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

Itoigawa Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-0.22499999999999995	1		5.03125	2.2
	-0.20625	-2.7		5	1.5
	-0.27500000000000013	-0.7		4.8187500000000005	3.9
	-0.39374999999999993	-2.2		4.81875	4.9
	-0.35624999999999996	1		4.856249999999999	5
	-0.34375000000000006	-3.9		5.0125	3.4
	-0.5499999999999999	-4.5		4.425	5.5
	-0.65625	-1.8		4.98125	2.9
	-0.9374999999999999	-4.9		5.1375	3.8
	-0.9187499999999997	-1.9		3.775	7.2
	-1.44375	0.1		4.2375	4.7
	-1.8562500000000004	-1.2		4.46875	3.4
	-1.1624999999999996	-0.6		4.30625	6.4
	-1.7750000000000001	1.3		3.8312499999999994	3.3
Jan.	-1.46875	-0.7		4.1499999999999995	7.5
	-1.175	2.7		3.775	7.7
	-1.3875	0.6		3.61875	10.4
	-1.2875	-0.2		4.4375	3.5
	-1.1874999999999998	-0.6		4.825	6.6
	-0.6937500000000001	-2.6		5.237500000000001	4.4
	-0.7375	-4.7		4.6187499999999995	1.5
	-0.8	-1.9		4.65625	-0.1
	-0.6687500000000002	-6.8		4.956250000000001	1.5
	-1.2374999999999998	-1.3		3.8	1.7
	-1.5437499999999997	-1.5		3.5437499999999997	0.1
	-1.6874999999999998	-5.5		4.0875	1.7
	-1.1	-5.1		4.481250000000001	5.3
	-1.2312499999999997	0.2		4.71875	1.7
	-0.68125	-2.8		4.2125	1
	-0.8374999999999999	-0.2		4.3	0.9
	-1.1624999999999999	-4.6		4.431250000000001	2.4
	-1.55625	-4.8		5.2124999999999995	2.9
	-0.95	-3.9		4.887500000000001	1.5
	-1.1437500000000003	-4.7		4.937499999999999	3
	-1.925	-4.8		4.737500000000001	5.4
	-1.5187500000000003	1.1		3.8625000000000003	10.4
	-1.6562500000000004	0.3		3.9875	5.4
	-1.56875	-2.3		4.6125	-0.3
	-2.125	-3.5		3.1125000000000003	-1.1
	-1.5687499999999999	-5.3		3.2500000000000004	2.4
	-1.8437500000000004	-5.4		3.375	3.9
	-1.9062499999999998	0.6		3.9375	4.5
	-2.69375	-0.6		4.6937500000000005	5.7
	-0.1437499999999999	-1.4		5.387499999999999	8.3
	-0.2812500000000001	1.5		6.468749999999999	10.4
Feb.	0.0500000000000001	3.9		5.862500000000001	12.9
	-0.8874999999999998	2.4		5	7.9
	-1.60625	0.5		4.94375	4.5
	-1.2437500000000001	0.1		4.7562500000000005	8.1
	-0.5624999999999999	-1.5		5.437500000000001	3.4
	-0.45625000000000016	-2.9		5.85625	5.4
	-0.40000000000000013	1		4.68125	10.7
	-0.93125	3.7		6.349999999999999	14.9
	-0.0625	6.4		6.549999999999999	9.1
	-0.3812499999999999	4		6.36875	11.7
	-0.8812500000000001	6.7		6.456250000000001	8.4
	0.04375000000000007	5.5		6.35	11.6
	-0.6874999999999999	7.3		6.3875	11.9
	0.10625000000000004	5.7		7.562499999999999	10
	0.55	5		9.03125	7.8
	0.85	3.3		6.93125	8.1
	-0.43124999999999997	5.3		5.90625	10.5
	-0.33125000000000004	3.9		8.656249999999998	6.8
	1.4625000000000001	2.5		8.7	6.5
	0.8125	1.4		8.181249999999999	12.1
	1.19375	2.7		7.3125	6.8
	1.0437500000000004	1.7		8.081249999999999	5
	0.71875	0.8		9.10625	5.3
	0.44375	0		7.60625	3.8
	0.54375	-1.7		7.718749999999999	4.7
	0.8125	-0.5		10.768749999999999	5.6
	2.1875	0.4		10.8375	5.6
	2.10625	1.6		8.825	7.2
Mar.	1.4125	2.2		10.125	6.4
	1.96875	1.1		10.48125	7.5
	1.2375	1.3		8.893749999999999	8
	1.7687499999999998	1.5		10.868749999999999	12.1
	3.11875	4.7		10.85	9.2
	2.6687499999999993	2.7		12.34375	10.1
	2.8437500000000004	2.2		10.650000000000002	7.3
	2.41875	1.5		10.500000000000002	11.5
	1.7937500000000002	4.5		9.612499999999999	12.5
	2.08125	5.8		10.2375	9.7
	2.6	4.2		10.70625	12.9
	2.85625	8.9		9.9875	9.8
	1.99375	4.5		11.98125	11.7
