nomadseason

Monthly climate in Daisen, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Daisen features a humid subtropical climate (Cfa). Temperatures typically range between -1 °C (30 °F) and 24 °C (76 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1761 mm (69.3 inches) and receives 204 rainy days on the 1 mm (0.04 inches) threshold annually. Daisen enjoys an average of 2871 hours of sunshine throughout the year, and daylight varies from 9 hours 25 minutes to 14 hours 53 minutes per day.

Monthly average temperatures in Daisen, Japan

The warmest months in Daisen are July, August and September, with daily mean temperatures ranging from 20 to 24 °C (68 - 76 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 35 °F) throughout the day. On average each year, Daisen experiences 58 days above 25 °C (77.0 °F) and 92 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Daisen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(44°F)		10°C
(51°F)		19°C
(67°F)		24°C
(75°F)		30°C
(86°F)		30°C
(86°F)		33°C
(92°F)		35°C
(96°F)		33°C
(92°F)		27°C
(81°F)		22°C
(71°F)		14°C
(58°F)
Mean maximum6°C
(43°F)		9°C
(48°F)		17°C
(62°F)		22°C
(71°F)		27°C
(80°F)		26°C
(80°F)		32°C
(90°F)		33°C
(92°F)		29°C
(85°F)		25°C
(77°F)		19°C
(66°F)		11°C
(52°F)
Average high2°C
(35°F)		3°C
(37°F)		9°C
(48°F)		14°C
(57°F)		20°C
(68°F)		23°C
(74°F)		27°C
(81°F)		28°C
(83°F)		24°C
(76°F)		18°C
(65°F)		11°C
(53°F)		4°C
(40°F)
Daily mean-1°C
(30°F)		-1°C
(31°F)		4°C
(40°F)		9°C
(48°F)		15°C
(59°F)		19°C
(66°F)		23°C
(74°F)		24°C
(76°F)		20°C
(68°F)		14°C
(57°F)		8°C
(46°F)		1°C
(35°F)
Average low-5°C
(24°F)		-4°C
(25°F)		0°C
(33°F)		4°C
(39°F)		10°C
(51°F)		15°C
(59°F)		20°C
(68°F)		21°C
(70°F)		16°C
(62°F)		10°C
(50°F)		4°C
(39°F)		-1°C
(30°F)
Mean minimum-12°C
(11°F)		-12°C
(11°F)		-6°C
(21°F)		-2°C
(29°F)		4°C
(40°F)		10°C
(50°F)		16°C
(60°F)		16°C
(61°F)		9°C
(49°F)		3°C
(38°F)		-3°C
(28°F)		-7°C
(19°F)
Minimum-16°C
(4°F)		-16°C
(3°F)		-10°C
(14°F)		-5°C
(24°F)		3°C
(37°F)		6°C
(43°F)		15°C
(58°F)		13°C
(56°F)		6°C
(43°F)		3°C
(37°F)		-7°C
(20°F)		-9°C
(17°F)

Compare climate in Daisen with other places

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

Monthly average precipitation in Daisen, Japan

Daisen usually has the most precipitation in July, August and October, with an average of 15 rainy days and 187 mm (7.3 inches) of precipitation per month. The driest months in Daisen are January, February and March. On average, 120 mm (4.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Daisen. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)108 (4.2)127 (5.0)125 (4.9)141 (5.6)135 (5.3)147 (5.8)191 (7.5)210 (8.2)133 (5.2)159 (6.3)127 (5.0)157 (6.2)
Average precipitation days (≥ 1 mm)192117171513171614131725

Monthly sunshine hours in Daisen, Japan

The sunniest months in Daisen are May, July and August, when the sun shines an average of 9 hours 27 minutes a day. Least sunny months in Daisen: January, February and December receive an average of 5 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Daisen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours150194246268295281290293255220196179
Mean daily daylight hours9h 43m10h 41m11h 57m13h 14m14h 20m14h 53m14h 36m13h 39m12h 25m11h 8m10h 0m9h 25m

Solar UV radiation in Daisen, Japan

Daisen experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 4. For more detailed information, check out our hourly Daisen UV Index data.

Average daily maximum UV levels by month for Daisen. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)346891010119643