Irkutsk Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Irkutsk Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-21.73125	-20.7		-15.293750000000001	-6.2
	-22.9625	-20.9		-15.831250000000002	-5
	-23.41875	-20.3		-15.737499999999999	-6
	-23.049999999999997	-21		-14.85625	-4.2
	-23.318749999999998	-19.2		-15.7125	-8.4
	-23.4625	-23.2		-14.3875	-12.4
	-22.031250000000004	-22.4		-14.0875	-4.9
	-20.949999999999996	-18.7		-14.037500000000001	-7.9
	-21.7375	-23		-14.524999999999999	-15
	-22.099999999999998	-28		-14.66875	-12.5
	-22.137499999999996	-21.5		-14.062499999999996	-9.3
	-22.55	-32.2		-13.000000000000002	-19
	-23.099999999999998	-24.5		-14.65625	-9.7
	-23.468749999999996	-23.5		-14.493750000000002	-9.9
Jan.	-22.075	-36.2		-13.325000000000003	-22.2
	-21.462500000000002	-38.5		-13.375	-26.4
	-22.225	-36.8		-14.881249999999998	-28.2
	-22.850000000000005	-30.7		-14.5375	-25.6
	-23.474999999999998	-31.7		-15.85	-23.9
	-23.631249999999998	-39.3		-15.056250000000002	-22.5
	-25.18125	-37.3		-16.175	-20.3
	-23.53125	-32.5		-15.799999999999999	-15
	-23.60625	-29.2		-14.931250000000002	-15.1
	-22.775	-30.6		-15.3625	-13.7
	-23.312499999999996	-17.3		-15.0375	-15.2
	-24.499999999999996	-27.9		-14.743750000000002	-14.4
	-25.00625	-32		-15.212499999999999	-14.9
	-23.818749999999998	-30.1		-14.387500000000001	-12.6
	-24.631249999999998	-27.6		-15.35625	-12.5
	-24.5875	-25.1		-14.993749999999999	-11.4
	-26.45625	-17.6		-15.9625	-6.2
	-26.88125	-17.1		-17.375	-4.6
	-26.474999999999994	-19.5		-17.55625	-9
	-25.081250000000004	-28.7		-14.981250000000001	-15.1
	-23.324999999999992	-30.7		-13.256249999999998	-21.9
	-23.39375	-34.1		-12.612500000000004	-17.5
	-23.7625	-29.7		-13.36875	-10.6
	-22.575	-23.5		-11.9375	-9.6
	-21.693749999999998	-25.5		-12.537500000000001	-10.5
	-22.006249999999998	-19.8		-12.718749999999998	-6.7
	-21.175	-20.2		-11.9	-4.3
	-21.356250000000003	-17.2		-10.806249999999999	-1.9
	-21.874999999999996	-12.9		-12.618749999999999	0.2
	-22.6375	-22.7		-12.212500000000002	-5.4
	-22.068749999999998	-26.2		-10.975	-7.1
Feb.	-20.5125	-20.8		-10.937499999999998	-1.7
	-21.425	-16.3		-10.45	-1.8
	-21.35625	-17.7		-10.09375	0
	-19.0125	-17.9		-8.28125	0
	-20.31875	-8.1		-9.6625	3.6
	-18.8875	-16.9		-8.00625	-2.7
	-19.94375	-19.1		-7.818749999999999	-13.8
	-18.881249999999998	-29.9		-7.556250000000001	-17.2
	-18.8625	-32.6		-7.581250000000001	-16.7
	-18.656250000000004	-28.1		-7.85	-17.3
	-18.925	-25.7		-6.787499999999999	-17.9
	-18.656249999999996	-26.9		-7.262499999999999	-16.8
	-18.318749999999998	-30.2		-8.53125	-15
	-19.637500000000003	-29.2		-7.762499999999999	-16.5
	-17.15625	-29.2		-5.168749999999999	-12.5
	-15.918750000000001	-27.1		-4.38125	-13.8
	-15.993750000000002	-28.4		-5.375	-9.5
	-17.143749999999997	-24		-5.5687500000000005	-7.3
	-16.800000000000004	-21		-4.449999999999999	-3
	-16.19375	-16.5		-4.14375	-5
	-16.20625	-17		-4.36875	-2.5
	-14.624999999999998	-16.3		-3.7500000000000004	0.5
	-14.087500000000002	-14.4		-3.2187500000000004	2.6
	-14.787500000000001	-9.4		-3.44375	3.2
	-15	-6.7		-3.15	-0.4
	-14.65625	-18.4		-2.7187499999999996	-7.7
	-13.38125	-19.1		-2.3312500000000003	-3.1
	-12.29375	-12.4		-1.6	0.1
Mar.	-12.162500000000001	-13.9		-0.1687500000000001	0.4
	-11.506250000000001	-15.1		-0.04374999999999993	-6.8
	-11.781249999999998	-14.2		-1.55	-6.3
	-12.56875	-10.3		-1.1312499999999996	1.5
