Ottawa weather in June 2025

Expect 23°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Ottawa in June. Check more long-term weather averages for Ottawa in June before you book your next holiday to Ontario in 2025/2026.

  • 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 Canada

How hot is it in Ottawa in June?

Daytime temperatures usually reach 23°C in Ottawa in June, falling to 12°C at night.

How sunny is it in Ottawa in June?

There are normally 8 hours of bright sunshine each day in Ottawa in June - that's 54% of daylight hours.

Does it rain in Ottawa in June?

There are usually 12 days with some rain in Ottawa in June and the average monthly rainfall is 83mm.

Ottawa June sunrise & sunset times

Browse the sunrise and sunset times for Ottawa in June 2025. Select a month to view Ottawa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:18 19:44
Sunday, 15th June 2025 04:14 19:53
Monday, 30th June 2025 04:18 19:55

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