Sudbury weather in August 2025

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

  • 23°C maximum daytime temperature in August in Sudbury23
    23°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in August in Sudbury11
    11 days with some rainfall
  • 12°C minimum night-time temperature in August in Sudbury12
    12°C min night temperature
  • 14 hours of daylight per day in August in Sudbury14
    14 hours of daylight per day
  • No heat & humidity in August in Sudbury0
    No heat & humidity
  • 82 mm monthly rainfall in August in Sudbury82
    82 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Sudbury7
    7 (High) UV index

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The August weather guide for Ontario (Sudbury) 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 Sudbury in August?

Daytime temperatures usually reach 23°C in Sudbury in August, falling to 12°C at night.

How sunny is it in Sudbury in August?

There are normally 8 hours of bright sunshine each day in Sudbury in August - that's 55% of daylight hours.

Does it rain in Sudbury in August?

There are usually 11 days with some rain in Sudbury in August and the average monthly rainfall is 82mm.

Sudbury August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:05 19:54
Saturday, 16th August 2025 05:24 19:31
Sunday, 31st August 2025 05:43 19:04

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