Last updated: June 18, 2025
In November, the average temperature in Thunder Bay, Canada is a chilly -3°C (27°F). Expect minimums plummeting to -20°C (-4°F) and occasional highs reaching 16°C (62°F). With an average precipitation of 51 mm (2.0 in) over 7 days, you're likely to encounter a moist atmosphere, compounded by an average humidity of 87%. Prepare accordingly!
In November in Thunder Bay, the average temperature is -3°C (27°F). The maximum can reach 16°C (62°F) and the minimum can be as low as -20°C (-4°F). Be prepared for a wide range of temperatures if you're planning to travel during this time!
In Thunder Bay in November, the precipitation amount is 51 mm (2.0 in) over a period of 7 days.
In Thunder Bay in November humidity is 87%. With an average temperature of -3°C (27°F), this humidity feels like an icy blanket that wraps around you, making outdoor activities challenging as the cold air mingles with the dampness, leaving travelers feeling chilled to the bone even in short bursts outside.
In Thunder Bay in November, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Thunder Bay, you can visit Hourly UV Index in Thunder Bay.
UV Risk Categories
Weather in Thunder Bay varies notably across the year, with each month offering distinct climate conditions. This page compares November’s weather to other months in Thunder Bay, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -13°C (9°F) | 30 mm (1.2 inches) | 95% | low |
| February Weather | -13°C (9°F) | 35 mm (1.4 inches) | 94% | moderate |
| March Weather | -5°C (23°F) | 31 mm (1.2 inches) | 92% | moderate |
| April Weather | 1°C (33°F) | 58 mm (2.3 inches) | 90% | high |
| May Weather | 8°C (47°F) | 52 mm (2.0 inches) | 78% | very high |
| June Weather | 14°C (58°F) | 58 mm (2.3 inches) | 71% | very high |
| July Weather | 19°C (66°F) | 82 mm (3.2 inches) | 70% | very high |
| August Weather | 17°C (63°F) | 77 mm (3.0 inches) | 72% | very high |
| September Weather | 13°C (55°F) | 98 mm (3.9 inches) | 76% | high |
| October Weather | 6°C (43°F) | 87 mm (3.4 inches) | 82% | moderate |
| November Weather | -3°C (27°F) | 51 mm (2.0 inches) | 87% | low |
| December Weather | -9°C (16°F) | 55 mm (2.2 inches) | 94% | low |