Surf Forecasts:
Kua Bay surf forecast from 27 Aug 2026:
- Most powerful swell: Sunday 30 Aug, 2AM (local time) - 1ft (0.3m), 17s period, SW swell with 44 kJ wave energy.
Best Forecast Surf Conditions for Kua Bay this week:
The most powerful waves expected at Kua Bay in the next 16 days are 0.3m 17s and forecast to arrive on Sunday (Aug 30) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Tuesday (Sep 01) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 30th Aug) | 1ft (0.3m) 17s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's get stuck into what's shaping up for the next couple of weeks.
Right off the bat, I gotta be straight with you: it's looking bleak. The surf forecast for the entire 16-day window is a real stinker. We've got a solid block of time here with no real surf on offer. From now, right through to the 11th of September, every single report is coming up with "poor surf conditions." That's a long, flat stretch.
The first and only break on the cards is Kua Bay. The water temp is sitting at 82°, which is a touch warmer than we'd normally see this time of year, but honestly, you won't be worrying about that because you won't be surfing.
We’re talking tiny dribbles of swell all period. Most of the time the combined energy is a measly zero, and even the best of it is pathetic. For instance, on Thursday the 10th of September morning, we might see a weak 1 ft swell from the SW with a period of 16 seconds and a combined energy of 51 (moderate energy). But that's still "poor surf conditions." The wind is generally light and variable, but it doesn't matter because there's no power behind it.
There's nothing here that's any good. The setup might look more interesting for kite surfing than paddle surfing given the significant lack of swell, but for us surfers, this is a total write-off. Don't bother paddling out; it's going to be a flat, frustrating wait. The forecasts can always change, but as it stands, this is a dry spell.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 28°C on Thu morning, min 25°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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) | SSW 16 | N 8 | N 7 | NNE 5 | NNE 5 | W 10 | SW 18 | NNE 6 | SW 17 | NNE 7 | NNE 7 | SW 15 | SW 15 | W 12 | SW 14 | NNE 8 | NE 8 | W 11 | W 12 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 5 | 4 | 17 | 0 | 8 | 12 | 0 | 44 | 0 | 0 | 36 | 33 | 11 | 33 | 0 | 0 | 10 | 11 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | glassy | cross | cross | cross-on | glassy | cross-on | cross | cross-on | glassy | on | glassy | glassy | cross | cross-on | glassy | cross | cross | glassy |
High Tide | 3:42PM0.78m | 4:00AM0.52m | 4:09PM0.75m | 4:36AM0.58m | 4:36PM0.69m | 5:14AM0.62m | 5:03PM0.63m | 5:56AM0.66m | 5:30PM0.55m | 6:44AM0.67m | 5:58PM0.47m | 7:43AM0.68m | 6:27PM0.39m | ||||||||
Low Tide | 9:00AM0.08m | 10:18PM0.10m | 9:40AM0.10m | 10:39PM0.08m | 10:22AM0.13m | 11:01PM0.07m | 11:07AM0.17m | 11:24PM0.06m | 11:58AM0.22m | 11:50PM0.07m | 1:00PM0.27m | 00:21AM0.07m | 2:28PM0.32m | 00:59AM0.09m | |||||||
 |  |  | | |  | | |  | | | | | | | | | | |  | | |
 | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 3 | 5 |
Temp °C | 28 | 27 | 26 | 27 | 27 | 26 | 27 | 27 | 27 | 28 | 27 | 27 | 28 | 28 | 27 | 28 | 27 | 27 | 27 | 27 | 26 |
Feels °C | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 30 | 30 | 30 | 30 | 31 | 30 | 29 | 31 | 28 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | NE 5 | NNE 5 | SSW 14 | NNE 5 | NE 6 | NNE 6 | NNE 6 | NNE 6 | NNE 7 | NNE 7 | NNE 7 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NE 8 | NE 8 | SSW 16 | NNE 7 | NNE 7 |
| kJ | 16 | 29 | 13 | 39 | 23 | 32 | 27 | 65 | 36 | 61 | 81 | 41 | 76 | 130 | 60 | 114 | 140 | 93 | 50 | 114 | 70 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 15 | NNE 7 | NNE 6 | SSW 13 | SSW 13 | SSW 12 | SW 17 | SSW 16 | SSW 15 | SW 15 | SW 15 | SSW 14 | NE 9 | SSW 18 | SSW 18 | SSW 16 | W 12 | SSW 15 | SSW 15 |
| kJ | 24 | 44 | 42 | 9 | 8 | 34 | 16 | 15 | 44 | 25 | 22 | 36 | 33 | 20 | 37 | 31 | 31 | 51 | 11 | 45 | 42 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | N 8 | N 7 | SW 11 | SSW 13 | W 10 | SW 18 | SSW 17 | SSW 12 | SSW 12 | S 12 | W 11 | S 11 | W 12 | SW 14 | SSW 14 | SSW 14 | W 11 | E 15 | W 10 | W 10 |
| kJ | 15 | 5 | 4 | 4 | 18 | 8 | 12 | 28 | 14 | 14 | 11 | 9 | 9 | 11 | 33 | 20 | 20 | 10 | 5 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 8 | — | — |
| kJ | — | — | — | 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 103 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 100 | 14 | 98 | 100 | 14 | 100 | 4 | 20 | 100 | 112 | 14 | 100 | 4 | 4 | 101 | 100 | 4 | 101 | 101 | 4 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.
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