Clarke added: "Wednesday is looking fine, with some light winds and sea breezes. We are looking at 26 degrees for Wednesday for Napier."
Temperatures will continue to rise on Thursday and Friday, with Napier expecting 27 and 28 degrees respectively, according to Clarke.
"It'll be 27 degrees on Thursday and 28 degrees on Friday - so slowly warming up," she said.
"Generally, it is set to be fairly dry and warm across the week as we head into the first part of 2020."
As the New Year celebrations come to an end across Hawke's Bay, temperatures will begin to fall over the weekend, with the possibility of isolated showers in parts of the region.
"A southerly change on Saturday and Sunday means it'll be a little bit cooler over the weekend across the region," Clarke said.
"We are looking at 22 degrees on Saturday and 26 degrees on Sunday in Napier."