Thunder Bay has a continental climate with warm to hot summers and cooler winters with a Great Lake moderating influence.

Summer daytime temperatures vary from 15°C to 30°C (59°F to 86°F) while nights tend to be cooler and less humid than southern locations. The summer period is well suited to both active and passive outdoor recreational pursuits.

Recent winter daytime temperatures have ranged from spring-like to relatively cold with sunny days. This type of climate is well suited to all kinds of active outdoor recreational pursuits.

Check out the top things to do in Thunder Bay by the season.

Check the current forecast at Environment Canada.


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