The Island (Island Bay) Surf Break

Lat Long: 41.35° S 174.78° E

The Island (Island Bay) 48 hour detailed Surf Forecast

Issued: 5 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Island (Island Bay) sea temperature is
13.4°C
1.4° 

The Island (Island Bay) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at The Island (Island Bay) today (12 Sep):

  • Morning surf: Morning surf (12 Sep, local time) - 6ft (1.8m), 15s period with SSW swell.
  • Afternoon surf: Afternoon surf (12 Sep, local time) - 10ft (3.0m), 13s period with S swell.
  • Evening surf: Evening surf (12 Sep, local time) - 10ft (3.0m), 13s period with S swell.

The current surf forecast for The Island (Island Bay) at 12AM is: 0.7m 15s primary swell from a South-southwest direction and 1.1m 5s secondary swell from a South direction (forecast issued at 05:00pm September 11). An open ocean swell of 0.3m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (NZST) & DateWave HeightWave Period
Morning (12 Sep)6ft (1.8m)15s
Afternoon (12 Sep)10ft (3.0m)13s
Evening (12 Sep)10ft (3.0m)13s

Table - waves today at The Island (Island Bay). (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 13°C on Fri afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the NNW on Fri afternoon, calm by Sun morning).

Fri
11
Saturday
12
Sunday
13
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
1
1
3
3
4
5
3
4
3
4
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSW
17
0.6
SSW
17
0.4
SSW
16
0.7
SSW
15
0.9
SSW
15
1.2
SSW
15
1.8
SSW
15
2.3
SSW
14
3
S
13
3
S
14
3
S
13
3
SSW
13
2.4
S
13
2.2
S
12
1.9
S
12
1.8
S
12
1.7
S
12
1.8
S
12
2
S
12
Wave Graph
Metric surfscale
Energy kJ
229
227
91
243
318
588
1500
1873
3049
3616
3198
2496
1902
1507
1080
940
827
973
1066
Wind (km/h)
35
NNW
30
N
10
NE
30
SSE
15
SE
10
SE
15
SE
10
SE
15
SSE
10
E
25
NNW
30
NNW
15
NW
5
SW
5
SW
20
SSE
20
SSE
15
SE
15
SE
Wind State
cross-off
cross-off
cross
cross-on
on
on
on
on
on
cross-on
off
off
off
cross
glassy
cross-on
on
on
on
High Tide
4:43PM1.67m
5:15AM1.59m
5:39PM1.64m
6:10AM1.60m
6:35PM1.62m
Low Tide
11:04PM0.59m
11:28AM0.51m
00:02AM0.62m
12:25PM0.55m
clear
clear
clear
part cloud
clear
cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:05
6:06
6:07
 mm
Temp °C
12
13
12
10
9
9
9
11
11
10
10
11
10
8
11
12
12
10
9
Feels °C
4
7
10
3
6
6
5
8
7
7
5
4
6
6
9
7
8
6
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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