Ottawa weather in June 2026

Expect daytime maximum temperatures of 23°C in Ottawa, Ontario in June based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 83 mm of rainfall in the month.

  • 23°C maximum daytime temperature in June in Ottawa23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in June in Ottawa12
    12 days with some rainfall
  • 12°C minimum night-time temperature in June in Ottawa12
    12°C min night temperature
  • 16 hours of daylight per day in June in Ottawa16
    16 hours of daylight per day
  • No heat & humidity in June in Ottawa0
    No heat & humidity
  • 83 mm monthly rainfall in June in Ottawa83
    83 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Ottawa8
    8 (Very High) UV index

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The June weather guide for Ontario (Ottawa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Ontario

How hot is it in Ottawa in June?

Daytime temperatures usually reach 24°C in Ottawa in June, falling to 13°C at night.

How sunny is it in Ottawa in June?

There are normally 9 hours of bright sunshine each day in Ottawa in June - that's 55% of daylight hours.

How warm is the sea around Ottawa in June?

The average sea temperature around Ottawa in June is 13°C.

Does it rain in Ottawa in June?

There are usually 10 days with some rain in Ottawa in June and the average monthly rainfall is 69mm.

Ottawa June sunrise & sunset times

Browse the sunrise and sunset times for Ottawa in June 2026. Select a month to view Ottawa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st June 2026 04:18 19:44
Monday, 15th June 2026 04:14 19:53
Tuesday, 30th June 2026 04:18 19:55

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