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

Niihama Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	1.1312499999999999	-0.1		6.874999999999999	5.4
	2.2187500000000004	-0.2		8.362499999999999	1.8
	2.1437500000000003	-0.9		7.9937499999999995	4.2
	1.975	-1.3		7.906250000000001	7.5
	2.1500000000000004	3.9		7.7250000000000005	8.6
	2.7562499999999996	1.8		7.562499999999999	5.4
	1.7	2.3		7.018749999999998	8.5
	1.96875	-0.1		7.44375	3.9
	1.5500000000000003	-1.9		6.90625	6.2
	1.15625	2		6.3812500000000005	11.1
	0.90625	-1.3		6.862500000000001	6.2
	1.16875	-3.5		6.4	5.9
	1.1687499999999997	3		6.65625	9.6
	1.24375	1.2		7.3125	7.3
Jan.	1.4250000000000003	3.5		7.1375	11.4
	1.4749999999999999	6.9		7.09375	12.3
	1.40625	6.3		7.18125	11.8
	1.3375000000000001	4.9		7.59375	10.5
	1.7125	4.3		7.3125	10.1
	2.1937500000000005	0.3		8.287500000000001	8.7
	1.975	-1.1		8.024999999999999	5
	2.225	-1.6		8.1875	1.4
	1.65625	-0.9		7.01875	4.6
	0.6874999999999999	0.3		6.093750000000001	5.3
	-5.551115123125783e-17	-0.5		6.51875	3.9
	0.36874999999999997	-2.6		6.425	5
	1.01875	0.9		7.4312499999999995	7.9
	1.23125	1		7.4125	6.1
	1.2437500000000004	0.8		6.80625	5.6
	1.2875000000000003	-0.4		7.0375000000000005	4.5
	1.1562499999999998	0.5		6.875	5.3
	1.4374999999999998	1.3		8.0875	6.2
	1.8062500000000004	1.1		7.83125	7.1
	1.4750000000000003	0		8.2375	5.1
	1.4375000000000002	0.2		7.69375	9.3
	1.0625	4.5		6.675000000000001	12.2
	1.4374999999999998	6.5		6.55	10.8
	0.98125	0.4		7.206249999999999	8
	0.21250000000000002	-2.5		6.637499999999999	0.1
	0.5874999999999999	-3.5		6.749999999999999	3.3
	1.9250000000000003	-0.6		7.368749999999999	8.4
	1.1874999999999998	5.2		7.243749999999999	8.1
	1.1875	3.2		8.21875	10
	2.3312500000000003	2.9		8.043750000000001	11.6
	2.30625	4.6		8.575	11.5
Feb.	2.8499999999999996	8.3		8.40625	13.6
	1.4250000000000003	5		8.00625	11.4
	1.1625	2.4		7.6187499999999995	7.3
	0.95	3.1		7.29375	9.4
	1.6062500000000002	0		7.95	6
	2.3687499999999995	4.3		9.25	10.2
	2.125	4.3		8.712499999999999	11.4
	2.11875	7		9.28125	13.7
	3.1187499999999995	6.6		9.206250000000002	12.8
	2.431249999999999	7.8		9.55625	13
	2.9875000000000003	10		10.106250000000001	11.7
	3.5500000000000003	9.4		9.74375	12.3
	3.24375	10.2		10.200000000000001	12.6
	3.374999999999999	5.9		11.2125	11
	4.98125	3.9		11.2625	11.8
	3.4437499999999996	8		10.34375	12.1
	2.5374999999999996	6.2		9.312499999999998	12.2
	3.1125	3.7		10.8	8.9
	4.56875	2.6		11.96875	9.2
	4.50625	5.5		10.30625	12
	3.675	2.8		9.7125	7.7
	4.2562500000000005	2		10.6875	7.2
	3.75	2.7		10.50625	8.2
	3.14375	1.3		10	6.2
	3.4125	0		10.812499999999998	7.5
	4.0375	3.5		12.331250000000002	8.5
	5.18125	3.8		12.23125	6.4
	4.343749999999999	3.7		11.74375	8.6
Mar.	4.8500000000000005	3.6		12.206250000000002	9.9
	4.3062499999999995	4.8		12.624999999999998	10.1
	4.10625	5.8		12.193749999999998	10.8
	5.074999999999999	7.4		13.350000000000001	10.7
	6.4750000000000005	7.1		13.043750000000001	11.8
	6.224999999999999	5		13.925	11.7
	5.606249999999999	4.8		12.81875	10.9
	4.475	6.6		12.35	12.6
	5.04375	8.1		13.1	13.2
	5.9875	5.5		12.9375	12.2
	5.724999999999999	9.5		12.381250000000001	11.4
	5.93125	9		12.63125	13.5
	5.6875	7.5		13.475000000000003	14.7
	6.675	9.2		14.362500000000002	15.9
	6.9	9.2		13.799999999999999	15.5
	6.59375	10.1		14.66875	16.4
	6.793749999999999	10.3		14.456249999999997	17.7
	7.450000000000001	10.5		14.956249999999999	11.7
	7.79375	10.5		14.625000000000002	14.6
	7.075	10		14.912499999999998	15.3
	7.150000000000001	13.4		15.69375	15.4
	8.143749999999999	12.6		15.518749999999999	15.7
	8.774999999999999	11.5		15.575	16.8
	7.512499999999999	5.8		14.80625	13.1
	7.875000000000001	7.2		15.568749999999998	11.6
	8.13125	9.1		15.743750000000002	14.3
	8.25	14		15.593749999999996	17.1
	8.475000000000001	12.6		15.943750000000001	18.3
	8.65	13.2		15.36875	16.6
	8.3125	14.2		15.406249999999998	16.3
	8.512500000000001	13.5		15.681249999999999	17.7
Apr.	8.487500000000002	15		15.50625	15.6
	8.71875	12		16.875	17.1
	9.393749999999999	11.6		16.975	16.5
	9.706249999999999	14.2		17.73125	17
	10.256249999999998	14.3		17.14375	17.8
	9.91875	14.5		17.512500000000003	18.5
	11.025	12.6		18.1125	17.4
	10.85	11.5		17.512500000000003	16.6
	10.424999999999999	11.7		17.325000000000003	13.3
	10.5875	13.2		17.012500000000003	14.6
	10.549999999999999	12.3		17.906249999999996	15.6
