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Kai-Iwi Surf Forecast
/ Wanganui-Manawatu (16 surf breaks) /
Surf Forecasts:
Kai-Iwi surfForecast / Wanganui-Manawatu / New Zealand
48hr Weather and Surf, issued 11 am Wednesday 20 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
15.4° C
(Which is normal for this time of year)How big are the waves at Kai-Iwi today?
The current surf forecast for Kai-Iwi at 6PM is: 0.4m 13s primary swell from a Southwest direction (forecast issued at 11:00am May 20). The wind direction is predicted to be glassy.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 1.5ft (0.4m) | 14s |
| Afternoon (20 May) | 1.5ft (0.4m) | 13s |
| Evening (20 May) | 1ft (0.3m) | 13s |
Table - waves today at Kai-Iwi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 9°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 15 | WSW 14 | WSW 15 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
46 | 45 | 45 | 45 | 27 | 27 | 26 | 16 | 15 | 14 | 14 | 21 | 20 | 42 | 108 | 178 | 210 | 213 | 198 | 184 | 167 | 131 | 125 | 128 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | glassy | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | glassy | glassy | on | glassy | glassy | off | cross-off | off | |
High Tide | 12:50PM2.69m | 1:17AM2.77m | 1:49PM2.58m | 2:16AM2.65m | 2:52PM2.47m | 3:20AM2.54m | ||||||||||||||||||
Low Tide | 6:43AM0.73m | 7:03PM0.76m | 7:40AM0.84m | 7:59PM0.89m | 8:40AM0.95m | 8:58PM1.01m | ||||||||||||||||||
 | | |  | | | | | | | | |  | | | |  | | | | | | |  | |
 | 7:22 | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:24 |
 | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — | — | — | 5:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 14 | 16 | 13 | 12 | 11 | 10 | 9 | 10 | 16 | 18 | 15 | 13 | 13 | 13 | 12 | 13 | 16 | 16 | 13 | 12 | 12 | 11 | 11 |
8 | 12 | 14 | 12 | 10 | 8 | 7 | 6 | 7 | 12 | 15 | 13 | 11 | 11 | 11 | 11 | 12 | 15 | 14 | 13 | 11 | 11 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 12 | WNW 7 | WNW 7 | WNW 8 | WNW 4 | WNW 5 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | 46 | 45 | 45 | 45 | 27 | 27 | 26 | 16 | 15 | 5 | 5 | 6 | 4 | 7 | 108 | 178 | 210 | 213 | 198 | 184 | 167 | 131 | 125 | 128 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | — | — | S 7 | — | — | W 19 | WNW 6 | WSW 12 | WSW 12 | WSW 15 | WNW 8 | WSW 15 | WNW 4 | WNW 4 | WNW 4 | S 5 | SSW 5 | SSW 5 | S 5 | S 5 | S 8 | S 8 |
| kJ | 1 | 1 | — | — | 1 | — | — | 7 | 4 | 14 | 14 | 21 | 6 | 42 | 8 | 3 | 4 | 2 | 5 | 5 | 2 | 2 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | S 7 | S 7 | — | — | — | — | W 19 | W 18 | W 16 | SW 12 | WSW 14 | WNW 8 | NW 8 | S 11 | S 10 | S 10 | SW 16 | SW 16 | SW 16 | S 9 | S 5 | S 13 |
| kJ | — | — | 1 | 1 | — | — | — | — | 7 | 7 | 5 | 6 | 20 | 6 | 3 | 2 | 2 | 2 | 10 | 10 | 11 | 6 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | NNW 2 | — | WNW 4 | NW 3 | NW 3 | NW 4 | NW 4 | NNW 4 | NW 4 | NW 4 | — | — | — | — | — | — | — | — | — | — | — | NW 3 |
| kJ | — | — | 1 | — | 1 | 1 | 5 | 6 | 6 | 9 | 7 | 4 | — | — | — | — | — | — | — | — | — | — | — | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 18 | 91 | 39 | 39 | 39 | 39 | 91 | 91 | 91 | 103 | 213 | 18 | 18 | 18 | 0 | 0 | 0 | 0 | 61 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Wanganui and the Manawatu | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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