Uusikaupunki
Finland
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Uusikaupunki, Finland

Sea temperature

In Uusikaupunki, Finland, the average seawater temperature in Septiembre is 10.3°C (50.5°F).
Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

Daylight

The average length of the day in Septiembre is 12.9h.

What is the sea water temperature in Septiembre in Uusikaupunki?

In Septiembre, the average sea temperature in Uusikaupunki is 10.3°C (50.5°F). Swimming in 10.3°C (50.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in Septiembre in Uusikaupunki?

The average length of the day in Septiembre in Uusikaupunki is 12.9h.
Average sea temperature in September - Uusikaupunki, Finland
  • Average sea temperature in September: 10.3°C

The best month for swimming (with the highest average sea temperature) is August (13.1°C).
Coldest months (with the lowest average sea temperature) are February and March (-0.3°C).

Average daylight in September - Uusikaupunki, Finland
  • Average daylight in September: 12.9h

The month with the longest days is June (Average daylight: 19h).
The month with shortest days is December (Average daylight: 5.8h).