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Monthly climate in Osaka-sayama, Ōsaka, Japan

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Osaka-sayama 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 -4 °C (26 °F) or can rise to as high as 39 °C (103 °F).The average annual precipitation amounts to about 1604 mm (63.1 inches) and receives 126 rainy days on the 1 mm (0.04 inches) threshold annually.Osaka-sayama enjoys an average of 3063 hours of sunshine throughout the year, and daylight varies from 9 hours 52 minutes to 14 hours 24 minutes per day.

Monthly average temperatures in Osaka-sayama, Ōsaka, Japan §

The warmest months in Osaka-sayama are July, August and September, with daily mean temperatures ranging from 25 to 29 °C (77 - 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-sayama experiences 120 days above 25 °C (77.0 °F) and 15 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-sayama, Ōsaka, 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
(65°F)		 20°C
(69°F)		 23°C
(73°F)		 26°C
(79°F)		 31°C
(89°F)		 32°C
(90°F)		 37°C
(99°F)		 39°C
(103°F)		 37°C
(99°F)		 31°C
(88°F)		 25°C
(78°F)		 22°C
(73°F)
Mean maximum 15°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
(95°F)		 38°C
(101°F)		 34°C
(94°F)		 30°C
(85°F)		 23°C
(74°F)		 18°C
(65°F)
Average high 9°C
(49°F)		 10°C
(51°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
(68°F)		 23°C
(74°F)		 27°C
(82°F)		 29°C
(85°F)		 25°C
(77°F)		 19°C
(67°F)		 13°C
(56°F)		 8°C
(47°F)
Average low 2°C
(36°F)		 2°C
(36°F)		 6°C
(42°F)		 10°C
(50°F)		 15°C
(60°F)		 19°C
(67°F)		 24°C
(76°F)		 26°C
(79°F)		 22°C
(71°F)		 15°C
(60°F)		 9°C
(48°F)		 4°C
(39°F)
Mean minimum -2°C
(29°F)		 -2°C
(29°F)		 -0°C
(32°F)		 3°C
(38°F)		 8°C
(47°F)		 15°C
(58°F)		 21°C
(71°F)		 22°C
(72°F)		 15°C
(60°F)		 9°C
(49°F)		 3°C
(37°F)		 -0°C
(32°F)
Minimum -4°C
(26°F)		 -3°C
(26°F)		 -1°C
(31°F)		 2°C
(36°F)		 6°C
(43°F)		 13°C
(56°F)		 20°C
(69°F)		 19°C
(66°F)		 13°C
(56°F)		 7°C
(45°F)		 0°C
(33°F)		 -1°C
(31°F)

Compare climate in Osaka-sayama with other places

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

Monthly average precipitation in Osaka-sayama, Ōsaka, Japan §

Osaka-sayama usually has the most precipitation in June, July and October, with an average of 14 rainy days and 225 mm (8.8 inches) of precipitation per month.The driest months in Osaka-sayama are January, November and December. On average, 54 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Osaka-sayama, Ōsaka, 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) 53 (2.1) 65 (2.6) 110 (4.3) 122 (4.8) 146 (5.7) 166 (6.5) 270 (10.6) 160 (6.3) 164 (6.5) 238 (9.4) 48 (1.9) 62 (2.5)
Average precipitation days (≥ 1 mm) 8 7 10 10 10 12 18 12 14 12 6 7

Monthly sunshine hours in Osaka-sayama, Ōsaka, Japan §

The sunniest months in Osaka-sayama are April, May and August, when the sun shines an average of 9 hours 38 minutes a day.Least sunny months in Osaka-sayama: January, February and December receive an average of 7 hours 7 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Osaka-sayama, Ōsaka, 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 188 233 267 282 293 269 263 311 246 240 239 225
Mean daily daylight hours 10h 6m 10h 55m 11h 58m 13h 2m 13h 57m 14h 24m 14h 11m 13h 23m 12h 21m 11h 17m 10h 21m 9h 52m

Solar UV radiation in Osaka-sayama, Ōsaka, Japan §

Osaka-sayama 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, February and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Osaka-sayama UV Index data.

Average daily maximum UV levels by month for Osaka-sayama, Ōsaka, 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 12 10 7 6 4