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Monthly climate in Kamiamakusa, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Kamiamakusa features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (46 °F) and 29 °C (84 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 2118 mm (83.4 inches) and receives 144 rainy days on the 1 mm (0.04 inches) threshold annually. Kamiamakusa enjoys an average of 3085 hours of sunshine throughout the year, and daylight varies from 10 hours 2 minutes to 14 hours 14 minutes per day.

Monthly average temperatures in Kamiamakusa, Japan

The warmest months in Kamiamakusa are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (78 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (46 - 48 °F) throughout the day. On average each year, Kamiamakusa experiences 110 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Kamiamakusa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum19°C
(66°F)		19°C
(67°F)		23°C
(74°F)		26°C
(79°F)		29°C
(84°F)		31°C
(88°F)		34°C
(94°F)		36°C
(96°F)		34°C
(93°F)		32°C
(89°F)		24°C
(76°F)		23°C
(74°F)
Mean maximum16°C
(61°F)		17°C
(63°F)		21°C
(70°F)		24°C
(76°F)		28°C
(82°F)		29°C
(85°F)		33°C
(92°F)		35°C
(95°F)		32°C
(91°F)		29°C
(84°F)		23°C
(73°F)		18°C
(65°F)
Average high10°C
(51°F)		11°C
(52°F)		16°C
(60°F)		20°C
(68°F)		24°C
(75°F)		26°C
(80°F)		30°C
(86°F)		31°C
(89°F)		28°C
(83°F)		24°C
(75°F)		18°C
(64°F)		12°C
(54°F)
Daily mean7°C
(46°F)		8°C
(47°F)		13°C
(55°F)		17°C
(62°F)		21°C
(70°F)		24°C
(75°F)		27°C
(81°F)		29°C
(84°F)		25°C
(78°F)		21°C
(69°F)		15°C
(58°F)		9°C
(48°F)
Average low5°C
(41°F)		5°C
(42°F)		9°C
(49°F)		13°C
(56°F)		18°C
(64°F)		21°C
(70°F)		25°C
(77°F)		26°C
(79°F)		23°C
(74°F)		18°C
(64°F)		12°C
(53°F)		6°C
(44°F)
Mean minimum0°C
(33°F)		1°C
(34°F)		5°C
(41°F)		8°C
(46°F)		13°C
(56°F)		18°C
(65°F)		22°C
(72°F)		24°C
(75°F)		19°C
(66°F)		13°C
(55°F)		6°C
(44°F)		2°C
(36°F)
Minimum-2°C
(29°F)		-1°C
(31°F)		4°C
(39°F)		7°C
(45°F)		11°C
(52°F)		16°C
(61°F)		21°C
(69°F)		21°C
(71°F)		17°C
(63°F)		12°C
(54°F)		5°C
(41°F)		0°C
(33°F)

Compare climate in Kamiamakusa with other places

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

Monthly average precipitation in Kamiamakusa, Japan

Kamiamakusa usually has the most precipitation in June, July and August, with an average of 17 rainy days and 327 mm (12.9 inches) of precipitation per month. The driest months in Kamiamakusa are January, November and December. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Kamiamakusa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)60 (2.4)98 (3.9)140 (5.5)135 (5.3)213 (8.4)307 (12.1)427 (16.8)246 (9.7)198 (7.8)124 (4.9)85 (3.3)86 (3.4)
Average precipitation days (≥ 1 mm)610131012171916151097

Monthly sunshine hours in Kamiamakusa, Japan

The sunniest months in Kamiamakusa are April, May and August, when the sun shines an average of 9 hours 28 minutes a day. Least sunny months in Kamiamakusa: January, February and December receive an average of 7 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Kamiamakusa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours188236267285281256273304263261240224
Mean daily daylight hours10h 15m11h 0m11h 59m12h 58m13h 48m14h 14m14h 1m13h 17m12h 20m11h 20m10h 29m10h 2m

Solar UV radiation in Kamiamakusa, Japan

Kamiamakusa experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 12 - 13, 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 Kamiamakusa UV Index data.

Average daily maximum UV levels by month for Kamiamakusa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)569111212121311864