Coastal Weather

Issued at 16:04 on Thursday 10 July 2025. Valid for Thursday.

Valid from 16:04 on Thursday 10 July 2025 until 00:12 on Saturday 12 July 2025.

Abel

Thursday : Northerly 15 knots. Sea slight. Northerly swell 2 metres easing. Poor visibility in periods of rain. Friday : Northerly 15 knots, rising to northeast 25 knots in the morning, then to 35 knots for a time in the afternoon and early evening. Becoming northwest 15 knots late evening. Sea becoming very rough for a time. Northerly swell rising to 2 metres. Poor visibility in periods of rain, heavy at times.

Outlook following 3 days: Saturday: Northerly 10 knots, rising to northwest 20 knots in the morning. Moderate northerly swell easing. Sunday: Northwest 20 knots. Monday: Northwest 20 knots, easing to westerly 10 knots late.

Brett

Thursday : Northerly 20 knots. Sea moderate. Easterly swell 2 metres. Poor visibility in occasional rain. Friday : Northerly 20 knots, rising to 35 knots late afternoon. Becoming westerly 20 knots in the evening. Sea becoming very rough for a time. Northeast swell rising to 3 metres. Poor visibility in rain, heavy at times. Possible afternoon thunderstorms.

Outlook following 3 days: Saturday: Westerly 20 knots, easing to 10 knots in the evening. Moderate northeast swell. Sunday: Northwest 15 knots. Moderate northeast swell dying out. Moderate easterly swell developing. Monday: Westerly 15 knots. Moderate easterly swell easing.

Castlepoint

Thursday : Northerly 20 knots. Sea moderate. Easterly swell 2 metres. Southerly swell 1 metre easing. Friday : Northeast 25 knots, rising to 35 knots in the afternoon, then to 45 knots in the evening. Sea becoming high. Southwest swell rising to 2 metres. Northeast swell rising to 2 metres. Poor visibility in rain developing in the afternoon.

Outlook following 3 days: Saturday: Northeast 35 knots, easing to northerly 25 knots in the morning, then to 15 knots in the afternoon. Very rough sea easing. Heavy northeast swell easing. Sunday: Northerly 20 knots. Moderate easterly swell. Monday: Northerly 20 knots. Moderate easterly swell.

Chalmers

Thursday : Northeast 15 knots. Sea slight. Northeast swell 2 metres. Southwest swell 1 metre easing. Friday : Northeast 20 knots, rising to 35 knots in the afternoon, then to 45 knots in the evening. Sea becoming high. Southwest swell rising to 3 metres. Northeast swell rising to 3 metres. Poor visibility in periods of rain from afternoon. Possible fog.

Outlook following 3 days: Saturday: Northeast 35 knots, easing to 25 knots in the morning, then to 15 knots in the evening. Very rough sea easing. Heavy northeast swell. Sunday: Northeast 20 knots. Heavy easterly swell easing. Monday: Northeast 15 knots, becoming northwest 10 knots early. Rising to northerly 20 knots later. Moderate easterly swell.

Chatham Islands

Thursday : Easterly 15 knots. Sea slight. Easterly swell 2 metres. Southwest swell 2 metres easing. Friday : Easterly 15 knots, rising to northeast 25 knots in the morning. Sea becoming rough. Easterly swell 2 metres. Long period southwest swell 1 metre.

Outlook following 3 days: Saturday: Northeast 25 knots. Sea rough. Moderate northeast swell. Sunday: Northeast 25 knots. Sea rough. Moderate northeast swell. Monday: Northerly 20 knots. Moderate northeast swell.

Colville

Thursday : Northeast 20 knots. Sea moderate. Easterly swell 2 metres. Fair visibility in occasional rain. Friday : Northeast 20 knots, rising to northerly 35 knots in the evening. Sea becoming very rough. Northeast swell rising to 3 metres. Poor visibility in rain, heavy at times.

Outlook following 3 days: Saturday: Northerly 20 knots, becoming westerly 20 knots in the morning, easing to 10 knots in the evening. Moderate northeast swell. Sunday: Northwest 10 knots. Moderate easterly swell. Monday: Northwest 10 knots, turning southwest 15 knots early. Moderate easterly swell easing.

Conway

Thursday : Northeast 20 knots. Sea moderate. Easterly swell 2 metres. Southwest swell 1 metres easing. Friday : Northeast 25 knots, rising to 35 knots in the afternoon, then to 45 knots in the evening. Sea becoming high. Northeast swell rising to 3 metres. Southwest swell rising to 2 metres. Poor visibility in periods of rain from afternoon.

Outlook following 3 days: Saturday: Northeast 35 knots, becoming northerly 15 knots but 25 knots north of Kaikoura Peninsula in the morning. Easing to 10 knots everywhere in the evening. Very rough sea easing. Heavy easterly swell easing. Sunday: Northerly 15 knots, rising to 25 knots early. Sea becoming rough. Moderate easterly swell. Monday: Northerly 25 knots, easing to northwest 15 knots early. Rough sea easing. Moderate easterly swell.

