Coastal Weather

Issued at 10:10 on Friday 18 July 2025. Valid for Friday.

Valid from 10:10 on Friday 18 July 2025 until 00:12 on Sunday 20 July 2025.

Abel

Friday : Variable 10 knots. Westerly 15 knots developing north of Separation Point in the evening. Sea slight. Saturday : Variable 10 knots but westerly 15 knots. Becoming variable 10 knots everywhere in the morning. Southeast 15 knots developing in the north in the evening. Sea slight.

Outlook following 3 days: Sunday: Southeast 10 knots. Monday: Variable 10 knots. Tuesday: Variable 10 knots.

Brett

Friday : Southwest 25 knots, easing to 15 knots in the afternoon. Rough sea easing. Northwest swell 1 metre, easing. Southeast swell 1 metre developing. Saturday : Southerly 15 knots, easing to variable 10 knots in the morning. Sea slight. Southeast swell 1 metre.

Outlook following 3 days: Sunday: Southerly 10 knots. Monday: Southerly 10 knots, rising to southeast 20 knots early. Tuesday: Southeast 15 knots.

Castlepoint

Friday : Southeast 15 knots, easing to variable 10 knots in the evening. Sea slight. Southeast swell 2 metres. Saturday : Variable 10 knots. Southerly 15 knots developing in the evening south of Cape Palliser. Sea slight. Southeast swell 2 metres at times.

Outlook following 3 days: Sunday: Southerly 10 knots, rising to 20 knots in the morning. Southeast swell becoming moderate. Monday: Southerly 15 knots. Moderate southeast swell easing. Tuesday: Southwest 20 knots. Southeast swell becoming moderate.

Chalmers

Friday : Northerly 15 knots. Sea slight. Long period southwest swell 2 metres. Southeast swell 1 metre. Saturday : Northerly 15 knots, changing westerly 15 knots early morning. Becoming variable 10 knots in the evening. Sea slight. Long period southwest swell 2 metre. Southeast swell 1 metre.

Outlook following 3 days: Sunday: Variable 10 knots. Moderate southerly swell. Monday: Northerly 10 knots, becoming westerly 20 knots later. Moderate southwest swell. Tuesday: Westerly 20 knots. Moderate southwest swell.

Chatham Islands

Friday : Southeast 15 knots. Sea slight. Very long period southwest swell 2 metres. Easterly swell 2 metres. Poor visibility in occasional rain. Saturday : Southerly 15 knots, rising to 25 knots in the evening. Sea becoming rough. Very long period southwest swell 2 metres. Easterly swell 2 metres, easing. Poor visibility in evening rain.

Outlook following 3 days: Sunday: Southerly 20 knots. Moderate southerly swell. Monday: Southerly 20 knots, rising to 30 knots early. Sea becoming rough. Moderate southerly swell. Tuesday: Southerly 25 knots, rising to southwest 35 knots for a time in the morning. Sea becoming very rough for a time. Southerly swell becoming heavy.

Colville

Friday : Southwest 25 knots, easing to 15 knots in the evening. Rough sea easing. Northwest swell 1 metre, easing. Southeast swell 1 metre developing. Saturday : Southwest 15 knots, easing to variable 10 knots in the morning. Sea slight. Southeast swell 1 metre.

Outlook following 3 days: Sunday: Southerly 10 knots. Monday: Southerly 15 knots. Tuesday: Southerly 15 knots.

Conway

Friday : Northeast 15 knots. Sea slight. Southeast swell 2 metres. Saturday : Variable 10 knots. Southerly 20 knots developing north of Kaikoura Peninsula in the evening. Sea becoming moderate in the north. Southeast swell 2 metres at times. Fair visibility in scattered showers from afternoon.

Outlook following 3 days: Sunday: Southerly 15 knots. Monday: Southwest 10 knots. Tuesday: Southwest 15 knots. Southeast swell becoming moderate.

Cook

Friday : Southerly 15 knots, easing to variable 10 knots in the afternoon. Northerly 15 knots developing late evening. Sea slight. Southerly swell 1 metre. Saturday : Northwest 15 knots, easing to variable 10 knots in the morning. Southerly 15 knots developing late afternoon, and rising to 25 knots in the evening. Sea becoming rough. Southerly swell 1 metre. Fair visibility in a few evening showers.

Outlook following 3 days: Sunday: Southerly 20 knots. Monday: Southerly 20 knots, becoming westerly 10 knots early. Tuesday: Southwest 10 knots, rising to southerly 20 knots early, easing to 10 knots late.

Foveaux

Friday : Northwest 15 knots, rising to 25 knots for a time late afternoon and evening. Sea becoming rough. Long period southwest swell 3 metres offshore. Poor visibility in occasional evening rain. Saturday : Westerly 20 knots, easing to 10 knots in the evening. Moderate sea easing. Long period southwest swell 3 metres offshore. Poor visibility in early rain.

Outlook following 3 days: Sunday: Northwest 10 knots. Moderate southwest swell. Monday: Northwest 15 knots, rising to westerly 25 knots early. Easing to southwest 15 knots late. Sea becoming rough for a time. Moderate southwest swell. Tuesday: Westerly 20 knots. Moderate southwest swell.

Grey

Friday : Variable 10 knots. Northeast 15 knots developing inshore late evening. Sea slight. Very long period southwest swell 3 metres. Poor visibility in evening rain south of Abut Head. Saturday : Westerly 15 knots, but northeast 15 knots inshore. Changing southwest 15 knots offshore in the morning. Becoming variable 10 knots everywhere in the evening. Sea slight. Very long period southwest swell 3 metres. Poor visibility in morning rain.

