Coastal Weather

Issued at 12:29 on Saturday 17 January 2026.

Abel

Saturday 17 January

Easterly 20 knots but variable 10 knots south of Separation Point. Becoming southeast 30 knots but 20 knots in the south in the afternoon. Sea becoming rough in the north.

Sunday 18 January

Southeast 30 knots but 20 knots south of Separation Point. Sea rough in the north.

Monday 19 January

Southeast 25 knots, easing to 15 knots south of Separation Point in the evening. Rough sea easing in the south.

Tuesday 20 January

Southeast 15 knots but 25 knots north of Separation Point, rising to 30 knots everywhere early. Sea becoming rough everywhere.

Wednesday 21 January

Southeast 25 knots, easing to 15 knots later. Rough sea easing.

Brett

Saturday 17 January

Southeast 15 knots. Sea slight. Northerly swell 1 metre. Poor visibility in late evening showers.

Sunday 18 January

Southeast 20 knots, rising to 30 knots in the morning. Sea becoming rough. Northerly swell 1 metre. Southeast swell 3 metres developing. Poor visibility in showers. Possible early morning thunderstorms.

Monday 19 January

Easterly 30 knots. Sea rough. Moderate southeast swell easing.

Tuesday 20 January

Easterly 30 knots. Sea rough.

Wednesday 21 January

Easterly 25 knots. Sea rough.

Castlepoint

Saturday 17 January

Southerly 20 knots. Sea moderate. Southwest swell rising to 2 metres. Northeast swell rising to 2 metres. Fair visibility in showers.

Sunday 18 January

Southeast 20 knots. Sea moderate. Southerly swell 2 metres. Northeast swell 2 metres easing. Fair visibility in showers.

Monday 19 January

Southeast 20 knots. Moderate southerly swell easing.

Tuesday 20 January

Southeast 15 knots. Moderate southerly swell developing.

Wednesday 21 January

Southeast 15 knots, turning northeast 20 knots early. Moderate southerly swell.

Chalmers

Saturday 17 January

Southerly 15 knots, easing to variable 10 knots in the evening. Sea slight. Southwest swell 1 metre. Southeast swell 1 metre.

Sunday 18 January

Variable 10 knots. Sea slight. Southwest swell 1 metre. Southeast swell 1 metre dying out.

Monday 19 January

Northeast 10 knots.

Tuesday 20 January

Variable 10 knots, becoming easterly 15 knots early. Southwest swell becoming moderate.

Wednesday 21 January

Northeast 15 knots, rising to 25 knots early. Sea becoming rough. Moderate southwest swell easing.

Chatham Islands

Saturday 17 January

Northwest 25 knots, then changing southerly 30 knots in the evening. Sea rough. Southwest swell rising to 4 metres. Northerly swell 2 metres. Poor visibility in evening showers.

Sunday 18 January

Southerly 25 knots, easing to southeast 15 knots late morning. Rough sea easing. Southwest swell 4 metres easing. Northerly swell 2 metres dying out. Poor visibility in morning showers.

Monday 19 January

Southeast 15 knots, turning southwest 10 knots in the evening. Moderate southerly swell easing.

Tuesday 20 January

Southerly 15 knots. Southwest swell becoming moderate.

Wednesday 21 January

Southerly 15 knots, turning easterly 10 knots late. Moderate southerly swell.

Colville

Saturday 17 January

Variable 10 knots. Easterly 15 knots developing in the afternoon, then rising to 25 knots late evening. Sea becoming rough. Northerly swell 1 metre. Poor visibility in evening showers.

Sunday 18 January

Southeast 30 knots. Sea rough. Northerly swell 1 metre. Southeast swell 3 metres developing. Poor visibility in showers.

Monday 19 January

Southeast 30 knots. Sea rough. Moderate southeast swell easing.

Tuesday 20 January

Easterly 30 knots. Sea rough.

Wednesday 21 January

Easterly 30 knots. Sea rough.

