Yes

you do need a jacket based on the weather in Trieste, UTI Giuliana, Italy 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
44°F7°C & Clear

Wind is 5 mph8 km/h from the East, gusting to 9 mph15 km/h
October 28
6am45°F7°C5 mph9 km/h EastClear
7am48°F9°C4 mph7 km/h EastClear
8am53°F12°C3 mph5 km/h EastClear
9am57°F14°C2 mph3 km/h SouthClear
10am59°F15°C3 mph5 km/h SouthwestClear
11am60°F16°C4 mph7 km/h WestClear
12pm61°F16°C4 mph7 km/h WestMostly Clear
1pm61°F16°C4 mph7 km/h WestMostly Clear
2pm61°F16°C3 mph5 km/h WestPartly Cloudy
3pm60°F15°C2 mph4 km/h WestPartly Cloudy
4pm57°F14°C2 mph3 km/h WestPartly Cloudy
5pm56°F13°C2 mph3 km/h SoutheastMostly Clear
DateLowHighWindDayNight
October 2744°F7°C61°F16°C3 mph5 km/h from SouthwestMostly ClearPartly Cloudy
October 2852°F11°C63°F17°C6 mph9 km/h from SouthwestDrizzleRain
October 2957°F14°C62°F17°C6 mph9 km/h from SouthRainDrizzle
October 3059°F15°C64°F18°C3 mph5 km/h from SouthRainCloudy
October 3159°F15°C63°F17°C4 mph7 km/h from SouthwestCloudyRain
November 159°F15°C64°F18°C9 mph15 km/h from SouthRainRain
November 249°F9°C61°F16°C8 mph13 km/h from EastRainPartly Cloudy

Yes

Low of 52°F11°C, High of 63°F17°C
Wind: 6 mph9 km/h
Precipitation: 31% rain

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