No, you’re not imagining it. Flu season is late and cases are up

News Business Opinion In Depth Events Quiz Donate Subscribe Life in South Australia SALife Adelaide Guide & Events Citymag Arts News & Reviews InReview Best SA Homes Premium Property News Business Opinion In Depth Events Quiz Donate Subscribe In Depth No, you’re not imagining it. Flu season is late and cases are up T D The New Daily Sep 23, 2026, updated Sep 23, 2026 Australia's flu cases were up in early September, at a time when they're usually falling. The weather is warming up and the hay fever season has begun, but more people are experiencing cases of influenza than expected for spring.

In the two weeks to September 6, flu cases were up 27 per cent on the previous two weeks. And case numbers are rising.