No

you don't need a jacket based on the weather in Sydney NSW, Australia 2 minutes ago

62°F17°C & Clear

Wind is 3 mph5 km/h from the Southeast, gusting to 8 mph13 km/h
July 14
2am62°F17°C3 mph6 km/h SoutheastClear
3am60°F16°C5 mph7 km/h EastClear
4am58°F14°C4 mph7 km/h EastClear
5am57°F14°C4 mph6 km/h NortheastClear
6am56°F13°C3 mph5 km/h NortheastClear
7am54°F12°C3 mph5 km/h NorthwestMostly Clear
8am52°F11°C4 mph7 km/h WestMostly Clear
9am50°F10°C5 mph8 km/h WestMostly Clear
10am48°F9°C5 mph8 km/h WestClear
11am46°F8°C6 mph9 km/h WestMostly Clear
12pm45°F7°C6 mph10 km/h WestPartly Cloudy
1pm44°F7°C7 mph10 km/h WestMostly Cloudy
DateLowHighWindDayNight
July 1348°F9°C64°F18°C6 mph9 km/h from SouthwestClearPartly Cloudy
July 1443°F6°C57°F14°C9 mph14 km/h from WestCloudyClear
July 1544°F7°C63°F17°C6 mph10 km/h from WestClearPartly Cloudy
July 1643°F6°C61°F16°C5 mph8 km/h from WestMostly CloudyClear
July 1745°F7°C59°F15°C9 mph14 km/h from SouthDrizzleClear
July 1843°F6°C62°F17°C6 mph10 km/h from NorthClearClear
July 1943°F6°C63°F17°C6 mph9 km/h from WestPartly CloudyPartly Cloudy

Yes

Low of 44°F7°C, High of 57°F14°C
Wind: 9 mph14 km/h
Precipitation: None

Support This Page