"You've had some warmer nights than that recently, so it's not right at the peak, but it's certainly some warm and humid overnight weather. You're going to have the same things when you're falling asleep trying to combat that sticky, hot atmosphere," he said.
Hines said Saturday should see a maximum of 30C in Napier and an overnight minimum of 21C, while Hastings should see a maximum of 30C and an overnight minimum of 19C.
He said a southerly on Sunday afternoon should see less humidity, but more persistent rain would hit the region.
He said it looked as if fine weather would return by the middle of next week.
