Last updated: June 18, 2025
In April, the average temperature in Greater Sudbury, Canada hovers around 3°C (38°F). Be prepared for a wide range, as temperatures can plummet to a chilling -24°C (-12°F) or soar to a warm 26°C (78°F). Expect about 83 mm (3.3 in) of precipitation over the course of 12 days, contributing to the notably high average humidity of 87%.
In April in Greater Sudbury, the average temperature is 3°C (38°F). Maximum temperatures can reach 26°C (78°F), while minimums can drop as low as -24°C (-12°F). Travelers should be prepared for a wide range of temperatures and adapt their clothing accordingly.
In Greater Sudbury in April, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.
In Greater Sudbury in April humidity is 87%. With an average temperature of 3°C (38°F), this humidity feels like a chilly blanket wrapped around you, making travel quite uncomfortable as the cold dampness seeps into your clothes and lingers in the air, often leaving you shivering and longing for warmer, drier conditions.
In Greater Sudbury in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Greater Sudbury.
UV Risk Categories
Weather in Greater Sudbury varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Greater Sudbury, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -11°C (13°F) | 45 mm (1.8 inches) | 96% | low |
| February Weather | -10°C (14°F) | 60 mm (2.4 inches) | 95% | moderate |
| March Weather | -5°C (24°F) | 51 mm (2.0 inches) | 89% | moderate |
| April Weather | 3°C (38°F) | 83 mm (3.3 inches) | 87% | high |
| May Weather | 11°C (53°F) | 82 mm (3.2 inches) | 73% | very high |
| June Weather | 17°C (62°F) | 96 mm (3.8 inches) | 69% | very high |
| July Weather | 20°C (68°F) | 94 mm (3.7 inches) | 66% | very high |
| August Weather | 18°C (65°F) | 96 mm (3.8 inches) | 71% | very high |
| September Weather | 14°C (57°F) | 90 mm (3.6 inches) | 76% | high |
| October Weather | 7°C (45°F) | 124 mm (4.9 inches) | 85% | moderate |
| November Weather | -2°C (29°F) | 81 mm (3.2 inches) | 89% | moderate |
| December Weather | -8°C (18°F) | 65 mm (2.5 inches) | 93% | low |