Surf Break

Lat Long: 39.90° S 174.92° E

Kai-Iwi Surf Forecast and Surf Report

Issued: 6 am 21 Oct 2026 (local time)

Forecast update in  hr  min

Today's Kai-Iwi sea temperature is
15.2°C
1.2° 

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 21 Oct 2026:

  • Best quality surf: Tuesday 27 Oct, 10PM (local time) - 8ft (2.4m), 12s period, W swell with glassy winds.
  • Most powerful swell: Tuesday 27 Oct, 4PM (local time) - 10ft (3.0m), 10s period, W swell with 1,568 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 21 Oct, 7PM (local time) - 1.5ft (0.4m), 16s 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 (Oct 21) at 7PM. The primary swell is predicted to be 0.4m and 16s period with a secondary swell of 0.9m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 16 days are 3.0m 10s and forecast to arrive on Tuesday (Oct 27) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Oct 27) at 7AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 21st Oct)1.5ft (0.4m) 16s
Best Surf10PM (Tue 27th Oct)8ft (2.4m) 12s
Most Powerful 4PM (Tue 27th Oct)10ft (3.0m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Fri morning, min 9°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the WNW by Thu morning).

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Very mild (max 18°C on Sat morning, min 11°C on Sat night). Mainly fresh winds.

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
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
2
0
0
1
0
0
0
0
0
1
0
0
0
0
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
W
7
1.1
W
7
0.4
SW
14
0.4
SW
14
1.8
W
6
1.4
W
8
0.8
W
7
0.6
W
6
0.5
SW
17
0.6
WSW
16
0.4
SW
20
2.1
W
7
2
W
7
2.1
W
7
2
W
7
1.9
W
7
2.1
W
7
1.9
WNW
7
2.1
WNW
8
3
W
10
2.2
W
12
Wave Graph
Metric surfscale
Energy kJ
156
127
50
51
227
251
68
31
147
166
116
475
364
392
374
331
378
338
602
1568
1310
Wind (km/h)
20
NW
10
WSW
5
N
20
NW
30
WNW
10
NE
10
SE
15
SSW
5
N
20
NW
25
WNW
25
NW
25
NW
25
WNW
20
NW
25
NW
30
WNW
25
NNW
30
NW
25
WNW
10
NW
Wind State
cross-off
cross-on
off
cross-off
cross
off
cross
on
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
High Tide
7:36PM2.30m
8:09AM2.26m
8:26PM2.40m
9:00AM2.38m
9:11PM2.52m
9:44AM2.51m
9:52PM2.63m
10:24AM2.65m
10:33PM2.73m
11:02AM2.77m
11:15PM2.80m
11:42AM2.85m
11:57PM2.83m
Low Tide
1:24PM1.18m
2:02AM1.09m
2:21PM1.06m
2:51AM0.94m
3:09PM0.91m
3:32AM0.79m
3:51PM0.78m
4:11AM0.66m
4:31PM0.67m
4:51AM0.57m
5:12PM0.60m
5:31AM0.53m
5:53PM0.58m
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
rain showers
light rain
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
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—
6:24
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—
6:22
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—
6:20
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—
6:18
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—
6:18
—
—
6:16
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—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
7:45
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—
7:45
—
—
7:46
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—
7:47
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—
7:49
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—
7:50
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—
7:52
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1
3
—
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Temp °C
16
16
12
16
15
10
19
18
13
18
18
13
17
17
13
18
18
15
16
18
13
Feels °C
13
14
11
10
9
8
16
16
11
14
13
9
11
11
9
13
13
10
13
14
12
  • 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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