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Surf Forecasts:

Shark Alley surfForecast / Great Barrier Island / New Zealand

information circle12 Day Weather and Surf, issued 12 am Wednesday 05 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 4AM. 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 offshore as the swell arrives.

The most powerful waves expected at Shark Alley in the next 12 days are 1.8m 7s and forecast to arrive on Wednesday (Nov 12) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 5th Nov)3.5ft (1.0m) 8s
Best Surf 4AM (Wed 5th Nov)3.5ft (1.0m) 8s
Most Powerful 1AM (Wed 12th Nov)6ft (1.8m) 7s

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. Very mild (max 19°C on Fri 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 Mon afternoon, min 17°C on Fri night). Wind will be generally light.

Wednesday
05
Thursday
06
Friday
07
Saturday
08
Sunday
09
Monday
10
Tue
11
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
1
0
0
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
NE
1
NE
0.9
NE
0.9
NE
0.9
NE
0.8
NE
0.8
NE
0.8
NE
0.8
NE
0.6
NE
0.8
NE
0.9
NE
1
NE
0.9
ENE
0.9
NE
0.9
NE
0.7
ENE
0.7
ENE
0.9
N
0.3
NNE
0.3
NNE
Period(s) (?)88888888888999888851213
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1141149910188758077694867138159135105985652363033
Wind
(km/h)
10
W
10
SSW
10
NNW
10
NW
5
N
15
N
10
NNW
5
NNW
10
N
10
NW
5
N
10
NNW
5
NW
5
SE
10
NNE
5
NW
10
NNE
15
NNE
20
N
20
NNE
30
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
on		crosscross-
on		cross-
on		cross-
on		glasscross-
on		crosscross-
on		cross-
on		crossglasscross-
on		glasscross-
on		cross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
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
6:53PM
0.53
Wednesday
05
Thursday
06
Friday
07
Saturday
08
Sunday
09
Monday
10
Tue
11
Sunrise-6:09--6:09--6:07--6:07--6:05--6:05--6:05-
Sunset--7:52--7:53--7:54--7:55--7:57--7:58--7:59
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
light rain
Rain (mm)
--------------------2
Temp. °C171618181718181719181718181818181819191818
Feels °C (?)161516171716171818171718181918191919181614
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quick surf report for Shark Alley:

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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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