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

June weather forecast and climate
Hamina, Finland

Sea temperature

In Hamina, Finland, in June, the average water temperature is 13.6°C (56.5°F).
Note: Swimming in 13.6°C (56.5°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

June has the longest days of the year, with an average of 18.9h of daylight.

What is the water temperature in June in Hamina?

In Hamina, the average seawater temperature in June is 13.6°C (56.5°F). Swimming in 13.6°C (56.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

When are the longest days in Hamina?

June has the longest days of the year, with an average of 18.9h of daylight.

What is the average length of the day in June in Hamina?

In Hamina, Finland, the average length of the day in June is 18.9h.
Average sea temperature in June - Hamina, Finland
  • Average sea temperature in June: 13.6°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 June - Hamina, Finland
  • Average daylight in June: 18.9h

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