Adelaide is experiencing a run of early-season heat not seen since 2019 as a pool of hot air and blustery winds spreads over South Australia.

While large areas of South Australia had an unseasonably cold start to spring, the heat has returned across the state this week.

Temperatures have soared to the mid-to-high thirties in parts of SA every day so far this week, with some places climbing 10 to 13ºC above average for this time of year.

The hottest place in the state on Tuesday was Nullarbor, which rocketed past its November average maximum temperature of 26ºC and hit 39.3ºC in the afternoon.

Even Adelaide has managed to climb above 30ºC on each of the last three days, comfortably reaching more than 5ºC above the city’s November average maximum of 24.5ºC. This is the first Adelaide has had three days over 30ºC this early in spring since 2019.

Image: Modelled maximum 2-metre air temperature on Wednesday, November 9, according to the ECMWF-HRES model.

This week’s burst of early-season heat has also elevated fire danger ratings in some parts of the state as the heat combines with blustery northerly winds ahead of an approaching low pressure trough. An Extreme Fire Weather Warning is in place for the Eastern Eyre Peninsula on Wednesday.

A few showers and thunderstorms are also forming with the passage of the trough, aided by an abundance of warm and moist air in the low levels of the atmosphere. As of 2:30pm ACDT a severe thunderstorm warning was in place for damaging wind gusts in the Lower Eyre Peninsula and parts of West Coast, Eastern Eyre Peninsula, North West Pastoral and North East Pastoral districts.

Cooler west-to-southwesterly winds will sweep over South Australia during the next 24 hours, reaching Adelaide overnight. The city should only reach the mid-twenties on Thursday in the wake of this change.