Surf Forecasts:
Kua Bay surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 5PM (local time) - 2.5ft (0.8m), 15s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 15 Jul, 8AM (local time) - 2.5ft (0.8m), 16s period, W swell with 314 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 5PM (local time) - 2.5ft (0.8m), 15s period with W swell.
Best Forecast Surf Conditions for Kua Bay this week:
The surf forecast for Kua Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 15) at 5PM. The primary swell is predicted to be 0.8m and 15s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kua Bay in the next 16 days are 0.8m 16s and forecast to arrive on Wednesday (Jul 15) at 8AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Thursday (Jul 16) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Wed 15th Jul) | 2.5ft (0.8m) 15s |
| Best Surf | 5PM (Wed 15th Jul) | 2.5ft (0.8m) 15s |
| Most Powerful | 8AM (Wed 15th Jul) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s cookin’ at Kua Bay over the next couple weeks. This spot on the Big Island is usually fairly consistent, but this forecast is a real letdown – there’s only one little window that’s worth paddlin’ out for.
It kicks off Wednesday July 15. The morning is a dud, but the afternoon pulls through. We’ve got a clean 3ft west swell rolling in with a long 15-second period, a gentle cross-off breeze from the SSW at 9 mph, and the water’s sitting at 80°F – about average for this time of year. Combined energy comes in at 302, which is moderate. That session is the clear standout: waist-high sets, glassy faces, and the direction matches the open WNW exposure. Crowds are possible, but with conditions this limited, it’ll be a quiet crew.
After that, it falls apart. Thursday through the weekend the swell drops to 2–2ft, winds turn cross-on, and the quality goes marginal. By Monday July 21 the surf flatlines. From there, it’s a long dry spell – barely a ripple until the tail end of the month. A few tiny pulses show up around July 26–28, but nothing that’ll get you out of bed.
So if you’re keen, your only real shot is Wednesday afternoon July 15. It’s not a world-beater, but in a two-week block this quiet, that arvo window is the one to chase.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu morning, min 25°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sat night. Warm (max 27°C on Sat morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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) | W 16 | W 15 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NE 7 | NE 7 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 310 | 302 | 287 | 275 | 272 | 206 | 203 | 146 | 138 | 89 | 87 | 87 | 50 | 29 | 29 | 27 | 26 | 26 | 0 | 0 | 9 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | on | cross-on | cross-on | glassy | cross-on | cross-on | glassy | cross-on | cross | glassy | on | cross-off | cross-on | cross-on | cross-off | cross-on | on | cross-off | cross-on |
High Tide | 5:04PM0.91m | 5:19AM0.41m | 5:42PM0.85m | 6:13AM0.45m | 6:17PM0.77m | 7:09AM0.48m | 6:50PM0.67m | 8:11AM0.52m | 7:20PM0.57m | 9:19AM0.56m | 7:48PM0.48m | 10:31AM0.59m | 8:18PM0.40m | ||||||||
Low Tide | 9:53AM0.01m | 00:05AM0.08m | 10:42AM0.06m | 00:39AM0.08m | 11:32AM0.14m | 1:11AM0.09m | 12:27PM0.22m | 1:43AM0.10m | 1:31PM0.30m | 2:14AM0.11m | 2:59PM0.36m | 2:49AM0.12m | 5:16PM0.38m | 3:30AM0.14m | |||||||
 |  |  | | | | | |  | | |  | | | | | | | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 4 | — | — | 2 | — | — | 1 |
Temp °C | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 25 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 29 | 29 | 28 | 29 | 29 | 28 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | W 16 | W 15 | W 15 | NNE 7 | W 15 | W 14 | NE 7 | NNE 7 | NNE 7 | NE 7 | NE 6 | NNE 7 | NE 7 | NNE 6 | NNE 8 | NNE 8 | NNE 5 | NNE 7 | NE 4 | NE 5 | NE 7 |
| kJ | 310 | 302 | 287 | 66 | 272 | 206 | 47 | 59 | 41 | 46 | 35 | 59 | 50 | 54 | 50 | 40 | 8 | 34 | 10 | 11 | 44 |
Swell 2 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | W 15 | NE 6 | NNE 7 | W 14 | W 14 | W 14 | W 13 | W 13 | W 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | NNE 7 | WNW 12 | NE 7 | NE 7 | SSW 12 |
| kJ | 48 | 64 | 62 | 275 | 39 | 42 | 203 | 146 | 138 | 89 | 87 | 87 | 50 | 29 | 29 | 27 | 21 | 26 | 12 | 22 | 14 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 14 | SW 16 | SW 13 | NNE 7 | SW 12 | SSW 12 | SSW 12 | SSW 15 | SW 15 | NNE 7 | ENE 8 | SSW 11 | SW 11 | SSW 12 | SSW 11 | WNW 12 | SSW 11 | SSW 12 | SSW 12 | SW 15 |
| kJ | 43 | 49 | 63 | 42 | 30 | 22 | 13 | 13 | 21 | 8 | 16 | 6 | 12 | 5 | 13 | 11 | 26 | 12 | 14 | 14 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 32 | 0 | 14 | 30 | 10 | 0 | 28 | 10 | 0 | 30 | 21 | 0 | 100 | 39 | 92 | 98 | 26 | 20 | 98 | 39 | 20 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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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