Coastal Forecasts

Plenty

Warning: Nil

Sunday: Northwest 25 knots, easing to 15 knots in the afternoon. Rough sea easing. Northerly swell rising to 2 metres for a time. Poor visibility in rain, turning showers in the afternoon. Possible morning and afternoon thunderstorms.

Monday: Northerly 20 knots, easing to 10 knots in the evening. Moderate northerly swell.

Tuesday: Northwest 15 knots. Moderate northerly swell easing.

Wednesday: Westerly 15 knots, turning southerly 20 knots later.

Issued: 3:10am Sunday 19 Apr 2026

Colville

Warning: Gale warning

Sunday: Northwest 35 knots, easing to 20 knots in the morning. Very rough sea easing. Northerly swell rising to 2 metres for a time. Poor visibility in rain and thunderstorms in the morning, then showers. Possible thunderstorms again from afternoon.

Monday: Northwest 20 knots, easing to 10 knots in the evening. Moderate northerly swell.

Tuesday: Northwest 15 knots. Moderate northerly swell easing.

Wednesday: Westerly 15 knots, changing southeast 20 knots later.

Issued: 3:10am Sunday 19 Apr 2026

Brett

Warning: Nil

Sunday: Northwest 15 knots, rising to 25 knots late evening. Sea becoming rough. Northerly swell rising to 2 metres for a time. Poor visibility in showers. Possible thunderstorms from afternoon.

Monday: Northwest 25 knots, easing to 15 knots in the afternoon. Rough sea easing. Moderate northwest swell.

Tuesday: Westerly 15 knots. Moderate northwest swell easing.

Wednesday: Westerly 15 knots, turning southerly 15 knots later.

Issued: 3:10am Sunday 19 Apr 2026

Kaipara

Warning: Nil

Sunday: Northwest 30 knots, easing to 20 knots in the morning. Rough sea easing. Long period southwest swell 3 metres but rising to 4 metres south of Cape Reinga. Northwest swell 1 metre easing. Poor visibility in showers. Possible thunderstorms from afternoon.

Monday: Northwest 25 knots, easing to 15 knots in the morning. Rough sea easing. Heavy westerly swell easing.

Tuesday: Westerly 10 knots. Moderate southwest swell.

Wednesday: Southwest 10 knots, rising to southerly 25 knots early. Sea becoming rough. Moderate southwest swell, becoming heavy southwest swell south of Cape Reinga.

Issued: 3:10am Sunday 19 Apr 2026

Raglan

Warning: Nil

Sunday: Northerly 15 knots. Sea slight. Long period southwest swell rising to 4 metres. Northwest swell 2 metres easing. Poor visibility in showers. Possible thunderstorms from afternoon.

Monday: Northeast 20 knots, easing to 10 knots in the afternoon. Heavy westerly swell easing.

Tuesday: Easterly 10 knots, becoming southerly 15 knots but southeast 30 knots south of Kawhia Harbour early. Sea becoming rough in the south. Moderate southwest swell.

Wednesday: Becoming southeast 40 knots but southerly 30 knots south of Kawhia Harbour early. Sea becoming very rough. Moderate southwest swell easing.

Issued: 3:10am Sunday 19 Apr 2026

Stephens

Warning: Nil

Sunday: Northerly 15 knots, turning easterly 15 knots in the evening. Sea slight. West of Farewell Spit to Hawera: Long period southwest swell 3 metres rising to 4 metres. Northerly swell 2 metres, easing. Elsewhere: Westerly swell 2 metres. Poor visibility in showers. Possible thunderstorms in the north.

Monday: Northeast 15 knots, rising to southeast 30 knots in the morning, then to 40 knots in the afternoon. Sea becoming very rough. Moderate westerly swell dying out.

Tuesday: Southeast 40 knots, becoming southerly 30 knots but 40 knots east of Farewell Spit to Hawera late. Sea very rough.

Wednesday: Becoming southeast 45 knots but southerly 35 knots east of Farewell Spit to Hawera early. Sea becoming high.

