Hamina
Finland
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Hamina, Finland

Sea temperature

In Hamina, Finland, in Septiembre, the average water temperature is 15.1°C (59.2°F).
Note: For most, swimming in 15.1°C (59.2°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

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

How cold is the water in Septiembre in Hamina?

In Septiembre, the average sea temperature in Hamina, Finland, is 15.1°C (59.2°F). Swimming in 15.1°C (59.2°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Hamina have in Septiembre?

The average length of the day in Septiembre in Hamina, Finland, is 12.9h.
Average sea temperature in September - Hamina, Finland
  • Average sea temperature in September: 15.1°C

The best month for swimming (with the highest average sea temperature) is July (19.3°C).
The coldest month (with the lowest average sea temperature) is February (-0.5°C).

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

The month with the longest days is June (Average daylight: 18.9h).
The month with shortest days is December (Average daylight: 5.9h).