Portland weather in June
June in Portland: warm, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Portland · #9 of 604 destinations to visit in June · comfort 95/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Portland climate normals — June
| Daytime high | 25°C / 76°F | 🌤 warm |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Feels like (high) | 24°C / 75°F | |
| Rainfall | 52 mm / 2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 68% | 💧 humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 12 h/day | |
| Daylight | 15.6 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 32 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Portland in June — FAQ
- Is June a good time to visit Portland?
- June in Portland: warm, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Portland on SeasonMap's comfort score (95/100).
- What is the weather like in Portland in June?
- In June, Portland averages a daily high of 24.6°C and a low of 12.2°C, with about 52 mm of rain over roughly 8.8 rainy days.
- What is the air quality in Portland in June?
- Portland has a mean US Air Quality Index of about 32 in June.