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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 5 am Thursday 18 Sep 2025 NZST
How big are the waves at Kai-Iwi today?
The current surf forecast for Kai-Iwi at 12PM is: 2.5m 11s primary swell from a West direction and 0.1m 10s secondary swell from a South direction, 0.1m 12s secondary swell from a South direction (forecast issued at 05:00am September 18). The wind direction is predicted to be cross-shore.
| Time (NZST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 10ft (3.0m) | 11s |
| Afternoon (18 Sep) | 8ft (2.5m) | 11s |
| Evening (18 Sep) | 10ft (3.0m) | 11s |
Table - waves today at Kai-Iwi. (Swell directed towards the surf break)
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 10 | 11 | 11 | 11 | 11 | 11 | 8 | 10 | 10 | 11 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1336 | 1936 | 1873 | 1768 | 1643 | 1739 | 1980 | 1220 | 1325 | 706 | 505 | 828 | 681 | 660 | 567 | 540 | 459 | 452 | 355 | 283 | 263 | 198 | 184 | 100 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross | cross | cross | cross | cross | on | cross- on | cross- on | cross | cross- on | cross- on | cross- off | cross- off | off | off | off | cross- on | cross- on | glass | off | off |
High Tide / height (m) | 7:38AM 2.37 | 8:09PM 2.53 | 8:33AM 2.47 | 8:56PM 2.63 | 9:18AM 2.57 | 9:36PM 2.70 | ||||||||||||||||||
Low Tide / height (m) | 1:29AM 1.12 | 1:55PM 1.07 | 2:24AM 0.99 | 2:46PM 0.93 | 3:09AM 0.86 | 3:28PM 0.81 | ||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sun 21 | |||||||||||||||||||||
| Sunrise | - | - | 6:16 | - | - | - | - | - | - | - | 6:15 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 6:12 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:14 | - | - |
 |  |  |  | |  |  | |  | | | | | | | | | | | | | | | | |
Rain (mm) | - | 2 | 1 | - | - | - | - | - | 2 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 14 | 16 | 14 | 12 | 11 | 12 | 10 | 9 | 8 | 9 | 11 | 10 | 7 | 6 | 5 | 4 | 8 | 12 | 13 | 12 | 9 | 10 |
| Feels °C (?) | 8 | 9 | 9 | 11 | 8 | 6 | 6 | 6 | 5 | 4 | 4 | 7 | 7 | 7 | 3 | 2 | 2 | 1 | 5 | 8 | 10 | 10 | 6 | 6 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wanganui-Manawatu
Still cross-shore at Kai-Iwi (moderate winds from the W at WanganuiAeroAws 11 km from Kai-Iwi). 2.7m 11s groundswell from the W to make surfable waves.
Actual: 55 min ago
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