Coastal Forecasts

Plenty

Warning: Nil

Friday: Northerly 15 knots, rising to 25 knots in the afternoon. Sea becoming rough. Northeast swell rising to 2 metres. Poor visibility in late rain.

Saturday: Northerly 25 knots, becoming westerly 15 knots in the morning. Rough sea easing. Moderate northeast swell.

Sunday: Westerly 15 knots, rising to southwest 25 knots early. Sea becoming rough. Moderate northeast swell dying out. Moderate northwest swell developing.

Monday: Southwest 25 knots, easing to southerly 15 knots early, then to variable 10 knots later. Rough sea easing. Moderate northwest swell dying out.

Issued: 11:21pm Thursday 7 May 2026

Colville

Warning: Nil

Friday: Northeast 20 knots, changing northwest 25 knots in the evening. Sea becoming rough. Northeast swell 2 metres. Poor visibility in rain from evening.

Saturday: Northerly 25 knots, becoming westerly 15 knots in the morning. Rough sea easing. Moderate northeast swell.

Sunday: Westerly 15 knots, rising to southwest 25 knots early. Sea becoming rough. Moderate northeast swell dying out.

Monday: Southwest 25 knots, becoming southeast 15 knots early. Easing to variable 10 knots late. Rough sea easing.

Issued: 11:21pm Thursday 7 May 2026

Brett

Warning: Nil

Friday: Northeast 25 knots, changing northwest 25 knots in the evening. Sea rough. Northeast swell 2 metres. Poor visibility in evening rain. Possible thunderstorms from evening.

Saturday: Northwest 25 knots. Sea rough. Moderate northeast swell.

Sunday: Westerly 25 knots. Sea rough. Moderate easterly swell dying out.

Monday: Southwest 20 knots, turning southeast 15 knots early.

Issued: 11:21pm Thursday 7 May 2026

Kaipara

Warning: Gale warning

Friday: Northerly 25 knots, rising to 35 knots late afternoon. Easing to northwest 20 knots in the evening. Sea becoming very rough for a time. Long period southwest swell 1 metre. Northwest swell rising to 2 metres. Poor visibility in rain developing in the afternoon. Possible thunderstorms from evening.

Saturday: Northwest 20 knots, turning southwest 25 knots in the afternoon. Sea becoming rough. Heavy northwest swell, but moderate westerly swell south of Cape Reinga.

Sunday: Southwest 25 knots. Sea rough. Heavy northwest swell dying out. Heavy southwest swell developing.

Monday: Southwest 25 knots, becoming southeast 10 knots early. Rough sea easing. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Raglan

Warning: Gale warning

Friday: Northerly 25 knots, rising to 35 knots in the afternoon. Easing to northwest 25 knots late evening. Sea becoming very rough for a time. Long period southwest swell 1 metre. Northwest swell rising to 2 metres. Poor visibility in rain developing in the afternoon. Possible thunderstorms from evening.

Saturday: Northwest 25 knots, easing to 15 knots in the morning. Turning southwest 20 knots in the evening. Rough sea easing. Moderate westerly swell.

Sunday: Southwest 20 knots, rising to 30 knots early. Sea becoming rough. Southwest swell becoming heavy.

Monday: Southerly 25 knots, easing to southeast 15 knots early. Turning southwest 10 knots late. Rough sea easing. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Stephens

Warning: Storm warning

Friday: Northwest 25 knots but 35 knots west of Stephens Island to Hawera, rising to northerly 40 knots but 60 knots in the west late afternoon. Becoming northwest 40 knots everywhere in the evening. Sea becoming very high for a time in the west. West of Farewell Spit to Hawera: Southwest swell 1 metre. Northwest swell rising to 3 metres. East of Farewell Spit to Hawera: Northwest swell rising to 3 metres. Poor visibility in periods of rain. Possible thunderstorms about Farewell Spit.

Saturday: Northwest 35 knots, turning southwest 25 knots west of Farewell Spit to Hawera in the morning. Very rough sea easing. Moderate westerly swell.

Sunday: Becoming southwest 35 knots everywhere early, easing to southerly 15 knots late. Sea becoming very rough for a time. Westerly swell becoming heavy.

Monday: Southeast 20 knots, becoming southwest 10 knots early. Rising to westerly 20 knots late. Heavy westerly swell easing.

Issued: 11:21pm Thursday 7 May 2026

Cook

Warning: Storm warning

Friday: Northerly 35 knots, rising to 45 knots early afternoon, then to 60 knots late afternoon. Northerly easing to 50 knots late evening. Sea becoming very high for a time. Northerly swell rising to 3 metres. Poor visibility in periods of rain.

