Coastal Forecasts

Plenty

Warning: Gale warning

Friday: Northerly 25 knots, rising to 35 knots in the afternoon. Becoming westerly 15 knots west of White Island in the evening. Sea becoming very rough for a time. Northeast swell rising to 3 metres. Poor visibility in developing rain, heavy at times. Thunderstorms possible in the evening.

Saturday: Northerly 35 knots but westerly 15 knots west of White Islands. Becoming southerly 20 knots everywhere in the morning. Rough sea in the east, easing. Northeast swell 3 metres, easing. Poor visibility in rain, heavy at times, easing in the morning.

Sunday: Southerly 20 knots. Moderate easterly swell.

Monday: Southeast 20 knots, easing to 10 knots early. Moderate easterly swell.

Tuesday: Variable 10 knots, becoming westerly 15 knots early. Moderate easterly swell easing.

Issued: 12:45pm Friday 9 May 2025

Colville

Warning: Gale warning

Friday: Northerly 35 knots, changing southwest 25 knots in the evening. Very rough sea easing. Northeast swell 3 metres. Poor visibility in rain, heavy at times, clearing in the evening. Possible afternoon thunderstorms.

Saturday: Southwest 20 knots. Sea moderate. Northeast swell 3 metres, easing. Fair visibility in a few showers.

Sunday: Southeast 20 knots. Moderate easterly swell.

Monday: Southeast 20 knots, easing to 10 knots late. Moderate easterly swell.

Tuesday: Southerly 10 knots. Moderate easterly swell.

Issued: 12:45pm Friday 9 May 2025

Brett

Warning: Gale warning

Friday: Northeast 35 knots, easing to northerly 20 knots early afternoon. Changing southerly 20 knots in the evening. Very rough sea easing. Northeast swell 3 metres. Poor visibility in rain, heavy at times, clearing in the evening. Possible afternoon thunderstorms.

Saturday: Southerly 20 knots. Sea moderate. Northeast swell 3 metres, easing. Fair visibility in a few showers.

Sunday: Southerly 20 knots. Moderate easterly swell.

Monday: Southeast 20 knots. Moderate easterly swell.

Tuesday: Southeast 15 knots. Moderate easterly swell.

Issued: 12:45pm Friday 9 May 2025

Kaipara

Warning: Nil

Friday: Northerly 25 knots, changing southerly 20 knots in the evening. Rough sea easing. Very long period southwest swell 3 metres. Northeast swell 3 metres north of Cape Reinga. Poor visibility in rain, heavy at times, clearing in the evening. Possible afternoon thunderstorms.

Saturday: Southerly 20 knots. Sea moderate. Long period southwest swell 3 metres. Northeast swell 3 metres north of Cape Reinga, easing.

Sunday: Southerly 20 knots. Moderate southwest swell.

Monday: Southeast 20 knots. Moderate southwest swell.

Tuesday: Southeast 15 knots. Moderate southwest swell.

Issued: 12:45pm Friday 9 May 2025

Raglan

Warning: Gale warning

Friday: Northerly 35 knots, changing southwest 25 knots in the evening. Very rough sea easing. Very long period southwest swell 3 metres. Poor visibility in rain, heavy at times, clearing in the evening. Possible afternoon thunderstorms.

Saturday: Southerly 25 knots, easing to 15 knots in the evening. Rough sea easing. Long period southwest swell 3 metres.

Sunday: Southerly 20 knots, becoming easterly 10 knots in the evening. Moderate southwest swell.

Monday: Variable 10 knots. Moderate southwest swell.

Tuesday: Southwest 10 knots, rising to 20 knots early. Moderate southwest swell.

Issued: 12:45pm Friday 9 May 2025

Stephens

Warning: Gale warning

Friday: Northerly 40 knots but southwest 25 knots west of Stephens Island to Hawera. Becoming southwest 25 knots everywhere in the afternoon. Very rough sea in east, easing. West of Cape Farewell to Hawera: Long period southwest swell 3 metres. Elsewhere: Westerly swell 1 metre. Poor visibility in rain, heavy at times, clearing early evening.

Saturday: Southerly 25 knots. Becoming southwest 20 knots but variable 10 knots east of Farewell Spit to Hawera in the morning. Rough sea easing. West of Cape Farewell to Hawera: Long period southwest swell 3 metres. Elsewhere: Westerly swell 1 metre.

Sunday: Southwest 25 knots, turning southeast 20 knots in the morning, easing to 10 knots in the evening. Rough sea easing. Moderate westerly swell.

Monday: Becoming northwest 15 knots but southwest 20 knots west of Farewell Spit to Hawera early. Moderate westerly swell.

Tuesday: Becoming northwest 25 knots but southwest 25 knots west of Farewell Spit to Hawera early. Sea becoming rough. Moderate westerly swell.

Issued: 12:45pm Friday 9 May 2025

Cook

Warning: Gale warning

Friday: Northerly 35 knots, easing to 15 knots in the afternoon. Changing southerly 35 knots in the evening. Very rough sea easing for a time. Northerly swell 1 metre north of Cape Terawhiti, easing. Poor visibility in rain, heavy at times, clearing early evening.

