Surf Forecasts:
Kua Bay surf forecast from 15 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 8PM (local time) - 2.5ft (0.7m), 16s 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★+): Tuesday 14 Jul, 8PM (local time) - 2.5ft (0.7m), 16s 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 Tuesday (Jul 14) at 8PM. The primary swell is predicted to be 0.7m and 16s 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 cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 7s period and expected on Thursday (Jul 16) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 14th Jul) | 2.5ft (0.7m) 16s |
| Best Surf | 8PM (Tue 14th Jul) | 2.5ft (0.7m) 16s |
| 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 break down what’s heading for Kua Bay over the next couple of weeks.
Right off the bat, I gotta be straight with you – the surf window is pretty much shut for most of this outlook. The first real chance of anything even worth paddling out for is a tiny blip on Tuesday afternoon, July 14th. The rest of the 16-day run is a long, flat stretch of poor conditions, so don't get your hopes up.
We kick off with a little pulse on Tuesday, July 14th. Kua Bay is seeing a clean 2ft west swell with a long 16-second period. The combined energy is moderate at 267. The water is sitting at 80°, which is about a degree and a half warmer than average for this time of year, so it’s a touch toastier than usual. The wind is a cross-offshore from the SSW at 9 mph, keeping things tidy. This is a pretty marginal call, though, with some tide concerns, and the break is fairly consistent but it can get crowded sometimes. It’s a session for the patient intermediate.
After that little tease, the outlook goes pretty grim. Wednesday the 15th has a morning of onshore wind, but the afternoon cleans up with a cross-off again and a similar 3ft west swell. The energy is up to 310, and the score is better, but it’s still a quiet wave. Through Thursday, Friday, and into the weekend, the swell just fades away. By Saturday the 18th, we’re down to 2ft and the combined energy has dropped to 89 – that’s weak. The wind turns mostly cross or cross-on, making it bumpy and uninviting.
The following week is a total write-off. From Sunday the 19th all the way through to Wednesday the 29th of July, the forecast is littered with "poor surf conditions" and combined energy values barely hitting double digits. There’s a morning of glassy conditions on Sunday the 19th, but with only 1ft of swell and 50 energy, it’s a non-event. Even a late pulse on the 27th and 28th with 2ft west swell barely tickles the energy meter at 62. It’s just not happening.
Honestly, the only window worth mentioning is the Tuesday afternoon glass-off. If you’re jonesing for a wave, that’s your one shot. Otherwise, it’s a blank run for the books. The forecast can change, but for now, it’s looking like a time to clean the wax off your board.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Tue night. Warm (max 27°C on Thu morning, min 24°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tue 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | W 16 | W 17 | 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 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 267 | 270 | 310 | 302 | 287 | 275 | 272 | 206 | 203 | 146 | 138 | 89 | 87 | 87 | 50 | 29 | 29 | 27 | 26 | 13 | 9 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | on | cross-off | cross-on | cross | cross-on | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | glassy | cross | glassy | cross-on | cross | glassy | on |
High Tide | 4:24PM0.95m | 4:28AM0.37m | 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 | |||||||
Low Tide | 11:30PM0.09m | 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 | ||||||||
 |  | |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 |
 | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | 7:05 |
mm | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 27 | 25 | 26 | 27 | 26 | 27 |
Feels °C | 27 | 26 | 27 | 27 | 27 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 28 | 28 | 29 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 8 | W 16 | NNE 7 | W 15 | W 15 | NNE 7 | W 14 | W 14 | W 14 | NNE 7 | NE 6 | NE 6 | NNE 8 | NNE 5 | NNE 6 | NE 6 | NNE 7 | NE 7 | NNE 7 | NE 7 |
| kJ | 62 | 64 | 310 | 83 | 287 | 275 | 93 | 206 | 203 | 146 | 41 | 18 | 31 | 74 | 17 | 52 | 42 | 44 | 46 | 32 | 37 |
Swell 2 Height (m) Direction Period (s) | W 16 | W 17 | NNE 7 | W 15 | NNE 7 | NNE 7 | W 15 | NNE 7 | NNE 7 | SSW 11 | W 14 | W 13 | N 7 | W 13 | NE 7 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | SSW 12 |
| kJ | 267 | 270 | 48 | 302 | 62 | 68 | 272 | 42 | 26 | 12 | 138 | 89 | 26 | 87 | 24 | 29 | 29 | 27 | 26 | 13 | 14 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | SW 13 | SW 17 | SW 14 | NE 5 | SSW 16 | SSW 15 | N 7 | W 13 | SSW 12 | WNW 12 | SW 11 | SSW 12 | SSW 11 | SW 18 | SSW 11 | W 11 |
| kJ | 46 | 44 | 43 | 49 | 63 | 26 | 75 | 52 | 10 | 25 | 21 | 24 | 87 | 15 | 50 | 5 | 13 | 12 | 12 | 12 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNE 7 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 59 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 25 | 14 | 30 | 0 | 20 | 30 | 28 | 0 | 30 | 10 | 10 | 25 | 10 | 4 | 100 | 100 | 19 | 98 | 22 | 19 | 98 |
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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