Measurements:
°C
°F
Irkutsk
6°F
SE 3 mph
Feels like: -2°F
Precip: 65%
World Resorts Russia Irkutsk Weather

Irkutsk Sea Water Temperature

Current Sea Water Temperature:
+38.2°F
Maximum Sea Water Temperature in December: 39.2°F
Minimum Sea Water Temperature in December: 31.0°F
Average water temperature in December: 36.3°F

Sea Water Temperature for the Last 10 Days:

December 05 38.2°F November 30 38.2°F
December 04 38.2°F November 29 38.4°F
December 03 38.2°F November 28 38.4°F
December 02 38.2°F November 27 38.6°F
December 01 38.2°F November 26 38.8°F

When is the Warmest Sea for Irkutsk?

According to our data for the last three years for Irkutsk the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Irkutsk was 64.9°F. The maximum and minimum values were 61.8°F and 66.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Irkutsk was 61.8°F. The maximum and minimum values were 55.8°F and 67.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Irkutsk was 60.0°F. The maximum and minimum values were 56.0°F and 64.0°F respectively.

Best Time to Visit Irkutsk
The most sunny months:
June 16 days
July 16 days
August 15 days
The most warm months:
July 79.3 °F
June 75.2 °F
August 73.3 °F
Warmest sea temperature:
August 60.2 °F
July 55.1 °F
September 54.7 °F
The most cold months:
January -1.8 °F
December 3.1 °F
February 5.8 °F
The most rainy months:
May 3 days
July 3 days
August 3 days
The most windy months:
May 7 mph
April 6 mph
June 6 mph

Irkutsk on the Weather Map

Russia Resorts:
NAME
Adler +52
Anapa +42
Arhipo-Osipovka +44
Dombay +28
Gelendzhik +42
Kabardinka +42
Lazarevskoye +50
Moscow +30
Novorossiysk +38
Seliger +34
Sirius +52
Sochi +52
St Petersburg +36
Yaroslavl +32
Zelenogradsk +42
24 Hours Weather Forecast
Irkutsk
Local time: 12:24
06 dec, saturday
1500 2°F
SE
3 mph
1800 2°F
SE
8 mph
2100 -2°F
SE
3 mph
07 dec, sunday
0000 -6°F
N
2 mph
0300 -10°F
NW
3 mph
0600 0°F
NW
4 mph
0900 6°F
NW
5 mph
1200 -2°F
W
4 mph