Ottawa Weather in June

The climate in Ottawa during June can be summarized as hot, humid and wet.

June is in the summer in Ottawa and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (85°F), whilst at night 18°C (63°F) is normal.

On average June is the wettest month of the year in Ottawa with around 142mm 5.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.5 hours of sunshine per day.

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 Ottawa in June 2024.