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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 Sunday 31 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
14.9° C
(Which is normal for this time of year)How big are the waves at Kai-Iwi today (31 May):
- Morning surf: Morning surf (31 May, local time) - 1ft (0.3m), 9s period with WNW swell.
- Afternoon surf: Afternoon surf (31 May, local time) - 1.5ft (0.4m), 10s period with WNW swell.
- Evening surf: Evening surf (31 May, local time) - 2ft (0.6m), 11s period with W swell.
The current surf forecast for Kai-Iwi at 2PM is: 0.4m 10s primary swell from a West-northwest direction and 0.2m 10s secondary swell from a South direction (forecast issued at 11:00am May 31). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | 1ft (0.3m) | 9s |
| Afternoon (31 May) | 1.5ft (0.4m) | 10s |
| Evening (31 May) | 2ft (0.6m) | 11s |
Table - waves today at Kai-Iwi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 29mm), heaviest during Mon night. Warm (max 20°C on Mon afternoon, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WNW 9 | WNW 10 | WNW 10 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | WNW 11 | WNW 10 | WNW 11 | WNW 11 | W 9 | NW 9 | WNW 9 | WNW 5 | W 9 | W 9 | W 7 | W 8 | |
16 | 19 | 35 | 59 | 86 | 85 | 86 | 121 | 116 | 112 | 116 | 119 | 68 | 62 | 93 | 103 | 83 | 112 | 111 | 36 | 85 | 349 | 407 | 501 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross | glassy | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 10:15AM2.56m | 10:33PM2.68m | 10:51AM2.58m | 11:07PM2.70m | 11:26AM2.58m | 11:41PM2.69m | ||||||||||||||||||
Low Tide | 4:25PM0.84m | 4:45AM0.91m | 5:01PM0.86m | 5:20AM0.94m | 5:36PM0.89m | 5:56AM0.97m | ||||||||||||||||||
 | | |  | | |  | |  | | | | |  | |  |  | |  | | | | | | |
 | 7:31 | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:33 |
 | — | — | 5:04 | — | — | — | — | — | — | — | 5:02 | — | — | — | — | — | — | — | 5:02 | — | — | — | — | 5:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 15 | 10 | — | 1 | — | — | — | — | — | |
Temp °C | 16 | 18 | 18 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 15 | 14 | 16 | 16 | 15 | 14 | 13 | 13 | 13 |
13 | 14 | 14 | 14 | 12 | 13 | 15 | 14 | 17 | 16 | 18 | 16 | 16 | 16 | 17 | 15 | 14 | 16 | 15 | 14 | 12 | 10 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 10 | WNW 10 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | WNW 11 | WNW 10 | WNW 11 | WNW 11 | W 9 | W 9 | W 8 | W 8 | W 9 | SW 15 | SW 15 | WSW 14 |
 kJ | 16 | 19 | 35 | 59 | 86 | 85 | 86 | 121 | 116 | 112 | 116 | 119 | 68 | 62 | 93 | 103 | 83 | 78 | 71 | 35 | 85 | 9 | 8 | 19 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | WNW 5 | WNW 5 | S 9 | S 14 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WNW 5 | W 5 | W 5 | W 16 | SW 16 | SW 15 | SW 15 | — |
| kJ | 9 | 9 | 8 | 8 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 4 | 39 | 35 | 33 | 32 | 6 | 5 | 5 | 5 | 10 | 9 | 8 | — |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | — | — | S 10 | S 10 | S 10 | S 15 | S 9 | S 9 | — | — | S 13 | — | W 10 | — | — | — | — | — | W 16 | — | — | — |
| kJ | 6 | 7 | — | — | 2 | 2 | 2 | 4 | 2 | 2 | — | — | 3 | — | 17 | — | — | — | — | — | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | N 3 | N 3 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 4 | N 4 | N 4 | NNW 3 | N 3 | N 4 | NNW 4 | NNE 3 | — | — | NW 9 | WNW 9 | WNW 5 | WNW 5 | W 9 | W 7 | W 8 |
| kJ | 1 | 5 | 8 | 16 | 22 | 22 | 29 | 31 | 13 | 7 | 2 | 3 | 9 | 15 | 4 | — | — | 112 | 111 | 36 | 31 | 349 | 407 | 501 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 91 | 18 | 18 | 18 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 13 | 13 | 18 | 0 |
Best forecast wave conditions in Wanganui and the Manawatu | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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