Surf Forecasts:
Kua Bay surf forecast from 24 Jul 2026:
- Most powerful swell: Tuesday 28 Jul, 5PM (local time) - 4.5ft (1.3m), 5s period, NNE swell with 76 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 1.3m 5s and forecast to arrive on Tuesday (Jul 28) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 11s period and expected on Wednesday (Jul 29) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Tue 28th Jul) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good, hard look at what Kua Bay has on offer for the next couple of weeks.
To be straight with you, it’s a pretty lean stretch. For the immediate future, there’s just nothing doing. We’re looking at a gap that kicks off now, on the 24th, and runs all the way through until around the morning of the 28th. That’s a solid four days with zero surf to recommend. The ocean is flat, and the reports are all "poor surf conditions" with no energy showing up. Just a whole lot of glassy, calm water.
The first real flicker of life comes on the afternoon of the 28th. We see a tiny bump of swell showing at 4 ft from the NNE, but the 12 to 18 mph winds are howling cross-onshore, making it choppy and lumpy. The combined swell energy is a weak 76 , so it’s not worth getting wet for.
The rest of the period up to the 8th of August is a real struggle. We get a few pulses of very long-period groundswell from the SW and W, with periods hitting 16 to 18 seconds. But the size is tiny – we’re talking 1 ft at best. That’s ankle-slapping stuff, and the combined energy stays weak, in the 10 to 71 range. There are some nice glassy mornings and clean afternoons, especially on the 31st of July and the 1st of August, but without any significant swell to push through, it’s just not going to break properly.
Honestly, the best bet in this entire window is the afternoon of Saturday the 8th of August. We’ve got clean, cross-off shore winds from the SSW at 12 mph, and a little 1 ft swell from the WNW at a 13-second period. The combined swell energy sits at a very weak 35 . It’s not going to be big, but with that wind and a touch of long-period energy, it might just be clean enough for a longboard to catch a few tiny nuggets. For Kua Bay, a wave is a wave, so that’s your standout, but don’t expect much.
The water temps are about average for the time of year, so no thermal complaints here. This is just one of those flat spells the area gets. It won't last forever, but right now, the surf forecast is a big fat zero.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Sat morning, min 25°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed afternoon. Warm (max 29°C on Tue afternoon, min 25°C on Sun night). Winds increasing (calm on Mon night, fresh winds from the N by Tue afternoon). | ||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | ||||||||||||||
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 18 | NE 7 | SW 17 | SSW 20 | NNE 8 | NNE 8 | SW 14 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | NNE 10 | NNE 9 | NNE 5 | ENE 11 | NE 9 | NNE 8 | SW 19 |
Wave Graph  | |||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 76 | 0 | 0 | 0 | 15 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | glassy | on | glassy | glassy | cross-on | glassy | glassy | on | glassy | cross-on | cross-on | cross-on | glassy | cross-off | on | glassy |
High Tide | 11:22PM0.29m | 1:25PM0.71m | 00:50AM0.29m | 2:06PM0.75m | 1:45AM0.30m | 2:43PM0.78m | 2:27AM0.32m | 3:16PM0.81m | 3:05AM0.34m | 3:48PM0.82m | 3:41AM0.37m | 4:17PM0.82m | 4:18AM0.40m | ||||||
Low Tide | 8:43PM0.28m | 5:20AM0.14m | 9:10PM0.23m | 6:17AM0.12m | 9:35PM0.20m | 7:07AM0.10m | 9:59PM0.18m | 7:51AM0.07m | 10:24PM0.16m | 8:31AM0.06m | 10:48PM0.14m | 9:09AM0.06m | 11:12PM0.13m | ||||||
 |  | | | | |  | |  | | | | | | | | |  | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — |
 | 7:04 | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — |
Temp °C | 27 | 27 | 27 | 27 | 28 | 28 | 26 | 27 | 26 | 26 | 27 | 27 | 26 | 28 | 29 | 28 | 28 | 28 | 26 |
Feels °C | 31 | 29 | 29 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 28 | 30 | 30 | 29 | 29 | 28 | 29 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | NNE 7 | NE 7 | NNE 7 | NNE 7 | SSW 16 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 7 | ENE 13 | ENE 13 | ENE 12 | NNE 9 | NE 9 | NNE 8 | NE 8 |
| kJ | 30 | 71 | 81 | 70 | 51 | 130 | 95 | 103 | 120 | 93 | 88 | 81 | 32 | 55 | 113 | 137 | 216 | 67 | 125 |
Swell 2 Height (m) Direction Period (s) | NE 6 | SSW 18 | ENE 7 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | NNE 10 | SSW 14 | SSW 14 | SSW 14 | ENE 11 | SSW 14 | ENE 9 | SSW 13 |
| kJ | 8 | 61 | 18 | 76 | 37 | 102 | 102 | 86 | 84 | 48 | 42 | 35 | 41 | 37 | 40 | 215 | 36 | 49 | 31 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 13 | SW 17 | SSW 16 | S 12 | S 11 | SW 14 | E 14 | E 14 | E 14 | E 13 | SSW 14 | — | — | — | SSW 14 | SSW 4 | SSW 13 | SW 19 |
| kJ | 66 | 17 | 76 | 25 | 11 | 2 | 8 | 16 | 16 | 15 | 30 | 41 | — | — | — | 37 | 2 | 33 | 15 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNE 8 | — | — | — | — | — | — | — | NNE 10 | NNE 9 | NNE 5 | — | — | — | — |
| kJ | — | — | — | — | 103 | — | — | — | — | — | — | — | 145 | 161 | 76 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 14 | 101 | 4 | 14 | 100 | 4 | 4 | 4 | 4 | 4 | 100 | 4 | 20 | 20 | 21 | 4 | 130 | 4 | 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.
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