	10.19375	14.3		18.2125	17.1
	10.818749999999998	14.2		18.26875	19.5
	10.375000000000002	13.6		17.35625	18.4
	10.831249999999999	14.3		18.037499999999998	16.9
	11.231250000000001	12.6		18.2125	15.4
	11.687499999999998	12.4		18.85	15.9
	11.268749999999999	12.3		18.95625	19
	11.237499999999999	13.9		18.925	16.2
	11.9125	13.8		19.431250000000002	16.1
	12.468750000000002	11.6		19.88125	16.5
	12.2875	12.6		20.38125	17.2
	13.0375	12.2		19.06875	19.2
	12.125000000000002	13		20.01875	19.5
	12.4375	13.1		19.162499999999998	18.6
	12.7875	12.3		19.63125	16.4
	13.474999999999996	13.3		20.581249999999997	19
	12.981250000000003	13.1		19.8625	19.3
	13.156250000000002	14		20.037499999999994	19.8
	13.200000000000001	13.2		20.81875	20.1
May	13.331249999999999	14.5		20.86875	18.9
	14.093749999999998	14.7		20.9875	20.2
	14.1125	15.2		22.000000000000004	21.4
	14.4	15.9		22.1875	22.4
	14.387500000000001	15.4		21.599999999999994	21.8
	14.512500000000001	16.5		21.575	20.1
	14.71875	18.4		22.09375	20.3
	14.424999999999999	16.6		22.3125	20.9
	15.018749999999999	17.8		21.600000000000005	19.4
	15.0875	18.4		22.299999999999997	20.5
	15.5875	18.4		23.150000000000002	22.3
	15.23125	17		21.000000000000004	21.9
	14.899999999999997	18.5		21.512500000000003	19.5
	15.618749999999999	19.3		22.45	21.3
	15.818749999999998	17.9		22.59375	23.7
	15.625000000000002	16.7		22.1875	23.2
	15.768750000000002	17.4		22.087500000000002	22.8
	15.793750000000001	17.1		22.51875	22.7
	16.006249999999998	18.8		22.131249999999998	20.6
	15.64375	18.5		22.143749999999997	23.8
	16.04375	18.1		22.89375	21.7
	15.83125	19.6		22.512499999999996	21.2
	16.425	19.6		22.18125	22.5
	16.7625	19.5		22.675	20.6
	17.150000000000006	17.2		22.612499999999997	21.6
	17.081249999999997	17.5		22.937499999999996	21.2
	17.3875	18.1		23.518750000000004	23.3
	17.79375	17.3		22.9875	23.5
	17.631250000000005	17.1		23.487499999999997	23.4
	17.53125	18.3		23.256249999999998	22.4
	17.8875	18		23.306250000000002	22.1
Jun.	18.462500000000002	19.1		23.81875	21.1
	18.468749999999996	19.2		24.08125	22.2
	18.08125	19		24.78125	22.7
	18.93125	20.1		23.512500000000003	24
	18.66875	21		24.60625	24.5
	19	21.4		24.418750000000006	24
	19.1125	20.4		24.099999999999998	25.3
	18.9875	19		24.137500000000003	22.1
	18.999999999999996	18.7		24.7	20.3
	19.61875	19.5		25.693749999999998	21.1
	19.7125	20.7		25.075	22.2
	19.9875	19.1		24.3	22.7
	20.2	20.3		25.431250000000002	23.2
	20.374999999999996	21.5		25.5375	22.7
	20.3875	21		26.112499999999997	24.4
	20.749999999999996	21.2		26.100000000000005	24.3
	21.100000000000005	21.6		26.2	22.9
	21.14375	21.5		26.862499999999997	25.7
	21.20625	20.9		26.46875	24.6
	21.5875	21.6		26.362499999999994	22.9
	21.387500000000003	22		26.59375	24.6
	21.600000000000005	22.1		26.79375	24.6
	21.85625	22.6		27.18125	25.6
	22.075	23.2		27.512499999999996	26.1
	21.925	22.8		26.9625	26.9
	21.912499999999998	21.8		27.724999999999998	27.1
	22.343750000000004	23.1		28.10625	27.2
	22.281249999999996	22.8		27.175	27.6
	22.14375	23.6		27.275	29.1
	22.4125	23.8		26.900000000000002	29.2
Jul.	22.06875	23.4		27.75625	29.9
	22.075	24.3		27.393749999999997	28.3
	22.08125	23.6		27.681250000000002	28.2
	22.312500000000004	23.9		27.6875	29.3
	22.474999999999998	24.3		27.5875	29.2
	22.675	24.1		28.5375	29.3
	22.85625	24.8		28.568749999999998	29.6
	22.999999999999996	24.6		28.812500000000004	29.1
	22.94375	24.3		28.875	29.6
	23.01875	24.4		29.156250000000004	28.9
	23.3375	24.2		29.106250000000003	30.5
	23.28125	24.6		29.325000000000003	29.9
	23.125	25.1		28.73125	30.4
	23.124999999999996	24.7		28.84375	31.2
	23.5625	23.8		29.3875	28.6
	23.893750000000004	24.9		29.68125	31.2
	24.0375	24.3		29.906250000000004	30.7
	24.16875	24.3		30.387500000000006	31.3
	23.981250000000003	24.9		29.775000000000002	30.8
	23.781249999999993	25.2		29.8375	29.8
	24.1	25.1		29.95	28.5
	24.368750000000002	24.4		30.03750000000001	28.3
	24.306249999999995	24.3		29.51875	29.1
	24.037499999999998	24.6		29.406249999999996	29.5
	23.85	24.3		29.9	29
	24.0375	24.8		29.18125	28.9
	24.218750000000004	25.3		29.73125	28.2
	23.9875	23.4		29.4375	28.2
	23.874999999999996	22.5		29.224999999999998	28
	23.81875		24.3	29.69375		27.9
	24.062499999999996		23.8	29.493750000000002		27.2
Aug.	24.16875		23.6	28.843749999999996		27.7
	24.337500000000002		24.8	29.262499999999996		27.7
	23.943749999999998		24.7	29.425		28.5
