Yes

you do need a jacket based on the weather in Melbourne VIC, Australia 1 second ago

Why? Because it's pretty chilly!
55°F13°C & Mostly Cloudy

Wind is 8 mph13 km/h from the Northwest, gusting to 18 mph29 km/h
September 20
6am55°F13°C8 mph13 km/h NorthwestMostly Cloudy
7am54°F12°C9 mph14 km/h NorthwestMostly Cloudy
8am54°F12°C8 mph13 km/h NorthwestMostly Cloudy
9am53°F12°C9 mph14 km/h NorthwestMostly Cloudy
10am53°F12°C9 mph15 km/h NorthwestMostly Cloudy
11am53°F12°C9 mph14 km/h NorthwestMostly Cloudy
12pm53°F11°C9 mph14 km/h NorthwestMostly Cloudy
1pm52°F11°C8 mph13 km/h NorthwestMostly Cloudy
2pm52°F11°C9 mph14 km/h NorthwestMostly Cloudy
3pm53°F11°C8 mph13 km/h NorthwestMostly Cloudy
4pm53°F11°C8 mph13 km/h NorthwestMostly Cloudy
5pm53°F12°C9 mph14 km/h NorthwestMostly Cloudy
DateLowHighWindDayNight
September 1947°F8°C59°F15°C10 mph16 km/h from WestMostly CloudyMostly Cloudy
September 2050°F10°C63°F17°C11 mph18 km/h from WestDrizzlePartly Cloudy
September 2146°F8°C58°F14°C11 mph18 km/h from SouthwestDrizzlePartly Cloudy
September 2245°F7°C63°F17°C7 mph11 km/h from SouthwestMostly CloudyCloudy
September 2351°F10°C63°F17°C9 mph14 km/h from WestMostly CloudyMostly Cloudy
September 2449°F10°C62°F17°C10 mph15 km/h from WestDrizzleCloudy
September 2552°F11°C70°F21°C14 mph22 km/h from NorthwestMostly CloudyMostly Cloudy

Yes

Low of 50°F10°C, High of 64°F18°C
Wind: 11 mph18 km/h
Precipitation: 51% rain

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