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Surf Forecasts:

Kai-Iwi surfForecast / Wanganui-Manawatu / New Zealand

information circle12 Day Weather and Surf, issued 6 am Tuesday 17 Feb 2026 NZDT
Forecast update in hr  min  s Forecast update imminent
Kai-Iwi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kai-Iwi sea temperature is
20.9° C
 (Which is 2.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Kai-Iwi this week:

The surf forecast for Kai-Iwi over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Feb 17) at 10PM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 12 days are 3.5m 9s and forecast to arrive on Friday (Feb 20) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Tuesday (Feb 24) at 10AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 17th Feb)2.5ft (0.8m) 5s
Best Surf10PM (Fri 20th Feb)11ft (3.5m) 9s
Most Powerful10PM (Fri 20th Feb)11ft (3.5m) 9s

Table - best surf conditions forecast for Kai-Iwi over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Some drizzle, heaviest during Tue afternoon. Warm (max 21°C on Thu afternoon, min 13°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the WNW by Thu morning).

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Sun afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri morning, light winds from the E by Sat morning).

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
1
2
0
1
2
0
0
1
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
W
0.9
W
0.4
SSW
0.4
SSW
0.2
WSW
0.2
WSW
1.9
W
1.9
W
3
W
3
W
2.5
W
2.5
WSW
1.4
WSW
0.8
S
1.9
W
2.2
W
2.1
W
2
W
1.3
W
0.9
W
0.5
SW
Period(s) (?)6588201867898991278777713
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5741222238312993311116144685310703111803575534253961768185
Wind
(km/h)
15
NNW
15
WSW
5
NNE
5
NNW
15
WSW
10
NW
25
NW
30
WNW
30
WNW
35
WNW
35
WNW
15
W
5
E
15
SW
20
NW
25
NW
35
WNW
20
WNW
10
NW
15
W
10
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
on		offglasscross-
on		cross-
off		cross-
off		crosscrosscrosscrosscross-
on		cross-
off		cross-
on		cross-
off		cross-
off		crosscrosscross-
off		cross-
on		cross-
off
High Tide
/ height (m)
11:19AM
2.76
11:41PM
2.69
11:55AM
2.84
12:16AM
2.76
12:30PM
2.89
12:51AM
2.79
1:06PM
2.90
1:28AM
2.79
1:43PM
2.85
2:07AM
2.74
2:23PM
2.76
2:50AM
2.65
3:09PM
2.63
3:40AM
2.53
Low Tide
/ height (m)
5:32PM
0.76
5:48AM
0.68
6:08PM
0.67
6:23AM
0.63
6:45PM
0.63
7:00AM
0.63
7:24PM
0.63
7:39AM
0.68
8:04PM
0.68
8:21AM
0.77
8:46PM
0.78
9:08AM
0.90
9:32PM
0.91
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise6:47--6:48--6:50--6:50--6:52--6:52--6:54--
Sunset-8:20--8:17--8:16--8:15--8:14--8:13--8:12-
cloud
rain showers
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
-1-------------------
Temp. °C191916201915202117191916181814202118202015
Feels °C (?)171717181713151713131311161511151515181814
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kai-Iwi surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Kai-Iwi at:
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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 12 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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