The highest day temperature in December 2023 was 20°F. The lowest night temperature was -31°F. The average values for day and night temperatures during December were -7.9°F и -5.6°F respectivly.

The average sea surface temperature in December 2023 for Irkutsk was 36.8°F. The maximum and minimum values were 34.6°F and 38.0°F respectively.

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation total in December for Irkutsk is 0.5 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 3.7 mph. It makes December one of the most windless 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 December is 2.8 hours.