Cook

Thursday : Northerly 20 knots. Sea moderate. Fair visibility in a few morning showers. Friday : Northeast 15 knots, rising to 25 knots in the morning. Rising to 40 knots late afternoon, then to 50 knots for a time in the evening. Sea becoming high. Northerly swell 1 metre developing. Poor visibility in periods of rain, heavy at times.

Outlook following 3 days: Saturday: Northerly 25 knots but northeast 35 knots south of Cape Terawhiti. Becoming northwest 25 knots everywhere in the morning. Very rough sea in the south easing. Sunday: Northerly 30 knots. Sea rough. Monday: Northwest 30 knots, easing to 20 knots late. Rough sea easing.

Foveaux

Thursday : Northerly 15 knots. Sea slight. Northeast swell 2 metres. Southwest swell 2 metres offshore. Friday : Northeast 20 knots, rising to 35 knots in the afternoon. Sea becoming very rough. Southwest swell rising to 3 metres. Northeast swell rising to 3 metres. Possible fog offshore.

Outlook following 3 days: Saturday: Northeast 15 knots but 30 knots east of Slope Point to Shelter Point. Becoming northeast 20 knots everywhere in the morning. Rough sea in the east easing. Heavy easterly swell. Sunday: Northeast 20 knots, easing to 10 knots late. Heavy easterly swell easing. Monday: Northerly 10 knots, rising to northwest 20 knots early. Moderate easterly swell.

Grey

Thursday : Northeast 15 knots but 25 knots south of Abut Head. Sea rough in the south. Very long period northerly swell 2 metres. Southwest swell 2 metres offshore. Poor visibility in showers. Possible thunderstorms south of Abut Head before early evening. Friday : Northeast 20 knots, rising to 35 knots north of Greymouth in the morning. Becoming northeast 35 knots everywhere early afternoon, then rising to 50 knots for a time in the north late afternoon. Easing to northerly 15 knots everywhere in the evening. Sea becoming high for a time in the north. Long period southwest swell 2 metres. Poor visibility in periods of rain. Possible thunderstorms from late evening.

Outlook following 3 days: Saturday: Northeast 20 knots but northwest 20 knots offshore. Becoming northwest 20 knots everywhere in the morning. Northwest swell becoming heavy. Sunday: Northerly 25 knots, becoming northwest 30 knots but northeast 35 knots south of Cape Foulwind early. Sea becoming very rough in the south. Heavy westerly swell. Monday: Easing to westerly 20 knots everywhere early, becoming northeast 20 knots but northwest 20 knots offshore later. Very rough sea offshore easing. Heavy westerly swell easing.

Kaipara

Thursday : Northerly 20 knots. Sea moderate. South of Cape Reinga: very long period northerly swell 2 metres offshore easing. Southwest swell 1 metre. North of Cape Reinga: easterly swell 2 metres. Poor visibility in occasional rain. Friday : Northerly 20 knots, rising to 35 knots early afternoon. Becoming westerly 20 knots in the evening. Sea becoming very rough for a time. Long period southwest swell rising to 2 metres. Northwest swell 1 metre easing. Poor visibility in rain, heavy at times. Possible afternoon thunderstorms.

Outlook following 3 days: Saturday: Westerly 20 knots. Westerly swell becoming heavy. Sunday: Westerly 15 knots. Heavy westerly swell. Monday: Westerly 15 knots. Heavy southwest swell.

Milford

Thursday : Northeast 20 knots, rising to 35 knots in the evening. Sea becoming very rough. Very long period northerly swell 2 metres. Southwest swell 2 metres. Poor visibility in rain. Possible thunderstorms. Friday : Northeast 40 knots, gradually easing to 25 knots in the evening. Very rough sea easing. Long period southwest swell 2 metres. Poor visibility in rain, clearing in the morning.

Outlook following 3 days: Saturday: Northeast 35 knots but northerly 25 knots offshore. Becoming northerly 25 knots everywhere in the morning. Very rough sea easing. Northwest swell becoming heavy. Sunday: Northeast 25 knots, rising to 35 knots inshore early. Easing to variable 10 knots everywhere later. Sea becoming very rough for a time. Heavy westerly swell. Monday: Westerly 10 knots, rising to 20 knots early. Becoming northerly 25 knots later. Sea becoming rough. Heavy westerly swell easing.

Plenty

Thursday : Northeast 15 knots. Sea slight. Easterly swell 2 metres offshore. Fair visibility in a few showers. Friday : Northeast 15 knots, rising to northerly 25 knots in the morning, then to 35 knots in the evening. Sea becoming very rough. Northeast swell rising to 3 metres. Poor visibility in rain, heavy at times, developing in the afternoon.

Outlook following 3 days: Saturday: Northerly 30 knots, becoming westerly 15 knots in the morning. Rough sea easing. Moderate northeast swell. Sunday: Northwest 15 knots. Moderate easterly swell. Monday: Northwest 10 knots, turning southwest 15 knots early. Moderate easterly swell easing.

