Yes

you do need a jacket based on the weather in Nagasaki, Japan 1 second ago

Why? Because sorry, it's too cool for just a hoodie!
55°F13°C & Partly Cloudy

Wind is 6 mph10 km/h from the Northeast, gusting to 7 mph12 km/h
November 3
5pm55°F13°C6 mph10 km/h NortheastMostly Cloudy
6pm55°F13°C6 mph9 km/h NortheastMostly Cloudy
7pm55°F13°C6 mph10 km/h NortheastMostly Cloudy
8pm54°F12°C6 mph10 km/h NortheastCloudy
9pm55°F13°C6 mph10 km/h NortheastCloudy
10pm55°F13°C6 mph10 km/h NortheastCloudy
11pm57°F14°C6 mph10 km/h NortheastCloudy
November 4
12am59°F15°C6 mph9 km/h NortheastCloudy
1am62°F17°C5 mph9 km/h NortheastCloudy
2am64°F18°C5 mph8 km/h NortheastCloudy
3am66°F19°C4 mph7 km/h NortheastCloudy
4am67°F20°C4 mph6 km/h NortheastCloudy
DateLowHighWindDayNight
November 354°F12°C68°F20°C4 mph7 km/h from NortheastCloudyCloudy
November 459°F15°C70°F21°C7 mph11 km/h from NortheastMostly CloudyMostly Clear
November 560°F16°C75°F24°C10 mph15 km/h from NortheastMostly ClearMostly Clear
November 659°F15°C72°F22°C9 mph14 km/h from NortheastPartly CloudyPartly Cloudy
November 759°F15°C72°F22°C5 mph8 km/h from EastPartly CloudyMostly Cloudy
November 866°F19°C73°F23°C10 mph17 km/h from SouthwestRainDrizzle
November 956°F14°C66°F19°C12 mph19 km/h from NorthMostly ClearClear

No

Low of 59°F15°C, High of 71°F22°C
Wind: 7 mph11 km/h
Precipitation: None

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