Omiš
Croatia
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Omiš, Croatia

Sea temperature

In September, the average sea temperature in Omiš, Croatia, is 23.9°C (75°F).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 23.9°C (75°F) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 25°C (77°F) to 28°C (82.4°F).)

Daylight

In Omiš, the average length of the day in September is 12.5h.

What is the sea temperature in September in Omiš?

In Omiš, the average seawater temperature in September is 23.9°C (75°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.9°C (75°F) water.

What is the average length of the day in September in Omiš?

In September, the average length of the day in Omiš, Croatia, is 12.5h.
Average sea temperature in September - Omiš, Croatia
  • Average sea temperature in September: 23.9°C

The best month for swimming (with the highest average sea temperature) is August (25°C).
Coldest months (with the lowest average sea temperature) are January and February (13.9°C).

Average daylight in September - Omiš, Croatia
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).