Iiyama Weather History Nagano, Japan

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
Monthly Climate Data
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Sat 06 Dec, 2025 Weather in Iiyama

Sunrise: 06:45 AM Sunset: 04:30 PM	Moonrise: 05:30 PM Moonset: 08:13 AM	Max: 4.5 °c	Min: -10.7 °c	Avg: -3.9 °c	Precip: 0.00 mm	Max Wind: 4.7 kph

	Sat 06 0:00 am	Sat 06 3:00 am	Sat 06 6:00 am	Sat 06 9:00 am	Sat 06 12:00 pm	Sat 06 3:00 pm	Sat 06 6:00 pm	Sat 06 9:00 pm
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Temp	-7.4°c	-9.7°c	-8.9°c	-0.2°c	3.7°c	4.0°c	-4.2°c	-7.2°c
Wind	2.2 kmph	2.5 kmph	1.8 kmph	4.3 kmph	4.0 kmph	2.2 kmph	0.7 kmph	2.2 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	27%	13%	6%	0%	0%	3%	8%	0%
Humidity	94%	91%	89%	76%	72%	78%	81%	83%
Pressure	1026 mb	1027 mb	1028 mb	1027 mb	1023 mb	1023 mb	1025 mb	1025 mb

Iiyama Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	2°C / 36°F	-6°C / 21°F	-2°C / 28°F	82 hours	235.42 mm / 9.27 In	22 days	1018 mb / 31 In
February	4°C / 39°F	-6°C / 22°F	-1°C / 30°F	96 hours	170.63 mm / 6.72 In	18 days	1019 mb / 31 In
March	9°C / 47°F	-2°C / 28°F	3°C / 37°F	152 hours	165.16 mm / 6.50 In	15 days	1017 mb / 31 In
April	15°C / 59°F	3°C / 38°F	9°C / 48°F	186 hours	137.29 mm / 5.40 In	10 days	1015 mb / 30 In
May	21°C / 70°F	8°C / 47°F	15°C / 58°F	203 hours	157.09 mm / 6.18 In	9 days	1012 mb / 30 In
June	25°C / 76°F	13°C / 55°F	19°C / 65°F	161 hours	185.82 mm / 7.32 In	13 days	1010 mb / 30 In
July	28°C / 83°F	18°C / 64°F	23°C / 73°F	122 hours	294.18 mm / 11.58 In	18 days	1010 mb / 30 In
August	30°C / 85°F	18°C / 65°F	23°C / 74°F	147 hours	227.03 mm / 8.94 In	17 days	1010 mb / 30 In
September	25°C / 77°F	14°C / 57°F	19°C / 66°F	147 hours	222.40 mm / 8.76 In	12 days	1014 mb / 30 In
October	19°C / 65°F	8°C / 46°F	12°C / 54°F	168 hours	191.98 mm / 7.56 In	10 days	1018 mb / 31 In
November	13°C / 55°F	2°C / 36°F	7°C / 44°F	163 hours	164.52 mm / 6.48 In	13 days	1019 mb / 31 In
December	5°C / 42°F	-3°C / 27°F	1°C / 34°F	106 hours	244.55 mm / 9.63 In	19 days	1018 mb / 31 In

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