Coastal Weather

Issued at 15:27 on Thursday 19 March 2026.

Abel

Thursday 19 March

Variable 10 knots but southeast 25 knots north of Separation Point. Easing to 15 knots in the north in the evening. Sea becoming rough for a time in the north.

Friday 20 March

Variable 10 knots but southeast 15 knots north of Separation Point. Sea slight.

Saturday 21 March

Southeast 10 knots but 20 knots north of Separation Point. Becoming easterly 10 knots everywhere in the morning.

Sunday 22 March

Variable 10 knots.

Monday 23 March

Becoming variable 10 knots but easterly 20 knots north of Separation Point early.

Brett

Thursday 19 March

Southeast 20 knots. Easing to variable 10 knots but turning southwest 15 knots south of Whangaroa Harbour in the evening. Moderate sea easing. Easterly swell 2 metres.

Friday 20 March

Variable 10 knots but southwest 15 knots south of Whangaroa Harbour. Becoming variable 10 knots everywhere in the morning. Sea slight. Easterly swell 2 metres.

Saturday 21 March

Variable 10 knots. Moderate easterly swell easing.

Sunday 22 March

Northeast 10 knots.

Monday 23 March

Northeast 10 knots, rising to easterly 20 knots early. Easterly swell becoming moderate.

Castlepoint

Thursday 19 March

Southeast 15 knots, easing to variable 10 knots south of Flat Point in the evening. Sea slight. Southwest swell 1 metre. Easterly swell 1 metre. Fair visibility in showers north of Cape Palliser.

Friday 20 March

Southeast 15 knots but variable 10 knots south of Flat Point. Becoming southerly 20 knots everywhere in the morning. Sea becoming moderate. Southwest swell 1 metre. Easterly swell rising to 2 metres. Fair visibility in showers north of Cape Palliser.

Saturday 21 March

Southerly 20 knots, easing to 10 knots in the morning. Moderate southeast swell.

Sunday 22 March

Variable 10 knots. Moderate southeast swell easing.

Monday 23 March

Variable 10 knots, becoming northeast 15 knots later.

Chalmers

Thursday 19 March

Northeast 15 knots easing to variable 10 knots early evening. Sea slight. Southwest swell 2 metres offshore.

Friday 20 March

Variable 10 knots. Northeast 15 knots developing in the evening. Sea slight. Southwest swell 2 metres offshore.

Saturday 21 March

Northeast 15 knots. Moderate southwest swell easing.

Sunday 22 March

Northwest 10 knots, changing southerly 20 knots early. Becoming easterly 10 knots late. Southerly swell becoming moderate.

Monday 23 March

Northeast 15 knots. Moderate southwest swell easing.

Chatham Islands

Weather warning: Gale warning

Thursday 19 March

Northeast 15 knots. Sea slight. Southwest swell 1 metre. Northeast swell rising to 2 metres.

Friday 20 March

Easterly 15 knots, rising to southeast 25 knots in the morning, then to 35 knots in the afternoon. Sea becoming very rough. Southwest swell rising to 2 metres. Northeast swell rising to 4 metres. Poor visibility in rain from morning.

Saturday 21 March

Southeast 35 knots, easing to 20 knots in the afternoon. Very rough sea easing. Heavy southerly swell easing.

Sunday 22 March

Southerly 20 knots. Moderate southerly swell.

Monday 23 March

Southerly 20 knots, easing to 10 knots late. Moderate southwest swell.

Colville

Thursday 19 March

Southerly 20 knots. Sea moderate. Easterly swell 3 metres offshore. Fair visibility in showers offshore.

Friday 20 March

Southerly 20 knots. Easing to variable 10 knots by midday. Moderate sea easing. Easterly swell 3 metres offshore, easing.

Saturday 21 March

Northeast 10 knots.

Sunday 22 March

Northeast 10 knots.

Monday 23 March

Easterly 10 knots, rising to 20 knots early. Easterly swell becoming moderate.

Conway

Thursday 19 March

Variable 10 knots but northeast 15 knots south of Kaikoura Peninsula. Becoming variable 10 knots everywhere late evening. Sea slight. Southwest swell 1 metre. Easterly swell 1 metre developing.

