Coastal Forecasts and Warnings
Warnings
Gale warning in effect for Cook and Puysegur
The Situation
A ridge of high pressure moves east across New Zealand today and tomorrow. A northwest flow develops over the South Island today then strengthens tomorrow ahead of a front approaching from the Tasman Sea.A ridge over the North Island moves slowly eastwards as a front makes its way northwards over the South Island during Sunday, stalling in central New Zealand by the end of the day. On Monday, the front lies slow moving over central parts of the country while a northwest flow develops over the South Island. The front crosses the North Island on Tuesday as a second front moves onto the lower South Island.
Issued: 7:30am Friday 19 Sep 2025
Coastal Forecasts
Plenty
Warning: Nil
Friday: Southwest 20 knots, turning southeast 20 knots in the evening. Sea moderate. Northwest swell 1 metre, easing. Fair visibility in scattered showers, clearing in the evening.
Saturday: Southeast 20 knots, turning northeast 15 knots in the afternoon.
Sunday: Northerly 20 knots.
Monday: Northerly 20 knots.
Issued: 3:33am Friday 19 Sep 2025
Colville
Warning: Nil
Friday: Southwest 20 knots, turning southeast 15 knots late evening. Moderate sea easing. Northwest swell 1 metre, easing.
Saturday: Southeast 15 knots, turning northeast 20 knots in the afternoon.
Sunday: Northerly 20 knots.
Monday: Northerly 20 knots. Northeast swell becoming moderate.
Issued: 3:33am Friday 19 Sep 2025
Brett
Warning: Nil
Friday: Southwest 20 knots, easing to southerly 10 knots late evening. Moderate sea easing. Northwest swell 1 metre, easing.
Saturday: Southerly 15 knots, changing northeast 20 knots in the morning.
Sunday: Northerly 20 knots.
Monday: Northerly 20 knots. Northeast swell becoming moderate.
Issued: 3:33am Friday 19 Sep 2025
Kaipara
Warning: Nil
Friday: Southwest 25 knots, easing to southerly 15 knots in the afternoon. Rough sea easing. Long period southwest swell 3 metres easing for a time.
Saturday: Southeast 10 knots, becoming northeast 20 knots in the morning. Moderate southwest swell easing.
Sunday: Northerly 20 knots. Moderate northerly swell developing north of Cape Reinga.
Monday: Northerly 20 knots. Moderate northerly swell north of Cape Reinga, becoming moderate northwest swell everywhere.
Issued: 3:33am Friday 19 Sep 2025
Raglan
Warning: Nil
Friday: Southwest 25 knots, easing to southerly 15 knots in the afternoon. Rough sea easing. Long period southwest swell rising to 4 metres for a time. Fair visibility in scattered showers, clearing in the evening. Possible thunderstorms before dawn.
Saturday: Southeast 10 knots, turning northeast 15 knots in the morning. Rising to northerly 25 knots in the afternoon. Sea becoming rough. Moderate southwest swell dying out.
Sunday: Northerly 25 knots. Sea rough. Northwest swell becoming moderate.
Monday: Northerly 25 knots. Sea rough. Moderate westerly swell.
Issued: 3:33am Friday 19 Sep 2025
Stephens
Warning: Nil
Friday: Southeast 25 knots but southwest 25 knots west of Farewell Spit to Hawera. Becoming southeast 25 knots everywhere in the morning. Easing to variable 10 knots in the evening. Rough sea easing. West of Farewell Spit to Hawera: Long period southwest swell 4 metres easing. Elsewhere: Westerly swell 2 metres easing. Fair visibility in showers, clearing in the evening.
Saturday: Northeast 10 knots, rising to northerly 25 knots in the afternoon. Sea becoming rough. Moderate westerly swell easing.
Sunday: Northerly 30 knots. Sea rough. Northwest swell becoming moderate.
Monday: Northerly 30 knots. Sea rough. Moderate northwest swell.
Issued: 6:21am Friday 19 Sep 2025
Cook
Warning: Gale warning
Friday: Southerly 35 knots, easing to 25 knots in the morning. Becoming variable 10 knots in the evening. Very rough sea easing. Southerly swell 1 metre. Fair visibility in a few showers, clearing in the morning.
