The Island (Island Bay) Surf Break

Lat Long: 41.35° S 174.78° E

The Island (Island Bay) 48 hour detailed Surf Forecast

Issued: 11 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island (Island Bay) sea temperature is
12.4° C
0.4° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 13ft (4.0m), 11s period with S swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 10ft (3.0m), 14s period with S swell.
  • Evening surf: Evening surf (19 Aug, local time) - 8ft (2.5m), 13s period with S swell.

The current surf forecast for The Island (Island Bay) at 3AM is: 5.0m 11s primary swell from a South direction and 0.1m 15s secondary swell from a Southeast direction (forecast issued at 11:00pm August 18). The wind direction is predicted to be cross-onshore.

Time (NZST) & DateWave HeightWave Period
Morning (19 Aug)13ft (4.0m)11s
Afternoon (19 Aug)10ft (3.0m)14s
Evening (19 Aug)8ft (2.5m)13s

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


Short Range Forecast

Some drizzle, heaviest during Wed morning. Very mild (max 12°C on Fri afternoon, min 8°C on Tue night). Winds decreasing (near gales from the S on Tue night, calm by Thu afternoon).

Wednesday
19
Thursday
20
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
0
0
0
0
3
2
3
3
2
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
6
S
11
5.5
S
11
5
S
11
4.5
S
11
4
S
11
3.5
S
14
3
S
14
3
S
14
2.5
S
13
2.3
SSW
13
2
S
9
1.7
S
12
1.6
S
12
1.6
S
8
1.5
S
8
1.5
S
8
1.6
S
9
Wave Graph
Metric surfscale
Energy kJ
7986
7968
5985
4274
3546
4770
3857
3017
2204
1750
665
792
678
347
313
311
373
Wind (km/h)
55
S
55
S
50
S
40
S
35
SSE
30
S
30
S
30
S
20
S
15
SSW
5
SW
10
WSW
5
WSW
5
WNW
0
NNW
5
ESE
10
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
glassy
glassy
glassy
cross-on
High Tide
9:40PM1.61m
10:02AM1.64m
10:28PM1.60m
10:50AM1.63m
Low Tide
3:57AM0.64m
4:27PM0.63m
4:44AM0.66m
5:16PM0.66m
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
clear
cloud
cloud
clear
clear
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:44
 mm
1
Temp °C
8
8
8
8
8
9
9
9
9
10
10
9
9
10
10
9
9
Feels °C
-4
-4
-3
-1
0
3
3
3
4
6
8
7
7
9
9
7
7
  • 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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Island (Island Bay) 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.


Nearest locationNearest