New Zealand is facing the prospect of one of the strongest El Niño events on record, with Earth Sciences New Zealand confirming that El Niño conditions have now been established and are expected to significantly shape the country’s weather through to 2027.
Scientists say warming sea surface temperatures across the central and eastern tropical Pacific have reached the threshold for an El Niño event and are continuing to strengthen. Current modelling suggests the event could rival, or even surpass, the most powerful El Niño episodes recorded in 1972, 1982, 1991, 1997 and 2015.
For New Zealand, El Niño typically brings stronger westerly winds, producing markedly different weather patterns across the country. Northern and eastern regions are expected to experience drier-than-normal conditions, while the western South Island is likely to see above-average rainfall.
The seasonal outlook indicates that Canterbury, Marlborough, eastern Otago, Wairarapa, Hawke’s Bay and Gisborne are among the regions most likely to become significantly drier as spring develops. Northland, Auckland, Bay of Plenty and Taranaki are also forecast to experience below-normal rainfall, while Southland and the lower West Coast can expect wetter conditions. Much of the country is also forecast to become windier from late winter into spring.
The forecast raises concerns for farmers, growers and rural communities. Reduced rainfall and persistent winds are expected to dry soils, reduce groundwater recharge and increase pressure on water supplies. Elevated temperatures combined with low humidity are also likely to heighten wildfire risk across many eastern and northern regions. An infographic included with the release identifies Canterbury, Marlborough, Wairarapa, Hawke’s Bay, Gisborne, Bay of Plenty and Northland as areas facing an increased wildfire threat.
Despite the long-term outlook, forecasters say the coming weeks will still bring periods of unsettled weather. A significant rain event is expected during the first part of July before the longer-term El Niño pattern becomes more dominant later in winter and into spring.
Scientists caution that while El Niño provides a strong indication of seasonal trends, it is not the only influence on New Zealand’s climate. Other factors, including ocean temperatures around New Zealand, the Indian Ocean Dipole, Antarctic weather systems and the effects of climate change, will also shape conditions over the months ahead.
For Māori communities, particularly those with strong connections to whenua and primary industries, the forecast will be closely watched. Dry conditions can affect farming, horticulture, forestry and customary food gathering, while increased wildfire risk and pressure on freshwater resources may also impact rural marae and communities.
Earth Sciences New Zealand says it will continue monitoring the evolving event and provide updated seasonal outlooks as the El Niño strengthens over the coming months.
#RadioWaatea #WaateaNews #ElNiño #Climate #Weather #ClimateChange #EarthSciencesNZ #MetService #WildfireRisk #Drought #Māori #Whenua #Agriculture #Aotearoa #Environment #SEO
