Surf Forecasts:
Kahalu'u surf forecast from 12 Jun 2026:
- Best quality surf: Saturday 13 Jun, 8PM (local time) - 3.5ft (1.0m), 21s period, SSW swell with glassy winds.
- Most powerful swell: Sunday 14 Jun, 8AM (local time) - 4.5ft (1.3m), 19s period, SSW swell with 1,169 kJ wave energy.
- Next surfable swell (1★+): Thursday 11 Jun, 11PM (local time) - 2ft (0.6m), 16s period with S swell.
Best Forecast Surf Conditions for Kahalu'u this week:
The surf forecast for Kahalu'u over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 11) at 11PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.5m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kahalu'u in the next 16 days are 1.3m 19s and forecast to arrive on Sunday (Jun 14) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 11th Jun) | 2ft (0.6m) 16s |
| Best Surf | 8PM (Sat 13th Jun) | 3.5ft (1.0m) 21s |
| Most Powerful | 8AM (Sun 14th Jun) | 4.5ft (1.3m) 19s |
Table - best surf conditions forecast for Kahalu'u over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 18mm), heaviest on Thu afternoon. Warm (max 25°C on Thu morning, min 23°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 24°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||
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 18 | S 17 | S 16 | SW 20 | S 15 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | S 17 | S 16 | S 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 98 | 90 | 127 | 107 | 205 | 433 | 622 | 801 | 813 | 1133 | 983 | 1099 | 803 | 763 | 648 | 529 | 425 | 384 | 386 | 743 | 724 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | glassy | on | on | glassy | cross-on | cross | cross-on | on | cross | glassy | on | cross-off | cross-on | on | on | cross | on | on | cross-on |
High Tide | 1:33PM0.79m | 00:45AM0.38m | 2:18PM0.87m | 1:44AM0.34m | 3:04PM0.93m | 2:40AM0.32m | 3:51PM0.96m | 3:34AM0.31m | 4:37PM0.97m | 4:28AM0.31m | 5:23PM0.94m | 5:25AM0.32m | 6:08PM0.89m | ||||||||
Low Tide | 8:29PM0.24m | 6:47AM0.01m | 9:27PM0.19m | 7:31AM-0.02m | 10:19PM0.15m | 8:17AM-0.03m | 11:09PM0.13m | 9:04AM-0.03m | 11:57PM0.12m | 9:52AM-0.01m | 00:43AM0.11m | 10:41AM0.04m | 1:28AM0.11m | ||||||||
 | |  | |  | | | | |  | |  | | | | | |  | | | | |
 | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — |
 | — | 7:01 | — | — | 7:01 | — | — | 7:02 | — | — | 7:02 | — | — | 7:02 | — | — | 7:02 | — | — | 7:04 | — |
mm | 2 | 3 | 5 | 1 | — | 4 | 1 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 27 | 27 | 27 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 17 | S 16 | S 15 | S 15 | SSW 24 | SSW 22 | SSW 21 | SSW 20 | SSW 19 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | S 16 |
| kJ | 98 | 90 | 127 | 107 | 205 | 433 | 622 | 801 | 813 | 1133 | 983 | 1099 | 803 | 763 | 648 | 529 | 425 | 384 | 303 | 743 | 724 |
Swell 2 Height (m) Direction Period (s) | NW 11 | NW 11 | SSW 12 | SW 20 | SW 19 | S 14 | S 13 | S 13 | SW 17 | S 12 | S 12 | S 12 | S 12 | WSW 11 | SW 11 | WNW 11 | S 20 | S 18 | S 17 | NW 10 | NW 10 |
| kJ | 30 | 30 | 56 | 97 | 96 | 63 | 88 | 87 | 137 | 47 | 46 | 25 | 24 | 11 | 18 | 12 | 67 | 155 | 386 | 26 | 26 |
Swell 3 Height (m) Direction Period (s) | S 10 | S 12 | NW 11 | WNW 10 | SSW 26 | SW 19 | SW 18 | SW 18 | S 12 | WSW 12 | SW 12 | WNW 8 | WNW 12 | S 11 | WNW 11 | SW 10 | WNW 11 | NW 11 | NW 10 | SW 18 | SSW 22 |
| kJ | 17 | 26 | 29 | 19 | 131 | 89 | 155 | 108 | 48 | 28 | 22 | 12 | 14 | 21 | 12 | 15 | 12 | 18 | 27 | 12 | 45 |
Wind waves Height (m) Direction Period (s) | — | SW 10 | — | — | — | — | — | — | WNW 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 23 | — | — | — | — | — | — | 16 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 75 | 98 | 0 | 75 | 125 | 0 | 75 | 13 | 6 | 49 | 49 | 0 | 51 | 0 | 6 | 54 | 51 | 13 | 125 | 75 | 13 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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 Kahalu'u 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 Kahalu'u Surf forecast
The above surf forecast table for Kahalu'u provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kahalu'u can be found by selecting the local surf guide option on the grey menu. Our Kahalu'u 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 (Kahalu'u) 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 Kahalu'u 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.
Kahalu'u is 93 km (58 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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