Neutral El Niño – Southern Oscillation (ENSO) conditions remain present in the tropical Pacific. Residual signals indicative of weak La Niña conditions persist, and occasional La Niña-like atmospheric ...

Disclaimer: The forecasts offered in this page draw upon modified Copernicus Climate Change Service Information [2022] (C3S, https://climate.Copernicus.eu).There is inherent uncertainty in forecasting ...

Rainfall Rainfall was below normal (50-79% of normal) or well below normal (<50% of normal) for much of the country. Rainfall was above normal (120-149% of normal) or well above normal (>149% of ...

Impact Assessment Tool map view of results with all layers enabled. The planning and recovery tool provides scenario and probabilistic model frameworks for risk assessment of cyclone-related hazards ...

Tropical cyclone outlook summary for New Zealand. On average, at least one ex-TC passes within 550 km of New Zealand each year. This season, the risk is considered normal-elevated.; If an ex-TC tracks ...

NIWA is pleased with the announcement today by the Science, Innovation and Technology Minister of the Government’s response to a recent review of New Zealand’s weather forecasting system.. The ...

Scientists have found a new ghost shark that lives exclusively in the deep waters of Australia and New Zealand. The Australasian Narrow-nosed Spookfish was described by NIWA Fisheries Scientist Dr ...

Cyclone Gabrielle formed in the Coral Sea and struck the northeast of Aotearoa New Zealand as an ex-tropical cyclone in February 2023. During the event, rainfall totals reached nearly 450 mm, which is ...

Changes in marine heatwave number of days/year (late-early). b) change in windstress and MSLP (late-early), with zonal-average changes. Under future scenarios, global climate models predict that this ...

NIWA scientists have mapped the whole of Lake Wānaka in incredible detail. They have done the work to better understand its underwater structure and potential for earthquakes and tsunamis, after an ...

A new study from NIWA has mapped outdoor air quality for Invercargill and Alexandra in more detail than ever before. Researchers found that outdoor air in the most polluted locations contained three ...