	23.481250000000003		25	29.175000000000004		27.5
	23.61875		25	29.075000000000003		27.9
	23.418750000000006		24.4	28.856249999999996		26.8
	23.5375		24	29.056250000000002		27.3
	23.8125		23.8	29.299999999999997		29.2
	23.94375		23.7	29.181250000000006		29.1
	23.774999999999995		23.4	28.775000000000002		28.8
	23.674999999999997		23.3	28.712500000000006		28.6
	22.88125		22.6	28.200000000000003		28.1
	22.85		22.7	28.5875		28.3
	23.09375		23	28.468749999999996		28.2
	22.956249999999997		22.6	28.525		28.3
	22.8625		22.9	28		28
	22.949999999999996		22.7	27.693750000000005		27.7
	22.4		22	26.925000000000008		27
	22.04375		21.9	27.28125		27.5
	22.45		22.5	27.450000000000003		27.4
	22.374999999999996		22.2	26.987499999999997		26.8
	22.299999999999997		22.2	27.218749999999993		27.1
	22.018749999999997		22	27.3625		27.6
	22.15625		22	27.418749999999996		27.4
	21.937499999999996		21.6	27.18125		27.1
	21.54375		21.2	27.0875		26.8
	21.556250000000002		21.3	26.893749999999997		26.9
	21.625		21.5	26.900000000000002		27
	21.73125		21.4	26.925		26.6
	21.4375			26.73125
	21.1875			26.400000000000002
Sep.	21.131249999999998			26.1625
	21.15625			25.831250000000004
	21.174999999999997			26.04375
	21.15625			26.175000000000004
	20.431250000000002			25.668749999999996
	19.51875			24.45
	19.237499999999997			24.749999999999996
	19.5375			24.750000000000004
	18.825			24.39375
	18.7125			23.725
	18.568749999999998			24.156250000000004
	18.643749999999997			24.15625
	19.1125			24.06875
	18.837500000000002			24.331250000000004
	18.6125			24.23125
	18.53125			23.775
	18.1125			23.412499999999994
	18.175000000000004			23.950000000000003
	17.9875			23.775
	17.349999999999998			22.781249999999996
	17.512500000000003			22.168750000000003
	17.06875			22.54375
	16.7			22.206249999999997
	16.862499999999997			21.974999999999998
	16.825			21.95
	16.693749999999998			22.624999999999996
	16.750000000000004			21.900000000000006
	16.4375			21.400000000000002
	15.706250000000002			21.156250000000004
	15.61875			21.162499999999998
Oct.	15.575			20.743750000000002
	14.881250000000001			20.64375
	14.356250000000003			20.012499999999996
	14.7125			20.08125
	14.762500000000001			20.0875
	14.762500000000001			19.95625
	14.287500000000001			19.50625
	14.100000000000001			19.98125
	14.437500000000004			19.54375
	13.693750000000001			19.01875
	12.80625			17.93125
	12.05			19.131249999999998
	12.231250000000001			18.556250000000002
	12.199999999999998			17.743750000000002
	12.312500000000002			17.8125
	11.9625			17.60625
	11.83125			17.224999999999998
	11.7125			17.88125
	12.125			17.56875
	11.956249999999999			17.49375
	10.618750000000002			16.887500000000003
	10.812499999999996			17.068749999999998
	11.943750000000003			17.999999999999996
	11.581249999999999			17.424999999999997
	12.2125			17.475
	10.981250000000003			16.4125
	10.337499999999999			15.606250000000001
	10.081249999999999			15.337500000000002
	10.38125			15.612499999999999
	9.73125			15.5625
	9.95			15.5625
Nov.	9.293750000000001			15.037499999999998
	8.70625			15.387500000000001
	9.4625			15.299999999999999
	9.312500000000002			14.774999999999999
	8.325			14.287499999999998
	8.425			14.59375
	8.16875			14.4875
	8.625			14.125
	8.762500000000001			14.706249999999995
	7.70625			13.56875
	7.8			12.91875
	7.543749999999999			13.243750000000002
	7.36875			13.45
	7.4125000000000005			12.831249999999997
	7.156250000000001			12.88125
	6.9125			13.28125
	6.556250000000001			12.393750000000002
	5.2749999999999995			11.168750000000001
	5.5875			11.718749999999998
	5.656250000000002			11.287500000000001
	5.05			10.74375
	5.668749999999999			10.937500000000002
	4.862500000000001			10.706249999999999
	4.50625			10.074999999999998
	4.3374999999999995			9.868750000000002
	4.8812500000000005			11.325
	5.2437499999999995			10.987499999999999
	4.6312500000000005			9.6875
	4.612499999999999			9.775
	4.25			9.85
Dec.	3.7625			9.825
	3.2999999999999994			9.60625
	2.6437500000000003			6.8875
	2.3937499999999994			7.356249999999999
	2.875			8.65625
	3.2750000000000004			8.893749999999999
	3.34375			8.862499999999999
	3.41875			9.174999999999999
	3.8375000000000004			9.31875
	2.8687499999999995			9.181250000000002
	2.14375			7.387500000000001
	2.2125000000000004			7.050000000000001
	2.45			7.5562499999999995
	2.04375			8.4375
	2.6875000000000004			7.9125
	2.725			8.525
	1.88			8.339999999999998

