Surf Forecasts:
Kua Bay surf forecast from 25 Jul 2026:
- Most powerful swell: Friday 31 Jul, 11PM (local time) - 3ft (0.9m), 6s period, NE swell with 52 kJ wave energy.
Best Forecast Surf Conditions for Kua Bay this week:
The most powerful waves expected at Kua Bay in the next 16 days are 0.9m 6s and forecast to arrive on Friday (Jul 31) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 12s period and expected on Tuesday (Jul 28) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Fri 31st Jul) | 3ft (0.9m) 6s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Alright folks, it’s Rusty here. Let’s be straight with you – this outlook for Kua Bay is a tough one. We’re lookin’ at a solid 16-day window, but the honest truth is, there’s not a single session that’s gonna get the blood pumping. The whole run is a bust for surfable waves. It’s a blank stretch, and for this spot, that’s just how it goes sometimes.
We start off with a few days of absolutely nothing – zero energy. Saturday the 25th through Monday the 27th of July, the ocean is flat as a pancake. The wind is glassy or light offshore on the Saturday morning, which would be perfect if there was any swell to work with. Painful, I know.
We get a tiny blip of life on the 29th of July, Wednesday afternoon. A tiny 1ft swell from the SW, but it’s got a short, weak period of 5 seconds and the combined energy is a measly (9). The wind is a cross-onshore mess at 12 mph, so it’s just choppy, poor conditions. Not worth paddling out for.
The pattern continues. A few little pulses of SW energy show up at the end of July and into August, but they’re all tiny. On Friday the 31st of July, we get a little 1.0ft swell from the SW, but it’s got a long period of 15 seconds, which is a groundswell. The combined energy is still weak (50). The wind goes glassy in the afternoon, so the surface will be clean, but the swell is just too small to break properly at Kua Bay for surfing. It’s a tease.
The first week of August is more of the same. Tiny waves from the W and WNW, with periods all over the place. The combined energy stays in the weak two-digit range. The best wind we see is a few clean, cross-offshore afternoons on the 4th and 5th of August, but with wave heights hitting only 0.7ft and 1.0ft, it’s just not going to happen. Even the little 1ft swell that pops up on the 6th and 7th of August is too weak, with the combined energy only reaching (63) at best.
The forecast wraps up on the 9th of August with a little 1ft groundswell (11-second period) from the W, but with a cross-onshore wind, it’s just another day of poor surf. The water temp is about average for the time of year, so no surprises there.
So, there you have it. No standouts, no go days. The ocean is just taking a long nap out there. For a wave count, this is a complete zero. Sometimes the forecast is just a blank page, and we gotta wait for the next one. Keep your eyes on the horizon, but don’t rush to wax your board.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 29°C on Tue morning, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||
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) | SSW 20 | NE 8 | NNE 8 | SW 14 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | ENE 13 | ENE 13 | NE 10 | NNE 8 | SW 5 | SW 4 | NE 7 | SW 18 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 1 | 0 | 49 | 42 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | on | cross | cross | on | cross-on | glassy | cross-on | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | off |
High Tide | 00:50AM0.29m | 2:06PM0.75m | 1:45AM0.30m | 2:43PM0.78m | 2:27AM0.32m | 3:16PM0.81m | 3:05AM0.34m | 3:48PM0.82m | 3:41AM0.37m | 4:17PM0.82m | 4:18AM0.40m | 4:45PM0.81m | 4:57AM0.44m | ||||||
Low Tide | 9:10PM0.23m | 6:17AM0.12m | 9:35PM0.20m | 7:07AM0.10m | 9:59PM0.18m | 7:51AM0.07m | 10:24PM0.16m | 8:31AM0.06m | 10:48PM0.14m | 9:09AM0.06m | 11:12PM0.13m | 9:46AM0.07m | 11:35PM0.12m | ||||||
 |  |  | | | | | | | | | | | |  |  | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — |
 | 7:04 | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — |
Temp °C | 26 | 27 | 27 | 27 | 27 | 27 | 26 | 27 | 28 | 26 | 29 | 29 | 27 | 27 | 28 | 26 | 28 | 28 | 26 |
Feels °C | 28 | 30 | 30 | 29 | 29 | 30 | 30 | 28 | 30 | 29 | 30 | 29 | 32 | 30 | 31 | 29 | 31 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 10 | NNE 8 | ENE 13 | ENE 13 | NE 10 | NNE 8 | NNE 8 | NE 8 | NE 7 | NE 7 | NE 6 |
| kJ | 70 | 133 | 162 | 126 | 116 | 120 | 91 | 93 | 27 | 98 | 187 | 421 | 420 | 90 | 48 | 96 | 67 | 112 | 70 |
Swell 2 Height (m) Direction Period (s) | SSW 20 | SSW 16 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | ENE 13 | ENE 13 | SSW 14 | SSW 14 | SSW 14 | ENE 10 | NE 8 | SSW 13 | SSW 18 | SW 18 | SW 16 |
| kJ | 76 | 51 | 102 | 60 | 86 | 84 | 48 | 42 | 34 | 59 | 37 | 39 | 37 | 36 | 35 | 31 | 31 | 49 | 42 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | SSW 20 | S 11 | SW 14 | E 14 | E 15 | E 14 | E 13 | SSW 14 | SSW 14 | — | — | — | SSW 14 | SW 5 | SW 4 | SSW 12 | SSW 12 | SSW 12 |
| kJ | 25 | 37 | 2 | 8 | 16 | 17 | 16 | 31 | 41 | 41 | — | — | — | 36 | 9 | 1 | 14 | 14 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 8 | — | NNE 9 | NNE 8 | — | SW 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 110 | — | 165 | 134 | — | 4 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 4 | 4 | 4 | 4 | 100 | 100 | 4 | 98 | 14 | 4 | 20 | 20 | 26 | 51 | 51 | 4 | 98 | 112 | 4 |
Best forecast wave conditions in Big Island | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
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.
Nearest