Surf Forecasts:
Kua Bay surf forecast from 13 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 11PM (local time) - 2.5ft (0.7m), 17s period, W swell with glassy 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★+): Monday 13 Jul, 8PM (local time) - 1.5ft (0.4m), 19s period with WNW 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 Monday (Jul 13) at 8PM. The primary swell is predicted to be 0.4m and 19s 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 glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Monday (Jul 13) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 13th Jul) | 1.5ft (0.4m) 19s |
| Best Surf | 11PM (Tue 14th Jul) | 2.5ft (0.7m) 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.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer.
To be honest, mate, it's a pretty flat run for the next two weeks. The only window that even looks like a surf comes early on, but it’s a tiny one. After that, we’re staring down a long, dry spell that starts around Wednesday afternoon and just keeps going.
The best – and really the only – chance for a paddle is Monday morning, July 13th. Head to Kua Bay. We’ve got a tiny 1 ft groundswell pushing in from the SW, with a long 15-second period. The water is sitting at 80°, which is about a degree and a half warmer than usual for this time of year, so pretty comfortable. The wind is dead glassy from the NW at 3 mph, which will make the surface clean. The overall energy is weak, right around 104, but it’s surfable. The break is fairly consistent, the direction is matching the optimum WNW, and it's an intermediate-friendly spot. It’s not going to be a world-beater, but it’s the only game in town. Crowds are possible here, so you might have some company.
Monday afternoon drops off fast, and from Tuesday morning onward, it’s all marginal or poor. The swell tries to bump up to 3 ft on Wednesday, but the wind is all over the shop – cross-on, cross-off – and the conditions never come together. By Thursday, we’re back to tiny, weak waves, and from the 21st of July onward, it’s essentially flat with zero energy. A few tiny 0.3 ft pulses pop up around the 24th and 26th, but they’re not worth getting wet for.
If you need a wave, make it Monday morning at Kua Bay. After that, the forecast is a blank wall for the rest of the window.
- Rusty
Short Range ForecastLight rain (total 8mm), mostly falling on Mon morning. Warm (max 27°C on Tue afternoon, min 24°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Fri afternoon, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | SW 15 | W 12 | W 18 | W 19 | 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 | WNW 13 | WNW 12 | WNW 12 | WNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 78 | 26 | 162 | 251 | 267 | 270 | 310 | 302 | 291 | 275 | 272 | 206 | 203 | 146 | 138 | 89 | 87 | 57 | 30 | 29 | 29 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | glassy | on | cross-off | cross-on | cross-on | cross-off | on | cross-on | cross | cross-on | cross | cross-on | glassy | cross-on | cross-on | glassy | glassy | cross | glassy |
High Tide | 3:41PM0.96m | 3:37AM0.34m | 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 | ||||||||
Low Tide | 8:12AM-0.02m | 10:53PM0.10m | 9:03AM-0.02m | 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 | |||||||
 |  |  |  | | | | | | | |  | | | | | |  | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — |
mm | 1 | — | 1 | — | — | 4 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 |
Temp °C | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 27 | 28 | 27 | 27 | 27 | 26 | 27 | 27 | 25 |
Feels °C | 29 | 30 | 28 | 27 | 29 | 27 | 28 | 26 | 28 | 28 | 29 | 27 | 29 | 30 | 30 | 29 | 29 | 30 | 29 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | W 16 | NNE 7 | W 15 | W 15 | NE 7 | NNE 7 | NE 7 | NE 6 | NNE 7 | NE 7 | NNE 7 | NNE 6 | NNE 6 | NE 6 | NNE 6 |
| kJ | 84 | 61 | 41 | 57 | 78 | 64 | 310 | 62 | 291 | 275 | 67 | 61 | 65 | 45 | 62 | 65 | 38 | 41 | 41 | 56 | 33 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | W 18 | W 19 | W 16 | W 17 | NNE 7 | W 15 | NNE 8 | NNE 7 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | ENE 6 | WNW 13 | WNW 12 | WNW 12 | WNW 12 |
| kJ | 78 | 54 | 162 | 251 | 267 | 270 | 47 | 302 | 66 | 70 | 272 | 206 | 203 | 146 | 138 | 89 | 25 | 57 | 30 | 29 | 29 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 14 | SW 16 | SW 13 | SW 13 | SSW 12 | SSW 16 | NNE 8 | SW 10 | SW 9 | W 13 | SW 8 | ENE 7 | NNE 8 | ENE 7 |
| kJ | 26 | 26 | 51 | 47 | 46 | 44 | 43 | 50 | 63 | 26 | 42 | 14 | 25 | 19 | 25 | 21 | 87 | 11 | 5 | 12 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 30 | 0 | 28 | 26 | 17 | 30 | 30 | 10 | 32 | 14 | 17 | 30 | 10 | 0 | 30 | 10 | 4 | 100 | 112 | 14 |
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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