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Monthly climate in Osaka, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Osaka features a humid subtropical climate (Cfa).Temperatures typically range between 6 °C (42 °F) and 29 °C (85 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1611 mm (63.4 inches) and receives 124 rainy days on the 1 mm (0.04 inches) threshold annually.Osaka enjoys an average of 3015 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 Osaka, Japan §

The warmest months in Osaka are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (78 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 8 °C (42 - 47 °F) throughout the day. On average each year, Osaka experiences 119 days above 25 °C (77.0 °F) and 9 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Osaka, Japan.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 18°C
(64°F)		 20°C
(68°F)		 23°C
(73°F)		 26°C
(79°F)		 31°C
(88°F)		 32°C
(89°F)		 37°C
(99°F)		 38°C
(101°F)		 37°C
(99°F)		 33°C
(91°F)		 25°C
(78°F)		 22°C
(71°F)
Mean maximum 14°C
(58°F)		 16°C
(61°F)		 21°C
(70°F)		 25°C
(77°F)		 29°C
(85°F)		 31°C
(87°F)		 35°C
(96°F)		 37°C
(100°F)		 34°C
(93°F)		 30°C
(86°F)		 23°C
(74°F)		 18°C
(64°F)
Average high 9°C
(49°F)		 10°C
(50°F)		 15°C
(59°F)		 19°C
(67°F)		 24°C
(76°F)		 27°C
(82°F)		 31°C
(88°F)		 33°C
(92°F)		 29°C
(84°F)		 23°C
(74°F)		 18°C
(64°F)		 12°C
(54°F)
Daily mean 6°C
(42°F)		 6°C
(43°F)		 10°C
(51°F)		 15°C
(59°F)		 20°C
(69°F)		 24°C
(75°F)		 28°C
(82°F)		 29°C
(85°F)		 25°C
(78°F)		 20°C
(67°F)		 13°C
(56°F)		 8°C
(47°F)
Average low 2°C
(36°F)		 2°C
(37°F)		 6°C
(43°F)		 10°C
(51°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 26°C
(79°F)		 22°C
(72°F)		 16°C
(61°F)		 9°C
(49°F)		 4°C
(40°F)
Mean minimum -1°C
(30°F)		 -1°C
(30°F)		 1°C
(33°F)		 4°C
(40°F)		 10°C
(50°F)		 15°C
(60°F)		 22°C
(71°F)		 22°C
(72°F)		 16°C
(62°F)		 10°C
(49°F)		 4°C
(39°F)		 0°C
(32°F)
Minimum -3°C
(26°F)		 -3°C
(26°F)		 -1°C
(31°F)		 3°C
(37°F)		 8°C
(47°F)		 14°C
(58°F)		 20°C
(69°F)		 19°C
(66°F)		 15°C
(59°F)		 8°C
(46°F)		 2°C
(35°F)		 -1°C
(30°F)

Compare climate in Osaka with other places

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

Monthly average precipitation in Osaka, Japan §

Osaka usually has the most precipitation in July, August and October, with an average of 14 rainy days and 232 mm (9.1 inches) of precipitation per month.The driest months in Osaka are January, November and December. On average, 49 mm (1.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Osaka, Japan.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 46 (1.8) 60 (2.3) 109 (4.3) 135 (5.3) 150 (5.9) 147 (5.8) 282 (11.1) 183 (7.2) 169 (6.7) 230 (9.0) 44 (1.7) 57 (2.2)
Average precipitation days (≥ 1 mm) 6 6 11 10 10 12 18 12 15 12 6 6

Monthly sunshine hours in Osaka, Japan §

The sunniest months in Osaka are April, May and August, when the sun shines an average of 9 hours 30 minutes a day.Least sunny months in Osaka: January, February and December receive an average of 6 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Osaka, Japan.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 184 228 264 278 291 268 257 305 241 237 236 220
Mean daily daylight hours 10h 5m 10h 54m 11h 58m 13h 3m 13h 58m 14h 25m 14h 12m 13h 24m 12h 21m 11h 16m 10h 20m 9h 51m

Solar UV radiation in Osaka, Japan §

Osaka 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 Osaka UV Index data.

Average daily maximum UV levels by month for Osaka, Japan.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 4 6 8 11 11 11 12 11 10 7 5 3