Story: Climate

Wind and air pressure during El Niño and La Niña

Wind and air pressure during El Niño and La Niña

These maps show the pattern of air pressure and wind direction during El Niño and La Niña phases of the Southern Oscillation. During the El Niño phase, pressures are high (H) to the north. Strong south-westerly winds bring drought to the north-east of the country. When La Niña is operating, there are high pressures over the South Island. These bring north-easterlies and rain to the north and east of the North Island.

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NIWA – National Institute of Water and Atmospheric Research

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How to cite this page:

Brett Mullan, Andrew Tait and Craig Thompson, 'Climate - New Zealand and global climate patterns', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/diagram/7784/wind-and-air-pressure-during-el-nino-and-la-nina (accessed 6 December 2019)

Story by Brett Mullan, Andrew Tait and Craig Thompson, published 12 Jun 2006