Turku weather in September
Turku in September averages 12°C (53°F), 61 mm of rain and 4.8 hours of sun a day.
Of the twelve months in Turku, September is the fourth warmest, the sixth driest and the sixth dullest.
- Average temp
- 12°C (53°F)
8–16°C · 46–60°F
- Rainfall
- 61 mm
Showers likely
- Sunshine
- 4.8 h
hours per day
What is Turku like in September?
Daytime
Days are cool.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Turku in September?
A light rain jacket
About 61 mm falls this month — showers rather than washouts.
A warm mid-layer
Nights drop to around 8°C (46°F).
September compared with August and October
September in Turku is 4.8°C cooler than August and 12 mm drier than it, which averages 16°C (62°F).
September in Turku is 5.9°C warmer than October and 19 mm drier than it, which averages 6°C (42°F).
Daylight in Turku in September
On 15 September the sun is up for 12 hours 52 minutes in Turku, rising about 06:59 and setting about 19:51 local time.
September ends 2 hours 39 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 6 hours 8 minutes short of June, the longest-lit month here.
Where to stay in Turku
Dates are a starting point for September.
Travel guides for Turku
What to read before you book.
Turku weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -3°C / 26°F | 61 mm |
| February | -4°C / 24°F | 42 mm |
| March | -1°C / 30°F | 43 mm |
| April | 5°C / 40°F | 31 mm |
| May | 10°C / 50°F | 36 mm |
| June | 15°C / 58°F | 60 mm |
| July | 18°C / 64°F | 78 mm |
| August | 16°C / 62°F | 73 mm |
| September | 12°C / 53°F | 61 mm |
| October | 6°C / 42°F | 79 mm |
| November | 1°C / 34°F | 73 mm |
| December | -2°C / 29°F | 66 mm |
Similar weather in September
Other destinations whose September averages sit close to this one.
Check another month
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FAQs about Turku in September
September climate averages for Turku, 1991–2020.
Turku averages 12°C (53°F) in September, ranging from about 8°C (46°F) at night to 16°C (60°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 61 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 12°C (53°F) against 6°C (42°F) in October — 5.9°C warmer.
September is 4.8°C cooler than August, and 12 mm drier.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 4.8 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 52 minutes of daylight in mid-September, against 19 hours in June and 5 hours 47 minutes in December.
On 15 September, sunrise is about 06:59 and sunset about 19:51 local time. Both shift across the month — the month ends 2 hours 39 minutes shorter than it starts.
