Driving in October

Driving in October

I will driving from Christchurch to Te Anau via Dunedin then to Milford Sound before going to Queenstown and back to Christchurch via Lake Tekapo. This trip will be from 1/10/10 till 7/10/10. Would it still be winter road conditions and if so do i need chains for the tyres? I come from the tropics so would appreciate any tips on how to prepare for winter driving. Thank you.

Question about Drive New Zealand's South Island