Greater Sudbury Weather & Climate

Canada

Greater Sudbury sees feels-like daytime highs peak around 28.3°C in July and nighttime lows bottom out near -16.9°C in January. September is the wettest month (~71 mm), while January is the driest (~8 mm). For sunshine, August leads with about 63% clear skies.

Best time to visit Greater Sudbury

Based on mild feels-like temperatures and low rain chances, the most comfortable months are August, June, and July — expect around 16.525.6°C with roughly 28% chance of rain on a given day in August.

Greater Sudbury climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January-16.9° / -9.7°2%8 mm28%10.7 kph
February-15.6° / -7.6°3%8 mm29%11.4 kph
March-9° / -1.3°9%21 mm35%11.5 kph
April-0.2° / 7.8°18%39 mm42%10.6 kph
May8.1° / 17.3°27%57 mm46%9.1 kph
June14.4° / 24.5°30%62 mm53%8.2 kph
July18.1° / 28.3°29%60 mm61%7.9 kph
August16.5° / 25.6°28%62 mm63%8.1 kph
September10.6° / 19.1°30%71 mm57%8.7 kph
October3.3° / 10.5°28%66 mm46%9.2 kph
November-4.8° / 1.1°15%38 mm37%9.5 kph
December-12.4° / -6.5°6%17 mm30%9.9 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

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