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Monthly climate in Soja, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Soja features a humid subtropical climate (Cfa). Temperatures typically range between 5 °C (41 °F) and 28 °C (83 °F) through the year, but rarely can drop to -7 °C (19 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1568 mm (61.7 inches) and receives 111 rainy days on the 1 mm (0.04 inches) threshold annually. Soja enjoys an average of 3028 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 25 minutes per day.

Monthly average temperatures in Soja, Japan

The warmest months in Soja are July, August and September, with daily mean temperatures ranging from 24 to 28 °C (75 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 7 °C (41 - 44 °F) throughout the day. On average each year, Soja experiences 113 days above 25 °C (77.0 °F) and 36 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Soja. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		21°C
(70°F)		25°C
(77°F)		27°C
(80°F)		32°C
(90°F)		33°C
(91°F)		37°C
(98°F)		37°C
(99°F)		35°C
(95°F)		31°C
(89°F)		24°C
(76°F)		20°C
(68°F)
Mean maximum14°C
(57°F)		16°C
(62°F)		22°C
(72°F)		25°C
(78°F)		30°C
(86°F)		31°C
(88°F)		34°C
(94°F)		36°C
(98°F)		33°C
(92°F)		29°C
(85°F)		23°C
(73°F)		17°C
(63°F)
Average high9°C
(49°F)		10°C
(51°F)		15°C
(59°F)		19°C
(67°F)		24°C
(76°F)		27°C
(81°F)		30°C
(86°F)		33°C
(91°F)		28°C
(82°F)		23°C
(73°F)		17°C
(63°F)		11°C
(53°F)
Daily mean5°C
(41°F)		5°C
(42°F)		10°C
(49°F)		14°C
(58°F)		19°C
(67°F)		23°C
(73°F)		27°C
(80°F)		28°C
(83°F)		24°C
(75°F)		18°C
(65°F)		12°C
(53°F)		7°C
(44°F)
Average low1°C
(33°F)		1°C
(34°F)		4°C
(40°F)		8°C
(47°F)		14°C
(57°F)		18°C
(65°F)		23°C
(74°F)		25°C
(77°F)		20°C
(69°F)		14°C
(57°F)		7°C
(44°F)		2°C
(36°F)
Mean minimum-4°C
(25°F)		-3°C
(27°F)		-2°C
(29°F)		1°C
(34°F)		6°C
(43°F)		13°C
(55°F)		20°C
(68°F)		20°C
(69°F)		13°C
(56°F)		6°C
(44°F)		-0°C
(32°F)		-1°C
(30°F)
Minimum-7°C
(19°F)		-5°C
(23°F)		-3°C
(28°F)		-1°C
(31°F)		4°C
(39°F)		10°C
(51°F)		18°C
(65°F)		17°C
(62°F)		11°C
(53°F)		5°C
(42°F)		-1°C
(31°F)		-2°C
(28°F)

Compare climate in Soja with other places

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

Monthly average precipitation in Soja, Japan

Soja usually has the most precipitation in July, August and September, with an average of 14 rainy days and 243 mm (9.6 inches) of precipitation per month. The driest months in Soja are January, November and December. On average, 38 mm (1.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Soja. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)35 (1.4)49 (1.9)98 (3.9)128 (5.0)115 (4.5)162 (6.4)313 (12.3)199 (7.8)217 (8.5)174 (6.8)32 (1.2)47 (1.9)
Average precipitation days (≥ 1 mm)551099121713121045

Monthly sunshine hours in Soja, Japan

The sunniest months in Soja are May, June and August, when the sun shines an average of 9 hours 35 minutes a day. Least sunny months in Soja: January, February and December receive an average of 6 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Soja. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours174225260280297284276300249239231209
Mean daily daylight hours10h 6m10h 55m11h 58m13h 3m13h 58m14h 25m14h 11m13h 24m12h 21m11h 17m10h 20m9h 51m

Solar UV radiation in Soja, Japan

Soja experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, November 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 Soja UV Index data.

Average daily maximum UV levels by month for Soja. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468101111121210754