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Thunder Bay
Weather averages
ClimateForecastNovemberDecember >>

Thunder Bay Climate by Month

The graphs below provide an overview of the climate in Thunder Bay (Ontario), Canada. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Forecast for Thunder Bay

Tue   Nov 05
10°C | 4°C
E 11 km/h
1.1 mm
broken clouds and chance of slight rain

broken clouds and chance of slight rain

hourly forecast
Wed   Nov 06
9°C | -1°C
S 11 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
Thu   Nov 07
9°C | 0°C
SW 22 km/h
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Thunder Bay in Canada

During the months of July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is winter in Thunder Bay?
    The coldest season / winter is in the following months: January, February, March and December.
  • Which is the warmest month in Thunder Bay?
    August has an average maximum temperature of 23°C and is the warmest month of the year.
  • Which is the coldest month in Thunder Bay?
    The coldest month is January with an average maximum temperature of -8°C.
  • Which is the wettest month in Thunder Bay?
    September tops the wettest month list with 93 mm of rainfall.
  • Which is the driest month in Thunder Bay?
    February is the driest month with 30 mm of precipitation.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     


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