Ottawa weather in June
June in Ottawa: warm, rainy — one of the best months to visit.
#1 of 12 months in Ottawa · #90 of 897 destinations to visit in June · comfort 93/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Ottawa in June
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Ottawa climate normals — June
| Daytime high | 24°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Rainfall | 93 mm / 3.7 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 15.6 h | |
| Wind | 15 km/h / 9 mph | |
| Air quality (US AQI) | 56 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Ottawa in June — FAQ
- Is June a good time to visit Ottawa?
- June in Ottawa: warm, rainy — one of the best months to visit. It ranks #1 of 12 months for Ottawa on SeasonMap's comfort score (93/100).
- What is the weather like in Ottawa in June?
- In June, Ottawa averages a daily high of 24.2°C and a low of 14.1°C, with about 92.8 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Ottawa in June?
- Ottawa has a mean US Air Quality Index of about 56 in June.