September
OK
22.4°C / 14.6°C
16 rain days
warm, very wet
- comfortable temperatures (avg high 22.4°C / 72°F)
- warm evenings without humidity overload
Best time to visit Niagara Falls
Niagara Falls, Canada — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. Every month has trade-offs — pick what you can tolerate.
Best · September & May
About Niagara Falls
Niagara Falls is a city in Ontario, Canada, adjacent to, and named after, Niagara Falls. As of the 2021 census, the city had a population of 94,415. The city is located on the Niagara Peninsula along the western bank of the Niagara River, which forms part of the Canada–United States border, with the other side being the twin city of Niagara Falls, New York.
— condensed from Wikipedia ("Niagara Falls, Ontario")
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OK — shoulder months
May
OK
19.5°C / 9.3°C
17 rain days
mild, very wet
- comfortable temperatures (avg high 19.5°C / 67°F)
June
OK
24.2°C / 15.1°C
17 rain days
warm, very wet
- comfortable temperatures (avg high 24.2°C / 76°F)
- warm evenings without humidity overload
March
OK
5.6°C / -3°C
18 rain days
chilly, freezing nights, very wet
Months to skip
August
Skip
25.7°C / 17.8°C
19 rain days
warm, very wet
- extremely wet (19 rain days)
July
Skip
26.5°C / 18.2°C
21 rain days
warm, very wet
- extremely wet (21 rain days)
October
Skip
15.4°C / 8.6°C
20 rain days
cool, very wet
- extremely wet (20 rain days)
April
Skip
12.5°C / 2.5°C
19 rain days
cool, very wet
- extremely wet (19 rain days)
November
Skip
8.2°C / 1.6°C
19 rain days
chilly, very wet
- extremely wet (19 rain days)
December
Skip
3.7°C / -1.9°C
19 rain days
cold, freezing nights, very wet
- freezing at night (-1.9°C)
- extremely wet (19 rain days)
February
Skip
0.9°C / -7.1°C
19 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -7.1°C)
- extremely wet (19 rain days)
January
Skip
0.1°C / -6.9°C
21 rain days
cold, freezing nights, very wet
- bitterly cold (overnight -6.9°C)
- extremely wet (21 rain days)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.