The Ruapehu district has moved into a restricted fire season from 8am on Friday.
Fire and Emergency New Zealand's acting Whanganui-Manawatū district manager Aaron Summerhays said recent rain had not reduced the high fire risk for the region.
"A spike in vegetation fires and the current climate conditions have driven the change in seasons," Summerhays said.
"Fires could start and spread very easily if people aren't careful and follow our safety advice. If you have a fire permit, follow the conditions listed on your permit.
"If you see signs of smoke dial 111."