3 Apr 2015

El Nino brings warmer autumn

9:53 am on 3 April 2015

Autumn is shaping up to be warmer, drier and windier than usual.

Research institute NIWA has released its seasonal forecast for April to June, which shows El Nino weather patterns for the country.

Twilight autumn/winter Tekapo.

Photo: 123RF

El Nino conditions usually bring stronger winds, and more rain on the country's west coast, and less on the east coast.

Coastal waters are expected to be slightly warmer than average.

As autumn progresses, cold snaps and frosts can still be expected from time to time in some parts of the country.

Soil moisture levels and river flows are expected to be below average.

NIWA forecaster Chris Brandolino said above average temperatures were likely in the north and the east of the North Island.

"So there may be a few more days at the beach perhaps, especially early on in autumn, perhaps a lower utility bill.

"In terms of rainfall, we think normal or below normal is the most likely outcome for the north and east of the North Island, as well as the east of the South Island."

Regional autumn forecasts:

  • Northland, Auckland, Waikato, Bay of Plenty:

There's a good chance temperatures are above average, and rainfall below average. Soil moisture likely to be below average.

  • Central North Island, Taranaki, Wanganui, Manawatu, Wellington:

A good chance temperatures are above average, slight chance rainfall is above average. River flows more likely to be below average.

  • Gisborne, Hawke's Bay, Wairarapa:

Temperatures likely to be above average, rainfall below average. River flows likely to be below average.

  • Nelson, Marlborough, Buller:

Temperatures likely to be above average, slight chance rainfall is above average. Soil moisture likely to be below average.

  • West Coast, Alps and foothills, inland Otago, Southland:

A fair chance temperatures are above average, rainfall also above average. Soil moisture likely to be below average.

  • Coastal Canterbury, east Otago:

A good chance temperatures are above average and rainfall below average. A good chance soil moisture is below average.