 12.6(h)
  • July — 12.3(h)

The largest precipitation sum in Belfast (historical) is at

  • February — 91(mm)
  • March — 103(mm)
  • July — 101(mm)
  • August — 114(mm)
  • Frequently asked questions

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