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Monthly climate in Oyabe, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Oyabe features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (40 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 40 °C (104 °F). The average annual precipitation amounts to about 1926 mm (75.8 inches) and receives 189 rainy days on the 1 mm (0.04 inches) threshold annually. Oyabe enjoys an average of 3024 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 Oyabe, Japan

The warmest months in Oyabe are July, August and September, with daily mean temperatures ranging from 24 to 28 °C (75 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 7 °C (40 - 45 °F) throughout the day. On average each year, Oyabe experiences 97 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oyabe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(61°F)		19°C
(67°F)		22°C
(72°F)		27°C
(82°F)		31°C
(89°F)		32°C
(91°F)		37°C
(99°F)		40°C
(104°F)		38°C
(101°F)		32°C
(90°F)		26°C
(79°F)		22°C
(72°F)
Mean maximum13°C
(55°F)		14°C
(58°F)		20°C
(69°F)		23°C
(75°F)		30°C
(85°F)		30°C
(86°F)		34°C
(94°F)		37°C
(99°F)		32°C
(90°F)		29°C
(84°F)		23°C
(74°F)		17°C
(63°F)
Average high7°C
(44°F)		8°C
(46°F)		12°C
(55°F)		17°C
(62°F)		23°C
(73°F)		26°C
(78°F)		30°C
(86°F)		32°C
(90°F)		27°C
(81°F)		21°C
(71°F)		16°C
(61°F)		10°C
(50°F)
Daily mean4°C
(40°F)		5°C
(40°F)		9°C
(48°F)		13°C
(55°F)		19°C
(66°F)		22°C
(72°F)		27°C
(80°F)		28°C
(83°F)		24°C
(75°F)		18°C
(65°F)		12°C
(54°F)		7°C
(45°F)
Average low1°C
(35°F)		2°C
(35°F)		5°C
(41°F)		9°C
(48°F)		15°C
(58°F)		19°C
(66°F)		24°C
(75°F)		25°C
(78°F)		21°C
(70°F)		15°C
(59°F)		9°C
(48°F)		4°C
(39°F)
Mean minimum-4°C
(26°F)		-2°C
(28°F)		0°C
(33°F)		3°C
(37°F)		8°C
(47°F)		14°C
(58°F)		21°C
(69°F)		21°C
(70°F)		16°C
(61°F)		10°C
(50°F)		3°C
(38°F)		-2°C
(29°F)
Minimum-7°C
(20°F)		-5°C
(24°F)		-1°C
(31°F)		1°C
(34°F)		6°C
(44°F)		12°C
(54°F)		20°C
(68°F)		18°C
(65°F)		13°C
(56°F)		9°C
(48°F)		2°C
(35°F)		-5°C
(24°F)

Compare climate in Oyabe with other places

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

Monthly average precipitation in Oyabe, Japan

Oyabe usually has the most precipitation in July, August and September, with an average of 16 rainy days and 228 mm (9.0 inches) of precipitation per month. The driest months in Oyabe are February, May and November. On average, 114 mm (4.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oyabe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)144 (5.7)128 (5.0)129 (5.1)142 (5.6)95 (3.8)134 (5.3)270 (10.6)215 (8.5)199 (7.8)160 (6.3)118 (4.6)192 (7.6)
Average precipitation days (≥ 1 mm)201816131012181615141423

Monthly sunshine hours in Oyabe, Japan

The sunniest months in Oyabe are May, June and August, when the sun shines an average of 9 hours 57 minutes a day. Least sunny months in Oyabe: January, February and December receive an average of 6 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oyabe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours155205260283306299290309255237222198
Mean daily daylight hours9h 56m10h 49m11h 57m13h 7m14h 6m14h 36m14h 21m13h 30m12h 23m11h 13m10h 12m9h 41m

Solar UV radiation in Oyabe, Japan

Oyabe experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, February 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 Oyabe UV Index data.

Average daily maximum UV levels by month for Oyabe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)35710101111119653