The Illawarra's sunny spring weather was put on hold yesterday as a cold snap hit the region bringing widespread rain and dangerous surf conditions.
According to readings taken from the Bellambi weather station yesterday, it was 5.30am when the mercury peaked at an unseasonably crisp 16.5 degrees - almost four degrees below the September mean maximum.
Steady, light showers produced about 8 millimetres of rain across parts of the region by 4pm, with rain due to continue into the evening and overnight.
At Wollongong's City Beach, a 1.5 to 2-metre southerly swell brought out surfers in the rain.
The bureau forecasts a 2-3 metre easterly swell today, and has warned of dangerous surf conditions, with rougher conditions presenting a hazard for rock fishers and those crossing bars by boat.
Warmer, 23-degree temperatures are forecast for the next three days.