Best time to swim in Slovenia Sea temperature by month

Do you want to go to the seaside in Slovenia? But when should you go to be sure to enjoy good sea water temperature and be able to swim for a long time? Now or another month during the year? On this page, find the sea temperature by month in Slovenia.

Swimming in Slovenia by month

Discover swimming conditions in detail in Slovenia by month below. Click on the links for each month to see details about the sea temperature in the cities of: Koper, Piran and Portorož.

Month sea temperature Details
51°F to 51°F Sea temperature
in Slovenia in january
49°F to 49°F Sea temperature
in Slovenia in february
50°F Sea temperature
in Slovenia in march
56°F to 56°F Sea temperature
in Slovenia in april
65°F Sea temperature
in Slovenia in may
74°F Sea temperature
in Slovenia in june
77°F Sea temperature
in Slovenia in july
77°F to 77°F Sea temperature
in Slovenia in august
74°F to 74°F Sea temperature
in Slovenia in september
67°F Sea temperature
in Slovenia in october
61°F to 61°F Sea temperature
in Slovenia in november
56°F Sea temperature
in Slovenia in december

Where and when should you swim in Slovenia?

Koper

Best time to swim in Koper

The best months for swimming in Koper are %MONTHS.

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Piran

Best time to swim in Piran

The best months for swimming in Piran are %MONTHS.

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Portorož

Best time to swim in Portorož

The best months for swimming in Portorož are %MONTHS.

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Water temperatures in Slovenia over the entire year

On this chart, we show you the variation of the average sea water temperature in Slovenia for the cities of: Koper, Piran and Portorož.

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