	2.7312499999999993	5.8		12.6625	13.9
	2.69375	7.4		12.450000000000001	13.8
	3.1374999999999997	9.3		11.84375	16.5
	3.6062499999999997	9.9		12.300000000000004	13
	3.69375	9.8		12.681249999999999	11
	4.112500000000001	6.5		13.162500000000001	9.3
	5.35625	4.2		13.812499999999998	13.2
	4.80625	8.3		14.19375	13.9
	4.506249999999999	9.8		14.000000000000002	12.4
	5.6312500000000005	8.9		14.162500000000001	17.7
	5.2625	6.4		13.031250000000002	11.1
	4.5687500000000005	5		12.612499999999999	10.5
	4.1187499999999995	5.4		13.606249999999998	16.3
	4.74375	10.8		15.349999999999998	13
	5.3374999999999995	9.7		14.043750000000001	17.1
	5.06875	7.8		13.806249999999997	13.1
	5.393750000000001	7.8		15.175	16.8
	5.749999999999999	8.4		16.0375	16
Apr.	6.8812500000000005	11		13.956249999999997	16.9
	6.05625	8.6		16.28125	13
	6.5249999999999995	7.3		15.91875	17.7
	7.25	10		16.424999999999997	17.1
	7.35625	11		14.83125	17.2
	6.8374999999999995	11.4		16.30625	19.4
	7.45625	7.8		15.487499999999997	15.4
	7.543749999999999	7.1		16.162499999999998	17.7
	7.54375	9.3		15.71875	15.4
	8.0125	7.4		16.93125	13.6
	7.968750000000002	5.4		17.04375	15.2
	7.6625000000000005	8.8		17.1375	18.9
	8.443750000000001	9.6		18.38125	15.1
	8.49375	8.2		17.33125	18.1
	8.3375	10.1		18.11875	12.9
	9.26875	7.6		18.45	15.9
	9.78125	10.8		18.556250000000002	19.6
	9.675000000000002	9.5		18.700000000000003	17.8
	9.28125	10.2		19.7375	19.6
	10.243749999999999	10.2		20.293750000000003	16.1
	10.36875	5.7		20.35625	16.3
	11.081249999999999	9.4		21.037499999999998	18.3
	10.306249999999999	11.3		18.618750000000002	19.8
	9.75	9.8		18.999999999999996	20.1
	9.49375	7.8		18.65625	15.7
	9.987499999999999	7		19.40625	17.6
	10.3875	9.9		19.606250000000003	19.8
	10.9625	11.9		20.474999999999998	19.5
	11.512500000000001	11.8		20.49375	19.7
	11.418750000000003	10.7		20.481249999999996	18.9
May	11.368750000000002	10.1		22.024999999999995	19.1
	12.112499999999999	11		21.268749999999997	19.5
	12.524999999999999	12.3		21.7625	20.9
	12.137499999999998	13		21.83125	23.9
	12.2	15.6		21.3375	24.7
	13.0375	15.3		23.037499999999998	23.3
	13.3	15.1		21.924999999999994	17.5
	12.48125	13.9		21.143749999999997	18
	12.668750000000001	11.3		20.78125	21.9
	12.368749999999999	13.6		21.95	19.7
	13.16875	14		23.825	21.8
	13.850000000000001	15.7		22.118750000000002	23.6
	13.618750000000002	16.6		22.387500000000003	23.6
	14.5375	17		22.906250000000004	24.8
	14.193750000000001	11.6		22.306250000000002	17.5
	13.5125	11.2		22.218750000000004	23.9
	13.437499999999998	14.6		21.71875	25.3
	13.1875	15.6		22.368750000000006	25.7
	14.00625	16.1		22.975	21.9
	14.3125	15.5		22.637499999999996	19.1
	13.78125	14.9		23.2375	22.2
	14.000000000000002	14.1		23.450000000000006	25.4
	14.5625	16		23.531250000000004	21.3
	14.931250000000002	15.4		23.70625	23.6
	15.68125	16.8		23.243750000000006	21.7
	15.249999999999998	15.9		24.1125	17.6
	15.93125	11.9		24.799999999999997	19.6
	16.68125	11.6		24.46875	21
	16.73125	14.3		24.28125	22.7
	16.88125	13.9		24.73125	23.1
	16.88125	15.3		23.856250000000003	24.1
Jun.	16.693749999999998	15.5		24.09375	22.9
	16.950000000000003	14.8		24.618750000000002	24.2
	17.05	17.1		25.18125	26.4
	17.112500000000004	17		25.2875	25.5
	17.45	16.4		24.38125	24.7
	17.287499999999998	18.4		25.037499999999998	25.9
	17.99375	18.3		25.9875	23.6
