Climate

Latest news

Novel handwriting recognition project casts new light on historic weather data.
Across the North Island, soil moisture levels increased in many places during the past week. In the South Island, soil moisture levels generally decreased in the east and a slightly increased in the west.
Expect to hear a lot more about climate change in the news in the weeks ahead – and a lot about NIWA’s work underpinning the science that is signalling a warmer world right now and its effects in the future.
NIWA meteorologists are keeping an eye on an unusual atmospheric phenomenon that is amassing in the polar stratosphere.

Our work

NIWA is leading a New Zealand partnership to map the South and West Pacific Ocean's seabed as part of a worldwide initiative to map the entire globe’s seafloor.
Does climate change affect the position of the Subtropical Front around New Zealand? This has important consequences for New Zealand's climate and biological productivity.

Latest videos

Annual Climate Summary for 2018

New Zealand’s equal-2nd warmest year on record. Annual temperatures were above average across the majority of New Zealand, including much of the North Island as well as the western and southern South Island. See complete 2018 Annual Climate Summary details.

Weather Tips - What is El Niño?

El Niño. We hear it being brought up in the news quite a bit, but what does it actually mean? No, it's not a type of yoghurt!

SOUTHERN - LONG  - v2
NIWA climate scientists are calling for volunteers to unearth weather secrets from the past – including those recorded by members of Captain Robert Scott’s doomed trip to the South Pole in 1912.
Today’s low came spinning off the coast of Hawke’s Bay funneling strong winds through the Cook Strait and hitting Wellington region with strong winds before moving on to Taranaki and Auckland this afternoon.

Global setting: June 2017

The tropical Pacific remained in an ENSO (El Niño – Southern Oscillation) neutral state (neither El Niño nor La Niña) during June 2017, but oceanic and atmospheric anomalies were mixed, with some indicators leaning towards El Niño and others towards La Niña.
Now the first six months of the year are done and dusted, NIWA forecasters have been analysing the country’s weather statistics to see where we stand compared to last year’s record breaker.
This year’s winter solstice may start mild, but by the end of the shortest day of the year on Wednesday there will be rain, wind and even some snow.

In the 2010 NIWA Report on the seven-station temperature series (Mullan et al., 2010), two alternatives were offered for the adjustment at January 1945 between the records for Hokitika Town and Hokitika Southside. An offset of -0.52°C (a negative value meaning the new site is colder) was calculated by comparing the changes at Hokitika from 1935-1944 to 1945-1954 with those at four comparison sites. An offset of ‑0.68°C was calculated from a direct comparison between the two Hokitika records from the overlap of 30 months for August 1943 to January 1946.

In April and May 2016, the Martinborough EWS (agent 21938)1 experienced some technical difficulties, and a number of 9 am observations were missing
El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand, however its effects can be significant.

NIWA provides a free climate information e-newsletter. Sign up to receive our 3 month outlooks, global climate perspective and climate summary.

Northern New Zealand
Kaitaia, Whangarei, Auckland, Tauranga

This is a sub-tropical climate zone, with warm humid summers and mild winters. Typical summer daytime maximum air temperatures range from 22°C to 26°C, but seldom exceed 30°C. Winter daytime maximum air temperatures range from 12°C to 17°C. Annual sunshine hours average about 2000 in many areas. Tauranga is much sunnier with at least 2200 hours. SW winds prevail for much of the year. Sea breezes often occur on warm summer days. Winter usually has more rain and is the most unsettled time of year.

Find information about New Zealand's temperature record and climate change in our information and resources section.
Hottest, coldest, wettest, driest, sunniest, windiest...find out here which places hold the record for climate extremes in New Zealand
NIWA produces a range of climate-related data. You can see some of it below, as well as related activities.

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Principal Scientist - Atmosphere and Climate
Principal Scientist - Climate

All staff working on this subject

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Coastal and Estuarine Physical Processes Scientist
Principal Scientist - Atmosphere and Climate
Principal Scientist - Climate
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Principal Scientist - Marine Physics
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Physical Oceanographer
Chief Scientist - Climate, Atmosphere and Hazards
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