Fire crews are dealing with a fire on Wellington's Tinakori Hill.

Witnesses say the blaze has broken out in a forest area on the city's green belt, about 100 metres from neighbouring homes.

Local resident Paula is in Wadestown and said "it's tinder dry. She told Newstalk ZB flames can be seen, and it is quite big.

"The wind is blowing it away towards the trees and away from the houses, but there are a lot of trees there."