Helsinki Weather in June
Finland · Subarctic climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
June in Helsinki sees average temperatures ranging from a low of 12.5°C (54.5°F) to a high of 20.1°C (68.2°F), with a mean of 16.7°C (62.1°F). Compared to the annual average of 6.8°C (44.2°F), this month is 9.9°C warmer than the yearly norm. Precipitation averages 49.8mm, making it approximately 19.0mm drier than the monthly average of 69.0mm. The city receives an average of 15.6 hours of sunshine per day during June, with relative humidity averaging 69.6%. Wind speeds reach an average maximum of 20.4 km/h. For travelers, this month offers a temperature experience in Helsinki, with drier-than-average conditions compared to the rest of the year.
If you're planning outdoor activities in Helsinki, daylight is the variable that matters most. I did a sea kayak tour in June at 10pm — full sun, 18°C, surreal. December gives you 6 hours of gray light, which limits everything. The Nordic summer (June-August) is the outdoor window: 18-22°C, 19 hours of daylight, perfect for island-hopping by ferry. Winter is its own adventure: -5°C, snow cover from January-March, and the sauna-ice-swim cycle is a Helsinki essential. Pack windproof layers year-round — the Baltic breeze cuts hard. September brings fall colors and fewer tourists; my favorite hiking month.
June vs Adjacent Months
| Metric | May | June | July |
|---|---|---|---|
| Mean Temp | 9.7°C (49.5°F) | 16.7°C (62.1°F) | 17.9°C (64.2°F) |
| Rainfall | 51.0mm | 49.8mm | 79.9mm |
| Sunshine | 12.9 hrs | 15.6 hrs | 13.8 hrs |
| Humidity | 68.8% | 69.6% | 75.2% |
| Wind | 21.3 km/h | 20.4 km/h | 21.4 km/h |
| Rainy Days | 13.6 | 12.0 | 20.4 |
| Snowfall | 0.7 cm | 0.0 cm | 0.0 cm |
Seasonal Context
June falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Helsinki in June, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Helsinki in June?
The average temperature in Helsinki during June ranges from 12.5°C (54.5°F) to 20.1°C (68.2°F), with a mean of 16.7°C (62.1°F).
How much does it rain in Helsinki in June?
Helsinki receives an average of 49.8mm of precipitation in June, spread across approximately 12.0 rainy days.
What should I pack for Helsinki in June?
Based on June weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is June a good time to visit Helsinki?
June is a good time to visit Helsinki, with comfortable temperatures and manageable rainfall.
Other Months for Helsinki
Cities with Similar June Climate (Subarctic)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 60.17°, 24.94°. Timezone: Europe/Helsinki. Last updated: 2026-07-30.