	-12.462500000000002	-9.9		-0.8187500000000003	0.8
	-10.0125	-10.5		0.9125000000000001	2.1
	-9.9125	-6.6		-0.11249999999999982	3.6
	-10.44375	-7.8		1.3187499999999999	7.6
	-9.71875	-5.2		1.3437499999999998	3.6
	-7.9375	-5.6		2.5312499999999996	6.1
	-8.03125	-3.1		3.0624999999999996	2.7
	-7.24375	-4		2.6374999999999997	6.7
	-6.85625	-2.2		2.725	6.1
	-6.73125	-2.1		3.3874999999999997	3.2
	-5.925	-3.7		3.3750000000000004	8.6
	-6.10625	-4.5		4.1125	2.4
	-5.78125	-6.2		4.03125	3
	-5.59375	-5.3		4.525	4.6
	-5.03125	-3		4.624999999999999	5.2
	-5.125	-2		4.8125	6.5
	-4.612500000000001	-2.1		4.981249999999999	3.5
	-4.78125	-5		5.25625	3.2
	-3.7500000000000004	-3.9		7.293749999999999	6.7
	-3.3874999999999997	-0.4		8.312499999999998	7.5
	-3.29375	-3		6.475	9.5
	-3.3562499999999993	-1.2		5.6625	7.4
	-3.75	-4.4		5.39375	3.5
	-3.7	-3.7		7.0125	1.1
	-2.875	-6.4		8.40625	1.7
	-2.3375	-4.5		9.337499999999999	11.9
	-2.2875000000000005	-2.4		8.89375	4.3
Apr.	-2.2875	-4.8		8.49375	4.6
	-2.48125	-4.2		9.01875	8.3
	-1.8250000000000002	-2.9		11.14375	11
	-1.0499999999999998	-6.2		10.468749999999998	-1.1
	-2.21875	-8.3		8.29375	5.1
	-2.6374999999999997	-5.4		8.425	5.4
	-2.05625	-2.3		9.00625	7.9
	-1.7312500000000002	-1.9		9.287500000000001	6.2
	-2.25625	-3.3		9.581249999999997	6.6
	-1.2875	-3.1		10.687499999999998	11
	-0.53125	1		10.45625	12.9
	-1.2687499999999998	2.6		12.3375	9.5
	0.48125000000000007	-0.5		13.84375	14.8
	0.61875	1.7		13.468749999999996	20.3
	0.15000000000000016	3.3		12.274999999999999	11.3
	1.1249999999999998	1.6		14.875000000000002	14.8
	2.325	7.4		14.293750000000001	15.5
	1.3062500000000001	5		12.406250000000002	19.3
	1.1875	6.6		12.2125	25.8
	0.55	4.4		13.05	12.5
	0.65625	3.1		12.4625	9.5
	1.10625	0.4		16.00625	16.1
	2.9374999999999996	3.3		14.7875	19.1
	2.1812500000000004	5.6		14.993749999999997	15
	1.8312500000000003	7.8		16.4375	22
	2.89375	9.5		14.08125	26.2
	2.28125	8.8		13.81875	21.9
	1.975	2.8		13.7875	12.6
	2.1375	3.1		15.175	12.9
	2.8625	2.2		14.131249999999998	14.5
May	2.43125	3.8		17.431250000000002	8.9
	4.2875	3.2		19.593750000000004	14.3
	4.631249999999999	1.9		16.78125	17.5
	3.5687499999999996	4		15.175	6.9
	2.75625	4		14.6625	12.3
	3.15625	3.5		16.84375	18.3
	4.687499999999999	7.5		16.91875	16.9
	5.6312500000000005	7.2		16.88125	20.9
	5.15625	1.1		18.993749999999995	6.9
	5.499999999999999	-0.7		20.2625	16.1
	6.124999999999999	4.2		20.36875	14.2
	6.8125	4.3		19.556250000000002	17.1
	5.743750000000001	5.2		17.95	21.6
	5.081250000000001	9.3		17.468750000000004	26.2
	5.1812499999999995	12.3		18.793750000000003	29.6
	6.2875000000000005	7.6		18.875000000000004	17.3
	6.106249999999998	6.5		20.16875	16.1
	6.625000000000001	6.3		19.137500000000003	16.3
	6.56875	4.8		19.443749999999998	12.6
	7.612499999999999	5.6		18.699999999999996	17.6
	6.825	5.5		19.54375	14.4
	7.206249999999999	4.9		20.60625	20
	8.18125	7.2		19.2875	23
	7.43125	11.5		20.693749999999998	19.1
	8.581249999999999	9.1		21.71875	24.3
	8.70625	9.5		22.987499999999997	26.2
	9.7125	9.3		23.256250000000005	28.7
	10.618749999999999	12.9		22.756250000000005	21.9
	10.774999999999999	13.3		23.893749999999997	22.9
	10.6375	10.3		23.206249999999997	25.9
	10.23125	10.6		23.399999999999995	24.6
Jun.	10.7625	10		24.66875	26.6
	11.131250000000001	9.5		25.812500000000004	27.9
	12.187500000000002	11.4		23.79375	20.7
	11.543750000000001	8.5		24.4125	14.9
	11.337499999999999	6.1		26.825	16.3
	12.30625	8.1		27.2	17.8
