Kai-Iwi Surf Break

Lat Long: 39.90° S 174.92° E

Kai-Iwi 48 hour detailed Surf Forecast

Issued: 5 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
12.0° C
1.3° 

Kai-Iwi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Kai-Iwi today (16 Aug):

  • Morning surf: Morning surf (16 Aug, local time) - 10ft (3.0m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (16 Aug, local time) - 10ft (3.0m), 9s period with S swell.
  • Evening surf: Evening surf (16 Aug, local time) - 8ft (2.5m), 9s period with S swell.

The current surf forecast for Kai-Iwi at 1AM is: 2.5m 7s primary swell from a South direction and 0.9m 16s secondary swell from a Southwest direction, 0.7m 8s secondary swell from a West direction (forecast issued at 05:00pm August 15). The wind direction is predicted to be cross-onshore.

Time (NZST) & DateWave HeightWave Period
Morning (16 Aug)10ft (3.0m)9s
Afternoon (16 Aug)10ft (3.0m)9s
Evening (16 Aug)8ft (2.5m)9s

Table - waves today at Kai-Iwi. (Swell directed towards the surf break)


Short Range Forecast

Moderate rain (total 13mm), heaviest on Sun morning. Very mild (max 15°C on Sat afternoon, min 6°C on Sun night). Winds decreasing (strong winds from the S on Sat night, light winds from the S by Mon afternoon).

Sat
15
Sunday
16
Monday
17
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
WSW
16
0.9
WSW
16
0.9
WSW
16
0.9
SW
16
3
S
8
3.5
S
8
3
S
9
3.5
S
9
3
S
9
3
S
9
2.5
S
9
2.5
S
9
2.2
S
8
2.1
S
8
2
S
8
1.6
S
7
1.3
S
7
0.5
SW
15
0.5
SW
14
Wave Graph
Metric surfscale
Energy kJ
447
436
436
376
1273
1578
1569
1705
1499
1224
1108
929
655
555
494
279
157
104
103
Wind (km/h)
20
SSE
15
S
15
SSE
30
S
40
S
30
SSE
30
S
35
SSE
25
SSE
25
SE
20
SE
25
SSE
25
SSE
20
SSE
20
SSE
20
SSE
15
S
10
S
10
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
High Tide
00:18AM2.89m
12:38PM2.75m
00:55AM2.77m
1:16PM2.65m
Low Tide
6:08PM0.61m
6:35AM0.64m
6:48PM0.71m
7:14AM0.73m
7:28PM0.84m
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:40
5:42
5:43
 mm
1
1
2
3
1
1
1
1
Temp °C
15
13
12
11
9
8
8
7
7
7
6
7
7
7
7
9
9
8
7
Feels °C
12
11
10
5
1
1
1
-1
1
1
0
0
1
1
1
3
4
4
3
  • 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 Kai-Iwi 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.


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