New Zealand Climate Update 230 - August 2018

What happened in July, how our climate outlook for the previous three months turned out, global and local sea temperatures, and our outlook for August-October.

13 September 2018

What happened in July, how our climate outlook for the previous three months turned out, global and local sea temperatures, and our outlook for August-October.

New Zealand Climate Update

In this issue

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    Current climate: July 2018

    Mean sea level pressure was below normal to the southwest of New Zealand and above normal to the east and north of the country.

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    Global setting: July 2018

    ENSO-neutral conditions continued across the tropical Pacific during July 2018. The Southern Oscillation Index (SOI) was in the neutral range, with a preliminary value of +0.2 for July 2018.

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    Outlook: August-October 2018

    August – October 2018 temperatures are forecast to be near average (40% chance) in the North Island. For all regions of the South Island, seasonal temperatures are expected to be above average (40%) or near average (35% chance).

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    Retrospective: May-July 2018 Outlook

    For May-July, the atmospheric circulation around New Zealand was forecast to be characterised by lower than normal atmospheric pressure through to July.