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 Recreational Marine: Auckland Marine Weather Situation and Forecast issued at 2030hrs Wednesday 16-Apr-2025 by MetService Gale warning for Hauraki Gulf and Waitemata Harbour Storm warning for Bream Head to Cape Colville Strong wind advisory for Manukau Harbour Situation: Cyclone Tam is expected to move southwards into the Tasman Sea tonight. Strong northeasterly winds, reaching severe gale with gusts to 120 km/h, and heavy rain are expected for parts of the upper North Island tonight and tomorrow. Meanwhile, a ridge moves eastwards off the South Island. Cyclone Tam continues to move slowly southwards over the Tasman Sea on Good Friday and during the weekend. A moist northeasterly flow associated with the cyclone covers New Zealand during most of the period, but southeasterlies develop over the southern South Island on Sunday. Forecast issued at 1628hrs Wednesday 16-Apr-2025 Valid to 8 pm Wednesday for Manukau and Waitemata Harbours, Hauraki Gulf and Bream Head to Cape Colville. For Manukau Harbour: Wednesday: Easterly 20 knots gusting 30 knots, rising to easterly 25 knots gusting 40 knots this evening. Sea becoming rough this evening. Poor visibility in periods of rain. For the west coast - Southwest swell 1.5 metres easing to 1 metre. Thursday: Easterly 25 knots gusting 35 knots, rising to 30 knots gusting 40 knots in the morning. Sea rough. Poor visibility in rain, heavy at times. For west coast - Southwest swell 1 metre easing. Friday: Northeast 20 knots. Rain, easing. For west coast - Westerly swell 1 metre developing. Saturday: Northerly 15 knots. Becoming fine. For west coast - Westerly swell rising to 2 metres. Sunday: Northeast 15 knots. Occasional rain. For west coast - Westerly swell 2 metres. For Waitemata Harbour: Wednesday: Easterly 30 knots gusting 40 knots. Sea rough. Poor visibility in periods of rain. Thursday: Easterly 30 knots gusting 40 knots, rising to 35 knots gusting 45 knots east of North Head for a time in the afternoon. Sea becoming very rough in the east in the afternoon. Poor visibility in rain, heavy at times. Friday: Northeast 25 knots. Rain, easing. Saturday: Northerly 20 knots. Showers, clearing. Sunday: Northerly 15 knots. Showers. For Hauraki Gulf: Wednesday: Easterly 35 knots gusting 50 knots. Sea very rough. Poor visibility in periods of rain. Northeast swell 1 metre rising to 2.5 metres. Thursday: Easterly 35 knots gusting 50 knots, rising to 40 knots gusting 55 knots for a time in the morning and afternoon. Sea very rough. Poor visibility in rain, heavy at times. Northeast swell 2.5 metres, rising to 3 metres. Friday: Northeast 30 knots, easing to 20 knots in the morning. Rain, turning to showers. Northeast swell 1 metre. Saturday: Northerly 20 knots. Showers, clearing. Northeast swell 1 metre dying out. Sunday: Northerly 20 knots. Showers, clearing. Northeast swell 1 metre developing. For Bream Head to Cape Colville: Wednesday: Easterly 40 knots gusting 50 knots but 50 knots gusting 60 knots about Colville Channel. Rising to easterly 45 knots gusting 55 knots but 50 knots gusting 65 knots about Colville Channel this evening. Sea high about Colville Channel, then everywhere this evening. Poor visibility in rain, possibly heavy. Northeast swell 2.5 metres rising to 3.5 metres. Thursday: Easterly 45 knots gusting 55 knots but 50 knots gusting 65 knots about Colville Channel. Rising to easterly 50 knots gusting 70 knots everywhere for a time late morning and afternoon. Easing to northeast 40 knots gusting 50 knots but 50 knots gusting 60 knots about the Channel late evening. High sea. Heavy rain, with poor visibility at times. Thunderstorms possible from evening. Northeast swell 3.5 metres, rising to 4.5 metres. Friday: Northeast 35 knots, easing to 20 knots in the morning. Showers. Northeast swell 3 metres easing. Saturday: Northerly 20 knots. Showers, clearing. Northeast swell 2 metres easing. Sunday: Northerly 20 knots, easing to 10 knots late. A few showers. Northeast swell rising to 2 metres. High tide at Auckland: High tide at Onehunga: Article © 2025 Metservice, Funded by the NZ Government Data is for information only. New Zealand City disclaims all liability or responsibility for any loss or damage that may result from the action or failure to act by any person in reliance on any information provided herein. |
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