34C is coming! Heatwave to hit Hawke's Bay as temps predicted over 30C four days in a row in Hastings

The Hawke's Bay heatwave is here.

Temperatures are set to hit thirties across the region for most of next week, with forecasts currently suggesting Hastings will reach 34C on Wednesday.

MetService meteorologist Tui McInnes said after what will be a warm weekend in the Bay the "trend is set to continue".

"It's clearly going to be hot," he said.

Saturday is expected to reach 28C in Hastings and will be fine with some fine light cloud in the evening for Six60's concert and the Bridge Pa Wine Festival.

Seeking shade on a hot day at Mitre 10 Park in Hastings. Photo / Paul Taylor

McInnes said Sunday will also follow suit.

"We're looking at temperatures on Sunday of potentially 30C in Hawke's Bay.

"It's a west to southwest wind over the North Island and what that means is the ranges to the west are blocking all the weather to Hawke's Bay, keeping it a lot clearer and warmer."

On Sunday both Napier and Hastings are set to hit 30C, Wairoa 29C and Waipukurau slightly cooler reaching a high of 26C.

McInnes said this is setting the region up for fine and hot days in the last week of the school holidays.

MetService is forecasting that Hastings will be reaching highs of 30C-plus from Monday through to Thursday.

"Hastings has the warmest January average out of all of the main centres in the country.

"Hawke's Bay in summer is warm so it's not unusual for temperatures to surpass 30C."

But, the meteorologist did say that 34C isn't a common occurrence for New Zealand and Kiwis are not as used to it as some other countries are.

McInnes said there is potential for rain relief towards the end of the week.

There have been only four days this January with enough rainfall that would fall into the category of a rainy day.

According to MetService, Napier has recorded just 13mm of rain this January, the lowest of any NZ city, whereas the average for the month at this time of year is 55mm.

"It's certainly tracking below average at the moment," McInnes said.

Napier and Hastings currently have level 2 water restrictions in place – with reduced watering, sprinkler and hose restrictions.

Sprinklers and hoses in Napier can be used 6am-8am and 7pm-9pm only as follows:

Even numbered houses on even days of the month and odd numbered houses on odd days of the month.

The restrictions in Napier have caused some residents to complain about neighbouring households who've been disobeying water use regulations.

There have been 16 complaints against 16 different addresses so far this summer made to the Napier City Council - whereas only one complaint has been made to the Hastings District Council.

No warnings or fines have been issued.