Helsinki weather in June
June in Helsinki: nice, a little rain, with clean air — one of the best months to visit.
#1 of 12 months in Helsinki · #20 of 604 destinations to visit in June · comfort 94/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Helsinki climate normals — June
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 56°F | |
| Feels like (high) | 20°C / 68°F | |
| Rainfall | 47 mm / 1.8 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 66% | 💧 humid |
| Dew point | 10°C / 49°F | |
| Sunshine | 14.8 h/day | |
| Daylight | 18.8 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Helsinki in June — FAQ
- Is June a good time to visit Helsinki?
- June in Helsinki: nice, a little rain, with clean air — one of the best months to visit. It ranks #1 of 12 months for Helsinki on SeasonMap's comfort score (94/100).
- What is the weather like in Helsinki in June?
- In June, Helsinki averages a daily high of 20.5°C and a low of 13.2°C, with about 46.9 mm of rain over roughly 8 rainy days.
- What is the air quality in Helsinki in June?
- Helsinki has a mean US Air Quality Index of about 48 in June.