Yes

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

Why? Because it's not very warm out!
51°F10°C & Cloudy

Wind is 1 mph2 km/h from the West, gusting to 4 mph7 km/h
January 30
1pm51°F10°C1 mph2 km/h WestPartly Cloudy
2pm53°F12°C1 mph2 km/h WestMostly Clear
3pm55°F13°C1 mph2 km/h NorthMostly Clear
4pm58°F14°C2 mph3 km/h NorthMostly Clear
5pm60°F16°C2 mph3 km/h NortheastMostly Clear
6pm63°F17°C2 mph4 km/h NortheastMostly Clear
7pm65°F18°C2 mph4 km/h NortheastMostly Clear
8pm67°F19°C3 mph4 km/h NortheastMostly Clear
9pm68°F20°C3 mph4 km/h NortheastMostly Clear
10pm69°F21°C2 mph4 km/h NortheastMostly Clear
11pm70°F21°C3 mph4 km/h NortheastPartly Cloudy
January 31
12am70°F21°C2 mph4 km/h NortheastPartly Cloudy
DateLowHighWindDayNight
January 3051°F10°C70°F21°C2 mph3 km/h from NortheastMostly ClearMostly Clear
January 3151°F11°C70°F21°C3 mph5 km/h from NorthwestMostly CloudyPartly Cloudy
February 152°F11°C71°F22°C2 mph4 km/h from SoutheastPartly CloudyPartly Cloudy
February 253°F12°C75°F24°C3 mph5 km/h from WestClearClear
February 353°F12°C76°F24°C2 mph3 km/h from EastMostly ClearClear
February 454°F12°C75°F24°C5 mph8 km/h from NorthMostly ClearPartly Cloudy
February 551°F11°C63°F17°C7 mph11 km/h from NorthDrizzleDrizzle

Yes

Low of 52°F11°C, High of 70°F21°C
Wind: 3 mph5 km/h
Precipitation: None

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