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 14°C). Temperatures also drop about 0.7°C for every 100 m of altitude. Sunshine hours are relatively high in areas that are sheltered from the west and most of New ...
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 of tropical diseases, such as dengue fever and malaria, reaching New Zealand. New Zealand is currently too cold for most of the mosquitoes and ticks that ...
NIWA Weather
NIWA Weather. @NiwaWeather · 15 hours ago. 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) since 1979, and Lake Moeraki is having their wettest day on records to 1985.
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 Ministry for the Environment, 1.0 m of sea-level rise can be expected by the end of this century, or even sooner in places where land is subsiding.
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 during this time. There’s an 80% chance of El Niño continuing through autumn, maintaining an important influence on Aotearoa New Zealand’s climate.
Home | NIWA
Who we are. Taihoro Nukurangi. From the bottom of the ocean to the top of the atmosphere and everything in between: NIWA's climate, freshwater and marine science helps develop solutions to the world's environmental problems and enhance the economic value and sustainable management of New Zealand’s aquatic resources and environments.
Layers of the atmosphere - NIWA
The different layers of the atmosphere. The atmosphere can be divided into layers based on its temperature, as shown in the figure below. These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere. A further region, beginning about 500 km above the Earth's surface, is called the exosphere.
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 better design stormwater drainage, flood defence systems and other vital structures. HIRDS is a simple online tool that can estimate the magnitude and frequency ...
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 of each of these graphs. Time series of these UV data are available at no cost from the NIWA Climate database.
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 31 days. It also predicts historical tides back to 1830. This current version does not cover tides inside harbours and estuaries – just the entrances ...