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

31°C

Highest Temp

1 Aug. 26

-3°C

Lowest Temp

12 Jan. 26

Seasonal Breakdown

Hottest MonthAugust29.13°C

Coldest MonthJanuary0.89°C

Wettest MonthJune13.7mm

Windiest MonthJanuary24.05km/h

Niihama 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 Niihama historically?

August is historically Niihama's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 34°C on 2018-07-24.

2. What is the coldest month in Niihama historically?

January is Niihama's coldest month, with average minimum temperatures around 1°C. The all-time record low of -6°C was recorded on 2023-01-25.

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

Niihama's average annual rainfall is approximately 1992.4mm, based on records spanning 17 years.

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

Niihama historically records approximately 215.2 rainy days per year. June has the highest number of rain days at an average of 21.5 days.

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

The all-time highest temperature recorded in Niihama is 34°C on 2018-07-24.

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

The all-time lowest temperature recorded in Niihama is -6°C on 2023-01-25.

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

Niihama experiences its strongest winds during January. The historic gust record of 50.9 kph was recorded on 2012-04-03.

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

Usually, Niihama's humidity peaks in July at around 82.8% and drops to its lowest in January at approximately 70.7%.

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Niihama Historic Weather Records
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Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

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Analyse hottest, coldest, windiest & wettest days