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 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Island (Island Bay) sea temperature is
12.1° C
0.2° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 3ft (0.9m), 14s period with ESE swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 5.5ft (1.7m), 22s period with S swell.
  • Evening surf: Evening surf (18 Jul, local time) - 5.5ft (1.7m), 20s period with S swell.

The current surf forecast for The Island (Island Bay) at 5PM is: 1.8m 22s primary swell from a South direction and 0.9m 14s secondary swell from a East-southeast direction (forecast issued at 11:00am July 18). The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (18 Jul)3ft (0.9m)14s
Afternoon (18 Jul)5.5ft (1.7m)22s
Evening (18 Jul)5.5ft (1.7m)20s

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


Short Range Forecast

Mostly dry. Very mild (max 12°C on Sun morning, min 7°C on Mon night). Wind will be generally light.

Sat
18
Sunday
19
Monday
20
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
2
5
5
3
2
3
5
4
3
0
0
0
1
1
1
2
2
2
2
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
14
1.6
S
23
1.7
S
22
1.8
SSW
21
1.7
S
20
1.7
SSW
20
1.7
SSW
18
1.6
SSW
17
1.6
SSW
16
1.5
S
16
1.5
S
15
1.5
S
15
1.8
S
15
1.8
S
14
1.8
S
14
1.8
S
14
1.8
S
14
1.6
S
19
2.5
S
19
2.4
S
19
2.3
S
18
Wave Graph
Metric surfscale
Energy kJ
362
2773
2854
2996
2337
2297
1916
1366
1210
1131
1088
1005
1392
1373
1335
1262
1225
1858
4488
3968
3268
Wind (km/h)
15
NNW
15
NW
15
NNW
25
N
25
N
20
N
10
NNW
5
NW
10
S
25
S
25
SSE
25
SSE
20
SSE
20
SE
15
SE
15
ESE
10
ESE
15
SE
20
SE
10
ESE
10
ENE
Wind State
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
on
cross-on
cross-on
High Tide
7:54AM1.65m
8:17PM1.73m
8:48AM1.66m
9:14PM1.69m
9:40AM1.66m
Low Tide
2:02PM0.46m
2:44AM0.51m
3:01PM0.49m
3:37AM0.53m
3:59PM0.54m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:41
7:39
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:13
5:13
5:14
 mm
Temp °C
9
10
11
10
10
10
10
10
10
12
11
9
9
8
8
8
8
10
10
9
9
Feels °C
5
7
8
5
5
6
8
9
7
8
6
4
4
3
4
4
5
6
5
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)
Map placeholder
How to use the Wavefinder 

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