Yes

you do need a jacket based on the weather in Cranbourne East VIC 3977, Australia 1 second ago

Why? Because it's not very warm out!
56°F13°C & Cloudy

Wind is 3 mph5 km/h from the Northwest, gusting to 7 mph11 km/h
July 20
2am55°F13°C3 mph4 km/h NorthMostly Cloudy
3am52°F11°C3 mph5 km/h EastCloudy
4am49°F10°C4 mph6 km/h NortheastMostly Cloudy
5am48°F9°C4 mph7 km/h NortheastMostly Cloudy
6am45°F7°C4 mph6 km/h NortheastMostly Cloudy
7am44°F7°C4 mph6 km/h NortheastMostly Cloudy
8am42°F6°C4 mph6 km/h NortheastMostly Clear
9am41°F5°C4 mph6 km/h NortheastMostly Clear
10am40°F4°C4 mph6 km/h NortheastMostly Clear
11am39°F4°C4 mph7 km/h NortheastMostly Clear
12pm39°F4°C4 mph7 km/h NortheastClear
1pm38°F3°C4 mph7 km/h NortheastClear
DateLowHighWindDayNight
July 1940°F4°C58°F15°C3 mph4 km/h from NorthMostly CloudyPartly Cloudy
July 2038°F3°C59°F15°C8 mph13 km/h from NorthPartly CloudyMostly Cloudy
July 2145°F7°C56°F14°C15 mph24 km/h from NorthDrizzleMostly Clear
July 2242°F5°C55°F13°C8 mph12 km/h from NorthwestDrizzleMostly Clear
July 2339°F4°C58°F15°C6 mph9 km/h from NorthMostly ClearMostly Cloudy
July 2437°F3°C57°F14°C5 mph7 km/h from NortheastCloudyDrizzle
July 2547°F9°C55°F13°C12 mph19 km/h from NorthDrizzleThunderstorms

Yes

Low of 37°F3°C, High of 59°F15°C
Wind: 8 mph13 km/h
Precipitation: None

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