Saturday: Northeast 10 knots but northerly 20 knots south of Cape Terawhiti. Rising to northerly 25 knots everywhere in the morning. Sea becoming rough. Moderate southerly swell dying out.
Sunday: Northerly 30 knots, rising to 40 knots for a time in the morning. Sea becoming very rough for a time. Northerly swell becoming moderate.
Monday: Northerly 35 knots, easing to 25 knots late. Very rough sea easing. Moderate northerly swell easing.
Issued: 3:33am Friday 19 Sep 2025
Castlepoint
Warning: Nil
Friday: Southerly 30 knots, easing to 20 knots in the afternoon, and to variable 10 knots in the evening. Rough sea easing. Southwest swell rising to 2 metres. Poor visibility in showers, clearing in the evening.
Saturday: Variable 10 knots but northerly 20 knots south of Cape Palliser. Becoming northerly 25 knots everywhere in the morning. Sea becoming rough. Moderate southerly swell dying out.
Sunday: Northerly 30 knots, easing to 20 knots late. Rough sea easing. Northeast swell becoming moderate.
Monday: Northerly 25 knots, easing to 15 knots north of Cape Palliser later. Sea rough. Moderate northeast swell easing.
Issued: 3:33am Friday 19 Sep 2025
Portland
Warning: Nil
Friday: Southerly 25 knots, easing to 15 knots south of Tolaga Bay in the evening. Rough sea, easing in the south. Southwest swell rising to 2 metres. Northwest swell 1 metre north of Tolaga Bay, easing. Poor visibility in showers spreading north.
Saturday: Southerly 20 knots, becoming easterly 15 knots but northeast 25 knots south of Mahia Peninsula in the morning. Sea becoming rough in the south. Moderate southerly swell.
Sunday: Northeast 20 knots but northerly 30 knots south of Mahia Peninsula. Sea rough in the south. Moderate southerly swell dying out.
Monday: Becoming northerly 20 knots everywhere early. Rough sea in the south easing.
Issued: 3:33am Friday 19 Sep 2025
Abel
Warning: Nil
Friday: Variable 10 knots. Sea slight. Northerly swell 1 metre dying out. Fair visibility in morning showers.
Saturday: Northwest 10 knots, rising to northerly 20 knots in the afternoon.
Sunday: Northerly 20 knots, rising to 30 knots early. Sea becoming rough. Northerly swell becoming moderate.
Monday: Northerly 30 knots. Sea rough. Moderate northerly swell.
Issued: 6:21am Friday 19 Sep 2025
Grey
Warning: Nil
Friday: Variable 10 knots but southwest 20 knots offshore in the morning. Becoming variable 10 knots everywhere in the afternoon. Moderate sea offshore, easing. Long period southwest swell 4 metres, easing.
Saturday: Northerly 10 knots, rising to 20 knots in the morning, then to 30 knots in the afternoon. Sea becoming rough. Moderate westerly swell dying out. Moderate northerly swell developing.
Sunday: Northerly 35 knots, easing to variable 10 knots later. Very rough sea easing. Northerly swell becoming heavy.
Monday: Variable 10 knots. Heavy northerly swell dying out. Heavy westerly swell developing, then easing.
Issued: 3:33am Friday 19 Sep 2025
Milford
Warning: Nil
Friday: Southerly 15 knots, easing to variable 10 knots in the morning. Northerly 20 knots developing in the evening. Sea becoming moderate. Long period southwest swell 5 metres, easing for a time. Fair visibility in a few showers from evening.
Saturday: Northerly 25 knots, rising to 35 knots in the morning, then to northeast 45 knots inshore in the evening. Sea becoming high inshore. Northwest swell becoming heavy.
Sunday: Northerly 35 knots but northeast 45 knots inshore. Becoming northwest 20 knots everywhere early. High sea inshore easing. Heavy northwest swell.
Monday: Northerly 25 knots, easing to northwest 15 knots late. Rough sea easing. Heavy westerly swell.
Issued: 3:33am Friday 19 Sep 2025
Puysegur
Warning: Gale warning
Friday: Variable 10 knots. Northwest 25 knots developing late morning, rising to northerly 30 knots but northwest 40 knots east of West Cape in the evening. Sea becoming very rough in the east. Long period southwest swell 5 metres, easing for a time. Fair visibility in a few showers from evening.
