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Kahalu'u Beach Park Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Kahalu'u Beach Park surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Tuesday 21 Apr 2026 HSTForecast update in hr min s Forecast update imminent
Kahalu'u Beach Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahalu'u Beach Park sea temperature is
25.3° C
(Which is slightly warmer than usual)How big are the waves at Kahalu'u Beach Park today?
The current surf forecast for Kahalu'u Beach Park at 10AM is: 0.6m 13s primary swell from a West direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 07:00am April 21). The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Apr) | 2ft (0.6m) | 13s |
| Afternoon (21 Apr) | 1.5ft (0.5m) | 16s |
| Evening (21 Apr) | 2.5ft (0.7m) | 15s |
Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 16 | 16 | 15 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 16 | 13 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 123 | 125 | 173 | 122 | 122 | 212 | 239 | 272 | 264 | 264 | 264 | 264 | 257 | 250 | 181 | 229 | 173 | 171 | 168 | 168 | 168 | 147 | 128 | 123 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | glass | glass | cross- on | cross- on | on | on | cross- on | cross- on | glass | cross | cross- on | on | cross- on | cross- on | cross- on | glass | cross | cross | glass |
High Tide / height (m) | 6:07AM 0.29 | 7:38PM 0.79 | 7:27AM 0.26 | 8:48PM 0.75 | 9:43AM 0.26 | 10:01PM 0.71 | ||||||||||||||||||
Low Tide / height (m) | 2:12AM 0.20 | 11:39AM 0.08 | 3:44AM 0.20 | 12:31PM 0.14 | 5:05AM 0.18 | 1:51PM 0.20 | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Fri 24 | |||||||||||||||||||||
| Sunrise | - | 6:01 | - | - | - | - | - | - | - | 6:01 | - | - | - | - | - | - | - | 6:00 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:44 | - | - | - |
 |  | |  | |  | | | | | | | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 |
| Feels °C (?) | 27 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 27 | 27 | 27 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahalu'u Beach Park surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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