	12.7	8		26.987500000000004	15
	13.337499999999997	6.4		24.974999999999994	17.2
	12.506250000000003	10.6		25.724999999999998	22.6
	12.012499999999998	8.5		24.400000000000006	27.8
	11.84375	12.2		25.112500000000004	26.9
	12.0625	11.6		24.124999999999996	29.5
	12.424999999999999	13.4		24.325000000000003	28.7
	12.375000000000002	14.3		23.687499999999996	29.5
	12.456249999999997	14.6		25.193749999999998	30.7
	13.031249999999998	14		25.587500000000002	31.5
	12.837499999999999	16.9		26.387500000000003	28.4
	13.599999999999998	14.5		26.168750000000003	29.5
	13.33125	15.4		26.062500000000004	30.3
	13.33125	13.4		24.793750000000003	29.1
	12.7375	15.3		24.606250000000003	31
	12.712500000000002	14.3		24.5	33
	12.68125	16.1		25.062500000000004	25.2
	12.668750000000001	15.9		25.381249999999998	20.6
	12.662499999999998	13.5		24.16875	27.4
	12.45	10.1		24.781250000000004	16.7
	13.55	8.8		25.8	12.4
	14.150000000000002	6.4		25.718749999999996	21.2
	13.28125	10.6		24.0875	19.5
	13.287500000000001	8.8		24.8125	24.7
Jul.	13.550000000000002	10.6		26.468749999999996	24.4
	13.874999999999998	11.9		25.668750000000003	23.7
	13.7125	11.6		24.50625	28.8
	12.912500000000001	12.9		24.925	27.8
	13.1875	13		25.699999999999996	26.3
	13.3375	13.1		25.7	25.7
	13.19375	11.4		24.287500000000005	27.2
	13.243749999999997	11.9		24.625	28.6
	13.524999999999999	12.9		23.993750000000002	28.3
	13.85	16.2		23.43125	32
	13.35625	16.1		23.112499999999997	21.1
	12.575	16		25.087500000000002	24.2
	13.14375	16.3		24.4	24.9
	13.187500000000002	15.4		25.243749999999995	26.5
	13.4625	13.5		25.912499999999998	28.1
	14.01875	16.4		24.256249999999998	22.1
	13.700000000000001	16		25.8875	25
	14.7125	15.2		25.493750000000002	23.1
	14.306249999999999	14.5		24.300000000000004	28.1
	13.55625	15.6		24.462500000000002	29.9
	13.543750000000001	15.3		24.456250000000004	30.2
	13.4875	15.1		24.14375	30.7
	13.418749999999998	14.7		23.775	29.6
	12.58125	15.3		22.187499999999996	29.6
	12.45	15.4		23.818749999999994	19.9
	12.475	9.7		24.037499999999998	25.5
	12.762500000000001	7.2		23.13125	23.8
	11.737499999999999	11.9		23.768749999999997	21
	11.862499999999999	9.5		23.46875	26.2
	12.943750000000001	9.9		23.250000000000004	27.2
	12.456250000000002	14.4		23.187499999999996	25
Aug.	12.35625	11.9		22.4125	25.7
	11.943749999999998		10.5	21.95625		16.3
	11.5625		8.9	20.73125		20.4
	11.212499999999999		9.1	21.431249999999995		24.8
	10.725000000000001		10.1	22.10625		25.2
	11.506249999999998		9.1	21.83125		27.8
	11.35625		11.6	20.3125		16.3
	10.612499999999997		9.5	21.418749999999996		25.5
	11.43125		12.4	21.5625		26.3
	10.381250000000001		10.1	19.987499999999997		20.9
	10.05625		10	20.6		21.1
	10.14375		10.6	22.618750000000002		21.8
	10.612499999999999		10.5	21.65625		21.8
	10.318750000000001		10	21.006249999999998		20.8
	9.94375		9.7	20.975		21
	9.768749999999999		10	20.175		19.7
	9.84375		9.8	21.650000000000002		21.9
	10.3125		10.2	21.037499999999998		21.8
	10.35		10.1	21.2625		20.7
	9.125		9	18.45		17.7
	8.05		7.6	17.01875		16.9
	7.312499999999999		7.1	16.875		17
	7.2875000000000005		7	16.88125		16.1
	6.787499999999999		6.1	15.80625		16
	6.5874999999999995		6.6	17.575000000000003		17.1
	6.8500000000000005		6.8	17.9125		17.9
	6.78125		6.5	16.675000000000004		16.1
	5.88125		5.8	16.025000000000002		15.6
	6.66875		6.4	16.999999999999996		17.5
	5.73125		6	15.4375		15.4
	5.10625		5.2	14.1375		14
