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Kua Bay Surf Forecast
/ HAW – Big Island (60 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Kua Bay surfForecast / HAW – Big Island / USA
12 Day Weather and Surf, issued 7 am Wednesday 20 Aug 2025 HST
Best Forecast Surf Conditions for Kua Bay this week:
The most powerful waves expected at Kua Bay in the next 12 days are 0.7m 6s and forecast to arrive on Sunday (Aug 24) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 6s period and expected on Wednesday (Aug 20) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 24th Aug) | 2.5ft (0.7m) 6s |
Table - best surf conditions forecast for Kua Bay over the next 12 days.
Short Range Forecast Some drizzle, heaviest during Fri night. Warm (max 28°C on Wed morning, min 25°C on Wed night). Wind will be generally light. | Days 3-6 Weather Summary Some drizzle, heaviest during Sun night. Warm (max 27°C on Sat morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 6 | 9 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 8 | 8 | 15 | 15 | 19 | 10 | 9 | 9 | 9 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 0 | 2 | 9 | 18 | 17 | 31 | 30 | 29 | 14 | 13 | 12 | 5 | 5 | 5 | 9 | 9 | 16 | 13 | 7 | 14 | 13 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- off | cross | cross | glass | cross | cross | glass | cross | cross- on | glass | cross | cross | cross | cross- on | cross- off | cross- on | cross | cross- on | glass |
High Tide / height (m) | 2:31PM 0.84 | 2:38AM 0.38 | 3:09PM 0.84 | 3:18AM 0.43 | 3:42PM 0.82 | 3:55AM 0.48 | 4:12PM 0.78 | 4:32AM 0.53 | 4:40PM 0.73 | 5:08AM 0.57 | 5:05PM 0.66 | 5:45AM 0.59 | 5:28PM 0.59 | ||||||||
Low Tide / height (m) | 9:36PM 0.12 | 8:03AM 0.06 | 10:02PM 0.11 | 8:49AM 0.06 | 10:25PM 0.10 | 9:32AM 0.08 | 10:48PM 0.09 | 10:13AM 0.11 | 11:09PM 0.09 | 10:54AM 0.16 | 11:30PM 0.10 | 11:37AM 0.21 | 11:50PM 0.11 | ||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||
| Sunrise | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:05 | - | - | 6:07 | - | - |
| Sunset | - | 6:49 | - | - | 6:47 | - | - | 6:46 | - | - | 6:45 | - | - | 6:45 | - | - | 6:45 | - | - | 6:44 | - |
 | |  | | | | |  |  |  | | | | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - |
| Temp. °C | 28 | 27 | 26 | 27 | 27 | 26 | 26 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 27 | 26 |
| Feels °C (?) | 30 | 29 | 29 | 29 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 28 | 28 | 28 | 27 | 28 | 28 | 29 | 29 | 29 | 29 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Big Island
Calm condsitions have become offshore at Kua Bay (light winds from the SSE at Kailua/Kona Airport 10 km from Kua Bay). No surfable waves
1 h 48 min ago
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 Kua Bay 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 Kua Bay Surf forecast
The above surf forecast table for Kua Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kua Bay can be found by selecting the local surf guide option on the grey menu. Our Kua Bay 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 (Kua Bay) 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 Kua Bay 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.
Kua Bay is 97 km (60 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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