Overview of New Zealand's climate - NIWA
In New Zealand generally there are relatively small variations between summer and winter temperatures, although inland and to the east of the ranges the variation is greater (up to …
Climate change and possible impacts for New Zealand | NIWA
Hotter temperatures and heatwaves may bring health issues for vulnerable groups, particularly the elderly and babies, as well as outdoor workers. A warming climate may increase the likelihood …
Tide Forecaster - NIWA
NIWA's Tide forecaster provides tidal data for any point in New Zealand. Use this utility to forecast high and low tides anywhere in open coastal and ocean waters around New Zealand for up to …
Today's UV Index - NIWA
UV and Ozone. Today's UV Index. Measured in Auckland (Leigh Marine Observatory), Paraparaumu, Christchurch, Lauder, Invercargill. Click on the thumbnail to see a larger version …
NIWA Tides
Tide Forecaster. Use this utility to forecast high and low tides anywhere in coastal and ocean waters around New Zealand’s EEZ for up to 28 days 1 month.
NIWA Weather
Overnight and morning rainfall in Fiordland and the West Coast was exceptional, even by the standards of this very wet region! Franz Josef is having their wettest day (9am-9am period) …
Extreme coastal flood maps for Aotearoa New Zealand | NIWA
This Extreme coastal flood map dataset comprises 21 coastal flooding scenarios representing relative sea-level rise ranging from 0 to 2 metres in 10 cm (0.1 m) increments. According to the …
Seasonal Climate Outlook - NIWA
Seasonal Climate Outlook for November 2023 - January 2024. El Niño continued during October and will likely intensify over the next three months. It has around a 100% chance of persisting …
High Intensity Rainfall Design System (HIRDS) - NIWA
HIRDSv4 Usage. NIWA's High Intensity Rainfall Design System (HIRDS) offers planners and engineers more certainty about the frequency of high-intensity rainfall events, enabling them to …
Climate change scenarios for New Zealand - NIWA
The SSP scenarios start in 2015, and are abbreviated as SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0 and SSP5-8.5, in the order of increasing greenhouse gas emissions. The SSPs represent …