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Monthly climate in Mitoyo, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mitoyo features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (44 °F) and 28 °C (83 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 34 °C (94 °F). The average annual precipitation amounts to about 1531 mm (60.3 inches) and receives 121 rainy days on the 1 mm (0.04 inches) threshold annually. Mitoyo enjoys an average of 3073 hours of sunshine throughout the year, and daylight varies from 9 hours 53 minutes to 14 hours 23 minutes per day.

Monthly average temperatures in Mitoyo, Japan

The warmest months in Mitoyo are July, August and September, with daily mean temperatures ranging from 25 to 28 °C (77 - 83 °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 - 48 °F) throughout the day. On average each year, Mitoyo experiences 86 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 Mitoyo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		18°C
(65°F)		19°C
(67°F)		24°C
(76°F)		28°C
(82°F)		30°C
(86°F)		33°C
(92°F)		34°C
(94°F)		34°C
(93°F)		30°C
(86°F)		23°C
(74°F)		21°C
(70°F)
Mean maximum13°C
(56°F)		14°C
(58°F)		18°C
(65°F)		21°C
(71°F)		26°C
(78°F)		28°C
(82°F)		31°C
(89°F)		33°C
(92°F)		32°C
(89°F)		28°C
(82°F)		22°C
(72°F)		17°C
(63°F)
Average high9°C
(48°F)		9°C
(49°F)		13°C
(56°F)		17°C
(63°F)		22°C
(71°F)		25°C
(77°F)		28°C
(83°F)		31°C
(87°F)		27°C
(81°F)		22°C
(72°F)		17°C
(62°F)		11°C
(53°F)
Daily mean7°C
(44°F)		7°C
(45°F)		10°C
(51°F)		14°C
(58°F)		19°C
(67°F)		22°C
(73°F)		26°C
(80°F)		28°C
(83°F)		25°C
(77°F)		20°C
(68°F)		14°C
(58°F)		9°C
(48°F)
Average low4°C
(40°F)		4°C
(40°F)		7°C
(46°F)		11°C
(53°F)		16°C
(61°F)		20°C
(68°F)		25°C
(76°F)		26°C
(79°F)		23°C
(73°F)		18°C
(64°F)		11°C
(53°F)		7°C
(44°F)
Mean minimum1°C
(34°F)		1°C
(34°F)		3°C
(38°F)		6°C
(43°F)		11°C
(53°F)		17°C
(63°F)		22°C
(72°F)		23°C
(74°F)		18°C
(65°F)		13°C
(55°F)		6°C
(44°F)		3°C
(37°F)
Minimum-2°C
(29°F)		-1°C
(30°F)		2°C
(36°F)		5°C
(41°F)		10°C
(51°F)		16°C
(61°F)		21°C
(69°F)		21°C
(70°F)		17°C
(64°F)		11°C
(53°F)		5°C
(42°F)		2°C
(35°F)

Compare climate in Mitoyo with other places

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

Monthly average precipitation in Mitoyo, Japan

Mitoyo usually has the most precipitation in July, September and October, with an average of 13 rainy days and 225 mm (8.9 inches) of precipitation per month. The driest months in Mitoyo are January, November and December. On average, 50 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mitoyo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)64 (2.5)102 (4.0)120 (4.7)125 (4.9)161 (6.3)282 (11.1)136 (5.3)187 (7.4)206 (8.1)48 (1.9)53 (2.1)
Average precipitation days (≥ 1 mm)881181013159131268

Monthly sunshine hours in Mitoyo, Japan

The sunniest months in Mitoyo are May, June and August, when the sun shines an average of 9 hours 39 minutes a day. Least sunny months in Mitoyo: January, February and December receive an average of 6 hours 52 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mitoyo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours180230265282298284279305254243234215
Mean daily daylight hours10h 7m10h 56m11h 58m13h 2m13h 56m14h 23m14h 10m13h 22m12h 21m11h 17m10h 22m9h 53m

Solar UV radiation in Mitoyo, Japan

Mitoyo 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, 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 Mitoyo UV Index data.

Average daily maximum UV levels by month for Mitoyo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)458101111121210754