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

Iwakuni Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	2.19375	1.7		8.381250000000001	7.2
	2.26875	0.6		9.712500000000002	3.9
	2.7624999999999997	-0.7		9.4375	6.6
	2.43125	0.3		9.775	10.5
	2.5875	3.8		9.081249999999999	11.4
	3.25	2.2		8.8875	8.3
	2.7312499999999997	2.9		8.443750000000001	11.2
	2.9125	1		8.656249999999998	5.5
	2.2937499999999993	0.8		8.200000000000001	9.3
	2.1062499999999997	3.6		7.893750000000001	13.7
	1.4312500000000004	0.5		8.18125	6
	2.10625	-0.7		7.83125	7.9
	2.475	5.2		7.9	12.5
	2.3062500000000004	2.7		8.64375	10
Jan.	2.3499999999999996	4.1		8.581249999999999	12.9
	1.9499999999999997	7.1		8.78125	13.6
	2.34375	6		8.3	13.2
	2.2875	5.4		8.9	11
	2.5437499999999997	4.8		8.650000000000002	11.3
	3.243750000000001	1.5		9.293750000000001	11
	2.70625	-0.1		9.19375	5.9
	2.95	-1.1		8.893749999999999	2.6
	2.5812499999999994	0		8.16875	6.7
	1.33125	-0.3		7.21875	7.2
	1.1875	-0.6		7.387500000000001	5.8
	1.2750000000000001	-0.3		7.3687499999999995	6.6
	1.9312500000000001	0.6		8.5	8.7
	2.23125	0.1		8.69375	8.7
	2.16875	0		7.8687499999999995	7.3
	2.01875	-0.9		8.58125	6.6
	1.7187500000000002	-0.8		8.50625	7.6
	2.6374999999999997	0.8		9.025000000000002	8.7
	2.5875	0.1		9.218750000000002	8.4
	2.24375	-0.5		9.087500000000002	7.9
	2.0749999999999997	1.7		8.46875	12.3
	1.79375	5		7.49375	13.5
	2.0749999999999997	7		7.60625	13.5
	1.78125	1.8		8.05	9.2
	1.075	-2.2		7.799999999999999	1.8
	1.7625	-5		7.868749999999999	5.9
	2.40625	-0.5		8.412500000000001	9.3
	1.7	4.2		8.475	10.6
	2.3062500000000004	2.9		8.806249999999999	12.2
	2.91875	2.2		9.324999999999998	13.5
	2.8625000000000007	4.5		10.037500000000001	13.5
Feb.	3.5124999999999997	9		10.243749999999999	14.8
	2.20625	6.7		9.156249999999998	12.9
	1.7499999999999998	3.8		8.393749999999999	8.4
	1.8375000000000004	2.8		8.475	11.7
	2.83125	1.9		8.86875	7.7
	2.80625	4.7		10.4	13.5
	3.0125	4		9.781249999999998	12.8
	3.325	7.4		10.3375	15.4
	3.7312499999999997	5.5		11.031250000000002	13.8
	3.2937499999999997	5.9		10.9125	13.4
	3.50625	9.9		11.637500000000001	11.7
	3.8937499999999994	8.4		11.16875	13.5
	4.0875	11		11.543750000000001	13.6
	3.9437500000000005	6.5		12.143749999999999	12.9
	5.356249999999999	4.9		12.062499999999998	11.8
	4.38125	8		11.343750000000002	11.4
	3.412500000000001	8.3		10.575	13.6
	3.9125	5.1		11.437499999999996	11.6
	5.325	3.5		12.61875	10.3
	5.081250000000002	6.1		11.225	10.4
	4.6125	2.6		10.825	10.1
	4.731249999999999	2.3		11.69375	9.1
	4.525	2.2		11.65	10.4
	4.074999999999999	3.1		11.35	10.2
	4.15	2.5		12.51875	9.3
	4.731249999999999	3.9		13.44375	11.1
	5.65625	3.5		13.24375	9.1
	4.99375	3.8		13.11875	13
Mar.	5.18125	3.9		13.331250000000002	11.3
	5.1125	5.2		13.787500000000001	11.7
	4.8999999999999995	6		13.037500000000001	11.9
	5.9624999999999995	7		13.456249999999999	10.3
	7.2375	6.8		14.268750000000002	14.4
	6.5	4.7		14.462499999999999	13.3
	6.5249999999999995	5.4		13.29375	12.5
	5.1000000000000005	6.2		13.675	13.8
	5.84375	8.2		13.749999999999996	15.2
	6.381250000000001	6.4		13.974999999999998	13.4
	6.718749999999999	9.3		13.268749999999999	11.3
	6.30625	8.9		14.100000000000003	15.8
	6.487500000000001	7.3		14.41875	15.6
	7.399999999999999	8.8		15.31875	17.7
	7.7	8.5		14.99375	17
	7.375	9.7		15.75625	17
	7.85	12.2		15.65625	16.7
	7.81875	9.9		15.956249999999997	11.9
	7.749999999999999	7.9		15.49375	16.5
	7.675	7.4		16.16875	15.8
	7.60625	11.7		16.4875	17.3
	8.50625	10.5		16.35625	18.1
	9.325	8.9		16.24375	17.6
	7.500000000000001	5.5		15.893749999999997	15.2
	8.075000000000001	4.3		16.4625	13.2
	8.1875	7.3		17.006249999999998	14.1
	8.275	12.4		16.618750000000002	18.7
	9.137500000000001	10.5		16.800000000000004	19.8
	8.9	11.9		16.49375	17.9
	8.625	13.1		16.093750000000004	16.2
	9.118750000000002	13.1		16.125	16.7
Apr.	8.956249999999997	13.7		17.193749999999998	15.2
	9.043750000000001	11		18.037499999999998	18.1
	10.381249999999998	10.9		18.3	16.9
	10.13125	13		18.662500000000005	18.6
	10.281250000000002	14.3		18.20625	18.2
	10.031249999999998	14.1		18.2625	19.6
	11.06875	11		19.075	18.4
	11.374999999999998	9.4		18.4375	16.8
	11.11875	11.6		18.40625	14.2
	11.287499999999998	11		18.156249999999996	17.5
	10.59375	9.2		19.093749999999996	17.1
	10.293750000000001	12		18.950000000000003	16.4
