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Kai-Iwi Surf Forecast
/ Wanganui-Manawatu (16 surf breaks) /
Surf Forecasts:
Kai-Iwi surfForecast / Wanganui-Manawatu / New Zealand
16 Day Weather and Surf, issued 11 am Thursday 28 May 2026 NZSTForecast 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
15.1° C
(Which is normal for this time of year)Kai-Iwi surf forecast from 28 May 2026:
- Best quality surf: Thursday 28 May, 9PM (local time) - 2.5ft (0.8m), 14s period, S swell with offshore winds.
- Most powerful swell: Wednesday 3 Jun, 6AM (local time) - 7ft (2.1m), 8s period, W swell with 504 kJ wave energy.
- Next surfable swell (1★+): Thursday 28 May, 9PM (local time) - 2.5ft (0.8m), 14s period with S 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 Thursday (May 28) at 9PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.7m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kai-Iwi in the next 16 days are 2.1m 8s and forecast to arrive on Wednesday (Jun 03) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Tuesday (Jun 02) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 28th May) | 2.5ft (0.8m) 14s |
| Best Surf | 9PM (Thu 28th May) | 2.5ft (0.8m) 14s |
| Most Powerful | 6AM (Wed 3rd Jun) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Kai-Iwi over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 10°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Tue afternoon. Warm (max 20°C on Sun afternoon, min 15°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
S 14 | S 14 | S 15 | S 15 | S 14 | S 13 | S 12 | SSW 12 | SSW 11 | S 11 | WNW 10 | W 11 | W 10 | W 11 | W 10 | W 9 | W 9 | W 7 | W 8 | W 7 | WNW 6 | |
148 | 181 | 294 | 275 | 198 | 126 | 75 | 48 | 25 | 9 | 31 | 86 | 56 | 61 | 74 | 41 | 41 | 306 | 451 | 205 | 101 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross | cross-off | glassy | cross-on | off | off | glassy | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross | cross-off | |
High Tide | 8:45PM2.50m | 8:59AM2.49m | 9:24PM2.58m | 9:38AM2.53m | 9:59PM2.64m | 10:15AM2.56m | 10:33PM2.68m | 10:51AM2.58m | 11:07PM2.70m | 11:26AM2.58m | 11:41PM2.69m | 12:02PM2.55m | 00:18AM2.66m | ||||||||
Low Tide | 2:30PM0.91m | 2:55AM0.96m | 3:11PM0.86m | 3:34AM0.92m | 3:49PM0.84m | 4:10AM0.91m | 4:25PM0.84m | 4:45AM0.91m | 5:01PM0.86m | 5:20AM0.94m | 5:36PM0.89m | 5:56AM0.97m | 6:12PM0.93m | ||||||||
 | |  | | | | | | | |  |  |  | |  | |  |  |  | | | |
 | 7:28 | — | — | 7:28 | — | — | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — |
 | — | 5:05 | — | — | 5:05 | — | — | 5:04 | — | — | 5:04 | — | — | 5:02 | — | — | 5:02 | — | — | 5:02 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 1 | — | — | |
Temp °C | 15 | 15 | 12 | 14 | 15 | 11 | 15 | 17 | 13 | 19 | 20 | 18 | 19 | 19 | 20 | 20 | 18 | 16 | 16 | 15 | 13 |
12 | 13 | 11 | 13 | 13 | 9 | 13 | 16 | 11 | 16 | 17 | 15 | 16 | 17 | 17 | 19 | 18 | 16 | 12 | 12 | 10 | |
Swell 1 Height (m) Direction Period (s) | S 14 | W 6 | S 15 | S 15 | S 14 | S 13 | S 12 | SSW 12 | SSW 11 | S 11 | WNW 10 | W 11 | W 10 | W 11 | W 10 | W 9 | W 9 | SW 15 | WSW 13 | WSW 12 | W 6 |
 kJ | 132 | 76 | 294 | 275 | 198 | 126 | 75 | 48 | 25 | 9 | 31 | 86 | 56 | 61 | 74 | 41 | 41 | 9 | 17 | 55 | 71 |
Swell 2 Height (m) Direction Period (s) | SW 14 | S 14 | W 6 | WSW 6 | SW 16 | SW 15 | SW 14 | WSW 13 | WSW 13 | WNW 8 | S 10 | S 10 | S 9 | S 9 | WNW 10 | WNW 9 | WNW 10 | SW 16 | — | S 7 | WSW 10 |
| kJ | 33 | 181 | 27 | 11 | 63 | 33 | 31 | 35 | 17 | 7 | 8 | 8 | 2 | 2 | 34 | 8 | 11 | 9 | — | 9 | 58 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 14 | WSW 14 | WSW 14 | W 6 | WSW 8 | WSW 8 | NNW 3 | NW 6 | NW 4 | SW 12 | S 10 | S 14 | S 14 | — | — | — | — | — | W 18 | SSW 8 |
| kJ | 8 | 30 | 18 | 18 | 5 | 7 | 7 | 1 | 1 | 1 | 6 | 2 | 4 | 4 | — | — | — | — | — | 6 | 20 |
Wind waves Height (m) Direction Period (s) | W 6 | — | — | — | — | ESE 2 | — | — | NNW 2 | N 2 | NNW 3 | NNW 4 | NNW 3 | NNW 4 | — | ESE 3 | NNW 3 | W 7 | W 8 | W 7 | WNW 6 |
| kJ | 148 | — | — | — | — | 1 | — | — | 1 | 1 | 3 | 11 | 9 | 15 | — | 1 | 7 | 306 | 451 | 205 | 101 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 118 | 13 | 0 | 0 | 96 | 0 | 0 | 0 | 91 | 91 | 18 | 0 | 18 | 0 | 0 | 18 | 18 | 0 | 131 | 133 | 0 |
Best forecast wave conditions in Wanganui and the Manawatu | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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.
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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