The highest day temperature in June 2025 was 85°F. The lowest night temperature was 49°F. The average values for day and night temperatures during June were 69.8°F и 70.9°F respectivly.

The average sea surface temperature in June 2025 for Irkutsk was 51.8°F. The maximum and minimum values were 45.0°F and 58.0°F respectively.

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

Precipitation total in June for Irkutsk is 1.3 in.

The average wind speed in June is 5.6 mph. It makes June one of the most windy months of the year for Irkutsk.

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 Irkutsk in June is 11.3 hours.