Weatheo

Oakville Weather by Month

Average temperatures, rainfall and humidity for Oakville, Canada, month by month, built from OpenWeather’s historical records. Use it to see what a typical Oakville month looks like before you travel — then check the live Oakville forecast for the days ahead.

Warmest month

July

28°C average high

Coolest month

February

-7°C average low

Wettest month

April

68 mm of rain

Driest month

February

20 mm of rain

Average temperature and rainfall in Oakville by month

Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.

MonthAvg highAvg lowRecord low / highRainfallHumidityWind
January0°C-7°C-24°C / 14°C
40 mm
78%17 km/h
February0°C-7°C-26°C / 17°C
20 mm
76%17 km/h
March5°C-2°C-19°C / 22°C
41 mm
71%16 km/h
April12°C3°C-9°C / 30°C
68 mm
68%15 km/h
May19°C9°C-2°C / 32°C
62 mm
67%13 km/h
June25°C15°C6°C / 36°C
62 mm
68%13 km/h
July28°C18°C11°C / 47°C
62 mm
70%12 km/h
August26°C17°C9°C / 36°C
64 mm
72%12 km/h
September23°C14°C4°C / 34°C
49 mm
75%12 km/h
October16°C8°C-4°C / 30°C
62 mm
78%14 km/h
November8°C2°C-14°C / 24°C
41 mm
75%16 km/h
December3°C-2°C-22°C / 17°C
38 mm
79%16 km/h

Best time to visit Oakville

The most comfortable time to visit Oakville is generally June and August to September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around April, totalling about 611 mm a year.

Travellers who prefer heat should aim for July, when highs average 28°C. April is the month to avoid if rain would spoil your plans — it averages 68 mm, roughly 3× the rainfall of the driest month (February).

Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Oakville forecast for what is happening now.

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