Conway

Saturday 17 January

Southwest 20 knots, but 30 knots north of Kaikoura Peninsula. Becoming southerly 20 knots everywhere in the afternoon. Rough sea in the north, easing. Southeast swell 2 metres. Fair visibility in showers.

Sunday 18 January

Southerly 20 knots, easing to southeast 10 knots in the evening. Moderate sea easing. Southerly swell 2 metres easing. Fair visibility in morning showers.

Monday 19 January

Southeast 10 knots.

Tuesday 20 January

Southerly 10 knots. Southerly swell becoming moderate.

Wednesday 21 January

Southeast 10 knots, turning northeast 15 knots early, rising to 25 knots later. Sea becoming rough. Moderate southerly swell easing.

Cook

Saturday 17 January

Southerly 30 knots. Sea rough. Southerly swell 2 metres. Fair visibility in showers.

Sunday 18 January

Southeast 30 knots. Sea rough. Southerly swell 2 metres easing. Fair visibility in showers.

Monday 19 January

Southeast 25 knots. Sea rough.

Tuesday 20 January

Southeast 25 knots. Sea rough.

Wednesday 21 January

Southeast 20 knots, becoming southeast 10 knots but easterly 20 knots south of Cape Terawhiti later.

Foveaux

Saturday 17 January

Southerly 10 knots. Sea slight. Southwest swell rising to 2 metres. Easterly swell 1 metre dying out.

Sunday 18 January

Variable 10 knots. Southeast 20 knots developing about Foveaux Strait in the afternoon. Sea becoming moderate about the Strait. Southwest swell 2 metres easing.

Monday 19 January

Southeast 15 knots.

Tuesday 20 January

Southeast 10 knots, rising to easterly 20 knots later. Southwest swell becoming moderate.

Wednesday 21 January

Northeast 25 knots. Sea rough. Moderate southwest swell easing.

Grey

Saturday 17 January

Easterly 15 knots easing to variable 10 knots in the afternoon. Easterly 20 knots developing about the Grey River mouth in the evening. Sea becoming moderate about the Grey River mouth. Southwest swell 2 metres easing. Poor visibility in showers north of Cape Foulwind.

Sunday 18 January

Variable 10 knots but southeast 20 knots about the Grey River mouth. Sea moderate about the Grey River Mouth. Southwest swell 1 metre. Poor visibility in showers north of Cape Foulwind.

Monday 19 January

Variable 10 knots but southeast 20 knots about the Grey River mouth. Becoming southerly 10 knots everywhere in the morning.

Tuesday 20 January

Variable 10 knots.

Wednesday 21 January

Northeast 10 knots.

Kaipara

Saturday 17 January

Southeast 10 knots rising to 20 knots in the afternoon. Sea becoming moderate. Long period southwest swell 2 metres easing. Fair visibility in evening showers.

Sunday 18 January

Southeast 15 knots, rising to easterly 25 knots in the morning. Sea becoming rough. Southwest swell 1 metre. Easterly swell 2 metres developing north of Cape Reinga. Poor visibility in showers.

Monday 19 January

Easterly 25 knots. Sea rough. Moderate easterly swell north of Cape Reinga, easing.

Tuesday 20 January

Easterly 25 knots. Sea rough.

Wednesday 21 January

Easterly 25 knots. Sea rough.

Milford

Saturday 17 January

Southerly 15 knots, rising to southeast 25 knots inshore in the evening. Sea becoming rough inshore. Southwest swell 2 metres.

Sunday 18 January

Southeast 20 knots, easing to variable 10 knots late morning. Moderate sea easing. Southwest swell 2 metres easing.

Monday 19 January

Variable 10 knots.

Tuesday 20 January

Variable 10 knots.

Wednesday 21 January

Northeast 10 knots.

Plenty

Saturday 17 January

Variable 10 knots. Easterly 15 knots developing in the afternoon, then rising to southeast 25 knots in the evening. Sea becoming rough. Northerly swell 1 metre. Easterly swell 2 metres developing offshore. Poor visibility in showers from afternoon.