Outlook following 3 days: Sunday: Southwest 10 knots. Moderate southwest swell. Monday: Southwest 10 knots, rising to 20 knots later. Moderate southwest swell. Tuesday: Southwest 20 knots, easing to variable 10 knots early. Moderate southwest swell.

Kaipara

Friday : Southwest 20 knots. Sea moderate. Very long period southwest swell rising to 3 metres at times. Saturday : Southwest 15 knots, easing to variable 10 knots in the morning. Sea slight. Very long period southwest swell 3 metres, easing.

Outlook following 3 days: Sunday: Southeast 10 knots. Moderate southwest swell. Monday: Southeast 10 knots, rising to 20 knots early. Moderate southwest swell. Tuesday: Southeast 15 knots. Moderate southwest swell.

Milford

Friday : Northeast 20 knots but northwest 20 knots offshore. Becoming northwest 20 knots everywhere in the afternoon. Turning southwest 15 knots in the evening. Moderate sea easing. Very long period southwest swell 3 metres. Poor visibility in occasional rain. Saturday : Southwest 15 knots, easing to variable 10 knots in the morning. Sea slight. Very long period southwest swell 3 metres. Poor visibility in early rain.

Outlook following 3 days: Sunday: Westerly 10 knots. Moderate westerly swell. Monday: Northwest 10 knots, turning southwest 15 knots early. Westerly swell becoming heavy for a time. Tuesday: Southwest 20 knots, easing to 10 knots late. Southwest swell becoming heavy for a time.

Plenty

Friday : Southerly 30 knots, easing to southwest 20 knots in the afternoon. Rough sea easing. Northwest 1 metre, easing. Easterly swell 1 metre developing. Saturday : Southwest 15 knots, becoming variable 10 knots in the evening. Sea slight. Easterly swell 1 metre.

Outlook following 3 days: Sunday: Southerly 10 knots. Monday: Southwest 10 knots, rising to southerly 20 knots early, easing to 10 knots later. Tuesday: Southerly 15 knots.

Portland

Friday : Southeast 25 knots but 35 knots north of Mahia Peninsula, easing to 15 knots but 25 knots in the north in the evening. Sea very rough in the north, easing. Southeast swell 3 metres, easing. Northwest swell 1 metre north of East Cape, easing. Saturday : Southerly 20 knots, easing to 10 knots in the afternoon. Moderate sea easing. Southeast swell 2 metres at times.

Outlook following 3 days: Sunday: Southerly 10 knots, rising to southwest 20 knots in the morning. Moderate southeast swell. Monday: Southerly 25 knots. Sea rough. Moderate southerly swell. Tuesday: Southwest 20 knots, rising to southerly 30 knots early. Sea becoming rough. Moderate southerly swell.

Puysegur

Friday : Northerly 25 knots, changing westerly 25 knots in the evening. Sea rough. Very long period southwest swell 3 metres. Poor visibility in occasional rain. Saturday : Westerly 20 knots, easing to variable 10 knots in the afternoon. Northwest 15 knots developing in the evening. Moderate sea easing. Very long period southwest swell 3 metres. Poor visibility in early rain.

Outlook following 3 days: Sunday: Northwest 15 knots, rising to 25 knots in the morning, easing to 15 knots in the evening. Sea becoming rough for a time. Westerly swell becoming heavy. Monday: Northwest 15 knots, rising to westerly 25 knots early, easing to 15 knots late. Sea becoming rough for a time. Heavy westerly swell. Tuesday: Westerly 20 knots, easing to northwest 10 knots west of West Cape late. Heavy westerly swell easing.

Raglan

Friday : Southwest 15 knots. Sea slight. Very long period southwest swell rising to 3 metres at times. Saturday : Southwest 15 knots, easing to variable 10 knots in the morning. Sea slight. Very long period southwest swell 3 metres, easing.

Outlook following 3 days: Sunday: Variable 10 knots, becoming southerly 15 knots in the afternoon. Moderate southwest swell. Monday: Southerly 15 knots. Moderate southwest swell. Tuesday: Southerly 15 knots. Moderate southwest swell.

Rangitata

Friday : Northerly 15 knots. Sea slight. Southeast swell 2 metres. Saturday : Northerly 15 knots, turning southwest 15 knots early morning. Becoming variable 10 knots in the afternoon. Sea slight. Southeast swell 2 metres at times. Fair visibility in a few showers.

Outlook following 3 days: Sunday: Variable 10 knots. Moderate southeast swell easing. Monday: Northwest 10 knots. Tuesday: Westerly 15 knots. Southeast swell becoming moderate.

Stephens

Friday : Southeast 20 knots, turning westerly 15 knots in the afternoon. Moderate sea easing. West of Farewell Spit to Hawera: Very long period southwest swell rising to 3 metres at times. East of Farewell Spit to Hawera: Long period westerly swell rising to 2 metres. Saturday : Westerly 10 knots, changing southeast 10 knots early evening, rising to 20 knots late evening. Sea becoming moderate. West of Farewell Spit to Hawera: Very long period southwest swell 3 metres, easing. East of Farewell Spit to Hawera: Long period westerly swell 2 metres at times.

Outlook following 3 days: Sunday: Southeast 15 knots. Westerly swell becoming moderate. Monday: Southerly 20 knots, easing to variable 10 knots east of Farewell Spit to Hawera late. Moderate westerly swell. Tuesday: Southeast 10 knots but 20 knots west of Farewell Spit to Hawera. Moderate westerly swell.

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