Metservice meteorologist Karl Loots said the week looked like it would stay warm, with northerly winds.
Today would have some morning cloud which would become fine and warm, with temperatures expected to reach the mid to high 20s.
Tomorrow would also be fine around the coastal areas, with some northerly winds picking up.
Cloudy periods might mar the first day of the festival, with northerlies getting stronger. Despite this, the day is expected to reach a high of 28C.
Strong winds were expected to continue into Thursday, with cloud cover and scattered rain expected about the region.
Mr Loots said there was no indication this would be heavy rainfall.
Friday was expected to have cloudy spots of rain in the morning, which would continue into the afternoon, but clear in time for evening festivities.
Winds would turn northwesterly during the day, cooling down the day's high of 27C.
- Make sure you pack your parasol for the Tremains Art Deco Festival from Wednesday, February 17 to Sunday, February 21. For tickets go to artdeconapier.com.