Yes

you do need a jacket based on the weather in Varna, Bulgaria 1 second ago

Why? Because it's pretty chilly.
54°F12°C & Mostly Clear

Wind is 2 mph4 km/h from the NW, gusting to 3 mph5 km/h
March 28
6pm54°F12°C3 mph4 km/h NWMostly Clear
7pm53°F12°C2 mph4 km/h NWPartly Cloudy
8pm53°F11°C3 mph4 km/h NWMostly Clear
9pm51°F11°C3 mph4 km/h WMostly Clear
10pm50°F10°C3 mph5 km/h WMostly Clear
11pm50°F10°C4 mph6 km/h WMostly Clear
March 29
12am50°F10°C4 mph7 km/h WMostly Clear
1am53°F12°C5 mph8 km/h WClear
2am57°F14°C6 mph10 km/h WClear
3am62°F17°C7 mph12 km/h WClear
4am66°F19°C9 mph15 km/h WMostly Clear
5am69°F21°C10 mph17 km/h WMostly Clear
DateLowHighWindDayNight
March 2747°F9°C70°F21°C8 mph13 km/h from SWMostly CloudyMostly Clear
March 2850°F10°C74°F24°C8 mph14 km/h from WClearPartly Cloudy
March 2951°F10°C68°F20°C6 mph10 km/h from SEMostly CloudyClear
March 3048°F9°C74°F23°C4 mph7 km/h from SMostly ClearMostly Clear
March 3155°F13°C77°F25°C5 mph8 km/h from SMostly ClearPartly Cloudy
April 155°F13°C74°F24°C11 mph18 km/h from WMostly CloudyMostly Cloudy
April 253°F11°C67°F20°C8 mph13 km/h from NWPartly CloudyMostly Clear

Yes

Low of 50°F10°C, High of 74°F24°C
Wind: 8 mph14 km/h
Precipitation: None

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