Seattle weather in June
June in Seattle: nice, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in Seattle · #112 of 604 destinations to visit in June · comfort 90/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Seattle climate normals — June
| Daytime high | 22°C / 71°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 53°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 67 mm / 2.6 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 10°C / 51°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 15.9 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Seattle in June — FAQ
- Is June a good time to visit Seattle?
- June in Seattle: nice, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for Seattle on SeasonMap's comfort score (90/100).
- What is the weather like in Seattle in June?
- In June, Seattle averages a daily high of 21.8°C and a low of 11.9°C, with about 66.7 mm of rain over roughly 11 rainy days.
- What is the air quality in Seattle in June?
- Seattle has a mean US Air Quality Index of about 39 in June.