Sunday 18 January

Southeast 25 knots. Sea rough. Northerly swell 1 metre. Easterly swell rising to 3 metres offshore. Poor visibility in showers from afternoon.

Monday 19 January

Southeast 30 knots, easing to 20 knots inshore in the evening. Rough sea easing. Moderate easterly swell offshore, easing.

Tuesday 20 January

Southeast 20 knots but easterly 30 knots offshore. Sea rough offshore.

Wednesday 21 January

Easterly 20 knots but 30 knots offshore. Becoming easterly 30 knots everywhere early. Sea becoming rough everywhere.

Portland

Weather warning: Gale warning

Saturday 17 January

Southerly 20 knots, rising to southeast 35 knots north of East Cape in the evening. Sea becoming very rough in the north. Southwest swell rising to 2 metres. Northeast swell rising to 2 metres. Fair visibility in showers.

Sunday 18 January

Southerly 20 knots, but southeast 35 knots north of East Cape. Becoming southeast 25 knots everywhere in the afternoon. Sea very rough in the north, easing. Southerly swell 2 metres. Northeast swell 2 metres easing. Poor visibility in showers.

Monday 19 January

Southeast 25 knots. Sea rough. Moderate southerly swell.

Tuesday 20 January

Southeast 20 knots. Moderate southeast swell.

Wednesday 21 January

Easterly 20 knots. Moderate southerly swell.

Puysegur

Saturday 17 January

Southeast 15 knots, but 30 knots north of West Cape. Sea rough in the north. Southwest swell rising to 2 metres.

Sunday 18 January

Southeast 15 knots, but 30 knots north of West Cape. Sea rough in the north. Southwest swell 2 metres easing.

Monday 19 January

Southeast 10 knots but 30 knots north of West Cape. Sea becoming rough in the north.

Tuesday 20 January

Southeast 15 knots but 25 knots north of West Cape. Becoming easterly 25 knots everywhere early. Sea becoming rough everywhere.

Wednesday 21 January

Easterly 20 knots, changing northwest 10 knots early.

Raglan

Saturday 17 January

Southerly 15 knots, rising to southeast 30 knots in the evening. Sea becoming rough. Long period southwest swell 2 metres easing. Fair visibility in late evening showers.

Sunday 18 January

Southeast 25 knots. Sea rough. Southwest swell 1 metre. Fair visibility in showers.

Monday 19 January

Southeast 20 knots.

Tuesday 20 January

Easterly 25 knots. Sea rough.

Wednesday 21 January

Easterly 25 knots. Sea rough.

Rangitata

Saturday 17 January

Southerly 20 knots easing to 10 knots in the evening. Moderate sea easing. Southeast swell 2 metres.

Sunday 18 January

Variable 10 knots. Sea slight. Southerly swell 2 metres easing.

Monday 19 January

Northeast 10 knots.

Tuesday 20 January

Easterly 10 knots. Southerly swell becoming moderate.

Wednesday 21 January

Northeast 10 knots, rising to 20 knots early. Moderate southerly swell easing.

Stephens

Weather warning: Gale warning

Saturday 17 January

Southeast 25 knots, rising to 35 knots in the evening. Sea becoming very rough. West of Farewell Spit to Hawera: Long period southwest swell 2 metres easing. Southeast swell 3 metres developing. Elsewhere: Southeast swell 1 metre.

Sunday 18 January

Southeast 35 knots. Sea very rough. West of Farewell Spit to Hawera: Southwest swell 1 metre. Southeast swell 3 metres. Elsewhere: Southeast swell 1 metre.

Monday 19 January

Southeast 30 knots. Sea rough. Moderate southeast swell easing.

Tuesday 20 January

Southeast 35 knots. Sea very rough.

Wednesday 21 January

Southeast 30 knots, easing to easterly 20 knots later. Rough sea easing.

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