Okiwi - Whangapoua Estuary Surf Forecast

/ Great Barrier Island (5 surf breaks) /

New Zealand (466 surf breaks) / Lat Long: (36.14° S 175.44° E)

Surf Forecasts:

Okiwi - Whangapoua Estuary surfForecast / Great Barrier Island / New Zealand

12 Day Weather and Surf, issued 12 pm Monday 17 Nov 2025 NZDT

Forecast update in hr min s Forecast update imminent

Okiwi - Whangapoua Estuary surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Okiwi - Whangapoua Estuary sea temperature is 18.2° C
(Which is 1.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Okiwi - Whangapoua Estuary this week:

The surf forecast for Okiwi - Whangapoua Estuary over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Nov 20) at 4AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 0.5m and 13s. Another secondary swell of 0.5m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Okiwi - Whangapoua Estuary in the next 12 days are 3.0m 10s and forecast to arrive on Wednesday (Nov 19) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 7s period and expected on Wednesday (Nov 19) at 7PM.

Wave Type	Time (NZDT) & Date	Wave Height & Period
Next good surf (1 star+)	4AM (Thu 20th Nov)	7ft (2.2m) 10s
Best Surf	4AM (Thu 20th Nov)	7ft (2.2m) 10s
Most Powerful	4AM (Wed 19th Nov)	10ft (3.0m) 10s

Table - best surf conditions forecast for Okiwi - Whangapoua Estuary over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 81mm), heaviest during Tue night. Very mild (max 19°C on Mon night, min 17°C on Mon morning). Winds decreasing (strong winds from the NE on Tue afternoon, light winds from the W by Wed night).									Days 3-6 Weather Summary Heavy rain (total 26mm), heaviest during Fri afternoon. Warm (max 20°C on Thu afternoon, min 17°C on Sat night). Wind will be generally light.
	Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	3	2	1	2	3	1	0	0	0	0	0	0	1	0	0	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	E	E	E	ENE	ENE	ENE	ENE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	NE	NE	NE	NE	NE	NE
Period(s) (?)	10	10	10	10	8	9	10	11	10	10	10	9	9	9	9	9	9	10	10	10	10
Wave Graph (?)
kJ (?)	271	268	268	663	681	1304	1571	1176	1039	798	596	431	307	244	270	247	284	404	416	425	433
Wind (km/h)	ENE	ENE	ENE	NE	NE	NW	NE	N	NW	W	NNE	N	E	NE	NNE	NNE	N	N	E	SE	SE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	on	on	on	cross	on	cross- on	cross	cross- off	on	cross- on	cross- on	on	on	cross- on	cross- on	cross- on	cross- on	cross	cross
High Tide / height (m)		5:54PM 1.79		6:28AM 1.79	6:38PM 1.80		7:11AM 1.84		7:20PM 1.81	7:52AM 1.88		8:01PM 1.82	8:32AM 1.92		8:41PM 1.82	9:11AM 1.93		9:21PM 1.82	9:51AM 1.93		10:01PM 1.79
Low Tide / height (m)	11:46AM 0.49		12:12AM 0.35	12:35PM 0.48		12:55AM 0.32		1:19PM 0.45	1:35AM 0.30		2:02PM 0.43	2:15AM 0.28		2:43PM 0.41	2:55AM 0.27		3:25PM 0.41	3:36AM 0.28		4:06PM 0.42

	Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
Sunrise	6:01	-	-	6:00	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:58	-	-	5:56	-	-
Sunset	-	8:05	-	-	8:06	-	-	8:07	-	-	8:07	-	-	8:08	-	-	8:09	-	-	8:10	-

Rain (mm)	-	-	-	-	25	56	-	-	-	-	-	-	2	14	4	1	-	5	1	-	-
Temp. °C	17	17	19	19	18	19	18	19	19	18	20	20	19	19	19	19	19	20	16	17	18
Feels °C (?)	14	13	17	16	14	14	17	18	18	18	19	20	18	19	19	19	19	20	15	14	18

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

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Information about the Okiwi - Whangapoua Estuary Surf forecast

The above surf forecast table for Okiwi - Whangapoua Estuary provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Okiwi - Whangapoua Estuary can be found by selecting the local surf guide option on the grey menu. Our Okiwi - Whangapoua Estuary surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Okiwi - Whangapoua Estuary) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Okiwi - Whangapoua Estuary may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Okiwi - Whangapoua Estuary is 94 km (58 miles) from the city of Northshore. If you plan a holiday in Great Barrier Island, look for hotels and other accommodation in Northshore. Northshore has rooms for a wide range of budgets as well as car hire and transport links.