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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 pm Friday 15 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
15.3° C
(Which is slightly cooler than normal)How big are the waves at Kai-Iwi today?
The current surf forecast for Kai-Iwi at 5AM is: 0.4m 12s primary swell from a South-southwest direction and 0.6m 5s secondary swell from a South direction, 0.4m 3s secondary swell from a East-southeast direction (forecast issued at 11:00pm May 15). The wind direction is predicted to be cross-offshore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | 1.5ft (0.4m) | 12s |
| Afternoon (16 May) | 1.5ft (0.4m) | 13s |
| Evening (16 May) | 1.5ft (0.4m) | 19s |
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 14°C on Sun afternoon, min 7°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | ||||||||||||||||||||||
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 | 9 AM | 12 PM | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
SSW 13 | SW 13 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 20 | SW 19 | SW 18 | WSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | |
60 | 44 | 55 | 50 | 47 | 45 | 43 | 97 | 96 | 84 | 123 | 152 | 147 | 130 | 125 | 124 | 122 | 115 | 54 | 53 | 52 | 51 | 48 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | glassy | on | glassy | |
High Tide | 9:14PM2.73m | 9:28AM2.77m | 10:00PM2.84m | 10:17AM2.82m | 10:46PM2.91m | 11:07AM2.83m | ||||||||||||||||||
Low Tide | 3:25AM0.65m | 3:47PM0.55m | 4:12AM0.59m | 4:34PM0.53m | 5:00AM0.59m | 5:22PM0.57m | ||||||||||||||||||
 | | | |  | | | | | | | | | | | | | | | | | | | | |
 | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:20 | — | — | — | — |
 | — | — | — | — | — | — | 5:14 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:12 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 8 | 8 | 7 | 7 | 11 | 12 | 9 | 9 | 9 | 8 | 8 | 9 | 13 | 14 | 11 | 9 | 8 | 8 | 8 | 8 | 12 | 14 | 12 |
7 | 5 | 5 | 4 | 3 | 7 | 8 | 4 | 4 | 5 | 5 | 5 | 6 | 9 | 10 | 7 | 5 | 5 | 5 | 6 | 6 | 10 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | S 5 | SSW 5 | S 5 | S 5 | S 5 | SSW 12 | SSW 11 | SSW 11 | S 5 | S 5 | WSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SSE 9 | SW 14 | SW 14 | SW 14 | SW 13 |
 kJ | 19 | 30 | 20 | 14 | 14 | 45 | 24 | 23 | 11 | 12 | 123 | 152 | 147 | 130 | 125 | 124 | 122 | 115 | 54 | 27 | 52 | 51 | 48 | 45 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SW 13 | SW 13 | SW 20 | SW 19 | SW 18 | SSW 5 | SSW 4 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | SW 14 | S 9 | S 9 | S 9 | S 8 |
| kJ | 60 | 34 | 55 | 50 | 47 | 40 | 40 | 97 | 96 | 84 | 7 | 4 | 19 | 18 | 18 | 17 | 17 | 7 | 7 | 53 | 6 | 14 | 6 | 5 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 21 | WSW 21 | SW 13 | SSW 11 | S 11 | S 10 | S 10 | S 4 | WSW 12 | WSW 12 | S 16 | S 4 | S 16 | — | S 15 | S 4 | SW 20 | SW 19 | SW 19 |
| kJ | 45 | 44 | 45 | 45 | 44 | 45 | 43 | 42 | 23 | 20 | 19 | 19 | 3 | 14 | 14 | 5 | 3 | 5 | — | 4 | 1 | 15 | 15 | 14 |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | ESE 3 | ESE 3 | ESE 3 | SSE 5 | SSE 3 | SSE 4 | ESE 3 | ESE 3 | ESE 3 | ESE 3 | ESE 3 | SE 3 | SSE 3 | SE 3 | ESE 3 | ESE 3 | ESE 3 | ESE 3 | — | — | — | — |
| kJ | — | 3 | 3 | 3 | 3 | 28 | 12 | 17 | 8 | 8 | 6 | 4 | 4 | 5 | 7 | 9 | 7 | 8 | 4 | 2 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 20 | 0 | 0 | 0 | 39 | 118 | 118 | 118 | 118 | 11 | 20 | 0 | 0 | 39 | 123 | 118 | 39 | 0 | 18 | 18 | 18 | 0 | 112 | 18 |
Best forecast wave conditions in Wanganui and the Manawatu | ||||||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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