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 ...

Definitions of common terms. Alluvium: Loose, unconsolidated (not cemented together into a solid rock) soil or sediments which has been eroded, reshaped by water in some form, and re-deposited in a ...

Cy clone Pam’s furious flight path across the South Pacific in March this year illustrated the danger natural hazards pose to life, livelihoods and infrastructural development in the region. Science ...

Outlook Summary. A La Niña Watch remains in effect with a 60-70% chance that an event officially develops by December. La Niña-like patterns will favour more high pressure south of New Zealand over ...

Outlook summary: A La Niña Watch remains in effect, with a little over 50% chance that La Niña officially develops by the end of the year. However, this event is likely to be weak and short-lived and ...

Fiona Proffitt investigates the state of New Zealand's freshwater resources and the solutions science can offer As New Zealand tries to squeeze maximum value out of its natural resources, conflicts ...

Following La Niña-like atmospheric patterns near New Zealand during June, a La Niña Watch continues. There’s a 60-70% chance that La Niña will develop during spring. July is expected to feature mixed ...

Seasonal Climate Outlook for September - November 2024. Outlook Summary. The effect of a minor Sudden Stratospheric Warming (SSW) event in July-August is expected to contribute to lower than normal ...

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 ...

A New Zealand-led team has completed the fullest investigation to date into January’s eruption of the underwater Tongan volcano. Hunga-Tonga Hunga-Ha'apai (HT-HH) emitted the biggest atmospheric ...

Stories of tremendous forest fires, huge storm events, and suffocating heatwaves have dominated headlines over the past few years. We instinctively feel that our weather is getting wilder. Are we ...

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 ...