Best year time to visit Londonderry

General weather information about Londonderry

Average annual temperature is 10.2 °C

Absolute maximum temperature: 32.7 °C

Absolute minimum temperature: -26.2 °C

Number of sunny days: 160 days

Number of rainy days: 188 days

Number of snow days: 17 days

Look at detailed online map of Londonderry

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

Londonderry air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)11.214.615.930.430.832.731.628.532.427.817.915.7
Average daytime temperature (°C)4.64.76.915.020.823.127.525.122.718.28.47.2
Average temperature (°C)0.5-1.21.99.014.017.422.620.118.013.13.32.6
Average night temperature (°C)-3.2-6.0-2.44.48.213.118.616.014.49.2-0.4-0.4
Absolute minimum temperature (°C)-15.0-26.2-7.5-4.01.37.113.312.07.30.7-5.5-7.7

Londonderry monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.615.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)4.16.37.08.011.48.410.09.67.67.37.05.2
Precipitation (mm)1714612895841522171681989143155
Sunny days913151519651012172217
Rainy days16101215122426211814713
Snow days654000000011

Londonderry - weather forecast by months

Londonderry weather in januaryLondonderry weather in februaryLondonderry weather in marchLondonderry weather in aprilLondonderry weather in mayLondonderry weather in juneLondonderry weather in julyLondonderry weather in augustLondonderry weather in septemberLondonderry weather in octoberLondonderry weather in novemberLondonderry weather in december

Best time to visit Londonderry:

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

  • May — 11.4(h)
  • July — 10.0(h)

Months with the longest average daylight duration in Londonderry:

  • June — 15.3(h)

The largest precipitation sum in Londonderry is at

  • January — 171(mm)
  • July — 217(mm)
  • August — 168(mm)
  • September — 198(mm)

    • Weather forecast in the closest to Londonderry admin centers

    Weather forecast in the closest towns to Londonderry

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    Frequently asked questions

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