Kai-Iwi Surf Break
Lat Long: 39.90° S 174.92° E

Kai-Iwi Surf Forecast and Surf Report

Weather Forecast for Kai-Iwi

Issued: 5 am 03 Jun 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
14.7° 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 2 Jun 2026:

  • Best quality surf: Sunday 7 Jun, 6PM (local time) - 6ft (1.9m), 11s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 7 Jun, 6PM (local time) - 6ft (1.9m), 11s period, WSW swell with 813 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 3 Jun, 9PM (local time) - 1.5ft (0.5m), 11s period with WSW 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 Wednesday (Jun 03) at 9PM. The primary swell is predicted to be 0.5m and 11s period with a secondary swell of 0.9m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 16 days are 1.9m 11s and forecast to arrive on Sunday (Jun 07) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Thursday (Jun 04) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 3rd Jun)1.5ft (0.5m) 11s
Best Surf 6PM (Sun 7th Jun)6ft (1.9m) 11s
Most Powerful 6PM (Sun 7th Jun)6ft (1.9m) 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

Heavy rain (total 39mm), heaviest during Fri morning. Very mild (max 17°C on Thu night, min 10°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Sun morning. Very mild (max 15°C on Sat morning, min 9°C on Sun afternoon). Winds decreasing (fresh winds from the W on Sat night, light winds from the N by Sun afternoon).

Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
0
0
2
1
2
0
0
0
1
0
1
2
2
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
W
7
1.2
W
7
1.2
WNW
6
0.5
W
10
0.5
W
7
0.8
WNW
8
1.3
W
10
1.8
WNW
9
1.2
W
10
1.2
W
10
0.9
W
10
1
W
10
1.9
WSW
7
1.8
WSW
11
1.5
WSW
11
2.3
W
8
1.9
WSW
8
1.9
WSW
8
2.2
WSW
8
1.6
WSW
8
0.8
WSW
17
Wave Graph
Metric surfscale
Energy kJ
184
131
91
50
25
92
307
559
257
262
153
202
394
807
467
617
497
509
629
359
386
Wind (km/h)
15
NW
20
WNW
15
NNW
15
N
20
NNW
20
N
25
NNW
15
N
15
N
15
NNW
25
NW
30
WNW
30
S
15
S
20
W
20
W
15
W
25
NW
15
WNW
5
WNW
10
ENE
Wind State
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
cross-on
cross-on
cross
cross
cross-off
cross-off
cross
cross-off
High Tide
12:02PM2.55m
00:18AM2.66m
12:40PM2.50m
00:57AM2.60m
1:22PM2.44m
1:40AM2.54m
2:09PM2.38m
2:27AM2.48m
3:00PM2.33m
3:18AM2.43m
3:52PM2.30m
4:12AM2.41m
4:47PM2.31m
Low Tide
6:12PM0.93m
6:35AM1.02m
6:50PM0.98m
7:17AM1.06m
7:31PM1.03m
8:03AM1.09m
8:17PM1.08m
8:52AM1.10m
9:08PM1.12m
9:42AM1.09m
10:02PM1.13m
10:34AM1.06m
10:59PM1.12m
part cloud
clear
clear
part cloud
part cloud
rain showers
heavy rain
heavy rain
light rain
rain showers
thunderstorm
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:33
7:35
7:35
7:35
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:02
5:01
5:01
5:01
5:01
5:00
5:00
 mm
5
18
11
5
2
1
2
6
Temp °C
15
15
12
16
16
17
16
16
16
15
15
14
11
11
13
15
15
13
15
14
12
Feels °C
12
12
10
13
13
14
12
14
15
12
10
9
4
7
8
11
12
10
12
13
10
Swell 1
Height (m)
Direction
Period (s)
0.2
WSW
13
0.4
WSW
12
1
W
6
0.6
W
5
0.5
W
7
0.8
WNW
8
1.3
W
10
1.3
WNW
10
1.2
W
10
1.2
W
10
0.9
W
10
1
W
10
0.5
W
10
1.8
WSW
11
1.5
WSW
11
0.6
WSW
19
1.9
WSW
8
1.9
WSW
8
2.2
WSW
8
1.6
WSW
8
1.2
W
8
Energy kJ
18
56
64
18
25
92
307
322
257
262
153
202
53
807
467
238
497
509
629
359
190
Swell 2
Height (m)
Direction
Period (s)
0.1
S
14
0.1
S
13
0.6
WSW
11
0.5
W
10
0.3
WSW
9
0.4
WSW
11
0.1
S
9
0.1
S
8
0.1
W
20
0.1
S
11
0.1
S
12
0.6
WSW
13
0.1
W
24
1.1
S
9
0.6
S
9
0.7
SW
18
0.7
SW
16
0.6
WSW
16
0.5
S
20
0.8
S
16
Energy kJ
4
3
90
50
16
39
2
1
8
2
3
120
11
211
64
312
274
169
200
334
Swell 3
Height (m)
Direction
Period (s)
0.1
S
13
0.1
W
18
0.2
S
5
0.1
S
9
0.1
S
9
0.1
S
9
0.1
S
12
0.1
W
19
0.1
S
12
0.2
WSW
21
0.4
SSW
10
0.4
SSW
9
0.3
S
9
0.3
S
9
0.5
SW
16
0.8
WSW
17
Energy kJ
3
6
2
2
2
2
3
7
3
45
31
29
15
14
119
386
Wind waves
Height (m)
Direction
Period (s)
1.4
W
7
1.2
W
7
1.2
WNW
6
0.4
NNW
3
0.5
NNW
3
0.5
N
3
0.6
N
4
1.8
WNW
9
0.9
WNW
4
1.3
WNW
6
1.9
WSW
7
2
S
7
2.3
W
8
Energy kJ
184
131
91
3
7
5
9
559
36
121
394
352
617
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
2
3
1
2
2
1
3
2
2
1
3
2
3
2
3
Distance (km)
0
156
0
13
150
13
13
13
0
0
150
155
118
104
61
104
13
157
0
7
0
Best forecast wave conditions in Wanganui and the Manawatu
Rating
(10 max)
1
1
1
1
2
3
1
2
2
2
1
3
3
3
3
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
4
2
2
2
3
3
3
3
4
2
2
5
4
4
6
5
3
5
9
9
Header Global
Rating
(10 max)
5
4
5
5
4
5
5
5
9
9
9
9
9
8
6
8
7
6
9
9
9
  • 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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