Open Travel Guide
Weather in Ontario

Ontario Weather & Climate Guide 2026

Ontario's climate in numbers — the months that flatter it, the ones to avoid, and what to pack.

Ontario is Canada's most populous province, home to the nation's capital Ottawa and its largest city Toronto. The province stretches from the Great Lakes in the south to Hudson Bay in the north, offering world-class urban experiences, stunning natural landscapes, and rich Indigenous and colonial heritage.

Best time to visit

Recommendation

Best: Year-round

Avoid: None