Weather in Ottawa in June 2025
Average weather
Average temperature in Ottawa in June
Going from a maximum of +34°C during the day to a minimum of +7°C during the night, the temperature in June averages around +25°C.
The average maximum temperature goes down 33% by the end of the month, compared with the beginning of the month, from +34°C to +25°C.
Is Ottawa warm or cold in June?
Ottawa is typically warm in June.
Maximum temperatures go up compared to the previous month from +20°C to +24°C. The minimum temperature also goes up from +8°C to +13°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
June is one of the warmest months in Ottawa, here is the comparison with other months:
Climate in Ottawa in June
| May | June | July | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +20°C | +24°C | +27°C | ||||
| Min. temperature | ||||||
| -5°C | 0°C | +6°C | ||||
| Max. temperature | ||||||
| +35°C | +36°C | +36°C | ||||
| Rainfall | ||||||
| 86 mm | 91 mm | 91 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 2 m/s | ||||
| Humidity | ||||||
| 62% | 68% | 69% | ||||
| Air pressure | ||||||
| 1013 HPa | 1012 HPa | 1012 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 3 | ||||
| Cloudy days | ||||||
| 12 | 11 | 11 | ||||
| Rainy days | ||||||
| 14 | 13 | 11 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
June weather is still as good as in May. It’s getting warmer as June arrives. The average maximum temperature goes up from +20°C to +24°C during the day. Prepare for more rain. Average rainfall goes from 86 mm to 91 mm. Humidity rises from 62% to 68%. The average wind speed doesn’t change much during June, staying around 3 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.
July brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Ottawa is gradually increasing during June, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last June in Ottawa?
Climate Change over Years
The climate in Ottawa in June has not changed much over the last 43 years.
The average temperature was the lowest in 1992 (+10°C) and the highest in 2012 (+13°C). The driest year was 1985 with only 469 mm of rainfall, and the wettest year was 2017 with 1378 mm.
FAQ
Is June a good time to visit Ottawa?
Can you sunbathe in Ottawa in June?
Is Ottawa rainy in June?
Is it sunny in Ottawa in June?
Other cities in Canada
Monthly weather in Ottawa
Source of the data
For this page, we’ve looked at the typical weather in Ottawa, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.