- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Kahuku Ranch surfForecast / HAW – Big Island / USA
48hr Weather and Surf, issued 7 am Wednesday 06 May 2026 HSTForecast update in hr min s Forecast update imminent
Kahuku Ranch surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahuku Ranch sea temperature is
25.6° C
(Which is slightly warmer than usual)How big are the waves at Kahuku Ranch today?
The current surf forecast for Kahuku Ranch at 3PM is: 0.5m 16s primary swell from a South direction (forecast issued at 07:00am May 06). An open ocean swell of 1.2m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 May) | 1.5ft (0.4m) | 18s |
| Afternoon (06 May) | 1.5ft (0.5m) | 16s |
| Evening (06 May) | 2ft (0.6m) | 16s |
Table - waves today at Kahuku Ranch. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 26°C on Thu morning, min 24°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 6 | Thursday 7 | Friday 8 | Sat 9 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 18 | SSW 18 | SSW 18 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 19 | SSW 15 | SSW 15 | S 18 | S 18 | NW 15 | S 18 | NW 14 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | S 16 | NW 12 | |
103 | 103 | 60 | 131 | 201 | 201 | 201 | 144 | 123 | 121 | 121 | 162 | 163 | 162 | 225 | 128 | 179 | 176 | 173 | 168 | 158 | 148 | 129 | 118 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | cross-off | glassy | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 5:45AM0.40m | 7:05PM0.81m | 6:41AM0.38m | 8:00PM0.78m | 8:19AM0.37m | 9:00PM0.76m | ||||||||||||||||||
Low Tide | 11:25AM0.16m | 2:39AM0.30m | 12:05PM0.21m | 3:52AM0.29m | 1:04PM0.27m | |||||||||||||||||||
 |  | |  | | | | | | | | | |  | | | | | | | |  | | | |
 | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | 5:50 |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:46 | — | — | 6:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 26 | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 26 | 26 | 25 | 24 | 24 | 24 |
26 | 26 | 27 | 27 | 28 | 26 | 25 | 27 | 26 | 24 | 25 | 27 | 27 | 25 | 25 | 24 | 25 | 24 | 26 | 26 | 25 | 23 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | SSW 15 | SSW 14 | ESE 9 | NW 15 | S 18 | NW 14 | ESE 9 | ESE 9 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 |
 kJ | 232 | 237 | 203 | 203 | 212 | 194 | 194 | 199 | 232 | 268 | 121 | 120 | 307 | 139 | 225 | 128 | 288 | 251 | 173 | 168 | 158 | 148 | 120 | 118 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | S 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | S 15 | SSW 15 | SSW 18 | S 18 | S 18 | S 18 | NW 15 | SSW 16 | NW 14 | NW 13 | S 17 | S 16 | SSW 16 | S 16 | S 16 | SSW 16 |
| kJ | 59 | 42 | 42 | 131 | 201 | 201 | 201 | 144 | 118 | 121 | 108 | 162 | 163 | 162 | 136 | 86 | 179 | 176 | 146 | 139 | 140 | 131 | 129 | 84 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 18 | SSW 18 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | SSW 19 | SSW 18 | NW 16 | NW 16 | SSW 14 | SSW 14 | NW 9 | SSW 13 | S 17 | S 17 | SSW 13 | SSW 13 | S 17 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 103 | 103 | 60 | 41 | 40 | 40 | 36 | 35 | 123 | 113 | 43 | 67 | 120 | 70 | 13 | 58 | 140 | 149 | 58 | 58 | 53 | 30 | 30 | 30 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NE 8 | ENE 4 | ESE 9 | ESE 9 | — | ESE 9 | ESE 9 | ESE 9 | — | — | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
| kJ | — | — | — | — | — | — | — | — | 10 | 7 | 307 | 349 | — | 307 | 349 | 328 | — | — | 281 | 275 | 275 | 300 | 300 | 333 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 57 | 198 | 0 | 112 | 75 | 62 | 100 | 0 | 81 | 112 | 107 | 108 | 62 | 108 | 108 |
Best forecast wave conditions in Big Island | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- 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 Kahuku Ranch 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.
Nearest