No

you don't need a jacket based on the weather in Osaka, Osaka Prefecture, Japan 1 second ago

75°F24°C & Mostly Cloudy

Wind is 7 mph11 km/h from the Northeast, gusting to 15 mph24 km/h
October 15
10am74°F24°C7 mph12 km/h NortheastPartly Cloudy
11am73°F23°C7 mph11 km/h EastPartly Cloudy
12pm72°F22°C6 mph10 km/h NortheastMostly Cloudy
1pm72°F22°C5 mph9 km/h NortheastCloudy
2pm72°F22°C5 mph8 km/h NortheastMostly Cloudy
3pm72°F22°C5 mph8 km/h NortheastCloudy
4pm72°F22°C5 mph8 km/h NortheastMostly Cloudy
5pm71°F22°C6 mph9 km/h NortheastPartly Cloudy
6pm71°F22°C6 mph9 km/h NortheastMostly Cloudy
7pm71°F21°C5 mph9 km/h NortheastMostly Cloudy
8pm70°F21°C4 mph7 km/h NortheastDrizzle
9pm70°F21°C4 mph6 km/h NortheastDrizzle
DateLowHighWindDayNight
October 1471°F22°C81°F27°C6 mph10 km/h from NortheastPartly CloudyDrizzle
October 1570°F21°C80°F27°C4 mph7 km/h from WestRainRain
October 1665°F19°C81°F27°C4 mph6 km/h from NortheastMostly ClearMostly Clear
October 1766°F19°C80°F27°C4 mph7 km/h from SouthwestRainRain
October 1864°F18°C73°F23°C7 mph11 km/h from NorthMostly CloudyCloudy
October 1962°F16°C73°F23°C4 mph7 km/h from NorthMostly CloudyDrizzle
October 2061°F16°C69°F21°C6 mph10 km/h from NorthDrizzleDrizzle

No

Low of 70°F21°C, High of 80°F27°C
Wind: 4 mph7 km/h
Precipitation: 89% rain

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