Yes

you do need a jacket based on the weather in Hobart TAS 7000, Australia 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Mostly Clear

Wind is 3 mph5 km/h from the Southeast, gusting to 7 mph11 km/h
May 1
4am53°F11°C3 mph5 km/h SoutheastClear
5am50°F10°C3 mph5 km/h SouthClear
6am48°F9°C4 mph7 km/h NorthwestClear
7am48°F9°C5 mph8 km/h NorthwestClear
8am46°F8°C5 mph7 km/h NorthwestClear
9am46°F8°C5 mph8 km/h NorthwestClear
10am46°F8°C7 mph11 km/h NorthwestClear
11am45°F7°C8 mph13 km/h NorthwestClear
12pm45°F7°C6 mph10 km/h NorthwestClear
1pm44°F7°C6 mph10 km/h NorthwestClear
2pm44°F7°C6 mph10 km/h NorthClear
3pm43°F6°C6 mph9 km/h NorthwestClear
DateLowHighWindDayNight
April 3043°F6°C56°F14°C5 mph9 km/h from NorthClearClear
May 143°F6°C61°F16°C6 mph10 km/h from NorthMostly CloudyMostly Cloudy
May 243°F6°C64°F18°C5 mph8 km/h from NorthwestMostly CloudyMostly Cloudy
May 349°F9°C66°F19°C8 mph13 km/h from NorthwestCloudyCloudy
May 456°F14°C68°F20°C12 mph19 km/h from NorthMostly CloudyMostly Cloudy
May 554°F12°C62°F17°C15 mph23 km/h from NorthwestPartly CloudyDrizzle
May 645°F7°C56°F13°C14 mph22 km/h from WestPartly CloudyDrizzle

Yes

Low of 43°F6°C, High of 61°F16°C
Wind: 6 mph10 km/h
Precipitation: None

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