Sudbury weather

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The weather guide for Sudbury, Ontario shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Sudbury?

The hottest time of year in Sudbury is normally July. Expect maximum daytime temperatures to reach 25°C with no heat and humidity.

Which month has the most rain in Sudbury?

In terms of rainfall, September is usually the wettest month in Sudbury with 97mm on average. There are normally 12 days in September with some rain.

When is it sunniest in Sudbury?

The sunniest time of year in Sudbury is normally July with bright sunshine on average for 61% of daylight hours; that's 9 hours of sunshine per day.

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

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Compare Sudbury weather with the USA

Below the Sudbury weather chart shows average maximum daytime temperature for Sudbury, Ontario, Canada and the USA (Washington).

Maximum daytime temperature (°C)

Sudbury, Ontario, Canada
USA (Washington)
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Sep
Oct
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Dec

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

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Where's hot in Ontario right now?

Below are the temperatures expected today at popular destinations in Ontario. Select a destination to compare today's forecast with average weather conditions.

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