The highest day temperature in June 2023 was 94°F. The lowest night temperature was 60°F. The average values for day and night temperatures during June were 82.3°F и 64.7°F respectivly.

The average sea surface temperature in June 2023 for Koper was 72.8°F. The maximum and minimum values were 63.6°F and 78.6°F respectively.

Most of the days in June are sunny but you can also expect cloudy and gloomy days.

Precipitation total in June for Koper is 2.9 in.

The average wind speed in June is 5.2 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Koper in June is 11.8 hours.