
Surf Forecasts:
Kua Bay surf forecast from 4 Jul 2026:
- Best quality surf: Friday 10 Jul, 8PM (local time) - 1.5ft (0.4m), 14s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 10 Jul, 5PM (local time) - 1.5ft (0.4m), 14s period, W swell with 66 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 8PM (local time) - 1.5ft (0.4m), 14s 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 8PM. The primary swell is predicted to be 0.4m and 14s 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 0.4m 14s and forecast to arrive on Friday (Jul 10) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Monday (Jul 06) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 10th Jul) | 1.5ft (0.4m) 14s |
| Best Surf | 8PM (Fri 10th Jul) | 1.5ft (0.4m) 14s |
| Most Powerful | 5PM (Fri 10th Jul) | 1.5ft (0.4m) 14s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here, looking at the Kua Bay stretch for the next couple of weeks.
Right off the bat, it’s a slow starter. From Saturday, July 4th all the way through to Monday, July 13th, it’s mostly flat or close to it. Barely a ripple. The swell is tiny, the energy is nothing – numbers like 38 or even zero for the combined energy. Not worth wetting a wetsuit for.
There’s a very small bump on Sunday the 12th late in the day, but it’s still ordinary. The real story begins to build on Tuesday, July 14th.
The standout window is Thursday, July 16th. The best session of the outlook is the Thursday afternoon at Kua Bay. Swell size is a little over 3 feet, coming from the WNW at 15 seconds – a nice, long period groundswell with proper energy. The combined energy is moderate at 284, but the big win is the wind: completely glassy. Calm, zero wind. That’s a major positive for clean waves. Water temp is about average for this time of year, nothing out of the ordinary. Crowds can be ‘sometimes’, so you might have a few out, but for quality like that, it’s fine.
It’s a beach break, and with that long period (15 seconds), it might line up a bit straight, but with those glassy conditions, it’ll be a blast. Intermediates will have a good time here.
Wednesday the 15th also has swell – about 3 feet from the WNW at 16 seconds – with energy hitting 416. The cross-onshore wind on Wednesday morning will mess with the surface a bit, but it’s still rideable. Still, Thursday afternoon glass-off is the obvious pick.
After that, the swell fades through the weekend and into the next week. By Saturday the 18th and Sunday the 19th, it’s back to small, weak waves with poor conditions.
So, lay low before July 14th. Mark Thursday, July 16th afternoon – that’s your clean, glassy window on a long period swell. It’s not huge, but it’s the best we’ve got.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 27°C on Sat morning, min 25°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Fri 10 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | WNW 12 | SW 16 | SW 15 | WNW 12 | NNE 8 | NW 11 | NW 11 | W 10 | W 10 | W 10 | NNE 7 | NE 7 | SW 13 | NE 7 | W 17 | W 16 | W 15 | W 14 | W 14 | W 13 | W 14 |
Wave Graph | |||||||||||||||||||||
15 | 38 | 36 | 14 | 0 | 5 | 5 | 2 | 2 | 2 | 0 | 0 | 7 | 0 | 6 | 5 | 17 | 16 | 32 | 32 | 66 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | glassy | cross | on | glassy | cross | on | glassy | cross | glassy | glassy | glassy | on | cross-off | glassy | cross-on | glassy | glassy | on | cross-off |
High Tide | 6:52AM0.39m | 6:46PM0.71m | 7:53AM0.43m | 7:17PM0.64m | 9:01AM0.49m | 7:52PM0.57m | 10:13AM0.56m | 8:37PM0.48m | 11:22AM0.64m | 9:39PM0.40m | 12:22PM0.73m | 11:07PM0.34m | 1:17PM0.81m | ||||||||
Low Tide | 1:24AM0.14m | 11:51AM0.20m | 1:54AM0.13m | 12:46PM0.27m | 2:25AM0.12m | 2:03PM0.33m | 3:00AM0.10m | 3:53PM0.37m | 3:41AM0.09m | 6:03PM0.35m | 4:30AM0.07m | 7:43PM0.29m | 5:25AM0.05m | ||||||||
— | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | |
7:07 | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 2 | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 27 |
Feels °C | 30 | 29 | 29 | 29 | 28 | 29 | 27 | 29 | 30 | 27 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 29 | 30 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 8 | NNE 8 | NNE 8 | SSW 18 | NNE 8 | SSW 17 | NNE 7 | SSW 16 | NNE 7 | SSW 15 | NNE 7 | SSW 14 | NNE 7 | NE 7 | NE 7 | NNE 7 | NE 7 | NNE 7 | NNE 7 | NE 7 | NE 7 |
117 | 106 | 109 | 65 | 76 | 58 | 70 | 82 | 114 | 42 | 96 | 40 | 68 | 93 | 88 | 59 | 69 | 83 | 61 | 65 | 91 | |
Swell 2 Height (m) Direction Period (s) | WNW 12 | SW 16 | SSW 20 | SSW 15 | SSW 18 | SSW 14 | SSW 16 | W 10 | SSW 15 | W 10 | SSW 14 | — | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | W 14 | W 13 | W 14 |
15 | 38 | 75 | 21 | 61 | 20 | 86 | 2 | 74 | 2 | 41 | — | 41 | 38 | 37 | 17 | 16 | 16 | 32 | 32 | 66 | |
Swell 3 Height (m) Direction Period (s) | SSW 21 | SSW 21 | SW 15 | WNW 12 | SSW 14 | NW 11 | NW 11 | — | W 10 | — | — | — | SW 13 | — | W 17 | W 16 | W 15 | W 14 | SSW 12 | W 16 | S 12 |
45 | 85 | 36 | 14 | 20 | 5 | 5 | — | 2 | — | — | — | 7 | — | 6 | 5 | 17 | 16 | 15 | 21 | 11 | |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 8 | — | NNE 7 | — | NNE 7 | — | NE 7 | — | NE 7 | — | — | — | — | — | — | — | — | — |
— | — | — | 88 | — | 93 | — | 93 | — | 107 | — | 122 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 100 | 4 | 4 | 4 | 4 | 14 | 103 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 14 | 100 | 4 | 14 | 100 | 22 |
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.











