Coastal Forecasts

Plenty

Warning: Gale warning

Monday: Northeast 20 knots, rising to 30 knots in the evening. Sea becoming rough. Northeast swell rising to 2 metres late. Fair visibility in isolated showers.

Tuesday: Northerly rising to 35 knots in the morning. Sea becoming very rough. Northeast swell rising to 4 metres late. Very poor visibility in periods of heavy rain.

Wednesday: Northerly 30 knots, becoming westerly 15 knots in the morning. Rough sea easing. Heavy northerly swell easing.

Thursday: Westerly 15 knots, easing to variable 10 knots later. Moderate northeast swell.

Friday: Southeast 10 knots, rising to southerly 20 knots early. Moderate easterly swell.

Issued: 10:18am Monday 28 Jul 2025

Colville

Warning: Gale warning

Monday: Northeast 25 knots, rising to 35 knots in the evening. Sea becoming very rough. Northeast swell rising to 3 metres late. Fair visibility in isolated showers.

Tuesday: Northeast 35 knots, easing to northerly 20 knots late evening. Very rough sea easing. Northeast swell rising to 5 metres for a time. Very poor visibility in periods of heavy rain, clearing evening. Possible afternoon and evening thunderstorms.

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

Thursday: Westerly 15 knots, easing to variable 10 knots later. Moderate northeast swell.

Friday: Variable 10 knots, becoming southerly 20 knots early. Moderate easterly swell.

Issued: 10:18am Monday 28 Jul 2025

Brett

Warning: Gale warning

Monday: Northeast 35 knots, rising to 45 knots for a time in the evening. Sea becoming high for a time. Northeast swell rising to 4 metres late. Poor visibility in rain from evening.

Tuesday: Northeast 35 knots, easing to northwest 20 knots late afternoon. Very rough sea easing. Northeast swell rising to 5 metres for a time. Very poor visibility in periods of heavy rain, clearing evening. Possible thunderstorms.

Wednesday: Westerly 15 knots. Moderate northeast swell.

Thursday: Westerly 15 knots, easing to variable 10 knots later. Moderate northeast swell.

Friday: Easterly 10 knots, becoming southerly 25 knots early, easing to 15 knots later. Sea becoming rough for a time. Moderate easterly swell.

Issued: 10:18am Monday 28 Jul 2025

Kaipara

Warning: Gale warning

Monday: Northeast 35 knots, rising to 45 knots for a time in the evening. Sea becoming high for a time. North of Cape Reinga: Northeast swell rising to 4 metres late. South of Cape Reinga: Southwest swell 1 metre. Northerly swell rising to 2 metres. Poor visibility in rain spreading south from afternoon.

Tuesday: Northeast 35 knots, easing to 25 knots in the morning. Changing northwest 20 knots in the afternoon. Very rough sea easing. North of Cape Reinga: Northeast swell 4 metres, easing. South of Cape Reinga: Southwest swell 1 metre. Northerly swell 2 metres, easing. Very poor visibility in periods of heavy rain, clearing evening.

Wednesday: Westerly 15 knots. Moderate northerly swell, but moderate westerly swell south of Cape Reinga.

Thursday: Westerly 15 knots, easing to variable 10 knots early. Becoming southeast 15 knots late. Moderate northerly swell, but moderate westerly swell south of Cape Reinga.

Friday: Southerly 15 knots. Moderate northerly swell dying out. Moderate southwest swell developing.

Issued: 10:18am Monday 28 Jul 2025

Raglan

Warning: Gale warning

Monday: Northeast 25 knots, rising to 35 knots in the evening. Sea becoming very rough. Southwest swell 1 metre. Northerly swell rising to 2 metres.

Tuesday: Northeast 35 knots, easing to 25 knots in the morning. Changing northwest 20 knots in the afternoon. Very rough sea easing. Northerly swell 2 metres, easing. Southwest swell 1 metre. Poor visibility in periods of rain, clearing evening.

Wednesday: Westerly 15 knots. Moderate northwest swell.

Thursday: Southwest 10 knots, turning southeast 15 knots later. Moderate westerly swell easing.

