Kai-Iwi Surf Break

Lat Long: 39.90° S 174.92° E

Kai-Iwi 48 hour detailed Surf Forecast

Issued: 5 am 16 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) - 11ft (3.5m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (16 Aug, local time) - 11ft (3.5m), 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 11AM is: 3.5m 9s primary swell from a South direction and 0.7m 16s secondary swell from a Southwest direction, 0.5m 10s secondary swell from a West direction (forecast issued at 05:00am August 16). The wind direction is predicted to be cross-onshore.

Time (NZST) & DateWave HeightWave Period
Morning (16 Aug)11ft (3.5m)9s
Afternoon (16 Aug)11ft (3.5m)9s
Evening (16 Aug)8ft (2.5m)9s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Sun morning. Very mild (max 11°C on Tue morning, min 6°C on Sun night). Winds increasing (light winds from the S on Mon night, fresh winds from the S by Tue night).

Sunday
16
Monday
17
Tuesday
18
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
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
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
S
8
3
S
9
3.5
S
9
3.5
S
9
3.5
S
9
3
S
9
2.5
S
9
2.3
S
8
2.1
S
8
2.2
S
8
1.9
S
8
1.5
S
7
0.6
WSW
15
0.5
SW
15
0.5
SW
14
0.5
SW
14
0.5
SW
14
0.5
SW
14
1.3
S
5
1.8
S
6
1.5
S
7
1.2
S
9
3
S
8
Wave Graph
Metric surfscale
Energy kJ
1057
1328
2052
2214
1744
1224
1005
751
569
594
424
239
144
104
103
102
100
99
80
245
205
230
954
Wind (km/h)
40
S
30
SSE
35
SSE
30
SSE
25
SSE
20
SE
20
SE
25
SE
20
SE
20
SE
20
SSE
15
SSE
10
S
15
SSW
10
SSW
10
SSW
10
S
10
SSE
30
S
20
SSW
15
WSW
15
S
35
S
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
on
on
on
on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
High Tide
00:18AM2.89m
12:38PM2.75m
00:55AM2.77m
1:16PM2.65m
1:32AM2.63m
1:54PM2.53m
Low Tide
6:35AM0.64m
6:48PM0.71m
7:14AM0.73m
7:28PM0.84m
7:53AM0.85m
8:10PM0.99m
light rain
light rain
light rain
light rain
cloud
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
cloud
clear
part cloud
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:07
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:43
5:43
 mm
2
2
2
1
1
1
1
Temp °C
9
9
9
8
8
7
6
7
7
6
7
9
9
8
7
8
7
6
10
11
11
9
10
Feels °C
1
2
2
1
2
1
0
1
1
1
2
4
5
3
3
4
3
2
2
5
7
5
2
  • 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.


Nearest locationNearest