Helsinki, FinlandQuick decision
When to visit Helsinki?
🌞 Best time overall
June
🌡️ Optimal temperature
54°F–66°F in June
🌧 Least rain
35% rainy days in June
🌧 Wettest month
January (47%)
📅 Best score
7.6/10
By trip type
Best time by type of trip
SaunasYear-round — Löyly, Allas Sea Pool and traditional public saunas.
Design & ArchitectureYear-round — Design District, Oodi Library and Suomenlinna.
ArchipelagoJune–August — islands by ferry, swimming and kayaking.
Christmas & SnowDecember — markets, illuminated white cathedral and Lapland excursion.
Monthly climate data
Helsinki weather month by month
| Month | Min °F | Max °F | Rainy days (%) | Precip. in/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | 25°F | 32°F | 47% | 0.1in | 0.1h | 1.0/10 |
| 🌨️ February | 25°F | 34°F | 40% | 0.1in | 3.0h | 2.1/10 |
| 🌨️ March | 27°F | 36°F | 33% | 0.1in | 7.7h | 4.1/10 |
| 🌫️ April | 32°F | 45°F | 34% | 0.1in | 11.6h | 5.1/10 |
| ⛅ May | 43°F | 55°F | 29% | 0.1in | 15.0h | 7.1/10 |
| 🌤️ June | 54°F | 66°F | 35% | 0.1in | 16.6h | 7.6/10 |
| 🌤️ July | 57°F | 68°F | 41% | 0.1in | 15.1h | 7.6/10 |
| 🌤️ August | 57°F | 68°F | 44% | 0.1in | 12.5h | 7.3/10 |
| ⛅ September | 52°F | 61°F | 37% | 0.1in | 8.9h | 7.0/10 |
| 🌦️ October | 41°F | 50°F | 46% | 0.1in | 4.4h | 3.8/10 |
| 🌦️ November | 34°F | 41°F | 47% | 0.1in | 0.4h | 1.0/10 |
| 🌨️ December | 28°F | 36°F | 46% | 0.1in | 0.0h | 1.0/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Challenging climate
Average 7°F, 32% rainy days, 11.4h sunshine/day. Score: 5.4/10.
☀️ Summer (Jun–Aug) — Good time
Average 20°F, 40% rainy days, 14.7h sunshine/day. Score: 7.5/10.
🍂 Autumn (Sep–Nov) — Challenging climate
Average 10°F, 43% rainy days, 4.6h sunshine/day. Score: 3.9/10.
❄️ Winter (Dec–Feb) — Challenging climate
Average 1°F, 44% rainy days, 1.0h sunshine/day. Score: 1.4/10.
Accommodation
Find a place to stay in Helsinki
Check availability during the recommended period
Tip : off-peak months (January, February) are cheapest but weather is significantly worse.
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Activities and tours in Helsinki
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
June is ideal with 35% rainy days and 19°F. The months of June & July offer comparable conditions.
January is the wettest month with 47% rainy days.
Yes, June is the best month with an average of 19°F.
In winter, the average score is 1.4/10. Difficult period — prefer the peak season.
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