Turku Weather in September
14.4°C high · 6.8°C low · 67 mm rain · 4h sun
Sep is a cool month in Turku — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 14.4°C |
| Average low | 6.8°C |
| Rainfall | 67 mm |
| Sunshine | 4 hours/day |
| Daylight | 12.5 hours |
What to pack in September
Pack a jacket and layers for Turku in September.
Turku weather by month
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Frequently asked questions
What is the weather in Turku in September?
Highs of 14.4°C and lows of 6.8°C, with about 67 mm of rain and 4 hours of sunshine per day.
Is September a good time to visit Turku?
Sep is a cool month in Turku — not peak season, but a good time to avoid crowds.
What to do in Turku · Best time to visit Turku
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.