Saturday: Southerly 30 knots, easing to variable 10 knots in the morning. Northwest 15 knots developing in the evening. Rough sea easing. Southerly swell 1 metre developing for a time.

Sunday: Northerly 10 knots, changing southerly 20 knots in the morning, easing to 10 knots in the evening.

Monday: Variable 10 knots, becoming northerly 15 knots early.

Tuesday: Northerly 10 knots, rising to northwest 20 knots early, easing to 10 knots late.

Issued: 12:45pm Friday 9 May 2025

Castlepoint

Warning: Gale warning

Friday: Northerly rising to 35 knots early afternoon, easing to 15 knots south of Cape Palliser late afternoon. Changing southwest 20 knots but 30 knots in the south in the evening. Sea becoming very rough for a time. Northeast swell 2 metres. Southwest swell 1 metre. Poor visibility in developing rain, heavy at times.

Saturday: Southwest 25 knots, easing to variable 10 knots in the morning. Northwest 15 knots developing south of Cape Palliser in the evening. Rough sea easing. Northeast swell 2 metres, easing. Southwest swell 1 metre. Fair visibility in occasional morning rain.

Sunday: Variable 10 knots.

Monday: Easterly 10 knots, turning northerly 15 knots early. Southerly swell becoming moderate.

Tuesday: Northerly 15 knots, becoming westerly 10 knots later. Moderate southerly swell.

Issued: 12:45pm Friday 9 May 2025

Portland

Warning: Gale warning

Friday: Northerly 25 knots, rising to 40 knots in the afternoon. Changing westerly 20 knots west of Mahia Peninsula in the evening. Very rough sea at times. North of Mahia Peninsula: Northeast swell rising to 3 metres. Southwest swell 1 metre. Elsewhere: Northeast swell rising to 3 metres offshore. Southwest swell 1 metre. Poor visibility in developing rain, heavy at times.

Saturday: Northerly 40 knots but westerly 20 knots west of Mahia Peninsula. Becoming southerly 25 knots everywhere early morning and then easing to 15 knots in the south late morning. Very rough sea in the east, easing. North of Mahia Peninsula: Northeast swell 3 metres, easing. Southwest swell 1 metre. Elsewhere: Northeast swell 3 metres offshore, easing. Southwest swell 1 metre. Poor visibility in morning rain.

Sunday: Southerly 20 knots, becoming southeast 10 knots but 20 knots north of Mahia Peninsula in the afternoon. Moderate easterly swell.

Monday: Becoming northeast 20 knots but southeast 20 knots north of Mahia Peninsula early. Moderate southeast swell.

Tuesday: Easing to northerly 10 knots everywhere early, becoming northerly 15 knots but westerly 20 knots north of East Cape later. Moderate southeast swell.

Issued: 12:45pm Friday 9 May 2025

Abel

Warning: Nil

Friday: Westerly 20 knots. Sea moderate. Northerly swell 1 metre. Poor visibility in rain, heavy at times, clearing early evening.

Saturday: Southwest 15 knots. Sea slight. Northerly swell 1 metre, easing.

Sunday: Southerly 10 knots.

Monday: Variable 10 knots.

Tuesday: Southwest 10 knots, rising to westerly 20 knots early, easing to 10 knots late.

Issued: 12:45pm Friday 9 May 2025

Grey

Warning: Nil

Friday: Southwest 25 knots. Sea rough. Long period southwest swell 4 metres. Poor visibility in early evening showers.

Saturday: Southwest 20 knots. Sea moderate. Long period southwest swell 4 metres, easing. Fair visibility in a few showers.

Sunday: Southerly 10 knots but southwest 20 knots offshore. Becoming southwest 20 knots everywhere in the morning, easing to 10 knots in the evening. Moderate southwest swell.

Monday: Southwest 15 knots. Moderate southwest swell.

Tuesday: Southwest 10 knots, rising to 20 knots early. Moderate southwest swell.

Issued: 12:45pm Friday 9 May 2025

Milford

Warning: Nil

Friday: Southwest 25 knots, easing to westerly 15 knots in the evening. Rough sea easing. Long period southwest swell 4 metres. Poor visibility in rain from late evening.

Saturday: Westerly 20 knots. Sea moderate. Long period southwest swell 4 metres, easing for a time. Poor visibility in rain.

Sunday: Southwest 15 knots. Heavy southwest swell.

Monday: Variable 10 knots, becoming northwest 15 knots early. Heavy southwest swell easing.

Tuesday: Northwest 20 knots, turning southwest 20 knots early. Moderate southwest swell.

Issued: 12:45pm Friday 9 May 2025

Puysegur

Warning: Gale warning

Friday: Westerly 20 knots, rising to northwest 30 knots south of Puysegur Point in the evening. Sea becoming rough in the south. Long period southwest swell 4 metres. Poor visibility in rain from late evening.

