Greater Sudbury

What is the climate like in Greater Sudbury?

The best time to visit Greater Sudbury is typically July – August, with trip comfort peaking in July (6.7/10). Greater Sudbury is warmest in July, when daily highs average 79°F (26°C), and coolest in January, when lows fall to about 5°F (-15°C). The wettest month is typically October and the driest is January; the year sees roughly 37 in (943 mm) of precipitation.

• Best time to visitJuly – August — comfort peaks in July (6.7/10)
• Warmest monthJuly — average high 79°F (26°C)
• Coolest monthJanuary — average low 5°F (-15°C)
• Wettest monthOctober (4.4 in (112 mm))
• Driest monthJanuary (2.2 in (56 mm))
• Annual precipitation37 in (943 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromSudbury Climate, 22 km away (1977-2026)