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Brief Forecast for all New Zealand
Valid to Midnight Tuesday, 19-May
Northland
Cloudy periods and a few showers, especially in the east, where some may be heavy.
Auckland, Coromandel Peninsula, Bay of Plenty and Taupo
Mainly fine. A few showers about northern parts of Auckland and Coromandel Peninsula.
Waikato to Wellington, including Taumarunui and Taihape
Fine, apart from some cloudy areas and valley fog morning and evening.
Gisborne to Wairarapa
Mostly cloudy. Showers about Gisborne and Hawke's Bay, clearing Hawke's Bay tomorrow morning and Gisborne in the afternoon. Gradually becoming fine south of Napier tomorrow.
For all of the South Island
Mainly fine with morning frosts. Areas of cloud or fog, mainly about the coast and inland valleys, morning and night, but persisting all day in Central Otago. A few showers developing about Fiordland tomorrow afternoon.
Chatham Islands
Fine spells and a few light showers.
Outlook for following three days
Wednesday
North Island: Partly cloudy north of Auckland, with isolated showers. Fine elsewhere.
South Island: Morning cloud or fog in Canterbury, otherwise mainly fine. However, a few showers in Fiordland, spreading to southern Westland later.
Thursday
North Island: Mainly fine north of Auckland with isolated showers clearing. Fine elsewhere, apart from areas of morning cloud or fog.
South Island: Mostly cloudy with occasional rain in Westland, Southland and Fiordland, and isolated showers in Grey and Buller. Mainly fine elsewhere, with increasing high cloud.
Friday
North Island: Cloudy periods in the north with isolated showers. Fine elsewhere, apart from areas of fog morning and night.
South Island: Cloudy periods in the west with showers in Fiordland and Westland. Mainly fine elsewhere.
Chatham Islands
Mostly cloudy. The odd light shower clearing Wednesday, then becoming fine on Thursday. Cloudy periods on Friday. Southwesterlies, turning northwesterly on Thursday.
Issued: 1:33pm Monday 18 May 2026