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Monthly climate in Amagi, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Amagi features a humid subtropical climate (Cfa). Temperatures typically range between 6 °C (42 °F) and 28 °C (83 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 38 °C (100 °F). The average annual precipitation amounts to about 1760 mm (69.3 inches) and receives 133 rainy days on the 1 mm (0.04 inches) threshold annually. Amagi enjoys an average of 3050 hours of sunshine throughout the year, and daylight varies from 9 hours 57 minutes to 14 hours 19 minutes per day.

Monthly average temperatures in Amagi, Japan

The warmest months in Amagi are July, August and September, with daily mean temperatures ranging from 24 to 28 °C (76 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 7 °C (42 - 45 °F) throughout the day. On average each year, Amagi experiences 117 days above 25 °C (77.0 °F) and 23 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Amagi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(63°F)		22°C
(72°F)		24°C
(76°F)		28°C
(82°F)		32°C
(89°F)		32°C
(90°F)		36°C
(96°F)		38°C
(100°F)		35°C
(95°F)		31°C
(89°F)		26°C
(79°F)		22°C
(72°F)
Mean maximum16°C
(60°F)		18°C
(64°F)		22°C
(72°F)		26°C
(79°F)		30°C
(86°F)		31°C
(87°F)		34°C
(94°F)		36°C
(97°F)		33°C
(92°F)		29°C
(85°F)		23°C
(75°F)		18°C
(65°F)
Average high10°C
(50°F)		11°C
(52°F)		16°C
(61°F)		20°C
(68°F)		25°C
(76°F)		27°C
(81°F)		30°C
(86°F)		32°C
(90°F)		28°C
(83°F)		23°C
(74°F)		18°C
(65°F)		12°C
(53°F)
Daily mean6°C
(42°F)		7°C
(44°F)		11°C
(52°F)		15°C
(59°F)		20°C
(68°F)		23°C
(74°F)		27°C
(80°F)		28°C
(83°F)		24°C
(76°F)		19°C
(66°F)		13°C
(55°F)		7°C
(45°F)
Average low2°C
(35°F)		2°C
(36°F)		6°C
(43°F)		10°C
(50°F)		15°C
(59°F)		19°C
(67°F)		24°C
(75°F)		25°C
(77°F)		21°C
(70°F)		15°C
(59°F)		8°C
(46°F)		3°C
(38°F)
Mean minimum-3°C
(27°F)		-2°C
(28°F)		-0°C
(32°F)		3°C
(37°F)		8°C
(46°F)		15°C
(60°F)		20°C
(69°F)		21°C
(70°F)		14°C
(58°F)		8°C
(47°F)		1°C
(34°F)		-1°C
(30°F)
Minimum-4°C
(25°F)		-5°C
(24°F)		-2°C
(29°F)		1°C
(35°F)		5°C
(42°F)		14°C
(57°F)		17°C
(63°F)		19°C
(66°F)		12°C
(54°F)		7°C
(45°F)		-1°C
(30°F)		-2°C
(28°F)

Compare climate in Amagi with other places

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

Monthly average precipitation in Amagi, Japan

Amagi usually has the most precipitation in June, July and August, with an average of 16 rainy days and 275 mm (10.8 inches) of precipitation per month. The driest months in Amagi are January, November and December. On average, 55 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Amagi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)53 (2.1)75 (2.9)117 (4.6)112 (4.4)162 (6.4)200 (7.9)356 (14.0)269 (10.6)189 (7.4)115 (4.5)50 (1.9)61 (2.4)
Average precipitation days (≥ 1 mm)791191114201415977

Monthly sunshine hours in Amagi, Japan

The sunniest months in Amagi are April, May and August, when the sun shines an average of 9 hours 29 minutes a day. Least sunny months in Amagi: January, February and December receive an average of 6 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Amagi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours177233261278293275273301251251235217
Mean daily daylight hours10h 11m10h 57m11h 58m13h 0m13h 53m14h 19m14h 6m13h 20m12h 21m11h 19m10h 25m9h 57m

Solar UV radiation in Amagi, Japan

Amagi 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, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Amagi UV Index data.

Average daily maximum UV levels by month for Amagi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468111111121211764