nomadseason

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 17 °C (63 °F) and 28 °C (83 °F) through the year, but rarely can drop to 10 °C (51 °F) or can rise to as high as 31 °C (88 °F). The average annual precipitation amounts to about 2102 mm (82.8 inches) and receives 170 rainy days on the 1 mm (0.04 inches) threshold annually. Amagi enjoys an average of 3001 hours of sunshine throughout the year, and daylight varies from 10 hours 24 minutes to 13 hours 50 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 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 17 to 19 °C (63 - 66 °F) throughout the day. On average each year, Amagi experiences 123 days above 25 °C (77.0 °F) and 0 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
Maximum23°C
(73°F)		23°C
(74°F)		23°C
(73°F)		25°C
(77°F)		26°C
(80°F)		28°C
(83°F)		30°C
(87°F)		31°C
(88°F)		30°C
(86°F)		29°C
(84°F)		26°C
(80°F)		25°C
(77°F)
Mean maximum22°C
(72°F)		22°C
(71°F)		22°C
(72°F)		24°C
(75°F)		25°C
(78°F)		27°C
(81°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		28°C
(83°F)		25°C
(78°F)		23°C
(74°F)
Average high18°C
(65°F)		18°C
(65°F)		20°C
(68°F)		21°C
(71°F)		24°C
(75°F)		26°C
(79°F)		28°C
(83°F)		29°C
(84°F)		28°C
(83°F)		26°C
(79°F)		23°C
(74°F)		20°C
(68°F)
Daily mean17°C
(63°F)		17°C
(63°F)		19°C
(66°F)		20°C
(69°F)		23°C
(74°F)		26°C
(78°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		25°C
(78°F)		22°C
(72°F)		19°C
(66°F)
Average low16°C
(61°F)		16°C
(61°F)		18°C
(64°F)		20°C
(68°F)		22°C
(72°F)		25°C
(77°F)		27°C
(81°F)		28°C
(82°F)		27°C
(81°F)		25°C
(77°F)		21°C
(71°F)		18°C
(64°F)
Mean minimum13°C
(55°F)		12°C
(54°F)		15°C
(58°F)		16°C
(60°F)		20°C
(68°F)		22°C
(72°F)		26°C
(78°F)		26°C
(80°F)		25°C
(78°F)		21°C
(71°F)		18°C
(65°F)		14°C
(58°F)
Minimum11°C
(51°F)		10°C
(51°F)		13°C
(56°F)		15°C
(58°F)		19°C
(66°F)		21°C
(70°F)		25°C
(78°F)		25°C
(77°F)		24°C
(75°F)		21°C
(69°F)		17°C
(63°F)		13°C
(55°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 September, with an average of 17 rainy days and 292 mm (11.5 inches) of precipitation per month. The driest months in Amagi are January, February and April. On average, 113 mm (4.5 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)109 (4.3)117 (4.6)153 (6.0)114 (4.5)192 (7.5)456 (17.9)208 (8.2)150 (5.9)211 (8.3)137 (5.4)130 (5.1)127 (5.0)
Average precipitation days (≥ 1 mm)121315121420111420121116

Monthly sunshine hours in Amagi, Japan

The sunniest months in Amagi are May, July and August, when the sun shines an average of 9 hours 57 minutes a day. Least sunny months in Amagi: January, February and December receive an average of 5 hours 41 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 hours145185254261291255313321290268228186
Mean daily daylight hours10h 35m11h 12m11h 59m12h 49m13h 30m13h 50m13h 40m13h 4m12h 17m11h 28m10h 46m10h 24m

Solar UV radiation in Amagi, Japan

Amagi experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 13 - 13, which corresponds to the Extreme category of sun exposure. January, February and December are in the High / Very High exposure category. In these months, the maximum values of the UV index do not exceed 8. 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)6811121213131312986