Aurora light up the night sky across New Zealand

An aurora has dazzled South Islanders tonight and is expected to be visible across large parts of New Zealand in the coming hours.

South Islanders have already reportedly witnessed the light show, while some North Islanders were also said to be experiencing the spectacle.

The National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Centre predicted the phenomenon was expected to be seen in New Zealand overnight.

Predicting the exact timing and intensity was difficult, NOAA said, but it had the potential to become a "significant geomagnetic storm", though not on par with the May 2024 event.

The sun is currently at the peak of its 11-year activity cycle when there are more solar storms, aurorae and sunspots.

Astronomer Rob Davison told 1News in May last year that there were a few key things to remember for anyone hoping to catch a glimpse of an aurora.

"Increased solar activity improves the chances of a good auroral display, but it does not guarantee it," he said.

"Aurorae can also peak and then disappear in a relatively short amount of time.

"Getting as far south and as far away from light pollution as possible will improve your chances.

"People should also remember to wrap up warm, as they may need to be outside for some time while their eyes adjust to the dark and while they wait for the peak of any display to appear."