	17.725	18.5		25.375	22
	17.95	15.5		24.71875	21
	17.637500000000003	14.2		25.14375	22.5
	17.4625	17.8		25.95	25.4
	18.2625	18.4		26.481250000000003	22.8
	19.106250000000003	18.5		26.3875	22.2
	18.975000000000005	17.3		26.275	24.2
	18.956249999999997	16.6		26.300000000000004	24.3
	19.5125	17.4		26.94375	24.5
	19.887499999999996	16.9		27.062499999999996	24.6
	20.243750000000002	18.3		27.756250000000005	21.2
	20.49375	17.1		27.83125	23.6
	20.23125	17		26.5375	25.6
	19.8625	18.4		26.618749999999995	25.8
	20.29375	19.1		27.41875	26.6
	20.575000000000003	18.8		27.10625	25.8
	20.4875	19.3		27.825000000000003	27.2
	21.000000000000004	20.6		28.14375	28.9
	21.149999999999995	21.2		28.2625	28.9
	20.85625	21		28.431249999999995	27.2
	20.78125	20.5		28.337500000000002	27.5
	20.981250000000003	21.2		27.756249999999998	25.3
	21.0125	20.9		28.481250000000006	29.2
Jul.	21.55625	21.3		28.243750000000002	31.5
	21.46875	22.1		28.937500000000007	26.7
	21.60625	21.8		29.4	27.9
	21.618750000000002	21.7		28.731250000000003	28.9
	21.556250000000002	22.4		28.662499999999998	30
	21.912499999999998	23.4		29.506250000000005	29.9
	21.63125	22.9		29.91875	28.4
	22.031249999999996	22.8		30.024999999999995	30
	22.3	23		28.70625	29
	21.95625	22.3		29.062499999999993	28.4
	22.175000000000004	22.2		29.96875	28.3
	22.156250000000004	21		30.7125	25.4
	22.431250000000002	20		30.193749999999998	26.2
	22.425000000000004	20.5		29.868749999999995	28.4
	22.768749999999994	20.7		30.11875	26.7
	22.78125	20.3		30.731250000000003	28.5
	23.19375	21.5		31.025	28.3
	23.006249999999994	21.6		31.087500000000002	29.9
	22.743750000000002	22.1		31.150000000000002	28.9
	22.818749999999998	22.2		31.343750000000004	27.9
	23.03125	21		31.73125	29.1
	24	20.3		32.581250000000004	30.1
	23.968750000000004	22		31.831250000000004	30.7
	23.7125	22.4		31.70625	31.2
	23.031249999999993	21.7		30.168749999999996	28.7
	23.18125	22.6		30.781249999999996	27.4
	23	19.7		30.493750000000002	26.3
	22.925	19.9		30.58125	25.2
	22.812499999999996	21		29.556250000000002	28.7
	22.349999999999998	20.8		29.893749999999997	30.4
	22.84375	21		30.70625	29.4
Aug.	23.293749999999996		21	30.993750000000002		29.3
	23.137500000000003		21.6	30.256249999999998		27.9
	22.462500000000002		22.1	29.9875		28.7
	22.4		21.5	29.987500000000004		30
	22.2375		21.9	29.918749999999996		30
	22.19375		22	29.724999999999994		30.2
	22.475		22.6	30.2625		29.6
	22.78125		22.9	30.531250000000004		28.2
	22.837500000000002		22.4	30.587500000000002		28.7
	22.643749999999997		22.2	30.44375		29.8
	22.606250000000006		22.2	29.449999999999996		29.3
	21.98125		21.8	29.4125		29.4
	21.6		21.3	28.993749999999995		28.8
	21.2625		21.3	28.749999999999996		29
	21.268749999999997		21.3	29.375000000000004		29.2
	21.843750000000004		21.8	29.0375		28.3
	21.84375		21.4	29.343749999999996		29.3
	21.06875		21	28.218749999999996		27.9
	21.0625		20.9	28.39375		28.7
	21.14375		21.2	28.96875		28.8
	21.25625		21	29.318749999999998		28.7
	20.96875		20.9	28.368750000000002		28.6
	20.50625		20.4	28.337499999999995		27.7
	19.96875		19.8	26.968750000000004		27.4
	20.01875		20.1	26.881249999999998		26.7
	19.881249999999998		19.5	27.925000000000008		27.2
	20.025		19.7	27.675		27.4
	19.793750000000003		19.5	27.843750000000007		27.2
	19.81875		19.6	27.0875		26.9
