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Surf Forecasts:

Shark Alley surfForecast / Great Barrier Island / New Zealand

information circle12 Day Weather and Surf, issued 12 am Wednesday 04 Feb 2026 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
21.9° C
 (Which is 1.1°C warmer than normal for this time of year)

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 (Feb 04) at 1PM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.3m and 18s. 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 11s and forecast to arrive on Saturday (Feb 07) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Saturday (Feb 07) at 4AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Wed 4th Feb)2.5ft (0.7m) 9s
Best Surf 1PM (Wed 4th Feb)2.5ft (0.7m) 9s
Most Powerful 1AM (Sat 7th Feb)3.5ft (1.0m) 11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 20°C on Wed afternoon, min 18°C on Fri morning). Winds increasing (calm on Wed afternoon, fresh winds from the SW by Fri afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Sun afternoon, min 18°C on Fri night). Winds decreasing (strong winds from the SSW on Fri night, light winds from the SSE by Mon morning).

Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Monday
09
Tue
10
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
NE
0.7
NE
0.4
NNE
0.4
N
1.4
E
0.5
N
0.4
N
0.8
ENE
0.9
NE
1
NE
0.9
ENE
0.7
NE
0.6
NE
0.6
NE
0.6
NE
0.6
NE
0.3
N
0.4
NE
0.4
NE
0.4
NE
0.5
E
Period(s) (?)1010171671514121111101099109128887
Wave
Graph
(?)Metric surfscale
Energy kJ (?)969099821731066619616923717598686758492523202026
Wind
(km/h)
30
W
15
W
5
NW
30
E
20
ESE
10
ENE
15
WNW
30
SW
35
SW
45
SW
35
SSW
30
SW
35
SW
30
SSW
30
SW
40
SW
15
SSW
10
ENE
10
ENE
10
E
15
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		glasscross-
on		cross-
on		cross-
on		cross-
off		offoffoffoffoffoffoffoffoffcross-
off		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
9:55AM
2.41
10:21PM
2.30
10:41AM
2.39
11:07PM
2.28
11:25AM
2.34
11:52PM
2.24
12:07PM
2.27
12:36AM
2.17
12:49PM
2.18
1:18AM
2.09
1:31PM
2.08
2:00AM
2.00
2:14PM
1.99
Low Tide
/ height (m)
3:32AM
0.35
4:03PM
0.43
4:15AM
0.37
4:46PM
0.44
4:57AM
0.43
5:29PM
0.48
5:40AM
0.52
6:11PM
0.53
6:24AM
0.63
6:53PM
0.61
7:11AM
0.72
7:36PM
0.69
8:02AM
0.81
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Monday
09
Tue
10
Sunrise-6:37--6:37--6:39--6:39--6:41--6:41--6:43-
Sunset--8:24--8:24--8:23--8:22--8:22--8:21--8:20
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
Rain (mm)
---------------------
Temp. °C191920201919191820181921202122202021212021
Feels °C (?)131721181718181415121417161918172122232121
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Shark Alley surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Shark Alley at:
surf-forecast.com

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.

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