Latest FromNiwa
![La Nina heatwave sweeps the country](/pf/resources/images/placeholders/placeholder_l.png?d=792)
La Nina heatwave sweeps the country
New Zealand is in for a long, hot summer as La Nina hits our shores, says the National Institute of Water and Atmospheric Research (Niwa).
![Antarctic ozone hole smallest in five years](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Antarctic ozone hole smallest in five years
Surprising new data from Niwa about the ozone layer above the southernmost continent.
![Antarctic team shows NZ's edge](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Antarctic team shows NZ's edge
NZ's Antarctic research is a microcosm of how the country's scientific future should unfold, says Sir Peter Gluckman.
![Mosquito weather predicted next month](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Mosquito weather predicted next month
Weather in the North Island is expected to remain clear and dry till the end of the month - but be prepared for a muggy summer.
![Fish stocks on rise - but there's a catch](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Fish stocks on rise - but there's a catch
New Zealand is braving an international backlash by going after fish species environmentalists say are unsustainably caught. Geoff Cumming reports.
![NZ set for warmer than usual weather - NIWA](/pf/resources/images/placeholders/placeholder_l.png?d=792)
NZ set for warmer than usual weather - NIWA
NIWA's latest seasonal outlook predicts temperatures in all regions are likely to be above average from October to December.
![<i>Anthony Doesburg</i>: Wet or dry? Super computer has the forecast](/pf/resources/images/placeholders/placeholder_l.png?d=792)
<i>Anthony Doesburg</i>: Wet or dry? Super computer has the forecast
Niwa is hoping its new $12.7m computer will yield more accurate rainfall predictions.
![Niwa challenged over accuracy of data](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Niwa challenged over accuracy of data
The state-owned weather and atmospheric research body is being taken to court over the accuracy of data used to calculate global warming.
![Our taonga beneath the sea](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Our taonga beneath the sea
The good news from the first Census of Marine Life is: New Zealand's waters are indeed teeming with wondrous creatures and plants.
![Holiday weather set to turn ugly - analysts](/pf/resources/images/placeholders/placeholder_l.png?d=792)
Holiday weather set to turn ugly - analysts
Heavy rain may ruin Queen's Birthday for North Islanders with another big low barrelling out of the north Tasman Sea.
![May 200 per cent wetter for some - NIWA](/pf/resources/images/placeholders/placeholder_l.png?d=792)
May 200 per cent wetter for some - NIWA
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.