Weather in Helsinki in September
Helsinki, Finland averages a high of 14.9°C (58.8°F) and low of 10°C (50°F) in September, with 10 rain days and 8.5 hours of daily sunshine. Travel score: 66.4/100 (Good). The best time to visit Helsinki is July.
High
15°C59°F
Low
10°C50°F
🌧️
10
rain days
☀️
8.5
hrs/day sunshine
💧
81%
humidity
66— Good
September in Helsinki is cool and occasionally wet — good for most activities.
What are the average temperatures in Helsinki?
How much does it rain in Helsinki in September?
Helsinki receives an average of 57.7mm of rainfall across 10 rainy days in September. The annual total is 673mm.
What should I pack for Helsinki in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Warm coat
Cool weather with highs around 15°C
🧶
Sweaters and warm layers
Layer up for comfort
🎉Visiting Finland in September?
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Data based on 1994–2024 averages · Last updated: 2024-12-31