Saturday: Northwest 40 knots but northerly 30 knots west of West Cape, becoming northwest 40 knots everywhere in the morning. Sea becoming very rough everywhere. Heavy northwest swell.
Sunday: Northerly 25 knots but 45 knots west of West Cape. Becoming northwest 35 knots everywhere early. High sea in the west easing. Heavy northwest swell.
Monday: Northwest 30 knots, easing to westerly 20 knots late. Rough sea easing. Heavy westerly swell.
Issued: 3:33am Friday 19 Sep 2025
Foveaux
Warning: Nil
Friday: Westerly 15 knots, rising to northwest 25 knots early evening. Sea becoming rough. Long period southwest swell 4 metres easing. Fair visibility in scattered showers clearing in the morning.
Saturday: Northerly 20 knots, becoming northeast 20 knots but 30 knots east of Slope Point to Shelter Point in the afternoon. Sea becoming rough in the east. Moderate southwest swell easing.
Sunday: Northerly 25 knots but 35 knots east of Slope Point to Shelter Point. Sea very rough in the east.
Monday: Easing to northerly 15 knots everywhere early, becoming westerly 20 knots later. Very rough sea in the east easing. Southwest swell becoming moderate.
Issued: 3:33am Friday 19 Sep 2025
Chalmers
Warning: Nil
Friday: Westerly 15 knots, becoming northerly 20 knots in the afternoon. Sea becoming moderate. Long period southwest swell 3 metres. Fair visibility in scattered showers clearing in the morning.
Saturday: Northerly 20 knots, easing to 10 knots for a time in the morning and afternoon. Moderate southerly swell dying out.
Sunday: Northerly 20 knots, rising to 30 knots early. Easing to northeast 10 knots later. Sea becoming rough for a time. Northeast swell becoming moderate.
Monday: Rising to northerly 15 knots early. Becoming westerly 10 knots late. Moderate northeast swell dying out.
Issued: 3:33am Friday 19 Sep 2025
Rangitata
Warning: Nil
Friday: Southwest 15 knots, easing to variable 10 knots late morning. Northeast 20 knots developing late afternoon. Sea becoming moderate. Long period southwest swell rising to 3 metres offshore. Fair visibility in scattered showers clearing in the morning.
Saturday: Northerly 25 knots. Sea rough. Moderate southerly swell dying out.
Sunday: Northerly 30 knots, easing to 20 knots early. Rough sea easing. Northeast swell becoming moderate.
Monday: Northwest 15 knots. Moderate northeast swell easing.
Issued: 3:33am Friday 19 Sep 2025
Conway
Warning: Nil
Friday: Southwest 25 knots, easing to 15 knots early afternoon. Changing northeast 20 knots in the evening. Rough sea easing. Long period southwest swell rising to 2 metres. Fair visibility in scattered showers clearing in the morning.
Saturday: Northerly 20 knots, rising to 35 knots north of Kaikoura Peninsula in the afternoon. Sea becoming very rough in the north. Moderate southerly swell dying out. Moderate northeast swell developing.
Sunday: Becoming northeast 50 knots but northerly 40 knots north of Kaikoura Peninsula early. Sea becoming high. Moderate northeast swell.
Monday: Becoming northerly 20 knots but 30 knots north of Kaikoura Peninsula early. High sea easing. Moderate northeast swell easing.
Issued: 3:33am Friday 19 Sep 2025
Chatham Islands
Warning: Nil
Friday: Southwest 25 knots, easing to southerly 15 knots in the evening. Rough sea easing. Long period southwest swell rising to 4 metres. Northwest swell 3 metres easing. Fair visibility in a few showers in the morning and afternoon.
Saturday: Southerly 15 knots, easing to variable 10 knots in the morning. Becoming northerly 15 knots in the evening. Heavy southwest swell easing.
Sunday: Northerly 20 knots. Moderate southwest swell dying out. Moderate northwest swell developing.
Monday: Northerly 20 knots. Moderate northwest swell.
Issued: 3:33am Friday 19 Sep 2025
Auckland VHF Warning
No Warnings In Effect