Sudbury weather in August 2026

Expect daytime maximum temperatures of 23°C in Sudbury, Ontario in August based on long-term weather averages. There are 8 hours of sunshine per day on average with 11 days with some rainfall and typically 82 mm of rainfall in the month.

  • 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 Ontario

How hot is it in Sudbury in August?

Daytime temperatures usually reach 25°C in Sudbury in August with low heat and humidity, falling to 15°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 56% of daylight hours.

How warm is the sea around Sudbury in August?

The average sea temperature around Sudbury in August is 21°C.

Does it rain in Sudbury in August?

There are usually 10 days with some rain in Sudbury in August and the average monthly rainfall is 83mm.

Sudbury August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st August 2026 05:05 19:55
Sunday, 16th August 2026 05:24 19:32
Monday, 31st August 2026 05:43 19:05

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