Kai-Iwi Surf Break

Lat Long: 39.90° S 174.92° E

Issued: 5 pm 14 Jun 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
14.3° 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 14 Jun 2026:

  • Best quality surf: Monday 15 Jun, 9PM (local time) - 7ft (2.2m), 7s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 17 Jun, 12PM (local time) - 8ft (2.4m), 7s period, WNW swell with 637 kJ wave energy.
  • Next surfable swell (1★+): Monday 15 Jun, 9PM (local time) - 7ft (2.2m), 7s period with WNW 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 15) at 9PM. The primary swell is predicted to be 2.2m and 7s period with a secondary swell of 1.7m and 8s. Another secondary swell of 0.4m and 14s is also forecast. 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 2.4m 7s and forecast to arrive on Wednesday (Jun 17) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Jun 20) at 3AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 15th Jun)7ft (2.2m) 7s
Best Surf 9PM (Mon 15th Jun)7ft (2.2m) 7s
Most Powerful12PM (Wed 17th Jun)8ft (2.4m) 7s

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 6mm), mostly falling on Tue morning. Very mild (max 16°C on Mon morning, min 8°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Wed afternoon. Very mild (max 14°C on Fri afternoon, min 6°C on Thu night). Wind will be generally light.

Sun
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
1
1
1
3
0
0
2
1
3
0
1
1
2
2
1
1
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
W
6
1.7
W
6
1.6
W
6
1.5
W
7
1.8
W
8
0.7
SW
15
0.7
SW
14
0.9
WSW
13
2.2
W
7
2
WNW
7
1.3
WSW
9
1.2
WSW
12
1.1
WSW
13
0.9
WSW
12
0.7
WSW
13
0.8
S
17
0.6
S
16
2
W
7
1.8
W
7
1.7
W
7
1.6
WNW
6
Wave Graph
Metric surfscale
Energy kJ
206
235
215
202
417
223
211
307
521
440
295
426
373
263
168
381
177
374
324
262
182
Wind (km/h)
25
NW
20
NW
20
NNW
20
NW
15
NNW
15
ESE
10
SSE
15
NNW
25
NW
15
N
20
SE
5
ESE
10
SSE
5
NNE
5
NNE
15
NW
20
NW
20
WNW
20
WNW
15
NNW
20
NNW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
off
cross
cross
cross-on
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
9:45PM2.83m
10:06AM2.77m
10:34PM2.92m
10:58AM2.81m
11:24PM2.96m
11:49AM2.80m
00:14AM2.93m
12:41PM2.74m
1:05AM2.85m
1:33PM2.65m
1:57AM2.74m
2:26PM2.54m
2:49AM2.61m
Low Tide
3:30PM0.68m
3:59AM0.69m
4:22PM0.63m
4:49AM0.65m
5:12PM0.61m
5:41AM0.65m
6:01PM0.64m
6:33AM0.70m
6:51PM0.72m
7:26AM0.77m
7:42PM0.82m
8:19AM0.86m
8:34PM0.93m
9:10AM0.95m
clear
clear
part cloud
part cloud
light rain
rain showers
part cloud
part cloud
cloud
mod rain
light rain
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:39
7:39
7:41
7:41
7:41
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:00
5:00
5:00
5:00
5:00
5:00
5:00
5:01
 mm
3
3
7
2
Temp °C
15
13
16
16
12
10
10
11
12
13
10
10
11
8
12
14
12
14
14
13
15
Feels °C
12
9
12
12
9
7
7
5
7
10
4
8
8
5
8
10
8
10
11
10
12
Swell 1
Height (m)
Direction
Period (s)
0.5
SW
14
0.4
WSW
16
0.4
WSW
16
0.4
SW
15
0.6
SW
17
1.1
SSW
7
0.8
W
8
0.9
WSW
13
0.4
SW
12
1.7
W
8
1.3
WSW
9
1.3
SSW
7
1.1
WSW
13
0.9
WSW
12
0.7
WSW
13
0.8
S
17
0.6
S
16
0.5
S
13
0.4
SSW
13
1.5
W
7
1.3
W
6
Energy kJ
89
103
98
60
238
111
92
307
39
320
295
186
373
263
168
381
177
92
55
199
127
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
18
0.4
SW
13
0.2
S
11
0.2
S
11
0.2
S
11
1
W
8
0.7
SW
14
0.5
S
6
0.2
S
9
0.3
S
14
1.1
SSW
7
1.2
WSW
12
0.8
SSW
6
0.6
S
5
0.5
S
17
0.6
W
9
0.4
SW
13
0.2
WSW
13
0.2
WSW
12
0.4
SSW
15
0.3
SSW
14
Energy kJ
81
42
10
9
9
130
211
20
7
33
132
426
51
15
146
55
44
16
14
75
38
Swell 3
Height (m)
Direction
Period (s)
0.1
S
9
0.2
S
12
0.1
S
15
0.1
S
17
0.7
SW
15
0.4
SW
14
0.1
S
14
0.2
S
14
0.3
SW
12
0.2
S
14
0.1
S
14
0.1
S
14
0.2
S
10
0.5
S
11
0.5
SW
13
0.2
WSW
13
0.1
W
21
0.1
SW
20
0.1
SW
18
0.2
WSW
18
Energy kJ
2
12
4
6
223
73
4
16
23
15
4
4
8
61
88
17
9
15
13
30
Wind waves
Height (m)
Direction
Period (s)
1.6
W
6
1.7
W
6
1.6
W
6
1.5
W
7
1.8
W
8
1
S
7
0.4
WNW
3
2.2
W
7
2
WNW
7
0.7
SE
4
1.4
W
6
2
W
7
1.8
W
7
1.7
W
7
1.6
WNW
6
Energy kJ
206
235
215
202
417
89
3
521
440
13
141
374
324
262
182
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
3
3
3
2
2
3
1
2
1
2
2
3
4
4
3
2
2
Distance (km)
150
13
13
13
0
39
39
0
13
0
61
7
104
0
0
177
155
155
155
13
13
Best forecast wave conditions in Wanganui and the Manawatu
Rating
(10 max)
2
2
2
3
1
1
2
2
3
1
3
1
2
2
2
2
Best forecast wave conditions in New Zealand
Rating
(10 max)
4
3
9
2
5
5
4
4
2
4
5
5
5
9
6
9
5
4
4
4
4
Header Global
Rating
(10 max)
4
5
9
5
5
5
5
5
4
4
5
5
5
9
9
9
5
5
4
5
7
  • 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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