	19.59375		19.5	27.525		26.9
	19.4		19	26.793749999999996		26.7
Sep.	19.35625			26.85625
	19.15625			26.525
	19.28125			26.75
	19.287499999999998			26.737499999999997
	18.15625			25.612500000000004
	17.168750000000003			24.66875
	16.943749999999998			24.2375
	16.712500000000002			23.9875
	16.581250000000004			24.425
	16.19375			23.581249999999997
	15.893750000000002			23.881249999999998
	15.66875			23.41875
	15.999999999999998			24.175
	15.481249999999998			24.349999999999998
	15.6125			24.06875
	16.11875			23.768750000000004
	15.443749999999998			23.306249999999995
	15.162500000000003			23.537499999999998
	15.5			23.33125
	15.63125			22.39375
	15.037500000000001			22.462500000000002
	14.518750000000002			21.4375
	14.431250000000002			21.818749999999998
	14.2125			21.650000000000002
	13.5375			21.70625
	14.11875			22.3875
	14.76875			21.631249999999998
	13.499999999999998			20.637500000000003
	12.981249999999998			19.818749999999998
	12.43125			20.0875
Oct.	12.262500000000001			19.943749999999998
	12.499999999999998			19.843750000000004
	11.4			19.3375
	10.7875			19.2625
	11.11875			19.45
	11.387500000000001			19.449999999999996
	10.73125			18.4875
	10.649999999999997			18.487500000000004
	10.862499999999999			19.3875
	11.206250000000002			18.5375
	10.593749999999998			17.237499999999997
	9.449999999999998			17.599999999999998
	9.6875			17.662499999999998
	9.5625			17.068749999999998
	9.599999999999998			16.075
	9.2125			16.356250000000003
	9.075000000000001			16.656249999999996
	9.337499999999999			16.85
	9.374999999999998			17.25
	9.656249999999998			16.5125
	8.40625			15.943749999999998
	8.275			16.724999999999998
	8.662500000000001			17.5125
	8.85625			16.625
	8.54375			15.84375
	8.818750000000001			16.14375
	7.8374999999999995			14.018749999999999
	6.656249999999999			13.525
	6.968750000000001			14.712499999999999
	7.4624999999999995			14.26875
	7.25			14.31875
Nov.	6.968750000000001			13.5125
	6.949999999999999			13.2625
	6.6625000000000005			13.5625
	6.5249999999999995			13.424999999999999
	5.875			13.0125
	5.5			12.275
	5.81875			13.325000000000001
	6.2625			13.39375
	6.30625			13.325
	5.86875			11.60625
	4.93125			10.537499999999998
	4.4624999999999995			11.681249999999999
	5.200000000000001			12.024999999999999
	5.231249999999999			11.799999999999999
	5.224999999999999			11.76875
	4.4875			11.324999999999998
	4.70625			10.106250000000001
	3.1250000000000004			9.88125
	3.3312500000000003			10.737499999999999
	4.44375			10.668750000000001
	3.1124999999999994			9.437500000000002
	2.93125			9.425
	3.5437499999999997			9.012500000000001
	2.80625			7.831250000000001
	1.88125			8.512500000000001
	2.3562499999999997			9.1
	2.9			8.931249999999999
	2.8125			7.68125
	1.8437500000000002			7.231250000000001
	1.2875			7.625000000000001
Dec.	1.1374999999999997			7.762499999999999
	1.29375			7.2875000000000005
	0.8312499999999999			5.84375
	0.23750000000000004			5.7
	0.4375			6.8625
	0.7500000000000001			6.91875
	0.43125000000000013			7.181250000000001
	1.2625			7.26875
	1.65			7.26875
	1.1062500000000002			7.25625
	-0.1312500000000001			5.7437499999999995
	-0.5500000000000002			5.33125
	-0.51875			4.9
	-0.5499999999999997			5.2250000000000005
	0.09375000000000006			5.68125
	-0.08125			5.83125
	-0.6533333333333332			5.993333333333333

