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Kahuku Ranch surfForecast / HAW – Big Island / USA
12 Day Weather and Surf, issued 1 pm Saturday 26 Apr 2025 HST
Best Forecast Surf Conditions for Kahuku Ranch this week:
The surf forecast for Kahuku Ranch over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Apr 26) at 8PM. The primary swell is predicted to be 0.5m and 16s period with a secondary swell of 0.4m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kahuku Ranch in the next 12 days are 0.8m 19s and forecast to arrive on Wednesday (Apr 30) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 7s period and expected on Friday (May 02) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 26th Apr) | 1.5ft (0.5m) 16s |
| Best Surf | 5PM (Tue 29th Apr) | 1.5ft (0.5m) 21s |
| Most Powerful | 8AM (Wed 30th Apr) | 2.5ft (0.8m) 19s |
Table - best surf conditions forecast for Kahuku Ranch over the next 12 days.
Sat 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thu 08 | ||||||||||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 18 | 15 | 14 | 13 | 13 | 16 | 12 | 11 | 11 | 21 | 20 | 19 | 18 | 17 | 16 | 16 | 14 | 14 | 14 | 13 | 13 | 22 | 16 | 20 | 18 | 18 | 16 | 16 | 15 | 15 | 14 | 14 | 17 | 16 | 16 | 15 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 102 | 106 | 162 | 140 | 130 | 78 | 67 | 42 | 37 | 231 | 282 | 365 | 418 | 404 | 427 | 337 | 218 | 273 | 144 | 127 | 121 | 91 | 78 | 127 | 165 | 104 | 87 | 86 | 42 | 42 | 41 | 39 | 95 | 91 | 193 | 179 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:10PM 1.00 | 3:00AM 0.69 | 3:52PM 1.06 | 3:40AM 0.62 | 4:36PM 1.08 | 4:21AM 0.55 | 5:22PM 1.06 | 5:03AM 0.48 | 6:11PM 1.01 | 5:51AM 0.42 | 7:07PM 0.93 | 6:55AM 0.38 | 8:11PM 0.86 | 8:40AM 0.37 | 9:21PM 0.80 | 10:44AM 0.41 | 10:30PM 0.76 | 12:02PM 0.50 | 11:28PM 0.73 | 12:50PM 0.59 | 12:15AM 0.70 | 1:25PM 0.68 | 12:55AM 0.67 | 1:56PM 0.77 | ||||||||||||
Low Tide / height (m) | 9:32PM 0.15 | 9:02AM -0.04 | 10:24PM 0.15 | 9:36AM -0.04 | 11:18PM 0.17 | 10:12AM -0.02 | 12:15AM 0.20 | 10:50AM 0.03 | 1:20AM 0.24 | 11:31AM 0.09 | 2:37AM 0.26 | 12:20PM 0.17 | 4:02AM 0.26 | 1:28PM 0.25 | 5:11AM 0.24 | 3:10PM 0.32 | 5:56AM 0.21 | 4:56PM 0.34 | 6:28AM 0.18 | 6:14PM 0.33 | 6:55AM 0.15 | 7:13PM 0.31 | 7:18AM 0.12 | |||||||||||||
Sat 26 | Sunday 27 | Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thu 08 | ||||||||||||||||||||||||
| Sunrise | - | - | 5:56 | - | - | 5:56 | - | - | 5:56 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:54 | - | - | 5:52 | - | - | 5:52 | - | - | 5:52 | - | - | 5:50 | - | - | 5:50 |
| Sunset | 6:43 | - | - | 6:43 | - | - | 6:44 | - | - | 6:44 | - | - | 6:44 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:46 | - | - |
 |  |  | |  | | | | | |  | |  | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | 2 | - | - | - | - | - | - | - | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | 1 | - |
| Temp. °C | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 |
| Feels °C (?) | 23 | 23 | 24 | 23 | 24 | 24 | 24 | 23 | 25 | 25 | 24 | 23 | 25 | 22 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 19 | 20 | 21 | 21 | 21 | 22 | 21 | 22 | 22 | 21 | 23 | 22 | 22 | 24 |
Short Range Forecast: Light rain (total 2mm), mostly falling on Sun night. Warm (max 25°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 25°C on Tue afternoon, min 23°C on Tue night). Winds increasing (light winds from the ESE on Tue afternoon, fresh winds from the ENE by Thu night). | Days 6-9 Weather Summary Mostly dry. Warm (max 25°C on Fri afternoon, min 23°C on Fri night). Mainly strong winds. | Long Range Forecast: Light rain (total 3mm), mostly falling on Tue afternoon. Warm (max 25°C on Mon afternoon, min 23°C on Mon night). Winds decreasing (fresh winds from the ENE on Mon night, light winds from the E by Thu afternoon). | |||||||||||||||||||||||||||||||||
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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.
Information about the Kahuku Ranch Surf forecast
The above surf forecast table for Kahuku Ranch provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kahuku Ranch can be found by selecting the local surf guide option on the grey menu. Our Kahuku Ranch surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kahuku Ranch) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Kahuku Ranch may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Kahuku Ranch is 107 km (66 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.
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