Friday 20 March

Variable 10 knots. Southerly 15 knots developing north of Kaikoura Peninsula for a time in the afternoon and evening. Sea slight. Southwest swell 1 metre. Easterly swell rising to 2 metres.

Saturday 21 March

Variable 10 knots. Northeast 15 knots developing in the afternoon. Moderate easterly swell easing.

Sunday 22 March

Northeast 15 knots, easing to variable 10 knots later.

Monday 23 March

Southerly 10 knots, changing northeast 15 knots early.

Cook

Thursday 19 March

Southerly 30 knots, easing to 15 knots in the evening. Rough sea easing. Southerly swell 1 metre.

Friday 20 March

Southerly 15 knots, rising to 25 knots for a time in the afternoon and evening. Sea becoming rough for a time. Southerly swell 1 metre.

Saturday 21 March

Southeast 15 knots, easing to variable 10 knots in the evening.

Sunday 22 March

Variable 10 knots, becoming southerly 15 knots later.

Monday 23 March

Southeast 15 knots, easing to variable 10 knots later.

Foveaux

Thursday 19 March

Westerly 15 knots. Sea slight. Southwest swell 2 metres.

Friday 20 March

Westerly 15 knots, easing to variable 10 knots in the morning. Northeast 15 knots developing east of Slope Point in the evening. Sea slight. Long period southwest swell 2 metres. Fair visibility in morning and afternoon showers.

Saturday 21 March

Variable 10 knots but northwest 15 knots east of Slope Point. Westerly 25 knots developing west of Slope Point to Shelter Point in the afternoon. Sea becoming rough in the west. Moderate southwest swell.

Sunday 22 March

Becoming westerly 20 knots everywhere early, turning southerly 15 knots in the morning. Turning northeast 10 knots late. Rough sea in the west easing. Moderate southwest swell.

Monday 23 March

Northerly 10 knots. Moderate southwest swell easing.

Grey

Thursday 19 March

Variable 10 knots. Sea slight. Southwest swell 2 metres. Fair visibility in showers, clearing evening.

Friday 20 March

Variable 10 knots. Sea slight. Long period southwest swell 2 metres.

Saturday 21 March

Variable 10 knots. Moderate southwest swell.

Sunday 22 March

Variable 10 knots, becoming southwest 15 knots early. Moderate southwest swell.

Monday 23 March

Westerly 10 knots. Moderate southwest swell.

Kaipara

Thursday 19 March

Southerly 15 knots, easing to variable 10 knots in the evening. Sea slight. Long period southwest swell 1 metre. North of Cape Reinga: Easterly swell 2 metres.

Friday 20 March

Variable 10 knots. Southeast 15 knots developing for a time in the afternoon and evening south of Tauroa Point. Sea slight. Southwest swell rising to 2 metres. North of Cape Reinga: Easterly swell 2 metres.

Saturday 21 March

Variable 10 knots. Southwest swell becoming moderate.

Sunday 22 March

Variable 10 knots, becoming southeast 15 knots later. Moderate southwest swell.

Monday 23 March

Easterly 10 knots, rising to 20 knots early. Moderate southwest swell easing.

Milford

Thursday 19 March

Southwest 15 knots. Sea slight. Southwest swell 2 metres.

Friday 20 March

Southwest 15 knots, rising to 25 knots for a time late afternoon and in the evening south of Milford Sound. Sea becoming rough for a time in the south. Long period southwest swell 2 metres.

Saturday 21 March

Southwest 20 knots, easing to 10 knots in the morning. Moderate southwest swell.

Sunday 22 March

Southwest 15 knots. Moderate southwest swell.

Monday 23 March

Southwest 15 knots, changing northerly 10 knots early. Moderate southwest swell.

Plenty

Thursday 19 March

Southerly 15 knots but 25 knots offshore. Sea rough offshore. Easterly swell 3 metres offshore. Fair visibility in showers offshore.

Friday 20 March

Southerly 15 knots but 25 knots offshore. Easing to variable 10 knots in the afternoon. Southeast 15 knots developing for a time in the afternoon and evening. Sea rough offshore, easing. Easterly swell 3 metres offshore, easing. Fair visibility in showers.

