Kai-Iwi Surf Break

Lat Long: 39.90° S 174.92° E

Issued: 5 am 24 Jun 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
13.9° C

Normal for this time of year

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


Kai-Iwi surf forecast from 23 Jun 2026:

  • Best quality surf: Saturday 27 Jun, 12AM (local time) - 13ft (4.0m), 10s period, S swell with cross-onshore winds.
  • Most powerful swell: Friday 26 Jun, 3PM (local time) - 18ft (5.5m), 11s period, S swell with 7,062 kJ wave energy.
  • Next surfable swell (1★+): Saturday 27 Jun, 12AM (local time) - 13ft (4.0m), 10s period with S swell.

Best Forecast Surf Conditions for Kai-Iwi this week:

The surf forecast for Kai-Iwi over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jun 27) at 12AM. The primary swell is predicted to be 4.0m and 10s period with a secondary swell of 2.5m and 10s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 16 days are 5.5m 11s and forecast to arrive on Friday (Jun 26) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Wednesday (Jul 01) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sat 27th Jun)13ft (4.0m) 10s
Best Surf12AM (Sat 27th Jun)13ft (4.0m) 10s
Most Powerful 3PM (Fri 26th Jun)18ft (5.5m) 11s

Table - best surf conditions forecast for Kai-Iwi over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Fri morning. Very mild (max 15°C on Wed morning, min 8°C on Fri morning). Winds increasing (light winds from the ENE on Wed morning, strong winds from the S by Fri morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sat morning. Very mild (max 13°C on Sun afternoon, min 9°C on Mon night). Wind will be generally light.

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
!
1
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)
0.3
SSW
12
0.3
S
11
0.2
WSW
15
1.8
S
6
2.5
S
8
3.5
S
9
5
S
10
5.5
S
11
4
S
10
3
S
9
3
S
8
1.7
S
7
0.9
SSW
6
0.4
SW
16
0.4
SW
15
0.4
SW
14
0.4
SW
13
1.1
S
6
1.1
S
7
0.4
SW
14
0.4
SSW
14
Wave Graph
Metric surfscale
Energy kJ
28
21
22
247
957
1960
5156
7062
3233
1228
1208
320
64
61
54
49
45
97
107
66
68
Wind (km/h)
10
ENE
10
ESE
10
ESE
25
SSE
20
SE
30
SSE
45
S
40
S
20
SSE
20
S
20
SSE
15
SSE
10
SE
10
SSE
20
ESE
20
ESE
15
SSE
15
ESE
20
ESE
20
SE
15
ESE
Wind State
cross-off
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
High Tide
6:22PM2.28m
6:46AM2.30m
7:27PM2.33m
7:44AM2.33m
8:18PM2.42m
8:34AM2.38m
9:01PM2.51m
9:18AM2.45m
9:39PM2.59m
9:58AM2.51m
10:15PM2.65m
10:35AM2.56m
10:50PM2.70m
Low Tide
12:01PM1.12m
00:36AM1.20m
1:05PM1.11m
1:40AM1.17m
2:01PM1.07m
2:31AM1.11m
2:48PM1.02m
3:13AM1.05m
3:29PM0.97m
3:51AM1.01m
4:07PM0.93m
4:28AM0.97m
4:44PM0.90m
part cloud
light rain
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
light rain
part cloud
clear
part cloud
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:41
7:41
7:41
7:41
7:41
7:41
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:01
5:02
5:02
5:02
5:04
5:04
5:05
 mm
2
2
1
2
1
1
1
1
Temp °C
15
13
14
11
10
9
9
9
10
11
11
11
12
13
12
12
13
10
10
10
7
Feels °C
13
11
12
6
5
3
-1
0
6
7
7
6
10
11
8
7
9
7
4
5
2
Swell 1
Height (m)
Direction
Period (s)
0.3
SSW
12
0.3
S
11
0.2
WSW
15
0.4
SW
14
0.9
WSW
13
1
WSW
12
0.6
W
12
2.5
SSW
10
1.9
SSW
9
2
SSW
8
1.7
S
7
0.9
SSW
6
0.4
WSW
9
0.4
SSW
5
0.4
SW
14
0.4
SW
13
1.1
S
6
1.1
S
7
0.9
SSW
6
0.5
S
5
Energy kJ
28
21
22
53
257
325
112
1329
541
527
320
64
25
7
49
45
97
107
66
15
Swell 2
Height (m)
Direction
Period (s)
0.2
WSW
14
0.2
WSW
14
0.2
S
10
0.2
WNW
10
0.3
WSW
11
0.1
S
19
0.2
SSW
18
0.4
WSW
11
0.4
WSW
9
0.4
SW
16
0.3
WSW
8
0.3
WSW
8
0.2
WSW
9
0.4
SW
13
0.4
SW
14
0.4
SW
14
0.4
SSW
14
Energy kJ
20
19
8
9
24
7
31
50
32
61
14
14
7
42
52
52
68
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
8
0.2
S
14
0.2
WNW
10
0.1
W
10
0.1
S
18
0.2
S
15
0.3
SSW
16
0.3
SSW
14
0.4
SW
15
0.2
S
11
0.2
S
10
0.2
S
17
0.4
SSW
15
0.3
SSW
14
0.2
WSW
13
Energy kJ
6
15
9
2
6
19
47
40
54
9
8
22
74
40
18
Wind waves
Height (m)
Direction
Period (s)
0.4
E
3
0.6
ESE
3
1.8
S
6
2.5
S
8
3.5
S
9
5
S
10
5.5
S
11
4
S
10
3
S
9
3
S
8
0.8
S
6
0.5
ESE
3
0.8
SE
4
0.7
SSE
4
0.5
SE
3
0.6
ESE
4
Energy kJ
3
8
247
957
1960
5156
7062
3233
1228
1208
38
6
16
13
4
10
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
3
4
3
2
5
3
3
2
2
2
1
1
2
2
3
1
2
Distance (km)
0
18
39
20
118
177
196
196
156
11
11
118
118
118
61
61
39
118
120
39
118
Best forecast wave conditions in Wanganui and the Manawatu
Rating
(10 max)
1
1
1
3
3
1
1
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
4
4
5
4
4
5
4
5
4
5
5
5
4
4
4
4
4
4
3
3
Header Global
Rating
(10 max)
5
8
9
8
5
5
5
5
6
5
5
5
5
5
9
8
5
6
6
5
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Kai-Iwi Surf forecast

The above surf forecast table for Kai-Iwi provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kai-Iwi can be found by selecting the local surf guide option on the grey menu. Our Kai-Iwi surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kai-Iwi) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kai-Iwi may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Wanganui and the Manawatu? If you are looking for accommodation near Kai-Iwi, camping, hotels and holiday cottages in Wanganui and the Manawatu, consider staying in Wanganui which is 12 km (7 miles) away. Other places in and around Wanganui and the Manawatu where you can find information about places to rent, and car hire include Palmerston North which is 78 km (48 miles) away and Levin, 87 km (54 miles) away.

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