No

you don't need a jacket based on the weather in Iwakuni, Yamaguchi Prefecture, Japan 28 minutes ago

69°F20°C & Cloudy

Wind is 3 mph5 km/h from the East, gusting to 10 mph16 km/h
May 26
1am69°F21°C4 mph6 km/h EastCloudy
2am70°F21°C4 mph6 km/h EastCloudy
3am69°F21°C3 mph5 km/h EastCloudy
4am68°F20°C3 mph4 km/h EastCloudy
5am67°F20°C2 mph3 km/h EastCloudy
6am65°F18°C1 mph2 km/h EastCloudy
7am63°F17°C1 mph2 km/h NorthCloudy
8am61°F16°C3 mph4 km/h NorthCloudy
9am60°F15°C3 mph5 km/h NorthwestCloudy
10am58°F15°C3 mph5 km/h NorthwestCloudy
11am57°F14°C3 mph6 km/h NorthCloudy
12pm57°F14°C4 mph6 km/h NorthCloudy
DateLowHighWindDayNight
May 2553°F11°C70°F21°C3 mph4 km/h from EastCloudyCloudy
May 2656°F13°C74°F24°C4 mph6 km/h from SoutheastMostly ClearMostly Clear
May 2756°F13°C74°F23°C3 mph4 km/h from SoutheastCloudyCloudy
May 2860°F15°C72°F22°C4 mph6 km/h from EastDrizzleRain
May 2960°F15°C71°F22°C4 mph7 km/h from NortheastRainRain
May 3058°F14°C73°F23°C7 mph12 km/h from NorthDrizzleDrizzle
May 3157°F14°C76°F25°C3 mph5 km/h from NorthMostly ClearMostly Clear

Yes

Low of 56°F14°C, High of 74°F24°C
Wind: 4 mph6 km/h
Precipitation: None

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