	10.799999999999999	11.8		19.08125	20
	10.8875	12.2		18.1	21.2
	11.375	13.5		18.443749999999998	17.3
	11.725	11.7		19.343749999999996	13.3
	11.974999999999998	11.3		19.9	15.6
	11.343749999999998	10.8		19.8875	19.9
	11.468749999999998	13.5		19.7875	17.8
	11.9625	11.4		20.237500000000004	17.1
	12.5875	9.2		21.3125	17.9
	12.931249999999999	11.1		20.849999999999994	17.8
	13.112500000000002	11.8		20.093749999999996	20.7
	12.64375	10.3		21.200000000000003	18.9
	12.46875	9.6		19.924999999999997	18.7
	12.637500000000001	10.1		20.18125	18.9
	13.318750000000001	11.7		21.087500000000002	20.1
	13.193750000000003	11.8		20.656250000000004	19.9
	13.21875	13.6		20.993749999999995	20.6
	13.681250000000002	13.7		21.987499999999997	21.6
May	13.575000000000003	13.2		22.124999999999996	21.5
	14.481250000000001	14.1		22.09375	22.1
	14.237499999999997	13.9		22.725	23.3
	14.437499999999998	14.7		22.49375	23.6
	14.4	15.4		22.262499999999996	23.2
	14.875000000000002	15.9		22.20625	19.7
	14.918750000000001	18		23.0125	20
	14.637500000000001	15.3		23.55625	22.6
	14.806250000000002	15.5		22.66875	19.5
	15.250000000000002	17.1		23.03125	21.1
	15.431249999999999	17.7		23.84375	23.1
	15.831249999999999	16.2		21.79375	23.1
	15.48125	18.4		22.86875	19.8
	15.987500000000002	18.7		23.375000000000004	20.2
	16.000000000000004	15.7		23.58125	25.3
	15.587499999999999	15.3		22.937499999999996	24.1
	15.79375	17		23.48125	25.5
	15.69375	16.9		23.05	23.5
	16.28125	17.7		23.318749999999998	19.7
	15.975	17.8		23.90625	25.5
	15.8875	17.4		24.112499999999997	20.6
	16.14375	18.1		22.793750000000003	22.8
	16.39375	18.5		23.34375	23.7
	17.0875	18.6		24.11875	19.5
	17.20625	17		23.943749999999998	19.8
	17.31875	15.9		24.325	22
	18.01875	14.8		24.19375	23.6
	18.206249999999997	15.4		23.86875	25.1
	17.95625	14.9		24.225	24.1
	17.799999999999994	15.7		24.3	23.9
	18.249999999999996	17.6		24.281250000000004	22.5
Jun.	18.65625	17.4		24.868750000000002	22.7
	18.325000000000003	17.8		25.14375	22.8
	18.112499999999997	18.4		25.812500000000004	23.9
	18.837500000000002	18.6		24.3625	25.3
	18.5	20.8		25.374999999999996	23.8
	18.950000000000003	20.9		25.349999999999998	22.7
	19.150000000000002	17.9		24.687499999999996	25.5
	19.056250000000002	18.6		25.35625	21.5
	19.125	18		25.443749999999994	20.5
	19.512500000000003	18.2		26.1625	20
	19.812500000000004	19.3		25.725	21
	19.79375	18.2		24.99375	20.7
	20.4375	18.1		25.718750000000007	24.4
	20.1	19.8		26.19375	24.9
	20.69375	18.2		26.712500000000002	25.9
	20.6	19.4		26.681250000000002	24.8
	21.156250000000004	20.5		26.981249999999996	22.9
	21.25	20.4		27.35	26.9
	21.268749999999997	19.2		26.637500000000006	25.3
	21.625000000000004	20.9		26.656250000000004	22.2
	21.725000000000005	21.8		27.47500000000001	24.3
	21.506249999999998	21.9		27.20625	26.1
	21.900000000000002	21.7		27.268750000000004	26.5
	22.05625	23.1		27.78125	27.7
	22.249999999999996	21.7		28.00625	27.3
	22.193749999999998	21		28.781249999999996	27.6
	22.525	21.8		28.73125	28.3
	22.3625	22.6		28.29375	29.5
	22.38125	23.3		27.743750000000002	29.8
	22.24375	23.1		27.281249999999996	30.6
Jul.	22.275	22.8		28.61875	30
	22.331250000000004	23.9		28.912499999999998	31.8
	22.224999999999998	22.3		28.724999999999998	29.1
	22.725000000000005	23.8		28.443749999999998	30.4
	22.7875	23.8		28.712500000000002	30.2
	23.21875	24.3		29.43125	30.1
	23.099999999999994	24.1		29.6375	30.3
	23.099999999999998	24.2		29.81875	30.8
	23.225000000000005	23.9		29.89375	31.8
	23.53125	23.4		30.218750000000004	31.3
	23.662499999999998	23.8		30.375	31.5
	23.65	23.9		30.5375	30.7
	23.449999999999996	24.4		30.45625	31.7
	23.612499999999997	23		30.39375	33.5
	23.912499999999998	22.2		30.56875	29
	24.062499999999996	23.9		31.11875	32.4
	24.056250000000002	22.2		31.156250000000004	30.9
	24.23125	23.2		31.5125	32.7
	23.962500000000006	24.3		31.318749999999998	32.7
	24.256249999999998	25.1		31.481249999999996	31.4
	24.174999999999997	25.1		31.656250000000007	30.1
	24.43125	24.4		31.593750000000004	30.3
	24.549999999999997	24.1		31.45	30.5
	24.4625	24.6		31.187499999999996	30.4
	24.318749999999998	24.5		31.493750000000002	30.4
	24.312499999999996	23.9		30.31875	30.1
	24.468749999999996	24.3		30.89375	29.6
	24.14375	20.7		30.643749999999997	29.5
	24.00625	19.7		30.28125	29.6
	23.99375	22.6		30.937499999999996	28.5
	24.4		22.8	30.887500000000003		28.9
