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Surf Forecasts:

Kai-Iwi surfForecast / Wanganui-Manawatu / New Zealand

information circle12 Day Weather and Surf, issued 12 pm Thursday 15 Jan 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
19.3° C
 (Which is 1.5°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 Thursday (Jan 15) at 7PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kai-Iwi in the next 12 days are 1.9m 7s and forecast to arrive on Saturday (Jan 17) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Thu 15th Jan)2.5ft (0.7m) 8s
Best Surf 7PM (Thu 15th Jan)2.5ft (0.7m) 8s
Most Powerful 7PM (Sat 17th Jan)6ft (1.9m) 7s

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 Heavy rain (total 22mm), heaviest during Thu morning. Warm (max 21°C on Thu afternoon, min 13°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue morning, min 11°C on Mon night). Winds decreasing (fresh winds from the ESE on Sun afternoon, light winds from the E by Tue night).

Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.3
WSW
0.5
WNW
0.9
S
0.4
SW
0.7
SSW
1.3
S
1
S
1.5
S
1.3
SSW
1
S
1.3
S
1
S
1.1
SSE
1.2
S
0.7
SSW
0.6
ESE
1.1
S
0.9
SSW
0.7
SE
1.1
S
0.8
SSW
Period(s) (?)10751466667776456446445
Wave
Graph
(?)Metric surfscale
Energy kJ (?)182943543313564151161941548643613584860184739
Wind
(km/h)
10
NE
10
N
5
SSE
5
NW
10
SW
15
E
20
ESE
20
SSE
25
ESE
30
SE
30
ESE
25
ESE
25
ESE
25
ESE
15
ESE
15
ESE
25
S
15
ESE
10
E
15
S
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		cross-
on		cross-
off		cross-
on		cross-
off		crosscross-
on		crosscrosscrosscrosscrosscrosscrosscrossoncrosscross-
off		oncross-
off
High Tide
/ height (m)
9:22PM
2.33
9:50AM
2.46
10:09PM
2.42
10:29AM
2.56
10:50PM
2.51
11:07AM
2.65
11:28PM
2.58
11:43AM
2.73
12:04AM
2.64
12:19PM
2.79
12:40AM
2.68
12:55PM
2.82
1:16AM
2.69
Low Tide
/ height (m)
3:19PM
1.19
3:38AM
1.09
4:03PM
1.10
4:21AM
1.01
4:42PM
1.02
4:59AM
0.93
5:19PM
0.95
5:36AM
0.86
5:55PM
0.88
6:12AM
0.80
6:32PM
0.83
6:48AM
0.77
7:10PM
0.80
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise6:07--6:09--6:09--6:11--6:11--6:13--6:15--
Sunset-8:50--8:49--8:49--8:47--8:47--8:46--8:46-
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
Rain (mm)
85531----------------
Temp. °C192118191916191915191914192115222217212218
Feels °C (?)20222020191615151013138151510181813191917
  • 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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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:
surf-forecast.com

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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