Table below will help you to find the best place for your vacation in Finland in September. Find the place with less rains and more sun. We also provide information about sea water temperature for marine resort.

Place name	Air temp day / night		Cloudiness	Rainy days (precipitation)	Sunny hours
Espoo	61.5°F	53.2°F	50.2%	2 days (1.0 in.)	7 h. 23 min.
Hameenlinna	61.0°F	50.5°F	54.6%	1 day (0.9 in.)	6 h. 50 min.
Helsinki	60.7°F	54.2°F	48.6%	1 day (0.9 in.)	7 h. 36 min.
Imatra	62.1°F	52.1°F	53.2%	-	7 h. 1 min.
Joensuu	58.5°F	51.6°F	52.8%	1 day (0.9 in.)	7 h. 6 min.
Juvaskyla	59.3°F	49.6°F	55.4%	2 days (0.9 in.)	6 h. 45 min.
Kemi	54.5°F	51.1°F	57.5%	2 days (1.1 in.)	6 h. 32 min.
Koli National Park	57.7°F	51.2°F	52.1%	1 day (1.1 in.)	7 h. 11 min.
Kotka	59.1°F	56.2°F	48.5%	-	7 h. 36 min.
Kouvola	61.4°F	51.9°F	51.2%	-	7 h. 16 min.
Kuopio	57.9°F	51.7°F	53.0%	1 day (1.1 in.)	7 h. 5 min.
Lahti	61.0°F	51.3°F	52.2%	-	7 h. 9 min.
Lappeenranta	61.5°F	52.4°F	51.6%	-	7 h. 13 min.
Levi	53.3°F	45.6°F	67.2%	-	5 h. 19 min.
Mikkeli	60.6°F	50.8°F	54.7%	-	6 h. 50 min.
Oulu	56.9°F	50.6°F	55.0%	1 day (0.8 in.)	6 h. 51 min.
Pori	60.8°F	52.7°F	50.9%	-	7 h. 19 min.
Porvoo	59.1°F	56.4°F	48.7%	-	7 h. 35 min.
Rovaniemi	54.6°F	47.5°F	64.0%	1 day (0.9 in.)	5 h. 42 min.
Ruka	54.0°F	46.9°F	65.6%	2 days (1.2 in.)	5 h. 29 min.
Saariselka	52.3°F	45.4°F	66.3%	-	5 h. 27 min.
Savolinna	60.1°F	51.9°F	52.4%	1 day (0.7 in.)	7 h. 8 min.
Seinajoki	60.2°F	49.8°F	54.0%	2 days (0.9 in.)	6 h. 56 min.
Tahko	57.8°F	48.8°F	56.3%	1 day (0.9 in.)	6 h. 39 min.
Tampere	60.8°F	50.1°F	53.6%	1 day (1.1 in.)	6 h. 58 min.
Turku	60.9°F	53.4°F	51.1%	1 day (1.0 in.)	7 h. 16 min.
Vaasa	58.7°F	52.4°F	47.9%	1 day (0.9 in.)	7 h. 44 min.
Vantaa	61.3°F	53.2°F	49.6%	1 day (1.0 in.)	7 h. 28 min.
Vuokatti	57.6°F	48.6°F	58.4%	-	6 h. 23 min.

* Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

Winter weather

Spring weather

Summer weather

Autumn weather

Name

°F

Vaasa