Greater Sudbury weather
Best months for weather: Jun–Sep. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Greater Sudbury, Ontario, Canada.
Best Time to Visit
Peak season Jun–SepOff season Oct–Apr
Greater Sudbury weather by month
When is the best time to visit Greater Sudbury?
Based on weather alone, the best time to visit Greater Sudbury is Jun–Sep, according to NASA's 2001–2025 climate averages. Oct–Apr tends to be the least pleasant. Average highs run from -8°C (18°F) in January to 25°C (77°F) in July.
What is the rainiest month in Greater Sudbury?
October is the wettest month, with about 88 mm (3.5 in) of rain on average. February is the driest, with about 44 mm (1.7 in).
What is the hottest month in Greater Sudbury?
July is the warmest, with average highs of 25°C (77°F) and lows of 13°C (56°F). January is the coolest, with highs of -8°C (18°F) and lows of -18°C (0°F).
Does Greater Sudbury have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is October at about 88 mm (3.5 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months