Shark Alley Surf Forecast

/ Great Barrier Island (5 surf breaks) /

New Zealand (466 surf breaks)

Surf Forecasts:

Shark Alley surfForecast / Great Barrier Island / New Zealand

12 Day Weather and Surf, issued 6 pm Tuesday 04 Nov 2025 NZDT

Forecast update in hr min s Forecast update imminent

Shark Alley surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Shark Alley sea temperature is 16.9° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Shark Alley this week:

The surf forecast for Shark Alley over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 05) at 1AM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 12s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Shark Alley in the next 12 days are 1.0m 9s and forecast to arrive on Saturday (Nov 08) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Nov 12) at 1AM.

Wave Type	Time (NZDT) & Date	Wave Height & Period
Next good surf (1 star+)	1AM (Wed 5th Nov)	3.5ft (1.0m) 8s
Best Surf	1AM (Wed 5th Nov)	3.5ft (1.0m) 8s
Most Powerful	7PM (Sat 8th Nov)	3.5ft (1.0m) 9s

Table - best surf conditions forecast for Shark Alley over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Very mild (max 18°C on Wed afternoon, min 15°C on Wed morning). Wind will be generally light.											Days 3-6 Weather Summary Mostly dry. Very mild (max 19°C on Sun afternoon, min 17°C on Fri night). Wind will be generally light.
	Tue 04		Wednesday 05			Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	1	1	0	1	1	0	0	1	0	0	1	0	0	1	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	NE	ENE	NE	NE	ENE	ENE
Period(s) (?)	8	8	8	8	8	8	8	8	8	8	8	8	8	9	9	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	128	114	114	99	101	73	75	80	77	67	69	86	138	155	123	112	58	59	59	33	32
Wind (km/h)	NW	W	S	NNW	NNW	NNE	N	NNW	NNW	N	NNW	NNE	NNW	NNW	NE	N	NNW	NNW	NNE	NNW	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	cross	glass	glass	cross- on	cross- on	glass	cross- on	cross	glass	cross- on	cross	glass	cross- on	cross	cross	cross- on	cross- on	cross- on
High Tide / height (m)	6:53PM 2.23		7:28AM 2.25		7:46PM 2.30	8:20AM 2.35		8:39PM 2.34	9:11AM 2.41		9:32PM 2.35	10:03AM 2.43		10:26PM 2.32	10:55AM 2.41		11:20PM 2.27	11:48AM 2.35		12:15AM 2.21	12:42PM 2.28
Low Tide / height (m)		12:58AM 0.41		1:27PM 0.45	1:49AM 0.31		2:19PM 0.37	2:41AM 0.25		3:11PM 0.34	3:33AM 0.23		4:04PM 0.35		4:25AM 0.25	4:59PM 0.39		5:18AM 0.31	5:55PM 0.46		6:11AM 0.40

	Tue 04		Wednesday 05			Thursday 06			Friday 07			Saturday 08			Sunday 09			Monday 10
Sunrise	-	-	6:09	-	-	6:09	-	-	6:07	-	-	6:07	-	-	6:05	-	-	6:05	-	-	6:05
Sunset	7:52	-	-	7:52	-	-	7:53	-	-	7:54	-	-	7:55	-	-	7:57	-	-	7:58	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1
Temp. °C	16	17	16	18	18	17	18	17	17	18	18	17	18	18	18	19	19	19	19	19	18
Feels °C (?)	15	16	16	16	17	17	17	16	18	18	18	18	18	18	19	19	20	20	19	18	16

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

Quick surf report for Shark Alley:

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Information about the Shark Alley Surf forecast

The above surf forecast table for Shark Alley provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Shark Alley can be found by selecting the local surf guide option on the grey menu. Our Shark Alley 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 (Shark Alley) 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 Shark Alley 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.

Shark Alley is 88 km (55 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.