June weather forecast
Koper, Slovenia

Weather in June

Sea temperature

In Koper, Slovenia, in June, the average water temperature is 22.8°C (73°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 22.8°C (73°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

With an average of 15h and 38min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 05:19 and sunset at 20:46. On the last day of June, in Koper, sunrise is at 05:19 and sunset at 20:58 CEST.
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FAQ

What is the water temperature in June in Koper?

In Koper, Slovenia, the average seawater temperature in June is 22.8°C (73°F). For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 22.8°C (73°F).

When are the longest days in Koper?

June has the longest days of the year in Koper, with an average of 15h and 38min of daylight.

How many hours of daylight does Koper have in June?

The average day length in June is 15h and 38min.

When is the sunrise / sunset in June in Koper?

On the first day of June, sunrise is at 05:19 and sunset at 20:46. On the last day of the month, sunrise is at 05:19 and sunset at 20:58 CEST.

Average sea temperature in June
Koper, Slovenia

Average sea temperature in June - Koper, Slovenia
  • Average sea temperature in June: 22.8°C

The best months for swimming (with the highest average sea temperature) are July and August (24.8°C).
The coldest month (with the lowest average sea temperature) is February (9.3°C).

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Average daylight in June
Koper, Slovenia

Average daylight in June - Koper, Slovenia
  • Average daylight in June: 15h and 38min

The month with the longest days is June (Average daylight: 15h and 38min).
The month with the shortest days is December (Average daylight: 8h and 46min).

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