Aug.	24.6375		22.9	30.450000000000003		28.9
	24.174999999999997		23.2	30.5		25.9
	23.75		23.2	30.131249999999998		28.7
	23.593750000000004		22.8	30.2875		29.7
	23.618750000000002		23.8	30.3125		29.6
	23.99375		24.6	29.974999999999998		27.8
	24.112499999999997		24.5	30.38125		28.1
	24.437499999999996		23.4	30.562499999999996		25.9
	24.23125		23.9	30.43125		30.2
	24.13125		23.9	29.83125		29.8
	23.85		23.6	29.8125		29.6
	23.293750000000003		22.9	29.768749999999997		29.6
	22.868750000000002		22.9	30.106250000000003		29.8
	23.325000000000003		23.2	29.706249999999997		29.4
	23.18125		23	29.2875		29.2
	23.118750000000002		23.1	29.143749999999997		29.2
	22.8625		22.9	28.86875		29
	22.756250000000005		22.4	27.800000000000004		27.8
	22.3375		22.1	28.462500000000002		28.6
	22.1875		22.3	28.825000000000003		28.5
	22.6375		22.6	27.94375		27.9
	22.33125		22.3	28.343750000000004		28.3
	22.19375		22.2	28.406250000000004		28.6
	22.068749999999998		22	28.4625		28.3
	22.106249999999996		22	28.23125		28.1
	21.462499999999995		21.2	28.2625		28.1
	21.4375		21.3	28.36875		28.4
	21.587500000000002		21.4	28.337500000000002		28.2
	21.76875		21.7	28.06875		27.5
	21.84375		21.5	27.974999999999994		28
	21.46875			27.981249999999996
Sep.	21.4625			27.54375
	21.08125			27.3
	21.76875			27.44375
	21.43125			27.71875
	20.6125			26.875000000000004
	19.85			25.375
	19.63125			25.793749999999996
	19.700000000000003			25.95625
	19.162499999999998			25.099999999999998
	18.7625			25.075
	18.743750000000006			25.393749999999997
	19.150000000000002			25.787499999999998
	19.343749999999996			25.581249999999997
	19.0125			25.849999999999998
	19.20625			25.349999999999998
	18.5125			25.1125
	18.062499999999996			25.168750000000003
	18.08125			25.106250000000003
	17.887500000000003			24.63125
	17.8			24.2
	17.612500000000004			23.331249999999997
	17.049999999999997			23.499999999999996
	17.29375			23.925
	17.412499999999998			23.249999999999996
	17.01875			23.2
	16.99375			23.749999999999996
	16.762499999999996			23.450000000000003
	16.35			22.79375
	15.8375			22.549999999999997
	15.50625			22.7125
Oct.	15.956249999999997			21.91875
	15.187500000000002			22.11875
	15.08125			21.424999999999997
	15.10625			21.4875
	15.1625			21.59375
	14.86875			21.625000000000004
	14.637499999999998			20.900000000000002
	14.593750000000002			21.000000000000004
	14.599999999999998			20.624999999999996
	14.18125			20.08125
	12.89375			19.5
	12.437500000000002			20.19375
	12.518749999999997			19.73125
	12.5375			19.41875
	12.874999999999998			19.49375
	12.38125			18.843750000000004
	12.14375			19.28125
	12.087500000000002			19.05
	12.212499999999999			18.84375
	12.00625			18.918749999999996
	11.425			18.887500000000003
	11.425			19.187500000000004
	11.737499999999999			19.518750000000004
	11.931250000000002			18.662499999999998
	12.406250000000002			18.5625
	11.45			17.24375
	10.51875			16.86875
	10.44375			16.6
	11.0125			16.76875
	10.549999999999999			16.875
	10.09375			17.056250000000002
Nov.	9.781249999999998			16.1375
	9.256250000000001			16.6
	9.643749999999999			16.068749999999998
	10.131250000000001			15.9375
	9.16875			15.412500000000001
	8.96875			16.031249999999996
	8.4875			15.606249999999998
	9.243749999999999			15.3125
	9.28125			15.781249999999998
	8.4375			14.75625
	8.15			14.174999999999999
	7.74375			14.3375
	8.00625			14.812500000000004
	8			13.85
	7.693749999999999			14.13125
	7.612499999999999			14.23125
	6.868750000000001			13.506250000000001
	5.874999999999999			12.39375
	6.056249999999999			12.43125
	6.26875			12.49375
	5.8125			12.062499999999998
	6.0562499999999995			12.312499999999998
	5.093750000000001			12.012500000000001
	4.9875			11.075
	5.08125			11.3
	5.7625			12.331249999999999
	5.750000000000001			11.7625
	5.2125			10.675
	5.2124999999999995			10.7375
	4.6125			11.200000000000001
Dec.	4.75			11.075000000000003
	4.4			9.774999999999997
	3.306250000000001			8.012500000000001
	3.2874999999999996			8.76875
	3.725			9.78125
	4.2250000000000005			10.174999999999999
	4.074999999999999			9.95
	4.1625			9.9375
	4.70625			10.193750000000001
	3.2249999999999996			10.125
	2.29375			8.40625
	2.75625			8.2
	2.8375000000000004			8.8
	2.4875			9.4625
	3.2562499999999996			8.825000000000001
	3.13125			9.631250000000001
	2.660000000000001			9.006666666666668

