Ontario Weather in October

What's the weather like in Ontario (California) in October 2024?

The climate in Ontario during October can be summarized as warm and very dry.

October is in the fall / autumn in Ontario and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (81°F), whilst at night 11°C (52°F) is normal.

Ontario weather averages (imperial / metric)
Daytime temperature 27.2°C 80.9°F
Nightly temperature 11.1°C 51.9°F
Average temperature 19.1°C 66.4°F
Daily sunshine 9.1 hrs
Avg rainfall 9 mm 0.4 ins
Rainy days 2 days
Sea temperature 18.6°C 65.6°F
Humidity 61%
Windspeed 11.5kph 7 mph

On average October is the 4th driest month of the year in Ontario with around 9mm 0.4 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 9.1 hours of sunshine per day.

October temperatures in Ontario

Ontario average temperature in October

October rainfall

Ontario average rain in October

October hourly sunshine

Ontario average rain in October

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Ontario in October 2024.

Other monthly averages

Best places to visit in October

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Ontario weather stats

Ontario weather statistics
Hottest month: August 33.2°C 91.8°F
Driest month: July 1mm 0ins
Sunniest month: August 11.7hrs
Coldest month: January 18.2°C 64.8°F
Wettest month: January 84mm 3.3ins
Map showing location of Ontario (34.06334, -117.65089) Ontario map pin © Google

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