Yes

you do need a jacket based on the weather in Kambah ACT 2902, Australia 1 second ago

Why? Because it's cold. simple as that.
39°F4°C & Partly Cloudy

Wind is 2 mph4 km/h from the S, gusting to 6 mph10 km/h
May 25
12pm38°F3°C3 mph5 km/h SPartly Cloudy
1pm37°F3°C3 mph5 km/h SMostly Clear
2pm37°F3°C3 mph5 km/h SPartly Cloudy
3pm37°F3°C3 mph5 km/h SMostly Clear
4pm35°F2°C3 mph5 km/h SMostly Clear
5pm35°F2°C3 mph5 km/h SMostly Clear
6pm38°F3°C3 mph5 km/h SMostly Clear
7pm44°F7°C2 mph3 km/h SClear
8pm50°F10°C1 mph1 km/h NEClear
9pm54°F12°C2 mph3 km/h NClear
10pm58°F14°C3 mph5 km/h NClear
11pm60°F15°C4 mph7 km/h NClear
DateLowHighWindDayNight
May 2535°F1°C62°F17°C3 mph5 km/h from NClearMostly Clear
May 2634°F1°C61°F16°C2 mph3 km/h from NClearClear
May 2733°F1°C63°F17°C2 mph4 km/h from NClearClear
May 2834°F1°C64°F18°C4 mph7 km/h from NClearPartly Cloudy
May 2941°F5°C61°F16°C6 mph10 km/h from NWRainRain
May 3040°F4°C59°F15°C9 mph14 km/h from NWDrizzleMostly Clear
May 3135°F2°C58°F14°C2 mph4 km/h from EMostly ClearClear

Yes

Low of 34°F1°C, High of 61°F16°C
Wind: 2 mph3 km/h
Precipitation: None

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