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Monthly climate in Minamiboso, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Minamiboso features a humid subtropical climate (Cfa). Temperatures typically range between 9 °C (48 °F) and 26 °C (80 °F) through the year, but rarely can drop to 1 °C (33 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 2019 mm (79.5 inches) and receives 152 rainy days on the 1 mm (0.04 inches) threshold annually. Minamiboso enjoys an average of 2882 hours of sunshine throughout the year, and daylight varies from 9 hours 49 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Minamiboso, Japan

The warmest months in Minamiboso are July, August and September, with daily mean temperatures ranging from 24 to 26 °C (76 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 12 °C (48 - 53 °F) throughout the day. On average each year, Minamiboso experiences 58 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 Minamiboso. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum18°C
(65°F)		19°C
(66°F)		19°C
(66°F)		21°C
(70°F)		23°C
(73°F)		25°C
(77°F)		28°C
(82°F)		29°C
(85°F)		29°C
(84°F)		26°C
(80°F)		23°C
(73°F)		21°C
(70°F)
Mean maximum16°C
(62°F)		17°C
(63°F)		18°C
(64°F)		19°C
(67°F)		22°C
(72°F)		24°C
(75°F)		27°C
(81°F)		29°C
(84°F)		28°C
(83°F)		25°C
(78°F)		22°C
(72°F)		19°C
(67°F)
Average high11°C
(52°F)		11°C
(53°F)		14°C
(57°F)		16°C
(62°F)		19°C
(67°F)		22°C
(72°F)		25°C
(78°F)		27°C
(81°F)		25°C
(78°F)		22°C
(72°F)		18°C
(65°F)		14°C
(57°F)
Daily mean9°C
(48°F)		9°C
(49°F)		12°C
(54°F)		15°C
(59°F)		18°C
(65°F)		21°C
(70°F)		24°C
(76°F)		26°C
(80°F)		24°C
(76°F)		20°C
(69°F)		16°C
(62°F)		12°C
(53°F)
Average low7°C
(44°F)		7°C
(45°F)		10°C
(50°F)		13°C
(55°F)		17°C
(63°F)		20°C
(68°F)		23°C
(75°F)		25°C
(78°F)		23°C
(74°F)		19°C
(66°F)		15°C
(59°F)		10°C
(49°F)
Mean minimum3°C
(37°F)		3°C
(38°F)		5°C
(42°F)		8°C
(46°F)		13°C
(56°F)		18°C
(64°F)		21°C
(71°F)		22°C
(73°F)		20°C
(68°F)		15°C
(60°F)		9°C
(49°F)		5°C
(41°F)
Minimum1°C
(33°F)		2°C
(36°F)		5°C
(41°F)		6°C
(43°F)		12°C
(54°F)		17°C
(62°F)		20°C
(67°F)		21°C
(71°F)		19°C
(67°F)		14°C
(58°F)		7°C
(45°F)		3°C
(38°F)

Compare climate in Minamiboso with other places

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

Monthly average precipitation in Minamiboso, Japan

Minamiboso usually has the most precipitation in June, July and October, with an average of 15 rainy days and 256 mm (10.1 inches) of precipitation per month. The driest months in Minamiboso are January, February and December. On average, 83 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Minamiboso. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)81 (3.2)72 (2.8)195 (7.7)139 (5.5)161 (6.4)213 (8.4)240 (9.5)131 (5.1)211 (8.3)314 (12.4)165 (6.5)98 (3.8)
Average precipitation days (≥ 1 mm)81014101114151118171410

Monthly sunshine hours in Minamiboso, Japan

The sunniest months in Minamiboso are April, May and August, when the sun shines an average of 9 hours 12 minutes a day. Least sunny months in Minamiboso: January, October and November receive an average of 6 hours 33 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Minamiboso. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours184218250266283259250298234200218218
Mean daily daylight hours10h 4m10h 53m11h 58m13h 4m13h 59m14h 27m14h 13m13h 25m12h 22m11h 16m10h 19m9h 49m

Solar UV radiation in Minamiboso, Japan

Minamiboso experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Minamiboso UV Index data.

Average daily maximum UV levels by month for Minamiboso. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)458101111111110754