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Surf Forecasts:
Kai-Iwi surfForecast / Wanganui-Manawatu / New Zealand
48hr Weather and Surf, issued 6 pm Wednesday 17 Dec 2025 NZDTForecast 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
19.4° C
(Which is 3.1°C warmer than normal for this time of year)How big are the waves at Kai-Iwi today?
The current surf forecast for Kai-Iwi at 9PM is: 1.0m 14s primary swell from a West-southwest direction and 1.4m 10s secondary swell from a West direction, 0.5m 4s secondary swell from a South-southwest direction (forecast issued at 06:00pm December 17). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (NZDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | - | - |
| Afternoon (17 Dec) | 6ft (1.9m) | 15s |
| Evening (17 Dec) | 3.5ft (1.0m) | 14s |
Table - waves today at Kai-Iwi. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 14 | 9 | 9 | 8 | 8 | 8 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1399 | 463 | 419 | 340 | 304 | 284 | 279 | 271 | 212 | 130 | 286 | 461 | 671 | 728 | 657 | 506 | 373 | 447 | 698 | 1087 | 1692 | 1382 | 859 | 970 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | off | off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross- off | cross- off | cross | cross | cross | cross | cross |
High Tide / height (m) | 9:50PM 2.40 | 10:15AM 2.52 | 10:31PM 2.46 | 10:52AM 2.60 | 11:10PM 2.52 | 11:27AM 2.65 | ||||||||||||||||||
Low Tide / height (m) | 3:47PM 1.07 | 4:03AM 0.97 | 4:27PM 1.02 | 4:42AM 0.93 | 5:04PM 0.98 | 5:20AM 0.91 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:47 | - | - |
| Sunset | - | 8:45 | - | - | - | - | - | - | - | 8:45 | - | - | - | - | - | - | - | 8:46 | - | - | - | - | - | - |
 |  |  | |  |  | | | | | | |  | | |  | | |  |  | | |  | | |
Rain (mm) | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | 3 | 1 | - | - | 1 | - |
| Temp. °C | 15 | 14 | 12 | 11 | 12 | 13 | 15 | 18 | 18 | 17 | 15 | 15 | 15 | 16 | 18 | 19 | 19 | 19 | 16 | 15 | 14 | 14 | 15 | 15 |
| Feels °C (?) | 11 | 12 | 10 | 8 | 9 | 9 | 11 | 13 | 13 | 13 | 12 | 11 | 10 | 11 | 14 | 14 | 14 | 13 | 13 | 10 | 8 | 9 | 9 | 9 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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