Measurements:
°C
°F
Irkutsk
84°F
S 4 mph
Feels like: 86°F
Precip: 2%
World Resorts Russia Irkutsk Weather

Irkutsk Sea Water Temperature

Current Sea Water Temperature:
+63.0°F
Maximum Sea Water Temperature in August: 68.4°F
Minimum Sea Water Temperature in August: 30.0°F
Average water temperature in August: 60.2°F

Sea Water Temperature for the Last 10 Days:

August 04 63.0°F July 30 59.2°F
August 03 62.8°F July 29 59.2°F
August 02 61.8°F July 28 59.4°F
August 01 61.8°F July 27 59.4°F
July 31 59.8°F July 26 58.6°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Irkutsk was 58.1°F. The maximum and minimum values were 53.2°F and 61.6°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 79.2 °F
June 75.0 °F
August 73.3 °F
Warmest sea temperature:
August 60.2 °F
July 55.3 °F
September 54.7 °F
The most cold months:
January -2.1 °F
December 2.7 °F
February 5.9 °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 +82
Anapa +82
Arhipo-Osipovka +80
Dombay +62
Gelendzhik +80
Golubickaya +82
Lazarevskoye +78
Moscow +76
Novorossiysk +82
Seliger +72
Sirius +82
Sochi +80
St Petersburg +66
Yaroslavl +70
Zelenogradsk +66
24 Hours Weather Forecast
Irkutsk
Local time: 13:12
05 aug, wednesday
1500 92°F
S
3 mph
1800 90°F
S
4 mph
2100 74°F
NW
3 mph
06 aug, thursday
0000 68°F
NW
5 mph
0300 64°F
NW
5 mph
0600 60°F
NW
5 mph
0900 72°F
NW
8 mph
1200 84°F
N
11 mph