Friday: Southeast 15 knots, rising to 25 knots early. Easing to southerly 15 knots late. Sea becoming rough for a time. Southwest swell becoming moderate.

Issued: 10:18am Monday 28 Jul 2025

Stephens

Warning: Gale warning

Monday: Northeast 15 knots but northerly 25 knots west of Farewell Spit to Hawera. Northerly rising to 35 knots in the west in the evening. Sea becoming very rough in the west. West of Stephens Island to Hawera: Southwest swell 1 metre. Northerly swell rising to 2 metres. Poor visibility in rain in the west from evening.

Tuesday: Northerly 35 knots, easing to 25 knots in the afternoon, and to northwest 15 knots in the evening. Very rough sea easing. West of Farewell Spit to Hawera: Northerly swell rising to 4 metres for a time. Southwest swell 1 metre. East of Farewell Spit to Hawera: northeast swell rising to 3 metres for a time. Poor visibility in periods of rain, clearing evening.

Wednesday: Northwest 10 knots, becoming westerly 10 knots but northwest 20 knots east of Farewell Spit to Hawera in the afternoon. Moderate northwest swell easing.

Thursday: Becoming southwest 10 knots everywhere early, becoming southeast 20 knots in the morning.

Friday: Southeast 25 knots. Sea rough.

Issued: 10:18am Monday 28 Jul 2025

Cook

Warning: Nil

Monday: Northerly 25 knots. Sea rough. Long period southerly swell 1 metre.

Tuesday: Northerly rising to 30 knots in the morning, easing to 20 knots in the evening. Rough sea easing. Long period southerly swell 1 metre, easing.

Wednesday: Northerly 20 knots, becoming westerly 10 knots in the evening.

Thursday: Southwest 15 knots, rising to southerly 25 knots early. Sea becoming rough.

Friday: Southerly 25 knots, rising to 35 knots for a time in the morning. Sea becoming very rough for a time. Southerly swell becoming moderate.

Issued: 10:18am Monday 28 Jul 2025

Castlepoint

Warning: Gale warning

Monday: Northerly 15 knots but 25 knots south of Cape Palliser, becoming northerly 25 knots everywhere in the evening. Sea becoming rough. Long period southeast swell 2 metres, easing. Northeast swell 2 metres developing.

Tuesday: Northerly 25 knots, rising to 35 knots in the morning. Sea becoming very rough. Northeast swell rising to 4 metres offshore late. Poor visibility in scattered rain.

Wednesday: Northerly 30 knots, easing to 20 knots south of Cape Palliser in the morning. Becoming northwest 15 knots everywhere in the afternoon. Rough sea easing. Heavy northeast swell, easing.

Thursday: Northwest 20 knots, turning southerly 15 knots early, rising to 25 knots later. Sea becoming rough. Moderate easterly swell.

Friday: Southerly 25 knots. Sea rough. Moderate southeast swell.

Issued: 10:18am Monday 28 Jul 2025

Portland

Warning: Gale warning

Monday: Northerly 20 knots, rising to northeast 30 knots in the evening. Sea becoming rough. Long period southeast swell 2 metres, easing. Northeast swell 2 metres developing.

Tuesday: Northerly rising to 35 knots in the morning. Sea becoming very rough. Northeast swell rising to 4 metres offshore late. Poor visibility in scattered rain.

Wednesday: Northerly 35 knots, easing to 20 knots in the morning, then to northwest 10 knots in the afternoon. Very rough sea easing. Heavy northeast swell, easing.

Thursday: Westerly 10 knots, rising to southwest 20 knots early, easing to 10 knots north of East Cape late. Moderate northeast swell.

Friday: Southwest 10 knots but 20 knots south of East Cape. Rising to southerly 30 knots everywhere early. Sea becoming rough. Moderate northeast swell dying out. Heavy southeast swell developing.

Issued: 10:18am Monday 28 Jul 2025

Abel

Warning: Gale warning

Monday: Northerly 15 knots, rising to 25 knots in the evening. Sea becoming rough. Northerly swell rising to 2 metres over exposed waters. Fair visibility in scattered showers from evening.

