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Monthly climate in Owani, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Owani features a humid subtropical climate (Cfa). Temperatures typically range between -3 °C (28 °F) and 23 °C (74 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1591 mm (62.6 inches) and receives 204 rainy days on the 1 mm (0.04 inches) threshold annually. Owani enjoys an average of 2960 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Owani, Japan

The warmest months in Owani are July, August and September, with daily mean temperatures ranging from 19 to 23 °C (66 - 74 °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 - 31 °F) throughout the day. On average each year, Owani experiences 45 days above 25 °C (77.0 °F) and 110 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Owani. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum5°C
(42°F)		8°C
(46°F)		16°C
(62°F)		23°C
(73°F)		28°C
(83°F)		29°C
(85°F)		33°C
(91°F)		35°C
(95°F)		34°C
(93°F)		25°C
(78°F)		19°C
(67°F)		12°C
(55°F)
Mean maximum4°C
(40°F)		7°C
(44°F)		13°C
(56°F)		20°C
(68°F)		26°C
(78°F)		25°C
(77°F)		31°C
(88°F)		33°C
(92°F)		29°C
(85°F)		23°C
(74°F)		18°C
(65°F)		9°C
(49°F)
Average high-0°C
(32°F)		1°C
(34°F)		6°C
(43°F)		12°C
(53°F)		18°C
(65°F)		22°C
(71°F)		26°C
(79°F)		27°C
(80°F)		23°C
(74°F)		17°C
(62°F)		10°C
(50°F)		2°C
(36°F)
Daily mean-3°C
(28°F)		-2°C
(29°F)		2°C
(36°F)		7°C
(45°F)		14°C
(57°F)		18°C
(64°F)		22°C
(72°F)		23°C
(74°F)		19°C
(66°F)		12°C
(54°F)		6°C
(43°F)		-1°C
(31°F)
Average low-6°C
(22°F)		-5°C
(24°F)		-1°C
(30°F)		3°C
(37°F)		9°C
(49°F)		13°C
(56°F)		19°C
(66°F)		20°C
(68°F)		15°C
(59°F)		8°C
(47°F)		3°C
(37°F)		-3°C
(27°F)
Mean minimum-12°C
(11°F)		-10°C
(14°F)		-8°C
(18°F)		-3°C
(27°F)		3°C
(39°F)		8°C
(47°F)		14°C
(58°F)		15°C
(59°F)		8°C
(47°F)		2°C
(36°F)		-5°C
(24°F)		-9°C
(16°F)
Minimum-17°C
(2°F)		-13°C
(9°F)		-11°C
(13°F)		-6°C
(21°F)		2°C
(36°F)		6°C
(43°F)		13°C
(56°F)		13°C
(55°F)		5°C
(42°F)		1°C
(33°F)		-10°C
(15°F)		-10°C
(14°F)

Compare climate in Owani with other places

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

Monthly average precipitation in Owani, Japan

Owani usually has the most precipitation in July, August and October, with an average of 16 rainy days and 170 mm (6.7 inches) of precipitation per month. The driest months in Owani are January, March and May. On average, 102 mm (4.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Owani. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)84 (3.3)116 (4.6)112 (4.4)129 (5.1)111 (4.4)141 (5.5)152 (6.0)183 (7.2)140 (5.5)175 (6.9)115 (4.5)133 (5.2)
Average precipitation days (≥ 1 mm)182217171313171714141725

Monthly sunshine hours in Owani, Japan

The sunniest months in Owani are May, July and August, when the sun shines an average of 9 hours 54 minutes a day. Least sunny months in Owani: January, November and December receive an average of 5 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Owani. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours152196249275305297316298266227194180
Mean daily daylight hours9h 37m10h 38m11h 56m13h 17m14h 26m15h 0m14h 43m13h 43m12h 26m11h 5m9h 55m9h 18m

Solar UV radiation in Owani, Japan

Owani experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Owani UV Index data.

Average daily maximum UV levels by month for Owani. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)346891010119642