Yes

you do need a jacket based on the weather in Christchurch, New Zealand 1 second ago

Why? Because it's quite chilly!
43°F6°C & Mostly Cloudy

Wind is 1 mph2 km/h from the Northwest, gusting to 4 mph6 km/h
September 11
9am42°F5°C2 mph3 km/h NorthwestMostly Cloudy
10am41°F5°C1 mph2 km/h WestMostly Cloudy
11am40°F5°C1 mph2 km/h NorthwestMostly Cloudy
12pm39°F4°C1 mph2 km/h NorthwestPartly Cloudy
1pm38°F4°C2 mph2 km/h WestMostly Cloudy
2pm38°F3°C1 mph1 km/h SouthwestMostly Cloudy
3pm39°F4°C1 mph2 km/h NorthwestPartly Cloudy
4pm42°F5°C2 mph3 km/h NorthPartly Cloudy
5pm45°F7°C2 mph3 km/h NortheastPartly Cloudy
6pm49°F10°C4 mph7 km/h NortheastMostly Cloudy
7pm53°F12°C7 mph11 km/h NortheastMostly Cloudy
8pm55°F13°C8 mph13 km/h NortheastPartly Cloudy
DateLowHighWindDayNight
September 1138°F3°C58°F14°C8 mph13 km/h from EastPartly CloudyPartly Cloudy
September 1242°F5°C59°F15°C15 mph24 km/h from SouthwestWindyMostly Cloudy
September 1342°F5°C55°F13°C10 mph16 km/h from SouthwestPartly CloudyMostly Clear
September 1440°F4°C65°F18°C6 mph9 km/h from NorthwestMostly ClearPartly Cloudy
September 1551°F11°C62°F16°C8 mph13 km/h from NortheastDrizzleMostly Cloudy
September 1651°F11°C68°F20°C14 mph23 km/h from NorthMostly CloudyPartly Cloudy
September 1746°F8°C62°F17°C7 mph11 km/h from WestDrizzleMostly Clear

Yes

Low of 42°F6°C, High of 59°F15°C
Wind: 15 mph24 km/h
Precipitation: 29% rain

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