Tuesday: Northeast 25 knots, rising to 35 knots for a time in the morning and early afternoon. Easing to northwest 15 knots in the evening. Sea becoming very rough for a time. Northerly swell rising to 3 metres for a time over exposed waters. Very poor visibility in periods of heavy rain, clearing evening.

Wednesday: Northwest 10 knots. Moderate northerly swell easing.

Thursday: Variable 10 knots, becoming southeast 10 knots but 20 knots north of Separation Point later.

Friday: Southerly 10 knots but southeast 20 knots north of Separation Point.

Issued: 10:18am Monday 28 Jul 2025

Grey

Warning: Gale warning

Monday: Northeast 25 knots, rising to 35 knots south of Abut Head in the afternoon. Rising to northeast 40 knots everywhere in the evening. Sea becoming very rough. Northerly swell rising to 3 metres. Southwest swell 1 metre. Poor visibility in scattered showers.

Tuesday: Northeast 35 knots, easing to northerly 25 knots in the morning, then to 10 knots in the afternoon. Very rough sea easing. Northerly swell rising to 5 metres for a time early. Southwest swell 1 metre. Very poor visibility in periods of heavy rain, turning into showers in the evening. Possible thunderstorms from afternoon.

Wednesday: Westerly 10 knots. Moderate northwest swell.

Thursday: Variable 10 knots. Moderate westerly swell.

Friday: Southeast 10 knots. Moderate southwest swell.

Issued: 10:18am Monday 28 Jul 2025

Milford

Warning: Storm warning

Monday: Northeast 40 knots, rising to 50 knots in the afternoon. Sea becoming high. Northerly swell rising to 4 metres. Southwest swell 1 metre. Poor visibility in rain.

Tuesday: Northeast 35 knots, easing to northerly 20 knots in the morning, then to northwest 10 knots in the afternoon. Very rough sea easing. Northerly swell 4 metres, easing. Southwest swell 1 metre. Poor visibility in morning rain. Possible thunderstorms.

Wednesday: Westerly 10 knots, becoming southerly 10 knots but 20 knots offshore in the afternoon. Moderate northerly swell dying out. Moderate westerly swell developing.

Thursday: Southeast 10 knots but southerly 20 knots offshore. Becoming southerly 10 knots everywhere early. Moderate southwest swell.

Friday: Southerly 10 knots, rising to 20 knots early. Easing to variable 10 knots inshore later. Moderate southwest swell.

Issued: 10:18am Monday 28 Jul 2025

Puysegur

Warning: Storm warning

Monday: Northerly 30 knots but 55 knots west of West Cape. Sea high in the west. West of Puysegur Point: Northerly swell rising to 5 metres for a time. Southwest swell 1 metre. East of Puysegur Point: Northwest swell 2 metres. Southwest swell 1 metre. Poor visibility in rain.

Tuesday: Northerly 30 knots but 55 knots west of West Cape. Easing to northwest 20 knots everywhere in the morning. Sea high in the west, easing. West of Puysegur Point: Northerly swell 4 metres, easing. Southwest swell 1 metre. East of Puysegur Point: Northwest swell 2 metres, easing. Southwest swell 1 metre. Poor visibility in morning rain. Possible thunderstorms north of Puysegur Point.

Wednesday: Westerly 15 knots, becoming southerly 25 knots in the morning. Sea becoming rough. Moderate southwest swell developing.

Thursday: Southerly 20 knots, becoming southeast 20 knots but southerly 30 knots north of West Cape early. Sea becoming rough in the north. Moderate southwest swell.

Friday: Easing to southerly 15 knots everywhere early, becoming southerly 20 knots but westerly 20 knots in the south later. Rough sea in the south easing. Southwest swell becoming heavy.

Issued: 10:18am Monday 28 Jul 2025

Foveaux

Warning: Nil

Monday: Northeast 15 knots, rising to 25 knots in the afternoon. Sea becoming rough. Southwest swell 1 metre.

