The Far South Coast will be experiencing extreme and severe heat wave conditions over the next few days.
The Bureau of Meteorology says the Far South Coast will be experiencing extreme and severe heat wave conditions over the next few days.
Senior forecaster Jake Phillips says temperatures are ten to 15 degrees above average for this time of year.
He says extreme hot weather patterns that used to be just occasional are becoming more frequent.
"We're in for a run of very hot days...basically we're looking at temperatures over the next few days generally ten to 15 degrees above the average for this time of year, so it's quite unusually warm for this time of year and even overnight we're not going to get much relief."
He says while there may be a "couple of showers" on Sunday or Monday they will be "hit and miss", while a "weakish southerly change will take the edge of the extreme heat".
"More typically we get these prolonged hot spells in January or February, so having these in December is a little bit unusual. We will be monitoring the situation to see if any records are broken. The trend is toward more of these hot and dry spells during summer and that's a pattern we've seen over the last few years with increasing frequency.
"What we've seen increasingly over the last few years is these sorts of situations occurring more often than they used to, and we're breaking more records on a reasonably regular basis in recent years, whereas in times gone by every now and then we would see a record, so things have definitely shifted."
Meanwhile NSW Health is reminding residents to drink plenty of water, use sunscreen and to stay in the shade where possible.