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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 Thursday 21 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
15.2° 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 7PM is: 0.2m 15s primary swell from a West-southwest direction and 0.1m 12s secondary swell from a Southwest direction, 0.3m 4s secondary swell from a West-northwest direction (forecast issued at 11:00am May 21). The wind direction is predicted to be cross-offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 0.5ft (0.2m) | 12s |
| Afternoon (21 May) | 0.5ft (0.2m) | 12s |
| Evening (21 May) | 0.5ft (0.2m) | 14s |
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 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WSW 12 | WSW 12 | WSW 12 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | W 10 | SW 14 | SW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | |
15 | 14 | 14 | 21 | 20 | 70 | 104 | 133 | 152 | 183 | 158 | 150 | 136 | 131 | 98 | 100 | 71 | 53 | 51 | 101 | 98 | 96 | 65 | 64 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | glassy | glassy | glassy | glassy | off | off | off | off | glassy | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | |
High Tide | 1:49PM2.58m | 2:16AM2.65m | 2:52PM2.47m | 3:20AM2.54m | 3:55PM2.38m | 4:25AM2.46m | ||||||||||||||||||
Low Tide | 7:40AM0.84m | 7:59PM0.89m | 8:40AM0.95m | 8:58PM1.01m | 9:42AM1.02m | 10:02PM1.09m | ||||||||||||||||||
 | | |  | | | |  |  | | | | | |  | | | |  | | | | | | |
 | 7:22 | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:24 |
 | — | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | 5:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 16 | 18 | 15 | 14 | 13 | 12 | 12 | 13 | 15 | 16 | 14 | 13 | 12 | 12 | 12 | 12 | 15 | 16 | 13 | 12 | 11 | 10 | 10 |
8 | 12 | 16 | 13 | 12 | 11 | 11 | 10 | 12 | 14 | 15 | 14 | 12 | 11 | 10 | 11 | 11 | 14 | 14 | 11 | 11 | 9 | 7 | 7 | |
Swell 1 Height (m) Direction Period (s) | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | W 10 | W 10 | W 10 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 |
 kJ | 15 | 14 | 14 | 6 | 20 | 70 | 104 | 133 | 152 | 183 | 158 | 150 | 136 | 131 | 98 | 100 | 71 | 50 | 47 | 101 | 98 | 96 | 65 | 64 |
Swell 2 Height (m) Direction Period (s) | W 19 | WNW 7 | NW 7 | WSW 15 | SW 12 | S 12 | WNW 4 | W 4 | W 4 | W 5 | SSW 5 | SSW 5 | S 5 | S 5 | S 8 | S 13 | SW 15 | SW 14 | SW 14 | S 12 | S 12 | SSW 10 | SSW 4 | SSW 16 |
| kJ | 7 | 5 | 2 | 21 | 5 | 3 | 3 | 3 | 3 | 2 | 5 | 5 | 2 | 2 | 6 | 13 | 35 | 53 | 51 | 11 | 11 | 21 | 2 | 48 |
Swell 3 Height (m) Direction Period (s) | W 19 | W 19 | W 15 | NW 7 | NW 7 | W 9 | S 11 | S 11 | S 10 | SSW 5 | SW 16 | SW 16 | S 9 | S 9 | S 13 | S 8 | S 13 | SSW 13 | SSW 13 | W 4 | W 11 | W 12 | S 10 | SSW 4 |
| kJ | 7 | 7 | 5 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 10 | 10 | 2 | 2 | 3 | 5 | 13 | 16 | 16 | 1 | 2 | 3 | 8 | 4 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NW 4 | WNW 4 | WNW 4 | WNW 4 | — | — | — | — | — | — | — | — | — | NW 3 | — | — | — | — | — | — | — | — |
| kJ | 12 | 10 | 5 | 1 | 3 | 3 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 91 | 91 | 91 | 61 | 91 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 39 | 39 | 20 | 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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