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Monthly climate in Miyoshi, Japan

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Miyoshi features a humid subtropical climate (Cfa). Temperatures typically range between 3 °C (38 °F) and 27 °C (80 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1816 mm (71.5 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually. Miyoshi enjoys an average of 3111 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 26 minutes per day.

Monthly average temperatures in Miyoshi, Japan

The warmest months in Miyoshi are July, August and September, with daily mean temperatures ranging from 22 to 27 °C (72 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 5 °C (38 - 41 °F) throughout the day. On average each year, Miyoshi experiences 91 days above 25 °C (77.0 °F) and 49 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Miyoshi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(56°F)		21°C
(70°F)		23°C
(73°F)		26°C
(80°F)		30°C
(87°F)		31°C
(88°F)		35°C
(95°F)		35°C
(96°F)		33°C
(91°F)		29°C
(85°F)		23°C
(74°F)		19°C
(67°F)
Mean maximum12°C
(54°F)		15°C
(59°F)		20°C
(69°F)		25°C
(77°F)		29°C
(84°F)		29°C
(84°F)		33°C
(92°F)		35°C
(95°F)		31°C
(89°F)		28°C
(82°F)		21°C
(70°F)		15°C
(59°F)
Average high7°C
(45°F)		8°C
(47°F)		14°C
(57°F)		18°C
(65°F)		23°C
(73°F)		25°C
(78°F)		29°C
(84°F)		31°C
(88°F)		26°C
(79°F)		21°C
(70°F)		16°C
(60°F)		9°C
(49°F)
Daily mean3°C
(38°F)		4°C
(39°F)		8°C
(47°F)		13°C
(55°F)		18°C
(64°F)		21°C
(70°F)		25°C
(77°F)		27°C
(80°F)		22°C
(72°F)		16°C
(62°F)		10°C
(51°F)		5°C
(41°F)
Average low-0°C
(32°F)		-0°C
(32°F)		3°C
(38°F)		7°C
(45°F)		13°C
(55°F)		17°C
(62°F)		22°C
(72°F)		23°C
(73°F)		18°C
(65°F)		12°C
(54°F)		5°C
(42°F)		1°C
(35°F)
Mean minimum-5°C
(23°F)		-5°C
(24°F)		-2°C
(29°F)		-0°C
(32°F)		6°C
(43°F)		12°C
(54°F)		19°C
(66°F)		18°C
(65°F)		12°C
(54°F)		5°C
(41°F)		-1°C
(30°F)		-2°C
(28°F)
Minimum-12°C
(11°F)		-8°C
(18°F)		-3°C
(28°F)		-2°C
(28°F)		4°C
(39°F)		9°C
(49°F)		17°C
(62°F)		16°C
(61°F)		11°C
(52°F)		4°C
(39°F)		-2°C
(29°F)		-2°C
(28°F)

Compare climate in Miyoshi with other places

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

Monthly average precipitation in Miyoshi, Japan

Miyoshi usually has the most precipitation in July, August and September, with an average of 15 rainy days and 292 mm (11.5 inches) of precipitation per month. The driest months in Miyoshi are January, February and November. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Miyoshi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)61 (2.4)67 (2.6)116 (4.5)123 (4.9)115 (4.5)188 (7.4)389 (15.3)257 (10.1)230 (9.1)159 (6.3)40 (1.6)69 (2.7)
Average precipitation days (≥ 1 mm)1111129101519131310613

Monthly sunshine hours in Miyoshi, Japan

The sunniest months in Miyoshi are May, June and August, when the sun shines an average of 9 hours 55 minutes a day. Least sunny months in Miyoshi: January, February and December receive an average of 6 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Miyoshi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours179226264283305298285309258253233214
Mean daily daylight hours10h 5m10h 54m11h 58m13h 3m13h 58m14h 26m14h 12m13h 24m12h 21m11h 16m10h 20m9h 51m

Solar UV radiation in Miyoshi, Japan

Miyoshi experiences the highest level of ultraviolet (UV) radiation in April, 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 Miyoshi UV Index data.

Average daily maximum UV levels by month for Miyoshi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)468111111121210754