Yes

you do need a jacket based on the weather in Barishal, Bangladesh 1 second ago

Why? Because a little drizzle out!
79°F26°C & Drizzle

Wind is 6 mph10 km/h from the South, gusting to 15 mph24 km/h
June 27
9pm79°F26°C7 mph11 km/h SouthDrizzle
10pm81°F27°C7 mph12 km/h SouthDrizzle
11pm83°F28°C8 mph12 km/h SouthDrizzle
June 28
12am84°F29°C8 mph13 km/h SouthDrizzle
1am85°F30°C8 mph13 km/h SouthDrizzle
2am87°F30°C8 mph13 km/h SouthDrizzle
3am87°F31°C8 mph14 km/h SouthDrizzle
4am87°F31°C9 mph14 km/h SouthCloudy
5am87°F31°C9 mph15 km/h SouthCloudy
6am86°F30°C9 mph15 km/h SouthRain
7am85°F30°C9 mph14 km/h SouthPartly Cloudy
8am84°F29°C8 mph13 km/h SouthPartly Cloudy
DateLowHighWindDayNight
June 2778°F25°C87°F31°C8 mph13 km/h from SouthRainDrizzle
June 2878°F25°C88°F31°C7 mph12 km/h from SoutheastRainDrizzle
June 2978°F26°C88°F31°C12 mph19 km/h from SoutheastDrizzleDrizzle
June 3079°F26°C87°F30°C12 mph19 km/h from SoutheastRainDrizzle
July 178°F26°C87°F30°C12 mph19 km/h from SoutheastRainRain
July 278°F26°C87°F30°C9 mph14 km/h from SouthThunderstormsRain
July 378°F25°C87°F31°C7 mph12 km/h from SouthRainThunderstorms

No

Low of 78°F26°C, High of 88°F31°C
Wind: 7 mph12 km/h
Precipitation: 75% rain

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