Best year time to visit Scilly

General weather information about Scilly

Average annual temperature is 11.4 °C

Absolute maximum temperature: 21.9 °C

Absolute minimum temperature: -2.4 °C

Number of sunny days: 70 days

Number of rainy days: 294 days

Number of snow days: 1 day

Look at detailed online map of Scilly

* Weather data for Scilly Ireland is based on climate observations for 2026 year

Scilly air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.513.213.416.419.220.920.620.121.917.713.612.8
Average daytime temperature (°C)9.210.110.011.715.618.517.918.117.614.211.110.3
Average temperature (°C)7.08.47.99.312.716.015.215.515.212.29.08.6
Average night temperature (°C)4.76.55.56.89.513.412.613.212.610.07.06.7
Absolute minimum temperature (°C)-2.41.00.22.35.79.610.010.27.04.10.7-0.7

Scilly monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.410.011.913.915.616.616.114.612.710.78.97.9
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)4.04.75.08.211.311.110.59.07.64.75.53.1
Precipitation (mm)136332328947100152162196237103150
Sunny days81032972283106
Rainy days221828282223292922282025
Snow days100000000000

Scilly - weather forecast by months

Scilly weather in januaryScilly weather in februaryScilly weather in marchScilly weather in aprilScilly weather in mayScilly weather in juneScilly weather in julyScilly weather in augustScilly weather in septemberScilly weather in octoberScilly weather in novemberScilly weather in december

Best time to visit Scilly:

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

  • May — 11.3(h)
  • June — 11.1(h)
  • July — 10.5(h)
  • August — 9.0(h)

Months with the longest average daylight duration in Scilly:

  • May — 15.6(h)
  • June — 16.6(h)
  • July — 16.1(h)

The largest precipitation sum in Scilly is at

  • March — 232(mm)
  • September — 196(mm)
  • October — 237(mm)

    • Weather forecast in the closest to Scilly admin centers

    Weather forecast in the closest towns to Scilly

    Explore Scilly

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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