
Surf Forecasts:
Kua Bay surf forecast from 6 Jul 2026:
- Best quality surf: Saturday 11 Jul, 5AM (local time) - 1ft (0.3m), 19s period, SW swell with glassy winds.
- Most powerful swell: Sunday 12 Jul, 5PM (local time) - 1.5ft (0.4m), 16s period, SW swell with 89 kJ wave energy.
- Next surfable swell (1★+): Saturday 11 Jul, 5AM (local time) - 1ft (0.3m), 19s period with SW 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 Saturday (Jul 11) at 5AM. The primary swell is predicted to be 0.3m and 19s period with a secondary swell of 0.3m and 13s. 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 0.4m 16s and forecast to arrive on Sunday (Jul 12) at 5PM. 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 Tuesday (Jul 07) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 11th Jul) | 1ft (0.3m) 19s |
| Best Surf | 5AM (Sat 11th Jul) | 1ft (0.3m) 19s |
| Most Powerful | 5PM (Sun 12th Jul) | 1.5ft (0.4m) 16s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here, let’s get into it. Things are looking a bit quiet around Kua Bay for the next couple of weeks, but there are a few scraps to be had if you’re patient and pick your moments.
Right off the bat, from Monday the 6th through to the morning of Saturday the 11th of July, it’s pretty much flat. We’re talking tiny, weak ripples. The water temp is sitting at 81°, which is a touch warmer than normal for this time of year, so the ocean feels like a warm bath. That’s the only excitement, really.
Now, Saturday the 11th of July afternoon is where we see the first faint pulse. A small 1ft swell from the west with a period of 14 seconds starts to show, and the wind goes glassy. The combined energy is still low at 63, so it’s more about the vibe than the ride. Not really worth paddling out for.
Things get a little more interesting on Sunday the 12th of July afternoon. The swell picks up to 1ft from the southwest, period stretches to 16 seconds, and energy jumps to 117 – a moderate reading. The wind goes glassy again, so it’ll be clean, but the waves are described as surfable with very ordinary conditions. It’s small, but it’s the best-looking window in the first week.
The best of the run looks like it’s shaping up for the week after. Wednesday the 15th of July afternoon, we get a 3ft swell from the west with a period of 16 seconds and solid energy of 347. That’s moderate-strong. The wind is cross-onshore though, which will mess it up. Still, that’s the biggest swell of the forecast. Thursday the 16th morning has 2ft from the west, 15 second period, energy at 327, but again onshore wind. The wave quality is poor or marginal across the board.
For the standout, I’d point you to Wednesday the 15th of July afternoon. It’s not perfect, but that’s the most push we see. The 3ft west swell with a 16 second period has some grunt, and 347 is the highest energy number here. The wind is light cross-onshore, so it won’t be glassy, but it’s the closest we get to a real session.
Honestly, if you’re dreaming of open barrels, you might be more interested in the kite setup during the windier periods mid-week. The surf quality just isn’t there for paddle surfing.
Stay patient, keep an eye on the longer range, and remember – it never stays flat forever.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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) | W 10 | W 10 | W 10 | NNE 8 | NNE 8 | SW 13 | NE 7 | W 16 | W 16 | W 15 | W 14 | W 16 | W 13 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | SW 16 | SW 16 |
Wave Graph | |||||||||||||||||||||
2 | 2 | 2 | 0 | 0 | 7 | 0 | 5 | 5 | 17 | 16 | 20 | 31 | 37 | 32 | 61 | 63 | 55 | 54 | 89 | 86 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | cross-on | glassy | glassy | on | cross | glassy | on | cross | glassy | cross-on | cross | glassy | cross-on | glassy | glassy | cross-on | glassy | cross-on |
High Tide | 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 | 00:33AM0.31m | 2:08PM0.88m | 1:44AM0.30m | 2:56PM0.93m | 2:43AM0.32m | |||||||
Low Tide | 2:03PM0.33m | 3:00AM0.10m | 3:53PM0.37m | 3:41AM0.09m | 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 | ||||||||
5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | |
— | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Temp °C | 27 | 26 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 27 |
Feels °C | 28 | 29 | 27 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | NNE 7 | SSW 15 | NNE 8 | SSW 14 | NNE 7 | NE 7 | NNE 7 | NE 7 | NE 7 | SSW 13 | NNE 7 | NE 7 | NE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 |
82 | 114 | 42 | 117 | 40 | 93 | 75 | 90 | 73 | 71 | 16 | 73 | 71 | 88 | 54 | 108 | 123 | 88 | 113 | 154 | 88 | |
Swell 2 Height (m) Direction Period (s) | W 10 | SSW 15 | W 10 | SSW 14 | — | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | W 14 | SSW 12 | W 13 | W 14 | NE 7 | W 14 | W 14 | SW 17 | SW 16 | SW 16 | SW 16 |
2 | 74 | 2 | 41 | — | 40 | 38 | 37 | 17 | 16 | 16 | 15 | 31 | 37 | 25 | 61 | 63 | 77 | 66 | 89 | 86 | |
Swell 3 Height (m) Direction Period (s) | — | W 10 | — | — | — | SW 13 | — | W 16 | W 16 | W 15 | W 18 | W 16 | SSW 12 | SSW 12 | W 14 | SW 18 | SW 18 | W 13 | W 13 | W 13 | W 12 |
— | 2 | — | — | — | 7 | — | 5 | 5 | 17 | 6 | 20 | 14 | 14 | 32 | 51 | 79 | 55 | 54 | 28 | 26 | |
Wind waves Height (m) Direction Period (s) | NNE 7 | — | NE 7 | — | NNE 8 | — | — | — | — | — | NE 7 | — | — | — | — | — | — | — | — | — | — |
90 | — | 126 | — | 117 | — | — | — | — | — | 109 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 4 | 4 | 100 | 4 | 4 | 100 | 100 | 14 | 100 | 100 | 4 | 100 | 100 | 4 | 30 | 4 | 20 | 30 | 0 | 4 |
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.










