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Monthly climate in Ono, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Ono features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (44 °F) and 29 °C (84 °F) through the year, but rarely can drop to -4 °C (26 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1610 mm (63.4 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually. Ono enjoys an average of 3015 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 26 minutes per day.

Monthly average temperatures in Ono, Japan

The warmest months in Ono are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (78 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (44 - 49 °F) throughout the day. On average each year, Ono experiences 96 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Ono. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		16°C
(62°F)		18°C
(65°F)		23°C
(74°F)		28°C
(83°F)		30°C
(87°F)		34°C
(94°F)		35°C
(96°F)		34°C
(94°F)		30°C
(86°F)		23°C
(74°F)		20°C
(67°F)
Mean maximum13°C
(56°F)		14°C
(57°F)		17°C
(63°F)		22°C
(72°F)		26°C
(80°F)		28°C
(83°F)		33°C
(91°F)		34°C
(94°F)		32°C
(90°F)		28°C
(82°F)		22°C
(72°F)		17°C
(63°F)
Average high9°C
(49°F)		9°C
(49°F)		13°C
(56°F)		17°C
(64°F)		22°C
(72°F)		25°C
(78°F)		29°C
(84°F)		31°C
(88°F)		28°C
(82°F)		23°C
(73°F)		17°C
(63°F)		12°C
(53°F)
Daily mean7°C
(44°F)		7°C
(44°F)		10°C
(51°F)		15°C
(59°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)		29°C
(84°F)		25°C
(78°F)		20°C
(68°F)		14°C
(58°F)		9°C
(49°F)
Average low4°C
(39°F)		4°C
(39°F)		7°C
(45°F)		12°C
(53°F)		17°C
(63°F)		21°C
(69°F)		25°C
(78°F)		27°C
(80°F)		23°C
(73°F)		17°C
(63°F)		11°C
(53°F)		6°C
(44°F)
Mean minimum0°C
(33°F)		-1°C
(31°F)		3°C
(38°F)		6°C
(43°F)		12°C
(53°F)		17°C
(63°F)		22°C
(72°F)		23°C
(74°F)		18°C
(64°F)		12°C
(54°F)		7°C
(45°F)		2°C
(37°F)
Minimum-1°C
(31°F)		-4°C
(26°F)		2°C
(37°F)		5°C
(41°F)		11°C
(52°F)		16°C
(61°F)		21°C
(70°F)		21°C
(70°F)		14°C
(58°F)		11°C
(52°F)		6°C
(44°F)		1°C
(34°F)

Compare climate in Ono with other places

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

Monthly average precipitation in Ono, Japan

Ono usually has the most precipitation in July, September and October, with an average of 14 rainy days and 244 mm (9.6 inches) of precipitation per month. The driest months in Ono are January, February and November. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Ono. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)41 (1.6)51 (2.0)99 (3.9)122 (4.8)138 (5.4)140 (5.5)302 (11.9)187 (7.3)205 (8.1)225 (8.9)45 (1.8)55 (2.2)
Average precipitation days (≥ 1 mm)55989111713151166

Monthly sunshine hours in Ono, Japan

The sunniest months in Ono are April, May and August, when the sun shines an average of 9 hours 32 minutes a day. Least sunny months in Ono: January, February and December receive an average of 6 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Ono. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours178222260279292274268306246238234212
Mean daily daylight hours10h 5m10h 54m11h 58m13h 3m13h 58m14h 26m14h 12m13h 24m12h 21m11h 16m10h 20m9h 51m

Solar UV radiation in Ono, Japan

Ono experiences the highest level of ultraviolet (UV) radiation in April, July and August, when the maximum UV index can reach values of 11 - 12, 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 Ono UV Index data.

Average daily maximum UV levels by month for Ono. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468111111121110754