The highest day temperature in June 2026 was 79°F. The lowest night temperature was 49°F. The average values for day and night temperatures during June were 65.2°F и 54.1°F respectivly.

The average sea surface temperature in June 2026 for Turku was 60.6°F. The maximum and minimum values were 53.2°F and 66.8°F respectively.

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

Precipitation total in June for Turku is 1.4 in.

The average wind speed in June is 8.9 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 Turku in June is 12.1 hours.