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Monthly climate in Numata, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Numata features a humid continental climate (Dfb). Temperatures typically range between -3 °C (28 °F) and 23 °C (73 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 32 °C (91 °F). The average annual precipitation amounts to about 1746 mm (68.7 inches) and receives 214 rainy days on the 1 mm (0.04 inches) threshold annually. Numata enjoys an average of 2940 hours of sunshine throughout the year, and daylight varies from 9 hours 41 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Numata, Japan

The warmest months in Numata are July, August and September, with daily mean temperatures ranging from 18 to 23 °C (65 - 73 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 1 °C (28 - 33 °F) throughout the day. On average each year, Numata experiences 39 days above 25 °C (77.0 °F) and 109 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Numata. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(46°F)		14°C
(58°F)		20°C
(69°F)		25°C
(78°F)		28°C
(82°F)		27°C
(81°F)		31°C
(88°F)		32°C
(91°F)		29°C
(85°F)		25°C
(77°F)		18°C
(65°F)		16°C
(61°F)
Mean maximum6°C
(43°F)		10°C
(50°F)		16°C
(61°F)		20°C
(69°F)		26°C
(80°F)		24°C
(75°F)		29°C
(84°F)		30°C
(87°F)		27°C
(81°F)		24°C
(75°F)		17°C
(62°F)		11°C
(53°F)
Average high1°C
(34°F)		2°C
(36°F)		7°C
(45°F)		12°C
(55°F)		18°C
(65°F)		21°C
(69°F)		25°C
(77°F)		26°C
(80°F)		22°C
(71°F)		16°C
(61°F)		11°C
(52°F)		4°C
(40°F)
Daily mean-3°C
(28°F)		-2°C
(29°F)		3°C
(38°F)		8°C
(46°F)		14°C
(57°F)		17°C
(63°F)		21°C
(70°F)		23°C
(73°F)		18°C
(65°F)		13°C
(55°F)		6°C
(44°F)		1°C
(33°F)
Average low-6°C
(21°F)		-6°C
(22°F)		-1°C
(30°F)		3°C
(38°F)		9°C
(48°F)		13°C
(56°F)		18°C
(65°F)		19°C
(67°F)		15°C
(59°F)		9°C
(49°F)		2°C
(37°F)		-3°C
(27°F)
Mean minimum-14°C
(8°F)		-12°C
(10°F)		-7°C
(20°F)		-4°C
(25°F)		1°C
(35°F)		9°C
(48°F)		15°C
(59°F)		15°C
(59°F)		9°C
(49°F)		3°C
(38°F)		-4°C
(24°F)		-10°C
(14°F)
Minimum-16°C
(3°F)		-16°C
(3°F)		-9°C
(16°F)		-5°C
(23°F)		0°C
(33°F)		6°C
(43°F)		14°C
(57°F)		9°C
(49°F)		6°C
(42°F)		1°C
(35°F)		-6°C
(21°F)		-15°C
(5°F)

Compare climate in Numata with other places

Compare temperature, precipitation, sunshine, UV index in Numata, Japan with other places around the world.

Monthly average precipitation in Numata, Japan

Numata usually has the most precipitation in July, September and October, with an average of 19 rainy days and 218 mm (8.6 inches) of precipitation per month. The driest months in Numata are January, February and November. On average, 87 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Numata. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)100 (3.9)96 (3.8)136 (5.4)132 (5.2)143 (5.6)154 (6.1)267 (10.5)160 (6.3)161 (6.3)225 (8.9)64 (2.5)107 (4.2)
Average precipitation days (≥ 1 mm)192018151616232019171219

Monthly sunshine hours in Numata, Japan

The sunniest months in Numata are April, May and August, when the sun shines an average of 9 hours 19 minutes a day. Least sunny months in Numata: January, October and December receive an average of 6 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Numata. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours177225259279293276255285238212222214
Mean daily daylight hours9h 57m10h 49m11h 57m13h 7m14h 6m14h 36m14h 21m13h 30m12h 23m11h 13m10h 12m9h 41m

Solar UV radiation in Numata, Japan

Numata experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Numata UV Index data.

Average daily maximum UV levels by month for Numata. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)46991111111110753