Weather in Cornwall Island in June

General weather information about Cornwall Island

Average annual temperature is 8.7 °C

Absolute maximum temperature: 33.2 °C

Absolute minimum temperature: -29.3 °C

Number of sunny days: 121 days

Number of rainy days: 201 days

Number of snow days: 43 days

Look at detailed online map of Cornwall Island

* Weather data for Cornwall Island Canada is based on climate observations for 2026 year

Cornwall Island air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.611.77.525.331.133.232.927.631.729.316.78.8
Average daytime temperature (°C)-0.30.53.113.319.424.027.223.822.516.46.32.7
Average temperature (°C)-3.1-5.1-0.97.012.818.222.319.417.912.52.3-0.4
Average night temperature (°C)-5.5-9.5-4.42.16.713.418.416.014.29.5-0.6-2.8
Absolute minimum temperature (°C)-12.6-29.3-9.5-7.90.87.913.511.410.2-0.6-5.9-9.7

Cornwall Island 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)9.210.411.913.514.915.615.214.012.511.09.68.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.65.25.97.911.19.711.29.79.55.55.12.3
Precipitation (mm)116767490751041301765212552128
Sunny days57101421935218810
Rainy days11131316102128269231516
Snow days1588000000075

Cornwall Island - weather forecast by months

Cornwall Island weather in januaryCornwall Island weather in februaryCornwall Island weather in marchCornwall Island weather in aprilCornwall Island weather in mayCornwall Island weather in juneCornwall Island weather in julyCornwall Island weather in augustCornwall Island weather in septemberCornwall Island weather in octoberCornwall Island weather in novemberCornwall Island weather in december

Best time to visit Cornwall Island:

The best time to visit Cornwall Island during the most sunny months:

  • May — 11.1(h)
  • June — 9.7(h)
  • July — 11.2(h)
  • August — 9.7(h)
  • September — 9.5(h)

Months with the longest average daylight duration in Cornwall Island:

  • June — 15.6(h)

The largest precipitation sum in Cornwall Island is at

  • July — 130(mm)
  • August — 176(mm)
  • December — 128(mm)

    • Weather forecast in the closest to Cornwall Island admin centers

    Weather forecast in the closest towns to Cornwall Island

    Explore Cornwall Island

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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