Surf Forecasts:
Kua Bay surf forecast from 9 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 2PM (local time) - 2ft (0.6m), 17s 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★+): Friday 10 Jul, 11PM (local time) - 1.5ft (0.4m), 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 Friday (Jul 10) at 11PM. The primary swell is predicted to be 0.4m and 15s period with a secondary swell of 0.9m and 6s. The wind is predicted to be glassy 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 glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 7s period and expected on Saturday (Jul 11) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 10th Jul) | 1.5ft (0.4m) 15s |
| Best Surf | 2PM (Tue 14th Jul) | 2ft (0.6m) 17s |
| Most Powerful | 8AM (Wed 15th Jul) | 2.5ft (0.8m) 16s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
Alright, this is Rusty. Let's talk about what's on the menu for Kua Bay.
Right off the bat, I gotta be straight with you—this is a slow stretch. The first several days are looking pretty flat, with waves barely tickling the ankle. The water temp is sitting at 81°, which is a touch warmer than usual for this time of year, so at least it’ll be a nice bath.
We’ve got a long gap of nothing much happening until we start seeing some pulse. The first real sign of life comes around Saturday the 11th in the morning. We’re looking at a 1ft swell from the west, with a period of 14 seconds. The combined energy is moderate at 112, but the wind is glassy, so it’ll be clean. Still, it’s tiny. It’s more of a paddle and a tan than a surf.
The real standout, the only one worth getting excited about, is on Thursday the 16th in the afternoon. The wind goes glassy, the swell bumps up to 3ft from the west, with a 16-second period. The combined energy is strong at 356. This is groundswell, and with that long period, it’ll have some punch for its size. It’s a consistent, exposed spot, so the energy will find its way in. Kua Bay is a beach break, so with a long period like that, it might be a bit straight, but with glassy conditions, it’s your best chance at a wave. It’s small enough for intermediates, and the crowds are sometimes there, so you might have some company.
After that, the energy fades out again. The following week drops back into the doldrums, with nothing substantial to report. It’s a one-shot window.
So, to sum it up: the whole 16 days is a waiting game. The only real highlight is that Thursday afternoon session on the 16th. If you’re itching for a wave, that’s your window. Otherwise, it’s a quiet stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Thu morning, min 25°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 27°C on Sat afternoon, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wed 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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 16 | W 15 | W 14 | W 16 | W 13 | W 14 | W 14 | W 14 | W 14 | W 13 | SW 16 | SW 16 | SW 16 | SW 15 | W 12 | W 18 | W 19 | W 16 | W 17 | W 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 5 | 17 | 16 | 20 | 31 | 37 | 32 | 61 | 64 | 55 | 91 | 89 | 86 | 78 | 27 | 162 | 251 | 198 | 280 | 314 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | cross-off | glassy | cross | glassy | glassy | glassy | cross-on | glassy | cross | cross-on | cross-on | cross | glassy | cross-on | cross-on | cross-off | glassy | cross-on |
High Tide | 9:39PM0.40m | 12:22PM0.73m | 11:07PM0.34m | 1:17PM0.81m | 00:33AM0.31m | 2:08PM0.88m | 1:44AM0.30m | 2:56PM0.93m | 2:43AM0.32m | 3:41PM0.96m | 3:37AM0.34m | 4:24PM0.95m | 4:28AM0.37m | ||||||||
Low Tide | 6:03PM0.35m | 4:30AM0.07m | 7:43PM0.29m | 5:25AM0.05m | 8:45PM0.22m | 6:22AM0.02m | 9:33PM0.17m | 7:18AM-0.00m | 10:14PM0.13m | 8:12AM-0.02m | 10:53PM0.10m | 9:03AM-0.02m | 11:30PM0.09m | 9:53AM0.01m | |||||||
 |  | |  | | | |  | | | | |  | | | | | | |  | | |
 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 |
 | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | 7:06 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 1 | — | — | — | 2 | — |
Temp °C | 27 | 26 | 28 | 28 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 25 | 27 |
Feels °C | 29 | 29 | 30 | 30 | 29 | 29 | 29 | 29 | 30 | 30 | 29 | 30 | 28 | 28 | 28 | 28 | 29 | 29 | 28 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | NE 7 | NNE 8 | NE 7 | NE 7 | NE 7 | NNE 6 | NE 6 | NNE 6 | W 14 | NNE 7 | NNE 7 | SW 16 | NNE 7 | SW 16 | NNE 8 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NE 7 |
| kJ | 102 | 98 | 77 | 96 | 91 | 29 | 88 | 47 | 61 | 99 | 96 | 91 | 124 | 86 | 107 | 88 | 75 | 59 | 76 | 90 | 55 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | NE 7 | W 14 | W 14 | SW 18 | W 14 | SW 17 | W 13 | SW 16 | W 12 | SW 15 | SW 14 | W 18 | W 19 | W 16 | W 17 | W 16 |
| kJ | 37 | 35 | 16 | 16 | 15 | 37 | 37 | 32 | 51 | 64 | 77 | 30 | 89 | 26 | 78 | 54 | 162 | 251 | 198 | 280 | 314 |
Swell 3 Height (m) Direction Period (s) | W 16 | W 16 | W 15 | W 14 | W 16 | W 13 | SSW 12 | NNE 8 | S 12 | SW 18 | W 13 | S 10 | W 13 | W 21 | W 12 | W 12 | SW 14 | SW 14 | SW 13 | SW 13 | N 7 |
| kJ | 5 | 5 | 17 | 16 | 20 | 31 | 14 | 11 | 3 | 79 | 55 | 2 | 28 | 9 | 27 | 27 | 51 | 47 | 46 | 44 | 27 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 7 | — | — | NNE 7 | — | NNE 8 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 134 | — | — | 111 | — | 123 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 4 | 100 | 39 | 4 | 100 | 4 | 4 | 0 | 20 | 4 | 30 | 32 | 10 | 10 | 4 | 4 | 4 | 0 | 0 | 28 |
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