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Monthly climate in Hachinohe, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hachinohe features a humid continental climate (Dfb). Temperatures typically range between -1 °C (31 °F) and 24 °C (75 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1106 mm (43.5 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually. Hachinohe enjoys an average of 2861 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Hachinohe, Japan

The warmest months in Hachinohe are July, August and September, with daily mean temperatures ranging from 20 to 24 °C (69 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (31 - 35 °F) throughout the day. On average each year, Hachinohe experiences 50 days above 25 °C (77.0 °F) and 77 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hachinohe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum8°C
(47°F)		12°C
(54°F)		20°C
(69°F)		25°C
(78°F)		32°C
(90°F)		30°C
(87°F)		35°C
(95°F)		35°C
(95°F)		32°C
(90°F)		28°C
(83°F)		21°C
(70°F)		16°C
(61°F)
Mean maximum7°C
(45°F)		10°C
(51°F)		17°C
(64°F)		22°C
(72°F)		28°C
(82°F)		27°C
(81°F)		32°C
(90°F)		33°C
(91°F)		30°C
(86°F)		25°C
(77°F)		19°C
(67°F)		13°C
(55°F)
Average high2°C
(36°F)		3°C
(38°F)		9°C
(48°F)		14°C
(57°F)		20°C
(68°F)		22°C
(72°F)		26°C
(79°F)		27°C
(81°F)		24°C
(76°F)		18°C
(65°F)		12°C
(54°F)		5°C
(40°F)
Daily mean-1°C
(31°F)		0°C
(32°F)		5°C
(41°F)		9°C
(49°F)		15°C
(60°F)		18°C
(65°F)		22°C
(73°F)		24°C
(75°F)		20°C
(69°F)		14°C
(58°F)		8°C
(47°F)		2°C
(35°F)
Average low-3°C
(26°F)		-3°C
(27°F)		1°C
(35°F)		5°C
(42°F)		11°C
(53°F)		15°C
(59°F)		20°C
(68°F)		21°C
(70°F)		17°C
(63°F)		11°C
(52°F)		5°C
(41°F)		-1°C
(30°F)
Mean minimum-9°C
(15°F)		-9°C
(15°F)		-5°C
(23°F)		-0°C
(32°F)		6°C
(42°F)		11°C
(51°F)		15°C
(60°F)		16°C
(61°F)		11°C
(51°F)		5°C
(41°F)		-1°C
(30°F)		-7°C
(19°F)
Minimum-12°C
(11°F)		-12°C
(11°F)		-11°C
(12°F)		-4°C
(26°F)		5°C
(41°F)		8°C
(47°F)		14°C
(57°F)		14°C
(57°F)		8°C
(46°F)		3°C
(38°F)		-4°C
(25°F)		-10°C
(15°F)

Compare climate in Hachinohe with other places

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

Monthly average precipitation in Hachinohe, Japan

Hachinohe usually has the most precipitation in July, August and October, with an average of 12 rainy days and 142 mm (5.6 inches) of precipitation per month. The driest months in Hachinohe are January, November and December. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hachinohe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)45 (1.8)63 (2.5)83 (3.3)101 (4.0)93 (3.6)96 (3.8)123 (4.8)151 (5.9)100 (3.9)152 (6.0)43 (1.7)57 (2.2)
Average precipitation days (≥ 1 mm)811121411121314111089

Monthly sunshine hours in Hachinohe, Japan

The sunniest months in Hachinohe are May, June and July, when the sun shines an average of 9 hours 15 minutes a day. Least sunny months in Hachinohe: January, November and December receive an average of 6 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hachinohe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours158207254266295281274252252220201194
Mean daily daylight hours9h 37m10h 38m11h 56m13h 17m14h 25m15h 0m14h 42m13h 43m12h 26m11h 5m9h 55m9h 19m

Solar UV radiation in Hachinohe, Japan

Hachinohe 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 3. For more detailed information, check out our hourly Hachinohe UV Index data.

Average daily maximum UV levels by month for Hachinohe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)236891010119642