Niwa is hoping its new $12.7m computer will yield more accurate rainfall predictions.

The state-owned weather and atmospheric research body is being taken to court over the accuracy of data used to calculate global warming.

The good news from the first Census of Marine Life is: New Zealand's waters are indeed teeming with wondrous creatures and plants.

Heavy rain may ruin Queen's Birthday for North Islanders with another big low barrelling out of the north Tasman Sea.

May was a stormy month, with more lows over the Tasman Sea and higher pressures east of the Chatham Islands whipping up more wind and rain.

Is there a massive government conspiracy developing in the skies over New Zealand?

Kiwis not yet ready for winter's chill can relax - Niwa has forecasted a warm end to autumn.

A Niwa climate scientist says 56mm of rain has fallen so far this year, the lowest of any three-month period in Auckland.

Auckland is coming through a record dry patch - only 5mm of rain fell in February, the least since records began in 1959.

Autumn is set to bring warm, dry weather for the north of the country - with Aucklanders enjoying an Indian summer.

I was watching a fascinating documentary the other day about Easter Island.