Seinäjoki weather in September (Western Finland, Finland)

Planning a trip to Seinäjoki in September? This guide provides all the details you need.

In September, Seinäjoki typically experiences moderate temperatures and moderate rainfall. Throughout the day, temperatures typically settle at around 15°C. But by evening, they drop to around 6°C.

Seinäjoki in September usually receives moderate rainfall, averaging around 60 mm for the month. Delving into the climate records from the past 30 years, one can predict that nearly 17 days of the month will see rainfall.

The city usually sees around 135 hours of sunlight, indicating a moderately sunny period.

Should you favor a climate that's both dry and comfortably warm June, July and August typically offer the most agreeable circumstances. On the other hand, January, February, March, April, October, November and December tend to be characterized by conditions that may not be as optimal.

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

 

Seinäjoki, monthly averages in September

Min Temperature 6°C  

Max Temperature 15°C  

Chance of Rain 55%  

Precipitation 60 mm  

Rainy days 17 days  

Sunshine 135 hours *  

Percentage Sunshine *  

* Data from: Vaasa, Finland (70 KM, 43 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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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 Seinäjoki in September?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

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

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 Seinäjoki.

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.