Sep.	4.6937500000000005		4.7	14.45		14.3
	5.53125			15.112500000000002
	5.268750000000001			17.175
	5.6			15.2375
	5.38125			15.656250000000002
	4.625			15.38125
	4.375			14.693750000000001
	5.237499999999999			15.193750000000001
	5.418749999999999			15.35625
	4.96875			14.437499999999998
	4.13125			13.656249999999998
	3.1312500000000005			11.499999999999998
	1.6500000000000001			8.95
	0.7500000000000001			10.2625
	1.6312499999999999			11.262500000000001
	1.1624999999999999			10.5875
	0.15624999999999997			9.03125
	0.7125000000000002			9.24375
	0.47500000000000003			10.15
	0.525			10.475
	0.5750000000000001			9.85625
	-0.3999999999999999			8.00625
	-0.49374999999999997			8.71875
	-0.09999999999999995			8.7875
	-0.43125			8.51875
	-1.2499999999999998			8.61875
	-0.6875			8.218750000000002
	-1.0749999999999997			7.225
	-1.3937500000000003			7.281249999999999
	-2.0562500000000004			5.406250000000001
Oct.	-2.35625			5.874999999999999
	-2.2375			6.10625
	-2.5500000000000003			6.04375
	-2.2562499999999996			5.637499999999999
	-2.9312500000000004			5.025
	-3.9062500000000004			4.6187499999999995
	-3.387500000000001			4.5062500000000005
	-2.9624999999999995			5.175
	-2.2375			6.218749999999999
	-2.59375			5.062499999999999
	-3.9624999999999995			3.8312499999999994
	-3.63125			4.4624999999999995
	-2.9437500000000005			4.925
	-4.0625			4.0375
	-3.45625			4.168749999999999
	-4.11875			3.2625
	-4.3687499999999995			2.7187499999999996
	-4.375			2.825
	-4.9312499999999995			1.46875
	-6.73125			1.7437500000000001
	-6.8062499999999995			0.09375000000000011
	-7.0249999999999995			0.23124999999999998
	-6.2250000000000005			1.3375
	-6.8374999999999995			0.6000000000000001
	-7.33125			0.4437500000000001
	-6.51875			0.5375
	-7.5687500000000005			-1.0312499999999998
	-9.5125			-2.59375
	-10.387500000000001			-3.6312500000000014
	-11.181249999999997			-3.9375000000000004
	-11.05			-3.637500000000001
Nov.	-10.968750000000002			-4.23125
	-10.775			-4.3062499999999995
	-12.8			-5.3999999999999995
	-12.687500000000002			-5.4312499999999995
	-12.625000000000002			-5.500000000000001
	-13.275000000000002			-5.768749999999999
	-13.44375			-6.8625
	-13.83125			-6.65
	-13.8125			-6.806250000000001
	-14.481250000000001			-6.625000000000001
	-15.093750000000002			-6.512499999999999
	-14.087500000000002			-7.599999999999999
	-16.6375			-8.806250000000002
	-17.24375			-10.174999999999999
	-16.45			-9.575
	-17.0375			-9.0125
	-16.331249999999997			-8.70625
	-15.6375			-8.99375
	-15.806249999999999			-8.506249999999998
	-17.212500000000002			-8.656250000000002
	-17.4875			-10.450000000000001
	-17.675			-9.925
	-17.46875			-9.637499999999998
	-18.60625			-10.981250000000003
	-19			-10.63125
	-20.5875			-13.225000000000001
	-20.874999999999996			-13.15
	-20.6			-13.656250000000002
	-20.749999999999996			-13.9125
	-21.143749999999997			-14.375
Dec.	-20.043750000000003			-12.7625
	-18.6			-11.83125
	-18.568749999999998			-11.156249999999998
	-19.799999999999997			-12.38125
	-19.90625			-12.14375
	-19.775000000000002			-11.73125
	-21.46875			-12.381250000000001
	-22.25			-14.875
	-22.4125			-14.825
	-22.575000000000003			-14.225
	-22.337500000000006			-13.85
	-22.268749999999997			-14.200000000000001
	-22.781249999999996			-14.20625
	-21.28125			-13.375000000000002
	-21.59375			-15.037499999999998
	-21.499999999999996			-13.337499999999999
	-21.226666666666667			-13.540000000000001

