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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 17 Sep 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 0.6m 11s and forecast to arrive on Friday (Sep 19) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Saturday (Sep 20) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Fri 19th Sep) | 2ft (0.6m) 11s |
Table - best surf conditions forecast for Kua Bay over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Wed morning). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Sat night. Warm (max 27°C on Sat morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| 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) (?) | 8 | 8 | 9 | 8 | 8 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 8 | 9 | 4 | 6 | 8 | 5 | 6 | 5 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 5 | 5 | 6 | 20 | 18 | 45 | 60 | 82 | 0 | 48 | 29 | 17 | 7 | 0 | 0 | 1 | 0 | 0 | 14 | 0 | 15 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- off | cross- on | cross | cross | glass | cross- on | cross | glass | cross- on | cross- off | cross- on | cross- off | cross- on | cross- off | cross- off | cross | glass | on | cross | glass |
High Tide / height (m) | 1:25PM 0.75 | 1:54AM 0.41 | 2:04PM 0.75 | 2:30AM 0.48 | 2:38PM 0.74 | 3:03AM 0.55 | 3:08PM 0.70 | 3:35AM 0.61 | 3:35PM 0.66 | 4:06AM 0.66 | 4:01PM 0.60 | 4:38AM 0.69 | 4:26PM 0.54 | ||||||||
Low Tide / height (m) | 8:28PM 0.13 | 7:14AM 0.13 | 8:51PM 0.11 | 8:04AM 0.12 | 9:12PM 0.09 | 8:48AM 0.12 | 9:31PM 0.08 | 9:30AM 0.13 | 9:50PM 0.08 | 10:10AM 0.15 | 10:09PM 0.08 | 10:51AM 0.17 | 10:28PM 0.08 | ||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | |||||||||||||||
| Sunrise | 6:11 | - | - | 6:11 | - | - | 6:11 | - | - | 6:11 | - | - | 6:11 | - | - | 6:11 | - | - | 6:11 | - | - |
| Sunset | - | 6:23 | - | - | 6:23 | - | - | 6:22 | - | - | 6:22 | - | - | 6:21 | - | - | 6:20 | - | - | 6:19 | - |
 | |  | |  | | | | | |  |  | | | | | |  | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 4 | - | 2 | 1 | - | 1 | 1 | - | - | - |
| Temp. °C | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 25 | 26 | 27 | 26 |
| Feels °C (?) | 28 | 28 | 28 | 28 | 28 | 30 | 30 | 31 | 30 | 30 | 30 | 28 | 28 | 29 | 30 | 30 | 28 | 27 | 28 | 30 | 29 |
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Big Island
The wind is still cross-on at Kua Bay (light winds from the WSW at Kailua/Kona Airport 10 km from Kua Bay). No surfable waves
2 h 34 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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