Ottawa Weather in June
What's the weather like in Ottawa (Ontario) in June 2025?
The climate in Ottawa during June can be summarized as mild and a little damp.
June is in the summer in Ottawa and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (74°F), whilst at night 12°C (54°F) is normal.
| Daytime temperature | 23.6°C 74.4°F |
|---|---|
| Nightly temperature | 12.3°C 54.1°F |
| Average temperature | 17.9°C 64.2°F |
| Daily sunshine | 9 hrs |
| Avg rainfall | 83 mm 3.3 ins |
| Rainy days | 12 days |
| Sea temperature | 11°C 51.7°F |
| Humidity | 68% |
| Windspeed | 11.9kph 7 mph |
On average June is the 4th wettest month of the year in Ottawa with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 hours of sunshine per day.
June temperatures in Ottawa
June rainfall
June hourly sunshine
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 2025.
Other monthly averages
Ottawa weather stats
| Hottest month: | July | 25.9°C 78.6°F |
|---|---|---|
| Driest month: | February | 58mm 2.3ins |
| Sunniest month: | July | 9.7hrs |
| Coldest month: | January | -6.6°C 20.1°F |
| Wettest month: | July | 88mm 3.5ins |
© Google
Locations nearby
Top Canada locations
- Calgary
- Edmonton
- Halifax
- Montréal
- Niagara Falls
- Ottawa
- Québec
- St. John's
- Toronto
- Vancouver
- Whistler
- Winnipeg