Yes

you do need a jacket based on the weather in Kitakyushu Airport, 6 Kuko Kitamachi, Kokuraminami Ward, Kitakyushu, Fukuoka Prefecture 800-0306, Japan 1 second ago

Why? Because it's cool. Pleasantly cool, but cool.
54°F12°C & Mostly Clear

Wind is 8 mph13 km/h from the W, gusting to 16 mph25 km/h
March 28
7pm55°F13°C9 mph14 km/h WMostly Clear
8pm56°F14°C9 mph14 km/h WClear
9pm58°F14°C8 mph13 km/h SWClear
10pm60°F16°C7 mph11 km/h SWClear
11pm62°F16°C7 mph11 km/h SWClear
March 29
12am63°F17°C8 mph13 km/h SWClear
1am64°F18°C11 mph17 km/h SWClear
2am65°F18°C13 mph20 km/h SWClear
3am65°F18°C13 mph21 km/h SWClear
4am64°F18°C12 mph20 km/h SWClear
5am62°F17°C11 mph18 km/h SWClear
6am60°F16°C10 mph17 km/h SWClear
DateLowHighWindDayNight
March 2854°F12°C65°F18°C10 mph16 km/h from SWClearMostly Clear
March 2954°F12°C62°F17°C4 mph6 km/h from SEMostly CloudyPartly Cloudy
March 3053°F12°C63°F17°C5 mph8 km/h from NWMostly CloudyPartly Cloudy
March 3152°F11°C64°F18°C7 mph12 km/h from NWMostly ClearPartly Cloudy
April 151°F11°C60°F16°C6 mph10 km/h from ERainRain
April 252°F11°C57°F14°C11 mph18 km/h from ERainMostly Cloudy
April 352°F11°C57°F14°C12 mph19 km/h from NEMostly CloudyDrizzle

Yes

Low of 55°F13°C, High of 63°F17°C
Wind: 4 mph6 km/h
Precipitation: None

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