Issued: 3:10am Sunday 19 Apr 2026

Cook

Warning: Nil

Sunday: Northerly 20 knots, turning southerly 20 knots in the evening. Sea moderate. Poor visibility in showers.

Monday: Southerly 25 knots, rising to 40 knots in the afternoon. Sea becoming very rough. Southerly swell becoming heavy.

Tuesday: Southerly 45 knots. Sea high. Heavy southerly swell.

Wednesday: Southerly 45 knots, easing to 35 knots later. High sea easing. Heavy southerly swell easing.

Issued: 3:10am Sunday 19 Apr 2026

Castlepoint

Warning: Nil

Sunday: Northerly 25 knots, easing to 15 knots in the morning. Becoming variable 10 knots in the evening. Rough sea easing. Northerly swell rising to 2 metres. Fair visibility in showers.

Monday: Southeast 15 knots, rising to 25 knots in the morning. Becoming southeast 20 knots but 35 knots south of Cape Palliser in the afternoon. Sea becoming very rough in the south. Easterly swell becoming moderate.

Tuesday: Southeast 20 knots but 35 knots south of Cape Palliser. Becoming southerly 35 knots everywhere late. Sea very rough. Easterly swell becoming heavy.

Wednesday: Southerly 40 knots, easing to 30 knots later. Very rough sea easing. Heavy southerly swell.

Issued: 3:10am Sunday 19 Apr 2026

Portland

Warning: Gale warning

Sunday: Northerly 35 knots. Easing to 15 knots south of Mahia Peninsula in the morning, then to 25 knots in the north in the afternoon. Easing to variable 10 knots in the south in the evening. Very rough sea easing. Northerly swell rising to 2 metres. Poor visibility in periods of rain. Possible morning and afternoon thunderstorms north of Tolaga Bay.

Monday: Northerly 25 knots but variable 10 knots south of Mahia Peninsula. Becoming northerly 10 knots everywhere in the morning, rising to 20 knots in the afternoon. Rough sea easing. Moderate northeast swell easing.

Tuesday: Northwest 20 knots, easing to westerly 10 knots south of Mahia Peninsula late. Moderate southerly swell developing, but moderate northwest swell north of East Cape.

Wednesday: Becoming westerly 30 knots but southerly 35 knots south of Mahia Peninsula early. Sea becoming very rough in the south. Moderate southerly swell, but moderate northwest swell north of East Cape, becoming heavy southerly swell everywhere.

Issued: 3:10am Sunday 19 Apr 2026

Abel

Warning: Nil

Sunday: Variable 10 knots. Sea slight. Northerly swell 1 metre easing. Poor visibility in showers.

Monday: Southeast 15 knots, rising to 25 knots in the morning, then to 35 knots north of Separation Point in the afternoon. Sea becoming very rough in the north.

Tuesday: Becoming southerly 30 knots everywhere early, easing to 20 knots later. Very rough sea in the north easing.

Wednesday: Southerly 20 knots.

Issued: 3:10am Sunday 19 Apr 2026

Grey

Warning: Nil

Sunday: Northerly 20 knots but easterly 20 knots inshore, turning easterly 20 knots everywhere in the afternoon. Sea moderate. Long period southwest swell 4 metres easing. Fair visibility in showers, clearing inshore in the afternoon. Possible morning thunderstorms.

Monday: Easterly 20 knots, easing to 10 knots inshore in the morning. Becoming southeast 20 knots everywhere in the afternoon. Moderate southwest swell easing.

Tuesday: Southeast 25 knots, becoming southerly 10 knots but southeast 20 knots offshore late. Rough sea easing.

Wednesday: Southerly 10 knots but southeast 20 knots offshore. Becoming southeast 20 knots everywhere early.

Issued: 3:10am Sunday 19 Apr 2026

Milford

Warning: Nil

Sunday: Northeast 15 knots. Turning southeast 15 knots in the afternoon, rising to 25 knots late evening. Sea becoming rough. Long period southwest swell 4 metres easing. Fair visibility in showers and possible thunderstorms, clearing in the morning.

Monday: Southeast 20 knots. Moderate southwest swell easing.

Tuesday: Southeast 15 knots. Southwest swell becoming moderate.

