Surf Forecasts:
Kahuku Ranch surf forecast from 10 Jun 2026:
- Best quality surf: Sunday 14 Jun, 11AM (local time) - 4.5ft (1.3m), 18s period, SSW swell with cross-offshore winds.
- Most powerful swell: Saturday 13 Jun, 8PM (local time) - 4ft (1.2m), 21s period, SSW swell with 1,162 kJ wave energy.
- Next surfable swell (1★+): Thursday 11 Jun, 11AM (local time) - 1.5ft (0.5m), 18s period with S swell.
Best Forecast Surf Conditions for Kahuku Ranch this week:
The surf forecast for Kahuku Ranch over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 11) at 11AM. The primary swell is predicted to be 0.5m and 18s period with a secondary swell of 0.4m and 11s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kahuku Ranch in the next 16 days are 1.2m 21s and forecast to arrive on Saturday (Jun 13) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 8s period and expected on Wednesday (Jun 10) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 11th Jun) | 1.5ft (0.5m) 18s |
| Best Surf | 11AM (Sun 14th Jun) | 4.5ft (1.3m) 18s |
| Most Powerful | 8PM (Sat 13th Jun) | 4ft (1.2m) 21s |
Table - best surf conditions forecast for Kahuku Ranch over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 26°C on Wed morning, min 23°C on Fri night). Winds decreasing (fresh winds from the ENE on Wed afternoon, light winds from the ENE by Fri afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 14 | S 13 | S 18 | S 18 | S 16 | S 16 | S 15 | SSW 26 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 57 | 87 | 101 | 154 | 130 | 183 | 153 | 222 | 433 | 616 | 801 | 813 | 1062 | 972 | 1024 | 793 | 763 | 543 | 529 | 492 | 378 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore 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 | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:33PM0.81m | 11:45PM0.57m | 1:22PM0.92m | 00:45AM0.53m | 2:09PM1.01m | 1:43AM0.50m | 2:56PM1.08m | 2:36AM0.48m | 3:42PM1.12m | 3:29AM0.48m | 4:29PM1.12m | 4:21AM0.47m | 5:16PM1.10m | ||||||||
Low Tide | 6:51PM0.35m | 6:07AM0.06m | 8:00PM0.29m | 6:52AM0.02m | 8:58PM0.23m | 7:37AM-0.02m | 9:50PM0.19m | 8:24AM-0.04m | 10:40PM0.16m | 9:12AM-0.04m | 11:29PM0.15m | 10:00AM-0.02m | 00:16AM0.15m | ||||||||
 |  |  | | | | | |  | | | | | |  | | | | | | | |
 | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — |
 | — | 6:59 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 26 | 25 | 24 |
Feels °C | 24 | 24 | 23 | 25 | 25 | 23 | 25 | 27 | 25 | 26 | 25 | 23 | 26 | 28 | 25 | 26 | 26 | 21 | 26 | 26 | 23 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | SSE 13 | S 18 | S 16 | S 16 | S 15 | E 7 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 |
| kJ | 57 | 87 | 58 | 154 | 130 | 183 | 153 | 85 | 433 | 616 | 801 | 813 | 1062 | 972 | 1024 | 793 | 763 | 543 | 529 | 492 | 378 |
Swell 2 Height (m) Direction Period (s) | S 10 | WNW 12 | S 18 | NW 11 | WNW 11 | S 12 | WNW 10 | S 15 | S 14 | S 13 | S 13 | S 12 | S 12 | ESE 12 | SSE 12 | SSE 11 | SSE 11 | SE 16 | SE 15 | SE 15 | S 18 |
| kJ | 33 | 56 | 101 | 30 | 46 | 45 | 20 | 150 | 91 | 173 | 125 | 74 | 76 | 184 | 46 | 43 | 39 | 64 | 57 | 55 | 155 |
Swell 3 Height (m) Direction Period (s) | WNW 12 | S 10 | WNW 12 | S 12 | S 12 | WNW 11 | SW 20 | SSW 26 | S 11 | SW 18 | SW 18 | SW 16 | SSW 12 | WNW 13 | SE 18 | SE 17 | SE 16 | SSE 11 | NE 9 | NE 9 | SE 14 |
| kJ | 30 | 32 | 54 | 47 | 46 | 44 | 97 | 222 | 37 | 81 | 109 | 96 | 14 | 17 | 49 | 70 | 68 | 23 | 22 | 21 | 100 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | — | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | E 5 | ENE 6 | E 6 | E 5 | E 4 | E 4 | E 4 |
| kJ | 229 | 223 | 191 | 186 | 159 | 110 | 87 | — | 65 | 61 | 60 | 72 | 43 | 58 | 53 | 135 | 62 | 44 | 18 | 11 | 41 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 112 | 112 | 81 | 0 | 75 | 62 | 0 | 0 | 0 | 0 | 200 | 100 | 0 | 0 | 62 | 0 | 112 | 108 | 0 | 0 | 75 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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