The sight of a soaring temperature gauge is not always a happy sight - it certainly turns the heat up for one Whangarei business owner.
If you are suffering in this heat, spare a thought for Patrick Kalin, owner-operator of Total Homes Insulation.
To him a warm weather forecast means he has a small window of time to crawl around in 40C heat in roof spaces before his workplace turns into an oven.
Mr Kalin could spend up to two hours working on insulating a roof and said he had to make sure he was out of them by 12pm.
"You have to get out before it gets too hot. It has happened only a handful of times. I've had to stay up there to finish a job, and it gets to about 45 to 50C - that heat is just a no-go."