Surf Forecasts:
Kua Bay surf forecast from 16 Jul 2026:
- Best quality surf: Thursday 16 Jul, 8PM (local time) - 2.5ft (0.8m), 14s period, W swell with glassy winds.
- Most powerful swell: Thursday 16 Jul, 11AM (local time) - 2.5ft (0.8m), 15s period, W swell with 275 kJ wave energy.
- Next surfable swell (1★+): Thursday 16 Jul, 8PM (local time) - 2.5ft (0.8m), 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 Thursday (Jul 16) at 8PM. The primary swell is predicted to be 0.8m and 14s period. 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 15s and forecast to arrive on Thursday (Jul 16) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Thursday (Jul 16) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 16th Jul) | 2.5ft (0.8m) 14s |
| Best Surf | 8PM (Thu 16th Jul) | 2.5ft (0.8m) 14s |
| Most Powerful | 11AM (Thu 16th Jul) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Right then, let's have a look at what's on the cards for Kua Bay.
Honestly, it's a tough outlook. We're looking at a long stretch of small, weak swell for most of the 16-day window. There's a real lack of energy pushing in here. The best of what's on offer is a tiny window right at the start, Thursday the 16th. We've got a long-period groundswell from the west at about 3ft, with a period of 15 seconds pushing some energy in (275). The water temp is sitting at 80°, which is pretty much what you'd expect for this time of year. That west swell direction is what we want. But even then, the conditions are only marginal at best. The wind is a light cross-shore, which isn't ideal for keeping it clean.
After that, things drop away fast. From Friday the 17th right through to Tuesday the 22nd, we're looking at tiny, weak swell that's just not going to offer anything worthwhile. The combined energy figures drop right off, going from 203 down to zero. The wind does get clean and offshore at times, like Sunday the 19th morning, but there's simply no swell to push it. You'd be waiting all day for a knee-high ripple.
From Wednesday the 23rd right up to the end of the forecast on the 31st of July, it’s more of the same. There are sporadic, tiny blips of swell – a 2ft pulse from the north-northeast on the 23rd with a terrible 4-second period (13 energy), or a 0.3ft from the southwest on the 24th. None of it has any power or shape.
There is a very slight flicker of life on the 30th of July with a 2ft northerly swell and a moderate period of 8 seconds (78 energy), plus some clean cross-offshore wind. But that's still tiny and way out in the second week, so treat that as a hopeful whisper rather than a guarantee. It's not going to be anything to write home about.
For any surfer, there's nothing to get excited about here. It's a long, flat run, and it looks like the kites might have a more interesting time in this setup than any paddle surfer. Keep an eye on those long-range charts, because it can't stay this quiet forever.
Rusty
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 28°C on Sat morning, min 25°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 27°C on Sun morning, min 25°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||
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 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | W 11 | NE 7 | SSW 26 | NE 7 | SSW 23 | SSW 22 |
Wave Graph  | |||||||||||||||||||||
 kJ | 275 | 272 | 206 | 203 | 146 | 138 | 89 | 87 | 57 | 50 | 29 | 29 | 27 | 13 | 13 | 9 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | glassy | cross-on | cross-on | cross-off | cross-on | cross | cross | cross | cross | off | cross | cross | glassy | cross-off | cross | glassy | cross | glassy | glassy |
High Tide | 5:42PM0.85m | 6:13AM0.45m | 6:17PM0.77m | 7:09AM0.48m | 6:50PM0.67m | 8:11AM0.52m | 7:20PM0.57m | 9:19AM0.56m | 7:48PM0.48m | 10:31AM0.59m | 8:18PM0.40m | 11:39AM0.63m | 9:15PM0.33m | ||||||||
Low Tide | 10:42AM0.06m | 00:39AM0.08m | 11:32AM0.14m | 1:11AM0.09m | 12:27PM0.22m | 1:43AM0.10m | 1:31PM0.30m | 2:14AM0.11m | 2:59PM0.36m | 2:49AM0.12m | 5:16PM0.38m | 3:30AM0.14m | 7:54PM0.33m | 4:20AM0.14m | |||||||
 |  |  | | |  | | |  | | | |  | | | | | | | | | |
 | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — |
 | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | — | 2 | — | — | 1 | — | — | 1 |
Temp °C | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 26 | 27 | 27 | 26 |
Feels °C | 29 | 29 | 29 | 30 | 29 | 31 | 30 | 29 | 30 | 30 | 29 | 30 | 28 | 28 | 29 | 28 | 28 | 29 | 29 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | W 15 | NNE 7 | NNE 7 | NNE 7 | NE 6 | NE 7 | NNE 7 | NE 5 | NNE 7 | NNE 6 | NNE 6 | NNE 8 | NNE 4 | NNE 5 | NE 7 | NNE 7 | NNE 5 | NNE 7 | NE 7 | NE 7 | NE 5 |
| kJ | 275 | 78 | 59 | 59 | 54 | 47 | 61 | 30 | 50 | 54 | 46 | 54 | 8 | 12 | 50 | 32 | 8 | 33 | 43 | 43 | 12 |
Swell 2 Height (m) Direction Period (s) | NNE 7 | W 15 | W 14 | W 14 | W 14 | W 14 | W 13 | NNE 7 | WNW 13 | WNW 12 | WNW 12 | WNW 12 | NNE 7 | NNE 7 | WNW 12 | SSW 12 | NE 7 | SSW 12 | SSW 24 | SSW 23 | SSW 22 |
| kJ | 68 | 272 | 206 | 203 | 146 | 138 | 89 | 19 | 57 | 50 | 29 | 29 | 21 | 21 | 13 | 14 | 17 | 14 | 55 | 106 | 91 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 17 | SW 12 | SSW 16 | NNE 7 | SSW 15 | SW 15 | W 13 | ENE 8 | SW 11 | SW 11 | ENE 7 | WNW 12 | WNW 12 | SSW 13 | W 11 | SSW 12 | SSW 26 | SSW 16 | SSW 18 | SSW 17 |
| kJ | 42 | 75 | 22 | 25 | 18 | 21 | 8 | 87 | 6 | 5 | 5 | 5 | 27 | 13 | 17 | 9 | 13 | 65 | 24 | 30 | 28 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 30 | 0 | 28 | 10 | 0 | 30 | 14 | 30 | 100 | 100 | 26 | 98 | 100 | 14 | 98 | 100 | 19 | 30 | 100 | 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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