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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
16 Day Weather and Surf, issued 1 am Wednesday 13 May 2026 HSTForecast update in hr min s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua Bay sea temperature is
25.8° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Kua Bay this week:
The most powerful waves expected at Kua Bay in the next 16 days are 0.3m 19s and forecast to arrive on Monday (May 18) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Wednesday (May 13) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Mon 18th May) | 1ft (0.3m) 19s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 26°C on Wed morning, min 24°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sun afternoon. Warm (max 28°C on Sun afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
N 12 | N 10 | N 9 | N 9 | N 8 | NNE 7 | NW 13 | SW 16 | NW 12 | SW 15 | SW 14 | NE 8 | SW 14 | SW 14 | SW 14 | NE 6 | NNE 6 | NNE 6 | NE 6 | NE 6 | SSW 14 | |
11 | 8 | 6 | 13 | 13 | 0 | 27 | 40 | 23 | 33 | 33 | 0 | 33 | 32 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | glassy | glassy | cross-on | cross-off | on | cross | cross | glassy | cross-on | cross | cross-on | cross-on | on | cross-off | cross-on | cross-on | glassy | cross-on | glassy | cross | |
High Tide | 1:59PM0.73m | 1:26AM0.50m | 2:38PM0.82m | 2:12AM0.45m | 3:19PM0.90m | 2:58AM0.40m | 4:02PM0.94m | 3:44AM0.36m | 4:48PM0.95m | 4:33AM0.32m | 5:37PM0.93m | 5:26AM0.30m | 6:28PM0.88m | ||||||||
Low Tide | 8:19PM0.22m | 7:34AM0.01m | 9:17PM0.18m | 8:07AM-0.01m | 10:12PM0.15m | 8:43AM-0.03m | 11:07PM0.14m | 9:22AM-0.03m | 00:03AM0.13m | 10:03AM-0.01m | 1:02AM0.14m | 10:48AM0.03m | 2:03AM0.14m | ||||||||
 |  |  | | |  | |  | | | | | |  | | | |  | | | | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — | — |
 | — | 6:51 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:53 | — |
— | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | 2 | 1 | — | — | — | |
Temp °C | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 28 | 27 | 26 | 26 | 25 | 26 | 26 | 26 |
28 | 29 | 27 | 27 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 27 | 29 | 30 | 30 | 30 | 28 | 29 | 29 | 29 | 29 | |
Swell 1 Height (m) Direction Period (s) | NNE 6 | NE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NE 7 | NE 7 | NE 7 | NE 7 | NE 8 | NE 8 | NE 8 | NNE 5 | NE 6 | NNE 6 | NNE 6 | NE 6 | NE 6 | NNE 6 |
 kJ | 26 | 56 | 33 | 56 | 51 | 30 | 31 | 55 | 57 | 35 | 79 | 49 | 42 | 78 | 18 | 31 | 63 | 27 | 36 | 47 | 27 |
Swell 2 Height (m) Direction Period (s) | ENE 6 | N 10 | ENE 7 | ENE 7 | ENE 7 | NNE 8 | NW 13 | NW 12 | NW 12 | ENE 8 | SW 14 | SSW 14 | SW 14 | SW 14 | NE 8 | SSW 19 | SSW 16 | ENE 8 | SSW 14 | SSW 14 | NE 7 |
| kJ | 15 | 8 | 5 | 9 | 19 | 14 | 27 | 25 | 23 | 13 | 33 | 20 | 33 | 32 | 21 | 37 | 24 | 6 | 19 | 20 | 8 |
Swell 3 Height (m) Direction Period (s) | N 12 | SW 15 | N 9 | N 9 | N 8 | ENE 8 | SSW 16 | SW 16 | SSW 13 | SW 15 | NW 11 | SSW 17 | SSW 16 | SSW 21 | SW 14 | SSW 13 | SSW 13 | SSW 16 | SSW 18 | S 17 | SSW 14 |
| kJ | 11 | 8 | 6 | 13 | 13 | 11 | 25 | 40 | 18 | 33 | 5 | 28 | 24 | 45 | 30 | 17 | 18 | 25 | 31 | 24 | 41 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 14 | 14 | 97 | 26 | 20 | 101 | 97 | 4 | 100 | 100 | 20 | 97 | 30 | 26 | 100 | 101 | 14 | 100 | 14 | 20 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 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 16 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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