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Toronto Climate — Average Highs, Lows & Rainfall by Month

Toronto has a temperate climate with four distinct seasons. Daytime temperatures average 26°C / 79°F in July, the warmest month, and drop to 0°C / 31°F in January, the coldest. Overnight lows in January average -7°C / 19°F. Toronto receives about 901 mm of rain a year across roughly 126 wet days, with June the wettest month.

Averages for 2021–2025 · Open-Meteo Historical Weather API (ERA5 reanalysis) · Updated 2026-10-05

Hottest month
July
26°C / 79°F
Coldest month
January
-7°C / 20°F
Wettest month
June
97 mm
Annual rainfall
901 mm
~126 wet days

Monthly averages in Toronto

Average daytime high, overnight low and rainfall for each month of the year.

Average temperatures and rainfall by month in Toronto, 2021–2025
MonthAvg highAvg lowRainfallWet days
January0°C / 31°F-7°C / 20°F63 mm9
February1°C / 33°F-7°C / 19°F64 mm9
March6°C / 43°F-2°C / 28°F70 mm11
April11°C / 53°F3°C / 37°F92 mm13
May18°C / 65°F9°C / 48°F77 mm10
June24°C / 75°F15°C / 59°F97 mm11
July26°C / 79°F18°C / 64°F88 mm12
August25°C / 78°F17°C / 63°F72 mm10
September22°C / 72°F14°C / 58°F64 mm8
October16°C / 60°F9°C / 47°F77 mm11
November8°C / 47°F2°C / 35°F51 mm9
December3°C / 38°F-3°C / 27°F86 mm13

Best time to visit Toronto

September, August, July offer the most comfortable weather in Toronto: mild daytime temperatures with the year's lowest rainfall — September averages 22°C (72°F); August averages 25°C (78°F); July averages 26°C (79°F).

Toronto climate FAQ

What is the hottest month in Toronto?
July is the hottest month in Toronto, with average daytime highs of 26°C / 79°F and overnight lows of 18°C / 64°F (averages for 2021–2025).
What is the coldest month in Toronto?
January is the coldest month in Toronto, with average highs of 0°C / 31°F and lows of -7°C / 20°F.
How much rain does Toronto get a year?
Toronto receives about 901 mm of rainfall a year, spread over roughly 126 wet days. June is the wettest month (97 mm on average) and November the driest (51 mm).
When is the best time to visit Toronto?
September, August, July are the most comfortable months in Toronto: mild daytime temperatures with the least rainfall of the year.

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Source: Open-Meteo Historical Weather API (ERA5 reanalysis), Open-Meteo. Averages are daily means across 2021–2025 and are rounded for display — for a live forecast see the Toronto weather page.