Yes

you do need a jacket based on the weather in Managua, Nicaragua 4 seconds ago

Why? Because it's drizzling!
83°F28°C & Drizzle

Wind is 4 mph6 km/h from the South, gusting to 8 mph13 km/h
September 18
6pm82°F28°C4 mph7 km/h SouthDrizzle
7pm80°F27°C5 mph7 km/h SouthRain
8pm79°F26°C4 mph6 km/h SouthDrizzle
9pm78°F26°C3 mph6 km/h SouthDrizzle
10pm77°F25°C3 mph4 km/h SouthDrizzle
11pm77°F25°C3 mph4 km/h SouthDrizzle
September 19
12am76°F25°C2 mph4 km/h SouthDrizzle
1am76°F24°C2 mph4 km/h SouthDrizzle
2am75°F24°C2 mph4 km/h SouthDrizzle
3am74°F24°C2 mph3 km/h SouthDrizzle
4am74°F24°C2 mph3 km/h SouthDrizzle
5am74°F23°C1 mph2 km/h EastDrizzle
DateLowHighWindDayNight
September 1873°F23°C86°F30°C4 mph6 km/h from SoutheastRainDrizzle
September 1974°F23°C84°F29°C3 mph5 km/h from SouthwestRainDrizzle
September 2074°F23°C87°F30°C3 mph5 km/h from SoutheastThunderstormsRain
September 2174°F23°C87°F30°C5 mph9 km/h from SoutheastThunderstormsThunderstorms
September 2274°F23°C87°F31°C5 mph9 km/h from EastThunderstormsThunderstorms
September 2375°F24°C86°F30°C7 mph12 km/h from EastThunderstormsThunderstorms
September 2476°F24°C87°F31°C10 mph16 km/h from EastPartly CloudyMostly Clear

No

Low of 74°F24°C, High of 84°F29°C
Wind: 3 mph5 km/h
Precipitation: 66% rain

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