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

33°C

Highest Temp

6 Jul. 26

-39°C

Lowest Temp

20 Jan. 26

Seasonal Breakdown

Hottest MonthAugust26.37°C

Coldest MonthJanuary-27.08°C

Wettest MonthMay4.11mm

Windiest MonthApril18.08km/h

Irkutsk Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

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Frequently Asked Questions

1. What is the hottest month in Irkutsk historically?

July is historically Irkutsk's hottest month, with average maximum temperatures around 25°C. During peak heatwave events, the highest recorded temperatures have reached 36°C on 2025-06-21.

2. What is the coldest month in Irkutsk historically?

January is Irkutsk's coldest month, with average minimum temperatures around -23°C. The all-time record low of -42°C was recorded on 2023-01-23.

3. What is the average annual rainfall in Irkutsk over the past 17 years?

Irkutsk's average annual rainfall is approximately 440.7mm, based on records spanning 17 years.

4. How many rainy days does Irkutsk experience on average per year?

Irkutsk historically records approximately 151.9 rainy days per year. July has the highest number of rain days at an average of 18.2 days.

5. What is the all-time highest temperature ever recorded in Irkutsk?

The all-time highest temperature recorded in Irkutsk is 36°C on 2025-06-21.

6. What is the all-time lowest temperature ever recorded in Irkutsk?

The all-time lowest temperature recorded in Irkutsk is -42°C on 2023-01-23.

7. What is the windiest time of year in Irkutsk historically?

Irkutsk experiences its strongest winds during May. The historic gust record of 40 kph was recorded on 2025-04-15.

8. What is the highest and lowest humidity in Irkutsk during a year?

Usually, Irkutsk's humidity peaks in January at around 94.2% and drops to its lowest in May at approximately 54.7%.

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Irkutsk Historic Weather Records
Analyse hottest, coldest, windiest & wettest days