March Weather in Thunder Bay

Last updated: March 2, 2024

The weather in Thunder Bay, Canada, during March is characterized by an average temperature of -5°C (23°F). Highs can soar to 9°C (48°F), while lows may dip to -22°C (-7°F). Typically, the humidity level in Thunder Bay throughout March hovers around 92%.

-22°C (-7°F)

Minimum temperature

-5°C (23°F)

Average temperature

9°C (48°F)

Maximum temperature

92%

Humidity

Precipitation and Sunshine hours

In March, Thunder Bay averages 31 mm (1.2 inches) of rainfall, typically over the course of 5 rainy days. The month enjoys an average of 11 hours 56 minutes of daylight, with the sun shining for approximately 8 hours 23 minutes each day. Additionally, there is a 44% probability of sunny days during this period.

31 mm (1.2 inches)

Precipitation

5 rainy days

Rainy days

8 hours 23 minutes

Sunshine hours

44%

Chance of sun

UV Index

In March, the UV Index in Thunder Bay reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 0 1 1 2 3 4 4 5 4 3 2 1 1
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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