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Monthly climate in Mutsu, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Mutsu features a humid continental climate (Dfb). Temperatures typically range between 1 °C (33 °F) and 22 °C (71 °F) through the year, but rarely can drop to -7 °C (20 °F) or can rise to as high as 27 °C (82 °F). The average annual precipitation amounts to about 1563 mm (61.5 inches) and receives 192 rainy days on the 1 mm (0.04 inches) threshold annually. Mutsu enjoys an average of 2846 hours of sunshine throughout the year, and daylight varies from 9 hours 14 minutes to 15 hours 5 minutes per day.

Monthly average temperatures in Mutsu, Japan

The warmest months in Mutsu are July, August and September, with daily mean temperatures ranging from 19 to 22 °C (67 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 4 °C (33 - 39 °F) throughout the day. On average each year, Mutsu experiences 4 days above 25 °C (77.0 °F) and 42 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mutsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(48°F)		8°C
(46°F)		12°C
(54°F)		15°C
(60°F)		19°C
(67°F)		21°C
(70°F)		25°C
(78°F)		27°C
(82°F)		27°C
(80°F)		24°C
(75°F)		17°C
(63°F)		15°C
(58°F)
Mean maximum7°C
(45°F)		7°C
(44°F)		11°C
(51°F)		13°C
(56°F)		16°C
(62°F)		19°C
(66°F)		24°C
(76°F)		26°C
(78°F)		25°C
(76°F)		22°C
(71°F)		16°C
(62°F)		12°C
(54°F)
Average high2°C
(36°F)		2°C
(36°F)		5°C
(42°F)		9°C
(48°F)		13°C
(55°F)		16°C
(61°F)		20°C
(68°F)		22°C
(73°F)		21°C
(70°F)		17°C
(63°F)		11°C
(52°F)		5°C
(41°F)
Daily mean1°C
(34°F)		1°C
(33°F)		4°C
(39°F)		7°C
(45°F)		11°C
(53°F)		15°C
(59°F)		19°C
(67°F)		22°C
(71°F)		20°C
(69°F)		16°C
(60°F)		10°C
(49°F)		4°C
(39°F)
Average low-0°C
(32°F)		-1°C
(31°F)		3°C
(37°F)		6°C
(43°F)		10°C
(51°F)		14°C
(57°F)		18°C
(65°F)		21°C
(70°F)		19°C
(67°F)		15°C
(58°F)		8°C
(47°F)		2°C
(36°F)
Mean minimum-5°C
(22°F)		-5°C
(23°F)		-1°C
(30°F)		2°C
(36°F)		7°C
(45°F)		11°C
(52°F)		15°C
(59°F)		18°C
(65°F)		16°C
(62°F)		9°C
(49°F)		2°C
(36°F)		-3°C
(27°F)
Minimum-7°C
(20°F)		-7°C
(20°F)		-3°C
(27°F)		1°C
(34°F)		6°C
(42°F)		10°C
(50°F)		13°C
(56°F)		17°C
(63°F)		15°C
(60°F)		8°C
(48°F)		-0°C
(32°F)		-4°C
(25°F)

Compare climate in Mutsu with other places

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

Monthly average precipitation in Mutsu, Japan

Mutsu usually has the most precipitation in August, October and December, with an average of 18 rainy days and 188 mm (7.4 inches) of precipitation per month. The driest months in Mutsu are March, April and May. On average, 95 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mutsu. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)130 (5.1)129 (5.1)93 (3.7)95 (3.7)97 (3.8)114 (4.5)109 (4.3)193 (7.6)113 (4.5)170 (6.7)118 (4.7)202 (8.0)
Average precipitation days (≥ 1 mm)212115141211111311162027

Monthly sunshine hours in Mutsu, Japan

The sunniest months in Mutsu are April, May and June, when the sun shines an average of 9 hours 17 minutes a day. Least sunny months in Mutsu: January, November and December receive an average of 5 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mutsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours156201252275294276272257255225192186
Mean daily daylight hours9h 33m10h 36m11h 56m13h 19m14h 29m15h 5m14h 47m13h 45m12h 26m11h 4m9h 52m9h 14m

Solar UV radiation in Mutsu, Japan

Mutsu experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Mutsu UV Index data.

Average daily maximum UV levels by month for Mutsu. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)345891010118642