World Resorts Finland Weather

Sea water temperature in Finland in September

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In September warmest sea in Finland is usually observed in the following locations: Lappeenranta, Kotka, Savolinna.

Table below shows the average sea water temperature for marine resorts of Finland in September for the last three years.

Place name September 2024 September 2023 September 2022
Lappeenranta 64.4°F 62.0°F 57.5°F
Kotka 64.4°F 62.6°F 58.4°F
Savolinna 62.9°F 61.3°F 60.8°F
Imatra 62.4°F 61.1°F 59.6°F
Lahti 62.4°F 61.2°F 62.4°F
Vantaa 61.9°F 61.9°F 60.1°F
Porvoo 61.9°F 61.1°F 59.6°F
Turku 61.9°F 61.3°F 57.7°F
Espoo 61.8°F 61.8°F 59.8°F
Helsinki 61.7°F 61.9°F 60.0°F
Koli National Park 61.5°F 59.6°F 59.1°F
Juvaskyla 61.0°F 60.1°F 59.6°F
Pori 60.1°F 59.4°F 54.6°F
Vaasa 58.8°F 58.5°F 54.6°F
Kemi 58.2°F 56.5°F 53.9°F
Seinajoki 58.0°F 56.6°F 54.7°F
Oulu 58.0°F 56.7°F 54.0°F
Saariselka 54.0°F 53.4°F 51.2°F

Charts below show average sea water temperature for Finland resorts with the warmest sea in September.

You can also check other months of the year to see sea temperature of Finland resorts at that time.

Places in Finland:
Name
°F
+46°F
+45°F
+39°F
+45°F
+39°F
+41°F
+41°F
+46°F
+46°F
+39°F
+45°F
+45°F
+43°F
+36°F
Units of measurement: °C / °F