Saturday 21 March

Southeast 10 knots.

Sunday 22 March

Easterly 10 knots.

Monday 23 March

Easterly 10 knots, rising to 20 knots early.

Portland

Weather warning: Gale warning

Thursday 19 March

Southerly 20 knots but 35 knots in the north. Sea very rough in the north. Easterly swell 3 metres developing. Southwest swell 1 metre. North of East Cape: Easterly swell rising to 4 metres. Poor visibility in rain.

Friday 20 March

Southerly 20 knots but 35 knots north of Mahia Peninsula. Becoming southerly 30 knots everywhere by midday. Easing to southwest 20 knots in the south in the evening. Very rough sea in the north easing. Easterly swell 3 metres. Southwest swell 1 metre. North of East Cape: Easterly swell 4 metres, easing. Poor visibility in rain.

Saturday 21 March

Southerly 30 knots but southwest 20 knots south of Mahia Peninsula. Becoming southerly 15 knots everywhere in the morning. Rough sea easing. Moderate southeast swell.

Sunday 22 March

Southerly 10 knots. Moderate southeast swell.

Monday 23 March

Southeast 15 knots, rising to 25 knots north of East Cape early. Sea becoming rough in the north. Moderate southeast swell, dying out north of East Cape.

Puysegur

Thursday 19 March

Variable 10 knots but northwest 20 knots south of West Cape. Sea moderate in the south. Southwest swell 3 metres. Fair visibility in late evening showers.

Friday 20 March

Variable 10 knots but northwest 20 knots south of West Cape. Becoming variable 10 knots everywhere in the morning. Northwest 15 knots developing in the south late evening. Moderate sea in the south easing. Long period southwest swell 3 metres, easing. Fair visibility in showers.

Saturday 21 March

Variable 10 knots but northwest 15 knots south of West Cape. Becoming northwest 25 knots everywhere in the afternoon. Sea becoming rough. Moderate westerly swell.

Sunday 22 March

Northwest 20 knots, turning southerly 15 knots early. Easing to variable 10 knots later. Moderate southwest swell.

Monday 23 March

Northerly 10 knots, rising to northwest 25 knots early. Sea becoming rough. Moderate westerly swell.

Raglan

Thursday 19 March

Southerly 15 knots, easing to variable 10 knots north of Kawhia Harbour in the evening. Sea slight. Long period southwest swell 1 metre.

Friday 20 March

Variable 10 knots but southerly 15 knots south of Kawhia Harbour. Becoming southerly 15 knots everywhere in the evening. Sea slight. Southwest swell rising to 2 metres.

Saturday 21 March

Southeast 15 knots, easing to variable 10 knots in the morning.

Sunday 22 March

Southerly 15 knots.

Monday 23 March

Southeast 10 knots, turning northeast 15 knots early. Southwest swell becoming moderate.

Rangitata

Thursday 19 March

Northeast 15 knots, easing to variable 10 knots in the evening. Sea slight. Southwest swell 2 metres offshore.

Friday 20 March

Variable 10 knots. Sea slight. Southwest swell 2 metres offshore.

Saturday 21 March

Variable 10 knots. Northeast 15 knots developing in the morning. Moderate easterly swell easing.

Sunday 22 March

Northerly 15 knots, easing to variable 10 knots early. Becoming southerly 15 knots later.

Monday 23 March

Southeast 10 knots, turning northeast 15 knots early.

Stephens

Thursday 19 March

Southeast 20 knots. Sea moderate. West of Farewell Spit to Hawera: Southwest swell 2 metres. Elsewhere: westerly swell 1 metre. Fine.

Friday 20 March

Southeast 20 knots. Sea moderate. West of Farewell Spit to Hawera: Southwest swell 2 metres. Elsewhere: westerly swell 1 metre.

Saturday 21 March

Southeast 25 knots, easing to 15 knots in the morning. Rough sea easing.

Sunday 22 March

Southerly 15 knots.

Monday 23 March

Southeast 20 knots, easing to variable 10 knots later.

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