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	62.5°F	54.0°F	44.5%	3 days (1.1 in.)	8 h. 7 min.
Hameenlinna	62.5°F	51.0°F	49.0%	1 day (0.9 in.)	7 h. 33 min.
Helsinki	61.5°F	55.2°F	42.7%	2 days (1.0 in.)	8 h. 21 min.
Imatra	64.0°F	52.7°F	44.3%	-	8 h. 9 min.
Joensuu	60.3°F	52.2°F	43.9%	1 day (0.7 in.)	8 h. 14 min.
Juvaskyla	61.4°F	50.3°F	47.5%	2 days (1.0 in.)	7 h. 46 min.
Kemi	55.1°F	51.7°F	50.5%	2 days (0.8 in.)	7 h. 27 min.
Koli National Park	59.7°F	51.8°F	44.1%	-	8 h. 14 min.
Kotka	59.9°F	56.8°F	38.7%	-	8 h. 52 min.
Kouvola	63.6°F	52.7°F	41.0%	-	8 h. 35 min.
Kuopio	59.9°F	52.6°F	44.8%	-	8 h. 8 min.
Lahti	62.8°F	52.0°F	44.7%	-	8 h. 6 min.
Lappeenranta	63.4°F	53.1°F	41.6%	-	8 h. 30 min.
Levi	55.6°F	46.7°F	63.2%	1 day (0.6 in.)	5 h. 50 min.
Mikkeli	63.0°F	51.4°F	45.7%	-	7 h. 59 min.
Oulu	58.1°F	51.6°F	46.8%	1 day (0.7 in.)	7 h. 55 min.
Pori	62.0°F	53.2°F	45.6%	-	8 h. 0 min.
Porvoo	59.8°F	56.9°F	40.2%	-	8 h. 40 min.
Rovaniemi	56.4°F	48.7°F	59.3%	-	6 h. 19 min.
Ruka	56.8°F	47.9°F	58.7%	1 day (0.8 in.)	6 h. 23 min.
Saariselka	54.5°F	46.2°F	60.4%	1 day (0.7 in.)	6 h. 13 min.
Savolinna	62.1°F	52.9°F	43.5%	1 day (0.5 in.)	8 h. 16 min.
Seinajoki	61.7°F	50.3°F	49.1%	2 days (0.8 in.)	7 h. 34 min.
Tahko	60.3°F	49.5°F	47.3%	-	7 h. 49 min.
Tampere	62.5°F	50.7°F	49.4%	1 day (1.1 in.)	7 h. 30 min.
Turku	61.7°F	54.1°F	46.1%	2 days (1.0 in.)	7 h. 55 min.
Vaasa	59.4°F	52.8°F	43.7%	1 day (0.7 in.)	8 h. 16 min.
Vantaa	62.5°F	53.6°F	43.7%	2 days (1.1 in.)	8 h. 13 min.
Vuokatti	60.3°F	49.3°F	49.8%	-	7 h. 30 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