Yes

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

Why? Because Jack Frost is nipping at your nose!
26°F-3°C & Mostly Clear

Wind is 3 mph5 km/h from the Northwest, gusting to 7 mph12 km/h
January 24
3pm26°F-3°C4 mph6 km/h NorthwestPartly Cloudy
4pm26°F-4°C4 mph6 km/h NorthwestPartly Cloudy
5pm26°F-3°C4 mph6 km/h NorthwestPartly Cloudy
6pm27°F-3°C4 mph6 km/h NorthwestPartly Cloudy
7pm30°F-1°C4 mph7 km/h NorthwestPartly Cloudy
8pm32°F-0°C5 mph8 km/h NorthwestMostly Clear
9pm34°F1°C6 mph10 km/h NorthwestMostly Clear
10pm36°F2°C6 mph10 km/h NorthwestMostly Clear
11pm37°F3°C7 mph11 km/h NorthClear
January 25
12am37°F3°C7 mph11 km/h NorthClear
1am36°F2°C7 mph12 km/h NorthMostly Clear
2am35°F2°C6 mph10 km/h NorthClear
DateLowHighWindDayNight
January 2425°F-4°C37°F3°C5 mph9 km/h from NorthwestMostly ClearMostly Clear
January 2524°F-4°C37°F3°C5 mph8 km/h from NorthwestMostly ClearMostly Clear
January 2623°F-5°C41°F5°C5 mph8 km/h from SouthwestCloudySnow
January 2726°F-3°C41°F5°C8 mph13 km/h from SouthwestMostly ClearMostly Clear
January 2824°F-4°C34°F1°C13 mph21 km/h from SouthwestPartly CloudyPartly Cloudy
January 2923°F-5°C36°F2°C8 mph13 km/h from WestPartly CloudyMostly Clear
January 3024°F-5°C41°F5°C4 mph7 km/h from WestMostly ClearMostly Cloudy

Yes

Low of 25°F-4°C, High of 37°F3°C
Wind: 5 mph8 km/h
Precipitation: None

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