Turku weather in September (Southern Finland, Finland)

Curious about the September weather in Turku? Check out this comprehensive weather guide.

In September, Turku typically experiences moderate temperatures and moderate rainfall. Throughout the daytime, temperatures often hover around 17°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 8°C.

Turku in September usually receives moderate rainfall, averaging around 64 mm for the month. Rain is expected on roughly 18 days.

The area experiences a moderate amount of sunshine, with approximately 154 hours of sunlight expected. This makes it neither too gloomy nor overly bright.

If your ideal day consists of dry skies and moderate temperatures June, July and August generally stand out with the best circumstances. While January, February, March, April, October, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Turku climate page with graphs.

 

Turku, monthly averages in September

Min TemperatureMin Temperature 8°C  
Max TemperatureMax Temperature 17°C  
Chance of RainChance of Rain 61%  
PrecipitationPrecipitation 64 mm  
Rainy daysRainy days 18 days  
SunshineSunshine 154 hours  
Percentage SunshinePercentage Sunshine  

Where to go in Finland in September

Find out more about the weather in Finland in September and which places have the best weather conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Turku in September?

For visitors traveling to Turku, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming
5/10
Cycling
6/10
Walking
6/10
Barbeque
6/10
Camping
4/10
Outdoor sports
10/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Turku.

Our site offers climate and forecast data for every country in the world. Are you going to Finland? On this website you can find historical weather averages for many cities in Finland. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.