Tuesday: Northeast 25 knots, easing to northwest 15 knots in the afternoon. Rough sea easing. Northeast swell 2 metres developing. Poor visibility in periods of morning rain.

Wednesday: Westerly 10 knots, becoming southerly 20 knots in the afternoon. Moderate easterly swell.

Thursday: Southerly 20 knots, easing to 10 knots early. Turning westerly 15 knots late. Moderate southeast swell dying out. Moderate southwest swell developing.

Friday: Westerly 20 knots, becoming southerly 10 knots early. Turning westerly 15 knots later. Southwest swell becoming heavy.

Issued: 10:18am Monday 28 Jul 2025

Chalmers

Warning: Nil

Monday: Northeast 15 knots, rising to 25 knots in the afternoon. Sea becoming rough. Long period southeast swell 1 metre. Northeast swell 1 metre developing.

Tuesday: Northerly 25 knots, easing to northwest 10 knots in the afternoon. Rough sea easing. Northeast swell rising to 2 metres. Fair visibility in scattered rain.

Wednesday: Southwest 15 knots. Moderate northeast swell.

Thursday: Southerly 15 knots. Moderate easterly swell dying out. Moderate southerly swell developing.

Friday: Southwest 15 knots, easing to variable 10 knots later. Southwest swell becoming heavy.

Issued: 10:18am Monday 28 Jul 2025

Rangitata

Warning: Nil

Monday: Variable 10 knots but northeast 15 knots offshore, becoming northeast 15 knots but 25 knots offshore in the evening. Sea becoming rough offshore. Long period southeast swell 1 metre. Northeast swell 1 metre developing.

Tuesday: Northerly 25 knots, easing to 15 knots in the evening. Rough sea easing. Northeast swell rising to 3 metres offshore.

Wednesday: Northerly 20 knots, changing southwest 15 knots in the morning. Moderate northeast swell.

Thursday: Southerly 15 knots. Moderate easterly swell.

Friday: Southwest 20 knots, easing to 10 knots inshore early, then to variable 10 knots everywhere late. Moderate southeast swell.

Issued: 10:18am Monday 28 Jul 2025

Conway

Warning: Gale warning

Monday: Northerly 20 knots, rising to 30 knots north of Kaikoura Peninsula in the afternoon. Sea becoming rough in the north. Long period southeast swell 2 metres, easing. Northeast swell 2 metres developing.

Tuesday: Northerly 20 knots but 30 knots north of Kaikoura Peninsula. Becoming northerly 35 knots everywhere in the morning, easing to 25 knots in the evening. Sea becoming very rough for a time. Northeast swell rising to 4 metres offshore late. Poor visibility in scattered evening rain.

Wednesday: Northerly 25 knots, easing to northwest 10 knots in the morning. Turning southwest 15 knots in the afternoon. Rough sea easing. Heavy northeast swell, easing.

Thursday: Southerly 20 knots. Moderate easterly swell easing.

Friday: Southerly 20 knots, becoming southwest 25 knots but 35 knots north of Kaikoura Peninsula early. Sea becoming very rough in the north. Southeast swell becoming moderate.

Issued: 10:18am Monday 28 Jul 2025

Chatham Islands

Warning: Nil

Monday: Northwest rising to 15 knots in the afternoon. Sea slight. Long period southeast swell 2 metres, easing. Long period southwest swell 1 metre developing.

Tuesday: Northerly rising to 20 knots in the morning and to 30 knots in the evening. Sea becoming rough. Long period southwest swell rising to 2 metre. Long period northwest swell 3 metres developing.

Wednesday: Northerly rising to 35 knots in the morning. Sea becoming very rough. Northerly swell becoming heavy.

Thursday: Northerly 35 knots, easing to northwest 15 knots early. Becoming easterly 15 knots later. Very rough sea easing. Heavy northerly swell easing.

Friday: Southeast 20 knots, rising to southerly 30 knots early. Sea becoming rough. Moderate northerly swell dying out. Heavy southerly swell developing.

Issued: 10:18am Monday 28 Jul 2025