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Monthly climate in Chichibu, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chichibu features a humid subtropical climate (Cfa). Temperatures typically range between 2 °C (36 °F) and 25 °C (77 °F) through the year, but rarely can drop to -12 °C (10 °F) or can rise to as high as 35 °C (94 °F). The average annual precipitation amounts to about 2233 mm (87.9 inches) and receives 199 rainy days on the 1 mm (0.04 inches) threshold annually. Chichibu enjoys an average of 2916 hours of sunshine throughout the year, and daylight varies from 9 hours 44 minutes to 14 hours 33 minutes per day.

Monthly average temperatures in Chichibu, Japan

The warmest months in Chichibu are July, August and September, with daily mean temperatures ranging from 20 to 25 °C (69 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 5 °C (36 - 40 °F) throughout the day. On average each year, Chichibu experiences 62 days above 25 °C (77.0 °F) and 62 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Chichibu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(61°F)		21°C
(70°F)		24°C
(76°F)		27°C
(81°F)		31°C
(87°F)		31°C
(88°F)		34°C
(93°F)		35°C
(94°F)		33°C
(91°F)		30°C
(86°F)		21°C
(70°F)		19°C
(67°F)
Mean maximum13°C
(57°F)		17°C
(63°F)		21°C
(70°F)		24°C
(75°F)		29°C
(84°F)		27°C
(81°F)		32°C
(89°F)		33°C
(91°F)		30°C
(87°F)		26°C
(80°F)		20°C
(68°F)		16°C
(60°F)
Average high7°C
(45°F)		9°C
(48°F)		13°C
(55°F)		17°C
(62°F)		21°C
(70°F)		23°C
(74°F)		26°C
(80°F)		28°C
(83°F)		24°C
(75°F)		19°C
(66°F)		15°C
(59°F)		10°C
(50°F)
Daily mean2°C
(36°F)		3°C
(38°F)		7°C
(45°F)		11°C
(52°F)		16°C
(62°F)		19°C
(67°F)		23°C
(74°F)		25°C
(77°F)		20°C
(69°F)		15°C
(59°F)		10°C
(49°F)		5°C
(40°F)
Average low-1°C
(30°F)		-1°C
(30°F)		2°C
(36°F)		6°C
(44°F)		12°C
(54°F)		16°C
(61°F)		20°C
(69°F)		22°C
(71°F)		17°C
(64°F)		12°C
(54°F)		5°C
(42°F)		1°C
(34°F)
Mean minimum-6°C
(22°F)		-6°C
(21°F)		-3°C
(27°F)		0°C
(32°F)		5°C
(42°F)		12°C
(53°F)		17°C
(62°F)		17°C
(63°F)		13°C
(55°F)		6°C
(43°F)		-1°C
(31°F)		-3°C
(27°F)
Minimum-12°C
(10°F)		-12°C
(10°F)		-4°C
(26°F)		-2°C
(28°F)		3°C
(38°F)		10°C
(50°F)		15°C
(59°F)		13°C
(56°F)		12°C
(53°F)		4°C
(40°F)		-2°C
(29°F)		-4°C
(24°F)

Compare climate in Chichibu with other places

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

Monthly average precipitation in Chichibu, Japan

Chichibu usually has the most precipitation in July, September and October, with an average of 23 rainy days and 340 mm (13.4 inches) of precipitation per month. The driest months in Chichibu are January, February and December. On average, 57 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chichibu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)55 (2.2)59 (2.3)152 (6.0)158 (6.2)186 (7.3)245 (9.7)377 (14.8)242 (9.5)285 (11.2)359 (14.1)59 (2.3)57 (2.2)
Average precipitation days (≥ 1 mm)810141617212625242198

Monthly sunshine hours in Chichibu, Japan

The sunniest months in Chichibu are April, May and August, when the sun shines an average of 9 hours 7 minutes a day. Least sunny months in Chichibu: January, September and October receive an average of 6 hours 47 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chichibu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours191236262278284262228276226206229234
Mean daily daylight hours10h 0m10h 51m11h 57m13h 6m14h 4m14h 33m14h 18m13h 28m12h 22m11h 14m10h 15m9h 44m

Solar UV radiation in Chichibu, Japan

Chichibu experiences the highest level of ultraviolet (UV) radiation in May, 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 Chichibu UV Index data.

Average daily maximum UV levels by month for Chichibu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468101111121110754