Wednesday: Southeast 20 knots, easing to 10 knots early. Moderate southwest swell easing.

Issued: 3:10am Sunday 19 Apr 2026

Puysegur

Warning: Gale warning

Sunday: Southeast 15 knots, rising to 25 knots in the afternoon, then to 35 knots north of West Cape in the evening. Sea becoming very rough in the north. Long period southwest swell 5 metres easing. Fair visibility in evening rain.

Monday: Southeast 25 knots but 35 knots north of West Cape. Sea very rough in the north. Moderate southerly swell.

Tuesday: Southeast 25 knots but 35 knots west of West Cape. Sea very rough in the west. Moderate southeast swell.

Wednesday: Southeast 20 knots but 30 knots west of West Cape. Becoming easterly 10 knots in the east late. Rough sea in the west easing. Moderate southerly swell.

Issued: 3:10am Sunday 19 Apr 2026

Foveaux

Warning: Nil

Sunday: Southeast 15 knots, rising to 25 knots in the evening. Sea becoming rough. Southwest swell 2 metres. Fair visibility in evening rain.

Monday: Southeast 25 knots. Sea rough. Moderate southerly swell.

Tuesday: Southeast 20 knots. Moderate southeast swell.

Wednesday: Southeast 20 knots, easing to southerly 10 knots early. Moderate southeast swell.

Issued: 3:10am Sunday 19 Apr 2026

Chalmers

Warning: Nil

Sunday: Southerly 10 knots, rising to 20 knots in the evening. Sea becoming moderate. Southwest swell 1 metre. Northeast swell 1 metre. Fair visibility in scattered rain from afternoon.

Monday: Southeast 20 knots. Southerly swell becoming moderate.

Tuesday: Southeast 20 knots. Moderate southeast swell.

Wednesday: Southerly 20 knots, easing to 10 knots late. Moderate southeast swell.

Issued: 3:10am Sunday 19 Apr 2026

Rangitata

Warning: Nil

Sunday: Southwest 15 knots but northerly 15 knots north of the Rakaia River, becoming southerly 20 knots everywhere in the afternoon. Sea becoming moderate. Northeast swell 1 metre. Poor visibility in scattered rain developing in the morning. Possible morning thunderstorms.

Monday: Southeast 25 knots. Sea rough. Moderate southeast swell developing.

Tuesday: Southeast 25 knots. Sea rough. Moderate southeast swell.

Wednesday: Southerly 25 knots, easing to 15 knots late. Rough sea easing. Moderate southeast swell.

Issued: 6:37am Sunday 19 Apr 2026

Conway

Warning: Nil

Sunday: Northerly 15 knots, easing to variable 10 knots in the morning, then southerly 20 knots developing in the afternoon. Sea becoming moderate. Northeast swell 1 metre. Poor visibility in scattered rain developing in the afternoon.

Monday: Southerly 20 knots, rising to southeast 35 knots in the morning. Easing to southerly 25 knots in the evening. Sea becoming very rough for a time. Moderate southeast swell developing.

Tuesday: Southerly 25 knots, becoming southerly 30 knots but 40 knots north of Kaikoura Peninsula early. Sea becoming very rough in the north. Southeast swell becoming heavy.

Wednesday: Becoming southerly 30 knots everywhere early. Very rough sea in the north easing. Heavy southeast swell easing.

Issued: 3:10am Sunday 19 Apr 2026

Chatham Islands

Warning: Nil

Sunday: Northerly 30 knots. Sea rough. Northerly swell rising to 3 metres. Southwest swell 1 metre. Showers, turning to poor visibility in rain at night.

Monday: Northerly 20 knots. Changing southeast 25 knots in the afternoon. Sea becoming rough. Moderate northwest swell dying out. Moderate southerly swell developing.

Tuesday: Southeast 30 knots, easing to easterly 15 knots late. Rough sea easing. Moderate southeast swell.

Wednesday: Northeast 15 knots, easing to variable 10 knots early. Becoming southerly 35 knots later. Sea becoming very rough. Southeast swell becoming heavy.

Issued: 3:10am Sunday 19 Apr 2026