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

32°C

Highest Temp

15 Jul. 26

-7°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthAugust28.85°C

Coldest MonthJanuary-1.81°C

Wettest MonthJanuary18.42mm

Windiest MonthJanuary28.97km/h

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

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Itoigawa historically?

August is historically Itoigawa's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 37°C on 2015-07-13.

2. What is the coldest month in Itoigawa historically?

January is Itoigawa's coldest month, with average minimum temperatures around -1°C. The all-time record low of -8°C was recorded on 2014-02-12.

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

Itoigawa's average annual rainfall is approximately 2356.4mm, based on records spanning 17 years.

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

Itoigawa historically records approximately 258.2 rainy days per year. December has the highest number of rain days at an average of 26.8 days.

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

The all-time highest temperature recorded in Itoigawa is 37°C on 2015-07-13.

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

The all-time lowest temperature recorded in Itoigawa is -8°C on 2014-02-12.

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

Itoigawa experiences its strongest winds during January. The historic gust record of 54 kph was recorded on 2026-01-11.

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

Usually, Itoigawa's humidity peaks in January at around 83.2% and drops to its lowest in May at approximately 74.1%.

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Itoigawa Historic Weather Records
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Itoigawa Weather Trend Graph

Yearly Summary 2026

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Itoigawa Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Itoigawa Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

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