The highest day temperature in June 2025 was 78°F. The lowest night temperature was 45°F. The average values for day and night temperatures during June were 62.4°F и 51.7°F respectivly.

The average sea surface temperature in June 2025 for Lappeenranta was 59.0°F. The maximum and minimum values were 54.2°F and 62.8°F respectively.

You can expect various weather conditions during June. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in June for Lappeenranta is 1.7 in.

The average wind speed in June is 7.5 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 Lappeenranta in June is 11.4 hours.