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

34°C

Highest Temp

28 Jul. 26

-5°C

Lowest Temp

9 Feb. 26

Seasonal Breakdown

Hottest MonthAugust30.45°C

Coldest MonthJanuary1.59°C

Wettest MonthJune14.95mm

Windiest MonthJanuary21.76km/h

Iwakuni 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 Iwakuni historically?

August is historically Iwakuni's hottest month, with average maximum temperatures around 30°C. During peak heatwave events, the highest recorded temperatures have reached 36°C on 2018-07-24.

2. What is the coldest month in Iwakuni historically?

January is Iwakuni's coldest month, with average minimum temperatures around 2°C. The all-time record low of -5°C was recorded on 2026-02-09.

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

Iwakuni's average annual rainfall is approximately 1838.1mm, based on records spanning 17 years.

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

Iwakuni historically records approximately 174.2 rainy days per year. June has the highest number of rain days at an average of 18.8 days.

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

The all-time highest temperature recorded in Iwakuni is 36°C on 2018-07-24.

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

The all-time lowest temperature recorded in Iwakuni is -5°C on 2026-02-09.

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

Iwakuni experiences its strongest winds during January. The historic gust record of 50.3 kph was recorded on 2011-07-19.

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

Usually, Iwakuni's humidity peaks in July at around 84.8% and drops to its lowest in January at approximately 72.2%.

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Iwakuni Historic Weather Records
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Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

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