Saturday: Northwest 50 knots, easing to 25 knots in the afternoon. High sea easing. Moderate northerly swell easing.

Sunday: Northwest 25 knots, changing southerly 35 knots later. Sea becoming very rough. Heavy southerly swell developing.

Monday: Southerly 30 knots, easing to 20 knots early. Turning northwest 20 knots later. Rough sea easing. Heavy southerly swell easing.

Issued: 11:21pm Thursday 7 May 2026

Castlepoint

Warning: Storm warning

Friday: Northerly 25 knots but 35 knots south of Cape Palliser, rising to 35 knots but 45 knots in the south in the afternoon, then rising to northwest 55 knots in the south in the evening. Sea becoming high in the south. Southwest swell rising to 2 metres. Northeast swell 1 metre. Fair visibility in rain developing in the evening.

Saturday: Northerly 35 knots but 50 knots south of Cape Palliser, easing to 25 knots everywhere in the morning. High sea in the south easing. Moderate northeast swell.

Sunday: Northwest 20 knots, becoming southwest 40 knots later. Sea becoming very rough. Moderate northeast swell dying out. Heavy southwest swell developing.

Monday: Southwest 40 knots, easing to 25 knots early, then to westerly 15 knots later. Very rough sea easing. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Portland

Warning: Nil

Friday: Northerly 20 knots, rising to 30 knots late afternoon. Sea becoming rough. Southwest swell rising to 2 metres. Northeast swell 1 metre. Fair visibility in rain developing in the evening.

Saturday: Northerly 25 knots, easing to northwest 15 knots in the afternoon. Rough sea easing. Moderate northeast swell.

Sunday: Westerly 20 knots, rising to southwest 35 knots later. Sea becoming very rough. Moderate northeast swell, becoming heavy northeast swell south of East Cape.

Monday: Southwest 35 knots, easing to 25 knots early, then to 10 knots late. Very rough sea easing. Heavy northeast swell, but moderate northeast swell north of East Cape, becoming heavy southerly swell everywhere.

Issued: 11:21pm Thursday 7 May 2026

Abel

Warning: Gale warning

Friday: Northerly 30 knots, rising to northwest 45 knots in the afternoon. Easing to northwest 35 knots in the evening. Sea becoming very rough for a time. Northerly swell rising to 3 metres. Poor visibility in periods of rain. Possible thunderstorms from afternoon.

Saturday: Northwest 30 knots, easing to westerly 20 knots in the afternoon. Rough sea easing. Moderate northerly swell easing.

Sunday: Westerly 25 knots, becoming southerly 10 knots later. Rough sea easing.

Monday: Southerly 15 knots, changing northerly 10 knots early. Becoming westerly 20 knots later.

Issued: 11:21pm Thursday 7 May 2026

Grey

Warning: Storm warning

Friday: Northwest 15 knots but 25 knots north of Grey River, rising to northerly 35 knots but northeast 25 knots in the south in the morning. Then rising to northwest 40 knots but 50 knots south of Hokitika in the afternoon. Sea becoming high in the south. Southwest swell 1 metre. Northwest swell rising to 4 metres. Poor visibility in rain afternoon. Possible thunderstorms.

Saturday: Northwest 40 knots, turning southwest 25 knots in the morning. Very rough sea easing. Heavy westerly swell.

Sunday: Southwest 30 knots, rising to 40 knots early. Easing to southerly 15 knots late. Sea becoming very rough for a time. Heavy southwest swell.

Monday: Southerly 20 knots, easing to southwest 10 knots early, rising to 20 knots later. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Milford

Warning: Storm warning

Friday: Northerly 15 knots, rising to northeast 25 knots in the morning, then rising to northerly 35 knots early afternoon. Changing southerly 35 knots late afternoon, then rising to southwest 50 knots in the evening. Sea becoming high. Long period southwest swell rising to 3 metres. Northwest swell rising to 3 metres. Poor visibility in rain from afternoon.

Saturday: Southwest 45 knots, easing to 25 knots in the evening. High sea easing. Heavy southwest swell.

Sunday: Southwest 25 knots, rising to 35 knots early. Easing to southerly 25 knots late. Sea becoming very rough for a time. Heavy southwest swell.

