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Monthly climate in Katashina, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Katashina features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 22 °C (72 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 1856 mm (73.1 inches) and receives 222 rainy days on the 1 mm (0.04 inches) threshold annually. Katashina enjoys an average of 2947 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 37 minutes per day.

Monthly average temperatures in Katashina, Japan

The warmest months in Katashina are July, August and September, with daily mean temperatures ranging from 18 to 22 °C (64 - 72 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 0 °C (27 - 32 °F) throughout the day. On average each year, Katashina experiences 32 days above 25 °C (77.0 °F) and 117 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Katashina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(46°F)		13°C
(56°F)		18°C
(65°F)		23°C
(75°F)		27°C
(81°F)		26°C
(79°F)		30°C
(86°F)		31°C
(88°F)		28°C
(83°F)		24°C
(76°F)		18°C
(64°F)		16°C
(61°F)
Mean maximum6°C
(43°F)		9°C
(49°F)		15°C
(59°F)		20°C
(67°F)		25°C
(78°F)		23°C
(74°F)		28°C
(83°F)		29°C
(85°F)		26°C
(79°F)		23°C
(74°F)		16°C
(61°F)		11°C
(52°F)
Average high1°C
(33°F)		2°C
(35°F)		7°C
(45°F)		12°C
(53°F)		18°C
(64°F)		20°C
(69°F)		24°C
(75°F)		26°C
(79°F)		21°C
(70°F)		16°C
(60°F)		10°C
(51°F)		4°C
(39°F)
Daily mean-3°C
(27°F)		-2°C
(29°F)		3°C
(37°F)		7°C
(45°F)		13°C
(56°F)		17°C
(62°F)		21°C
(70°F)		22°C
(72°F)		18°C
(64°F)		12°C
(54°F)		6°C
(43°F)		-0°C
(32°F)
Average low-6°C
(22°F)		-6°C
(22°F)		-1°C
(30°F)		3°C
(37°F)		9°C
(48°F)		13°C
(56°F)		18°C
(64°F)		19°C
(67°F)		15°C
(59°F)		9°C
(48°F)		2°C
(36°F)		-3°C
(26°F)
Mean minimum-11°C
(13°F)		-12°C
(10°F)		-7°C
(19°F)		-4°C
(25°F)		1°C
(35°F)		8°C
(47°F)		14°C
(58°F)		14°C
(58°F)		9°C
(49°F)		2°C
(37°F)		-5°C
(24°F)		-9°C
(16°F)
Minimum-14°C
(8°F)		-16°C
(3°F)		-11°C
(13°F)		-6°C
(21°F)		0°C
(33°F)		6°C
(43°F)		13°C
(56°F)		9°C
(48°F)		5°C
(42°F)		-0°C
(31°F)		-6°C
(22°F)		-14°C
(8°F)

Compare climate in Katashina with other places

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

Monthly average precipitation in Katashina, Japan

Katashina usually has the most precipitation in July, August and October, with an average of 22 rainy days and 250 mm (9.8 inches) of precipitation per month. The driest months in Katashina are January, February and November. On average, 75 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Katashina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)80 (3.2)78 (3.1)136 (5.4)134 (5.3)146 (5.7)183 (7.2)294 (11.6)211 (8.3)189 (7.5)246 (9.7)65 (2.6)93 (3.7)
Average precipitation days (≥ 1 mm)181817151619262421181218

Monthly sunshine hours in Katashina, Japan

The sunniest months in Katashina are April, May and August, when the sun shines an average of 9 hours 13 minutes a day. Least sunny months in Katashina: January, October and December receive an average of 6 hours 38 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Katashina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours183230265278288274250280234213226221
Mean daily daylight hours9h 56m10h 49m11h 57m13h 8m14h 7m14h 37m14h 22m13h 30m12h 23m11h 13m10h 11m9h 40m

Solar UV radiation in Katashina, Japan

Katashina 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 Katashina UV Index data.

Average daily maximum UV levels by month for Katashina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)469101111111110753