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Monthly climate in Mimasaka, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mimasaka features a humid subtropical climate (Cfa). Temperatures typically range between 4 °C (39 °F) and 27 °C (82 °F) through the year, but rarely can drop to -9 °C (16 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 1673 mm (65.8 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually. Mimasaka enjoys an average of 2874 hours of sunshine throughout the year, and daylight varies from 9 hours 49 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Mimasaka, Japan

The warmest months in Mimasaka are July, August and September, with daily mean temperatures ranging from 23 to 27 °C (74 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 6 °C (39 - 43 °F) throughout the day. On average each year, Mimasaka experiences 99 days above 25 °C (77.0 °F) and 41 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mimasaka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(59°F)		20°C
(68°F)		24°C
(75°F)		26°C
(79°F)		30°C
(87°F)		31°C
(88°F)		36°C
(98°F)		36°C
(98°F)		33°C
(92°F)		29°C
(85°F)		23°C
(74°F)		20°C
(68°F)
Mean maximum13°C
(56°F)		15°C
(60°F)		21°C
(70°F)		25°C
(76°F)		28°C
(84°F)		30°C
(86°F)		34°C
(93°F)		36°C
(96°F)		32°C
(90°F)		28°C
(83°F)		22°C
(72°F)		16°C
(61°F)
Average high8°C
(47°F)		9°C
(49°F)		14°C
(57°F)		18°C
(65°F)		23°C
(74°F)		26°C
(79°F)		29°C
(85°F)		31°C
(89°F)		27°C
(81°F)		22°C
(72°F)		16°C
(62°F)		10°C
(51°F)
Daily mean4°C
(39°F)		5°C
(40°F)		9°C
(48°F)		13°C
(56°F)		18°C
(65°F)		22°C
(71°F)		26°C
(79°F)		27°C
(82°F)		23°C
(74°F)		18°C
(64°F)		11°C
(53°F)		6°C
(43°F)
Average low0°C
(33°F)		0°C
(33°F)		4°C
(39°F)		8°C
(47°F)		13°C
(56°F)		17°C
(64°F)		23°C
(73°F)		24°C
(75°F)		20°C
(68°F)		14°C
(57°F)		7°C
(44°F)		2°C
(36°F)
Mean minimum-5°C
(24°F)		-5°C
(24°F)		-2°C
(29°F)		1°C
(33°F)		6°C
(43°F)		13°C
(55°F)		19°C
(67°F)		20°C
(68°F)		14°C
(57°F)		7°C
(45°F)		1°C
(34°F)		-3°C
(28°F)
Minimum-8°C
(18°F)		-9°C
(16°F)		-2°C
(28°F)		-1°C
(30°F)		4°C
(39°F)		11°C
(52°F)		18°C
(64°F)		17°C
(63°F)		12°C
(54°F)		6°C
(43°F)		-0°C
(32°F)		-4°C
(25°F)

Compare climate in Mimasaka with other places

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

Monthly average precipitation in Mimasaka, Japan

Mimasaka usually has the most precipitation in July, August and September, with an average of 15 rainy days and 252 mm (9.9 inches) of precipitation per month. The driest months in Mimasaka are January, November and December. On average, 43 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mimasaka. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)40 (1.6)56 (2.2)113 (4.4)133 (5.2)127 (5.0)173 (6.8)309 (12.1)224 (8.8)224 (8.8)185 (7.3)34 (1.3)54 (2.1)
Average precipitation days (≥ 1 mm)6711109131913131047

Monthly sunshine hours in Mimasaka, Japan

The sunniest months in Mimasaka are April, May and August, when the sun shines an average of 9 hours 11 minutes a day. Least sunny months in Mimasaka: January, February and December receive an average of 6 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mimasaka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours167205247272282267256290230226223203
Mean daily daylight hours10h 4m10h 54m11h 58m13h 4m13h 59m14h 27m14h 13m13h 25m12h 22m11h 16m10h 19m9h 49m

Solar UV radiation in Mimasaka, Japan

Mimasaka 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 Mimasaka UV Index data.

Average daily maximum UV levels by month for Mimasaka. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468111111121210753