Thunder Bay

How to get there

When to go

Best months: June, July, August

Month Avg high Avg low Rainfall
January -7° -16° 30 mm
February -6° -17° 34 mm
March -9° 39 mm
April -3° 72 mm
May 16° 70 mm
June 21° 10° 72 mm
July 25° 14° 67 mm
August 23° 14° 62 mm
September 19° 11° 84 mm
October 11° 67 mm
November -4° 59 mm
December -3° -11° 53 mm

Averages for 2015-2024 from the ERA5 reanalysis. Highlighted months have an average high between 18 and 30 degrees and under 80 mm of rain.