Finland

Finland Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Finland in September.

Are you planning a trip a to Finland in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Finland in September

September in Finland generally has temperatures that range from cold to mild, with moderate precipitation.

Temperatures

The average highest temperatures fluctuate between cold in Kilpisjärvi at 8°C (46°F) to mild in Turku at 17°C (63°F). Nighttime temperatures generally drop to 8°C (46°F) in Turku and 2°C (36°F) in Kilpisjärvi.

For a closer look at conditions across Finland, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Eckerö with an average of 55 mm (2.2 in) to moderate rainfall in Nurmes with 96 mm (3.8 in).

Average sunshine

Sunshine levels are moderate in most locations. Helsinki typically sees 151 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Finland by month

Best Places to Visit in Finland in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Finland.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Finland

What is the weather like in September for some of the most popular destinations in Finland?

Temperature range in Finland (September)

Precipitation variation in Finland (September)

Helsinki

In September Helsinki generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
22°C (72°F)
16°C (61°F)
10°C (50°F)
Min temperature
12°C (54°F)
8°C (46°F)
3°C (37°F)
Monthly sun hours
230 hours
151 hours
90 hours
Monthly rainfall
79 mm (3.1 in)
64 mm (2.5 in)
65 mm (2.6 in)
Monthly rainy days
16 days
17 days
17 days
Weather conditions

Rovaniemi

In September Rovaniemi generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around 5°C (41°F) and moderate monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
18°C (64°F)
13°C (55°F)
5°C (41°F)
Min temperature
9°C (48°F)
5°C (41°F)
-2°C (28°F)
Monthly sun hours
183 hours
112 hours
60 hours
Monthly rainfall
76 mm (3 in)
63 mm (2.5 in)
58 mm (2.3 in)
Monthly rainy days
17 days
18 days
20 days
Weather conditions

Levi

In September Levi generally has low temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
17°C (63°F)
12°C (54°F)
3°C (37°F)
Min temperature
8°C (46°F)
4°C (39°F)
-3°C (27°F)
Monthly sun hours
183 hours
112 hours
61 hours
Monthly rainfall
81 mm (3.2 in)
65 mm (2.6 in)
58 mm (2.3 in)
Monthly rainy days
17 days
16 days
18 days
Weather conditions

Ruka

In September Ruka generally has low temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 5°C (41°F) and moderate monthly rainfall. So on average the conditions are unpleasant that month.

August
September
October
Max temperature
17°C (63°F)
12°C (54°F)
4°C (39°F)
Min temperature
9°C (48°F)
5°C (41°F)
-1°C (30°F)
Monthly rainfall
78 mm (3.1 in)
67 mm (2.6 in)
62 mm (2.4 in)
Monthly rainy days
18 days
19 days
20 days
Weather conditions

Tampere

In September Tampere generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 8°C (46°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

August
September
October
Max temperature
21°C (70°F)
15°C (59°F)
8°C (46°F)
Min temperature
12°C (54°F)
8°C (46°F)
3°C (37°F)
Monthly rainfall
81 mm (3.2 in)
61 mm (2.4 in)
67 mm (2.6 in)
Monthly rainy days
16 days
18 days
17 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Finland.

Popular cities in September

Day & night temperatures, rainfall and average weather in Finland in September.

City Weather Day temp Night temp Rainfall
Helsinki 16°C (61°F) 8°C (46°F) 64 mm (2.5 in)
Rovaniemi 13°C (55°F) 5°C (41°F) 63 mm (2.5 in)
Levi 12°C (54°F) 4°C (39°F) 65 mm (2.6 in)
Vuokatti 13°C (55°F) 6°C (43°F) 76 mm (3 in)
Mariehamn 16°C (61°F) 12°C (54°F) 59 mm (2.3 in)
Vaasa 15°C (59°F) 7°C (45°F) 62 mm (2.4 in)

Finland weather in September: frequently asked questions

What is the weather like in Finland in September?

Expect tolerable weather across Finland in September. The popular destination of Helsinki averages 16°C (61°F) by day and 8°C (46°F) at night during this month.

What is the average temperature in Finland in September?

Helsinki averages a daytime maximum of 16°C (61°F) in September, with overnight lows close to 8°C (46°F).

Does Finland get a lot of rain in September?

Not particularly. Helsinki averages just 64 mm (2.5 in) of rain in September, making it a mostly dry month for Finland.

Is September a Good Time to Visit Finland?

In our opinion, September is a good time to visit Finland with overall tolerable weather in Helsinki. It's worth noting that weather conditions might differ depending on the location you visit.

On average, the best time to visit Finland is in June, July and August with generally perfect weather in Helsinki. On the other hand, the weather in January, February, March, April, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Finland.

Weather and climate has detailed information for every country in the world. Are you going to Finland? Get detailed 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 travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.