Monday: Southwest 25 knots. Sea rough. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Puysegur

Warning: Gale warning

Friday: Northwest 25 knots. Changing southeast 20 knots but southerly 35 knots west of West Cape late afternoon, becoming southerly 35 knots everywhere late evening. Sea becoming very rough. Long period southwest swell rising to 3 metres. Northwest swell rising to 3 metres. Poor visibility in rain from afternoon.

Saturday: Southwest 30 knots. Sea rough. Southwest swell becoming heavy.

Sunday: Southwest 35 knots, easing to 25 knots late. Very rough sea easing. Heavy southwest swell.

Monday: Southwest 25 knots, rising to 35 knots south of West Cape early. Sea becoming very rough in the south. Heavy southwest swell.

Issued: 11:21pm Thursday 7 May 2026

Foveaux

Warning: Nil

Friday: Westerly 15 knots, turning northerly 15 knots in the morning. Changing southerly 25 knots in the evening. Sea becoming rough. Long period southwest swell rising to 2 metres. Northeast swell 1 metre. Poor visibility in rain developing in the afternoon.

Saturday: Southwest 25 knots, rising to westerly 35 knots in the morning. Sea becoming very rough. Southwest swell becoming heavy.

Sunday: Southwest 40 knots, easing to 25 knots late. Very rough sea easing. Heavy southwest swell.

Monday: Southwest 25 knots, rising to westerly 35 knots early. Sea becoming very rough. Heavy southwest swell.

Issued: 11:21pm Thursday 7 May 2026

Chalmers

Warning: Nil

Friday: Southwest 15 knots. Changing northeast 15 knots in the morning. Changing southerly 25 knots in the evening. Sea becoming rough. Long period southwest swell rising to 2 metres. Northeast swell rising to 2 metres. Poor visibility in rain developing in the afternoon.

Saturday: Southwest 20 knots, rising to westerly 30 knots in the morning. Sea becoming rough. Moderate northeast swell dying out. Heavy southwest swell developing.

Sunday: Westerly 35 knots, rising to southwest 45 knots early, easing to 35 knots later. Sea becoming high for a time. Heavy southwest swell.

Monday: Westerly 30 knots. Sea rough. Heavy southwest swell.

Issued: 11:21pm Thursday 7 May 2026

Rangitata

Warning: Gale warning

Friday: Northerly 15 knots, rising to 25 knots early afternoon, then rising to 35 knots offshore late afternoon. Sea becoming very rough. Southwest swell rising to 2 metres. Northeast swell rising to 3 metres. Poor visibility in rain developing in the afternoon.

Saturday: Northerly 25 knots, turning southwest 25 knots early morning. Changing northerly 15 knots in the morning. Changing southwest 20 knots in the evening. Very rough sea easing. Moderate northeast swell dying out. Moderate southeast swell developing.

Sunday: Southwest 15 knots, rising to 40 knots early, easing to 30 knots late. Sea becoming very rough for a time. Moderate southeast swell dying out. Heavy southwest swell developing.

Monday: Southwest 30 knots, becoming northwest 20 knots early. Rough sea easing. Heavy southwest swell easing.

Issued: 11:21pm Thursday 7 May 2026

Conway

Warning: Storm warning

Friday: Northerly 25 knots but 35 knots north of Kaikoura Peninsula, rising to 40 knots but 50 knots in the north in the afternoon. Sea becoming very rough in the north. Southwest swell rising to 2 metres. Northeast swell rising to 3 metres. Poor visibility in rain developing in the afternoon.

Saturday: Northerly 30 knots, easing to 10 knots in the morning. Becoming westerly 20 knots in the evening. Rough sea easing. Moderate northeast swell easing.

Sunday: Westerly 20 knots, rising to southwest 35 knots early. Sea becoming very rough. Heavy southwest swell developing.

Monday: Southwest 35 knots, easing to 25 knots early. Becoming northwest 15 knots later. Very rough sea easing. Heavy southerly swell easing.

Issued: 11:21pm Thursday 7 May 2026

Chatham Islands

Warning: Nil

Friday: Northerly 20 knots, rising to 30 knots in the afternoon. Sea becoming rough. Southwest swell rising to 2 metres. Northwest swell 2 metres.

Saturday: Northerly 30 knots, easing to northwest 15 knots in the evening. Rough sea easing. Moderate northwest swell.

Sunday: Northwest 20 knots, turning southwest 25 knots later. Sea becoming rough. Moderate northwest swell dying out. Heavy southwest swell developing.

Monday: Southwest 30 knots. Sea rough. Heavy southwest swell.

Issued: 11:21pm Thursday 7 May 2026