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: 11 am 07 Jun 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
14.8° 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 7 Jun 2026:

  • Best quality surf: Monday 8 Jun, 6PM (local time) - 11ft (3.5m), 9s period, WSW swell with cross-shore winds.
  • Most powerful swell: Monday 8 Jun, 9PM (local time) - 11ft (3.5m), 9s period, WSW swell with 1,972 kJ wave energy.
  • Next surfable swell (1★+): Monday 8 Jun, 6PM (local time) - 11ft (3.5m), 9s 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 Monday (Jun 08) at 6PM. The primary swell is predicted to be 3.5m and 9s period with a secondary swell of 0.1m and 16s. Another secondary swell of 0.1m and 9s is also forecast. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 16 days are 3.5m 9s and forecast to arrive on Monday (Jun 08) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Sunday (Jun 07) at 6PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 8th Jun)11ft (3.5m) 9s
Best Surf 6PM (Mon 8th Jun)11ft (3.5m) 9s
Most Powerful 9PM (Mon 8th Jun)11ft (3.5m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun afternoon, min 8°C on Tue night). Winds decreasing (fresh winds from the WNW on Mon morning, calm by Mon night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Fri afternoon. Very mild (max 15°C on Fri morning, min 9°C on Wed morning). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
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
1
1
0
0
1
3
0
3
3
2
1
1
0
1
1
0
0
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
W
9
1.4
WSW
9
2.4
W
8
3
W
8
3
W
8
3
WSW
8
1.7
WSW
10
3
S
8
1.4
S
15
1.2
S
14
0.8
S
13
0.6
WSW
14
0.4
SW
14
0.4
SW
14
0.5
SW
16
1.6
W
6
1.9
W
7
0.6
WSW
16
0.6
SW
17
0.6
SW
16
0.6
SW
15
Wave Graph
Metric surfscale
Energy kJ
553
355
771
1102
1264
1173
518
994
836
585
219
138
71
50
119
213
341
169
222
201
171
Wind (km/h)
15
S
10
W
25
W
30
WNW
30
W
20
SSW
5
SSE
30
S
10
SSE
5
NNE
5
S
5
NNE
10
NNE
10
WNW
15
N
20
NW
15
WSW
5
ESE
10
E
10
SSE
5
ENE
Wind State
on
cross
cross
cross
cross
on
glassy
cross-on
cross-on
off
glassy
off
off
cross
cross-off
cross-off
cross-on
cross
cross-off
cross-on
cross-off
High Tide
3:00PM2.33m
3:18AM2.43m
3:52PM2.30m
4:12AM2.41m
4:47PM2.31m
5:07AM2.42m
5:46PM2.35m
6:05AM2.46m
6:52PM2.43m
7:07AM2.52m
7:57PM2.56m
8:11AM2.61m
8:53PM2.70m
Low Tide
9:08PM1.12m
9:42AM1.09m
10:02PM1.13m
10:34AM1.06m
10:59PM1.12m
11:31AM1.01m
00:00AM1.07m
12:32PM0.94m
1:05AM0.99m
1:36PM0.85m
2:09AM0.89m
2:35PM0.76m
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:37
7:37
7:37
7:37
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:01
5:00
5:00
5:00
5:00
5:00
5:00
 mm
1
Temp °C
14
15
14
15
15
14
13
13
11
11
12
10
12
13
11
15
13
11
11
11
9
Feels °C
12
13
9
8
9
9
7
6
7
9
10
8
11
11
8
10
10
8
8
8
6
Swell 1
Height (m)
Direction
Period (s)
1.8
W
9
1.4
WSW
9
0.4
SSW
9
0.3
SSW
8
0.1
S
14
0.7
SW
16
1.7
WSW
10
1.2
WSW
10
1.4
S
15
1.2
S
14
0.8
S
13
0.5
W
8
0.5
W
8
0.4
WSW
8
0.5
SW
16
0.5
SW
14
0.4
SW
14
0.7
W
6
0.7
SSW
6
0.6
SW
16
0.6
SW
15
Energy kJ
553
355
28
14
4
268
518
294
836
585
219
34
32
21
119
102
51
36
34
201
171
Swell 2
Height (m)
Direction
Period (s)
0.1
S
10
0.7
S
6
0.4
SW
20
0.3
SSW
8
0.1
S
18
0.2
S
15
1
S
13
0.8
WSW
16
0.9
WSW
10
0.7
WSW
9
0.7
W
9
0.6
WSW
14
0.4
SW
14
0.4
SW
14
0.2
WSW
7
0.2
S
9
0.3
SW
18
0.6
WSW
16
0.6
SW
17
0.4
WSW
9
0.3
S
6
Energy kJ
2
32
100
14
6
17
366
343
180
88
76
138
71
50
5
6
49
169
222
27
7
Swell 3
Height (m)
Direction
Period (s)
0.1
S
10
0.3
SW
20
0.1
S
16
0.2
S
15
0.7
SW
16
0.7
SW
16
0.7
SW
15
0.6
SW
15
0.5
S
12
0.4
SSW
10
0.3
S
10
0.2
S
9
0.1
S
11
0.1
S
8
0.2
WSW
9
0.4
WSW
10
0.1
S
18
0.3
W
8
Energy kJ
2
62
5
17
278
258
239
178
70
37
17
6
2
1
9
30
6
12
Wind waves
Height (m)
Direction
Period (s)
0.7
S
4
2.4
W
8
3
W
8
3
W
8
3
WSW
8
0.7
S
7
3
S
8
1.7
S
7
0.7
W
4
1.6
W
6
1.9
W
7
0.6
S
4
0.6
S
6
0.4
ESE
3
Energy kJ
17
771
1102
1264
1173
45
994
271
19
213
341
14
21
4
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
1
3
3
3
5
2
3
2
1
1
1
1
2
1
1
2
2
1
Distance (km)
61
13
150
158
155
61
0
39
23
0
0
0
0
13
0
150
156
7
0
39
0
Best forecast wave conditions in Wanganui and the Manawatu
Rating
(10 max)
2
2
3
3
2
3
3
2
1
1
1
1
2
1
2
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
4
5
3
4
9
9
9
5
4
5
5
4
4
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
6
7
8
9
6
5
9
9
6
9
5
9
8
7
8
4
5
4
4
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)
Map placeholder
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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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