Saturday: Northwest 25 knots, rising to 35 knots south of Puysegur Point in the morning. Changing southwest 25 knots everywhere in the afternoon. Easing to westerly 15 knots in the north in the evening. Sea becoming very rough for a time in the south. Long period southwest swell 4 metres, easing for a time. Poor visibility in rain, easing to showers in the evening.

Sunday: Westerly 20 knots, easing to 10 knots north of West Cape in the morning. Rising to northwest 25 knots everywhere in the afternoon. Sea becoming rough. Heavy southwest swell.

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

Tuesday: Westerly 30 knots, becoming southwest 15 knots but westerly 25 knots south of West Cape later. Sea rough. Westerly swell becoming heavy.

Issued: 12:45pm Friday 9 May 2025

Foveaux

Warning: Gale warning

Friday: Westerly 20 knots. Sea moderate. Long period southwest swell 3 metres.

Saturday: Westerly 20 knots, rising to 35 knots in the morning. Easing to southwest 25 knots in the evening. Sea becoming very rough for a time. Long period southwest swell rising to 4 metres offshore. Poor visibility in developing rain, easing to showers in the evening.

Sunday: Westerly 20 knots. Heavy southwest swell.

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

Tuesday: Northwest 20 knots, rising to westerly 30 knots early, easing to 20 knots late. Sea becoming rough for a time. Southwest swell becoming heavy.

Issued: 12:45pm Friday 9 May 2025

Chalmers

Warning: Nil

Friday: Southwest 20 knots. Sea moderate. Long period southwest swell 2 metres. Poor visibility in rain, heavy at times, easing late.

Saturday: Westerly 15 knots, becoming southwest 25 knots in the evening. Sea becoming rough. Long period southwest swell rising to 3 metres offshore.

Sunday: Southwest 20 knots, turning northwest 15 knots in the afternoon. Southwest swell becoming heavy.

Monday: Northwest 15 knots. Heavy southwest swell easing.

Tuesday: Northwest 15 knots, becoming southwest 25 knots later. Sea becoming rough. Southwest swell becoming heavy.

Issued: 12:45pm Friday 9 May 2025

Rangitata

Warning: Gale warning

Friday: Southerly 15 knots, rising to 25 knots in the afternoon and then to 35 knots for a time early evening. Easing to southwest 15 knots late evening. Sea becoming very rough for a time. Southwest swell 1 metre. Northeast swell 1 metre. Poor visibility in rain, heavy at times, easing in the evening.

Saturday: Southwest 15 knots, changing northwest 15 knots in the morning. Becoming southwest 15 knots in the evening. Sea slight. Southwest swell 1 metre. Northeast swell 1 metre, easing. Poor visibility in evening rain.

Sunday: Southerly 15 knots, easing to variable 10 knots in the morning. Becoming northeast 15 knots in the afternoon. Southerly swell becoming moderate.

Monday: Northerly 15 knots. Moderate southwest swell.

Tuesday: Northerly 10 knots, rising to northwest 20 knots early. Turning southerly 20 knots late. Moderate southwest swell.

Issued: 12:45pm Friday 9 May 2025

Conway

Warning: Gale warning

Friday: Northerly 35 knots but variable 10 knots west of Cape Campbell. Easing to variable 10 knots everywhere in the afternoon. Changing southwest 35 knots early evening, easing to 25 knots late evening. Sea very rough at times. Northeast swell 2 metres, easing. Southwest swell 1 metre. Poor visibility in rain, heavy at times, easing in the evening.

Saturday: Southwest 25 knots, changing northwest 15 knots in the morning. Rough sea easing. Northeast swell 1 metre, easing. Southwest swell 1 metre.

Sunday: Northwest 15 knots. Becoming southwest 10 knots but 20 knots north of Kaikoura Peninsula in the morning. Becoming northeast 15 knots everywhere in the afternoon.

Monday: Northerly 15 knots, easing to variable 10 knots early. Southerly swell becoming moderate.

Tuesday: Northwest 10 knots, changing southerly 20 knots late. Moderate southerly swell easing.

Issued: 12:45pm Friday 9 May 2025

Chatham Islands

Warning: Storm warning

Friday: Northerly 25 knots, rising to 35 knots in the evening. Sea becoming very rough. Northwest swell rising to 3 metres. Very long period southwest swell 2 metres, easing.

Saturday: Northerly 35 knots, rising to 50 knots early morning. Changing southwest 25 knots late morning. Easing to southwest 10 knots in the evening. Sea becoming high for a time. Long period southwest swell rising to 4 metres for a time. Northwest swell 3 metres, easing. Poor visibility in developing rain, heavy at times, easing to showers in the afternoon. Morning thunderstorms possible.

Sunday: Southerly 15 knots. Moderate westerly swell.

Monday: Southerly 10 knots, turning westerly 15 knots early. Southwest swell becoming heavy.

Tuesday: Westerly 10 knots, rising to northwest 20 knots early. Heavy southwest swell easing.

Issued: 12:45pm Friday 9 May 2025