Portland

Thursday : Northeast 10 knots. Sea slight. Southerly swell 2 metres offshore easing. Easterly swell 2 metres. Friday : Northeast 10 knots, rising to 20 knots in the morning, then rising to northerly 35 knots in the afternoon. Sea becoming very rough. Southwest swell rising to 2 metres. Northeast swell rising to 2 metres. Poor visibility in rain developing in the evening.

Outlook following 3 days: Saturday: Northerly 25 knots but northeast 35 knots south of Mahia Peninsula. Becoming northwest 20 knots everywhere in the morning. Very rough sea in the south easing. Heavy northeast swell, but moderate northeast swell north of East Cape. Sunday: Westerly 15 knots, becoming northerly 15 knots early. Heavy northeast swell, but moderate northeast swell north of East Cape, becoming moderate easterly swell everywhere. Monday: Northerly 15 knots, becoming westerly 10 knots later. Moderate easterly swell.

Puysegur

Thursday : Northerly 20 knots, changing northeast 15 knots but northerly 30 knots north of West Cape in the evening. Sea becoming rough in the north. Very long period northerly swell 2 metres. Southwest swell 2 metres offshore. Poor visibility in rain. Friday : Northeast 15 knots but northerly 30 knots west of West Cape. Becoming easterly 25 knots everywhere in the afternoon. Sea becoming rough everywhere in the afternoon. Long period southwest swell rising to 4 metres offshore. Poor visibility in rain, clearing in the morning.

Outlook following 3 days: Saturday: Northeast 20 knots, rising to 30 knots in the morning. Becoming northerly 15 knots but 25 knots west of West Cape in the evening. Sea becoming rough. Moderate northwest swell. Sunday: Northerly 15 knots but 25 knots west of West Cape. Becoming northeast 25 knots everywhere early. Sea rough. Northwest swell becoming heavy. Monday: Becoming northwest 25 knots early. Easing to westerly 15 knots west of West Cape late. Sea rough. Heavy westerly swell easing.

Raglan

Thursday : Northeast 25 knots. Sea rough. Very long period northwest swell 2 metres offshore easing. Southwest swell 1 metre. Fair visibility in showers. Friday : Northeast 25 knots, rising to 35 knots in the morning. Becoming northwest 20 knots in the evening. Sea becoming very rough for a time. Long period southwest swell rising to 2 metres. Northwest swell 1 metre easing. Poor visibility in rain, heavy at times.

Outlook following 3 days: Saturday: Westerly 20 knots. Westerly swell becoming heavy. Sunday: Northwest 20 knots. Heavy westerly swell. Monday: Westerly 20 knots, easing to 10 knots later. Heavy westerly swell easing.

Rangitata

Thursday : Northeast 20 knots, but northerly 10 knots inshore. Moderate sea offshore. Northeast swell 2 metres. Southwest swell 1 metre easing. Friday : Northeast 15 knots, rising to 35 knots in the afternoon, then to 45 knots in the evening. Sea becoming high. Northeast swell rising to 3 metres. Southwest swell rising to 2 metres. Poor visibility in periods of rain from afternoon. Possible fog offshore.

Outlook following 3 days: Saturday: Northeast 35 knots, easing to 25 knots in the morning, then to northerly 15 knots inshore in the afternoon. Very rough sea easing. Heavy easterly swell easing. Sunday: Becoming northerly 20 knots everywhere early. Rough sea offshore easing. Moderate easterly swell. Monday: Northerly 20 knots, becoming westerly 10 knots early. Becoming northerly 15 knots later. Moderate easterly swell.

Stephens

Thursday : Northerly 15 knots, but 25 knots about Cape Egmont. Rising to northerly 35 knots about Cape Egmont in the evening. Sea becoming very rough near Cape Egmont. West of Farewell Spit to Hawera: very long period northerly swell 3 metres offshore easing. Southwest swell 1 metre. East of Farewell Spit to Hawera: northwest swell 1 metre easing. Fair visibility in showers, clearing in the east before evening. Friday : Northeast 15 knots but 35 knots west of Farewell Spit to Hawera. Rising to northeast 25 knots but 35 knots in the west in the morning, then rising to 40 knots but 50 knots in the west in the afternoon. Becoming northeast 40 knots but northwest 20 knots in the west early evening, easing to northwest 20 knots everywhere late evening. Sea becoming high for a time in the west. West of Farewell Spit to Hawera: Long period southwest swell rising to 2 metres. Northwest swell 1 metre easing. East of Farewell Spit to Hawera: Northwest swell rising to 2 metres. Poor visibility in periods of rain. Possible thunderstorms in the west from late evening.

Outlook following 3 days: Saturday: Northwest 20 knots. Moderate northwest swell. Sunday: Northwest 25 knots. Sea rough. Westerly swell becoming heavy. Monday: Northwest 25 knots. Sea rough. Heavy westerly swell easing.

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