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Monthly climate in Yonago, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Yonago features a humid subtropical climate (Cfa). Temperatures typically range between 7 °C (45 °F) and 27 °C (81 °F) through the year, but rarely can drop to -1 °C (30 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 1919 mm (75.6 inches) and receives 178 rainy days on the 1 mm (0.04 inches) threshold annually. Yonago enjoys an average of 3007 hours of sunshine throughout the year, and daylight varies from 9 hours 47 minutes to 14 hours 30 minutes per day.

Monthly average temperatures in Yonago, Japan

The warmest months in Yonago are July, August and September, with daily mean temperatures ranging from 24 to 27 °C (75 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (45 - 49 °F) throughout the day. On average each year, Yonago experiences 60 days above 25 °C (77.0 °F) and 1 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Yonago. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum16°C
(61°F)		17°C
(63°F)		18°C
(65°F)		22°C
(72°F)		24°C
(75°F)		27°C
(81°F)		30°C
(87°F)		33°C
(91°F)		32°C
(89°F)		29°C
(84°F)		23°C
(74°F)		21°C
(70°F)
Mean maximum13°C
(56°F)		14°C
(57°F)		17°C
(63°F)		20°C
(68°F)		23°C
(74°F)		25°C
(77°F)		29°C
(85°F)		32°C
(89°F)		30°C
(86°F)		26°C
(80°F)		21°C
(70°F)		17°C
(62°F)
Average high8°C
(47°F)		9°C
(48°F)		12°C
(53°F)		15°C
(59°F)		19°C
(67°F)		22°C
(72°F)		26°C
(80°F)		28°C
(83°F)		25°C
(77°F)		20°C
(69°F)		16°C
(61°F)		11°C
(52°F)
Daily mean7°C
(45°F)		7°C
(45°F)		10°C
(50°F)		13°C
(56°F)		18°C
(64°F)		21°C
(70°F)		25°C
(78°F)		27°C
(81°F)		24°C
(75°F)		19°C
(67°F)		14°C
(58°F)		9°C
(49°F)
Average low6°C
(42°F)		5°C
(41°F)		8°C
(47°F)		11°C
(53°F)		16°C
(61°F)		20°C
(67°F)		24°C
(76°F)		26°C
(79°F)		23°C
(73°F)		18°C
(64°F)		13°C
(55°F)		8°C
(46°F)
Mean minimum1°C
(35°F)		1°C
(34°F)		4°C
(40°F)		7°C
(44°F)		12°C
(54°F)		16°C
(62°F)		21°C
(70°F)		23°C
(74°F)		19°C
(67°F)		14°C
(57°F)		8°C
(47°F)		3°C
(37°F)
Minimum-1°C
(30°F)		-1°C
(30°F)		3°C
(38°F)		6°C
(42°F)		11°C
(52°F)		14°C
(58°F)		20°C
(69°F)		22°C
(72°F)		19°C
(66°F)		13°C
(56°F)		7°C
(46°F)		1°C
(35°F)

Compare climate in Yonago with other places

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

Monthly average precipitation in Yonago, Japan

Yonago usually has the most precipitation in July, August and September, with an average of 14 rainy days and 218 mm (8.6 inches) of precipitation per month. The driest months in Yonago are April, May and November. On average, 100 mm (3.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Yonago. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)157 (6.2)141 (5.6)137 (5.4)123 (4.8)97 (3.8)166 (6.5)237 (9.3)210 (8.3)207 (8.1)178 (7.0)80 (3.2)185 (7.3)
Average precipitation days (≥ 1 mm)201713121013161216141322

Monthly sunshine hours in Yonago, Japan

The sunniest months in Yonago are May, June and August, when the sun shines an average of 9 hours 48 minutes a day. Least sunny months in Yonago: January, February and December receive an average of 6 hours 15 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Yonago. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours163207255281302296282303253239223198
Mean daily daylight hours10h 2m10h 52m11h 58m13h 5m14h 1m14h 30m14h 16m13h 26m12h 22m11h 15m10h 17m9h 47m

Solar UV radiation in Yonago, Japan

Yonago experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, 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 Yonago UV Index data.

Average daily maximum UV levels by month for Yonago. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)457101011121110753