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

48hr Weather and Surf, issued 6 am Friday 03 Oct 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 16.0° C
(Which is slightly warmer than usual)

How big are the waves at Shark Alley today?

The current surf forecast for Shark Alley at 10AM is: 0.9m 5s primary swell from a North-northwest direction and 0.4m 10s secondary swell from a East direction, 0.3m 14s secondary swell from a North direction (forecast issued at 06:00am October 03). The wind direction is predicted to be cross-shore.

Time (NZDT) & Date	Wave Height	Wave Period
Morning (03 Oct)	3ft (0.9m)	5s
Afternoon (03 Oct)	4.5ft (1.4m)	5s
Evening (03 Oct)	6.5ft (2.0m)	6s

Table - waves today at Shark Alley. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Friday 03							Saturday 04								Sunday 05								Mon 06
	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM	10 PM	1 AM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	2	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NNW	N	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NNW	NW	NNW	NNW	NNW	NNW	NNW	NNW	N	NNW	NNW	NNW	NNW	N	NW
Period(s) (?)	6	15	5	5	5	6	6	7	7	7	8	7	8	8	8	8	8	8	9	9	9	8	11	6
Wave Graph (?)
kJ (?)	41	38	38	46	122	239	361	431	456	516	188	249	226	324	350	492	257	265	358	287	193	133	10	197
Wind (km/h)	NW	NW	NNW	NW	NNW	NNW	NNW	NNW	NNW	NW	W	NW	NNW	WNW	NW	NNW	WNW	WSW	WSW	WSW	W	W	W	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross	cross	cross	cross- on	cross	cross- on	cross	cross	cross	cross- off	cross	cross	cross- off	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)	3:53AM 1.85					4:46PM 1.94				5:00AM 1.89				5:44PM 2.03				6:05AM 1.99				6:36PM 2.14
Low Tide / height (m)				10:10AM 0.81				10:52PM 0.81				11:13AM 0.76				11:47PM 0.71				12:11PM 0.67				12:40AM 0.60

	Friday 03							Saturday 04								Sunday 05								Mon 06
Sunrise	-	6:52	-	-	-	-	-	-	-	6:50	-	-	-	-	-	-	-	6:48	-	-	-	-	-	-
Sunset	-	-	-	-	-	7:22	-	-	-	-	-	-	-	7:22	-	-	-	-	-	-	-	7:23	-	-

Rain (mm)	-	-	-	1	5	-	1	-	-	2	-	-	1	1	1	2	4	2	-	-	1	1	-	-
Temp. °C	16	16	16	16	17	17	17	17	17	16	15	15	15	15	15	14	13	12	14	14	14	14	13	13
Feels °C (?)	14	15	15	13	12	11	12	12	13	11	9	10	11	11	10	12	5	5	6	7	7	7	5	6

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

Recent Eyeball Surf Reports for Great Barrier Island

Wind Update The wind is still cross-on at Shark Alley (light winds from the N at SHIP7750 15 km from Shark Alley). 0.6m 5s windswell from the NNW with a 0.2m 10s swell from the ENE. 2 swells combining to make bigger set waves.
2 hours 7 minutes ago Shark Alley

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2 h 7 min ago

12.96 km/h

Cross-On

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