Surf Forecasts:
Kua Bay surf forecast from 22 Jul 2026:
- Most powerful swell: Thursday 23 Jul, 8AM (local time) - 2.5ft (0.7m), 6s period, NE swell with 31 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 0.7m 6s and forecast to arrive on Thursday (Jul 23) 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 1.1m 8s period and expected on Saturday (Jul 25) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Thu 23rd Jul) | 2.5ft (0.7m) 6s |
Table - best surf conditions forecast for Kua Bay over the next 16 days.
The Lowdown
Alright folks, Rusty here. For Kua Bay, it’s going to be a long, quiet stretch. Right from the start up to July 30th, we’re looking at a twelve-day gap with nothing rideable – just flat or "poor surf conditions" with no wave energy.
The first tiny glimpse of a wave shows up Thursday afternoon, July 30th. A 1ft swell out of the SW with a 18-second period. That's very long period but the energy is a weak 49. With offshore wind from the WNW it'll be clean, but there's almost no wave height.
Friday, July 31st stays around that 1ft SW (40 energy) in the morning, but winds are cross-onshore, so it'll be messy.
The best of a quiet bunch comes on Sunday, August 2nd. We get a 2ft W swell with a 12-second period. The combined energy hits 121 – that's the highest we see – and in the afternoon the wind turns glassy from the WNW. Water temp is about 80°F, which is normal for this time of year. It's not going to knock your socks off, but if you're itching for anything, that's your window.
Monday, August 3rd brings a 3ft NNE swell in the morning, but with a period of just 6 seconds and cross-onshore wind, the quality will be poor. The energy is moderate at 115, but it's going to be choppy and weak.
After that, it just fades back to tiny 0.6ft to 1ft dribbles from the NW with very weak energy all the way through August 6th.
So, bottom line: it's mostly flat. The only spot worth leaving the couch for is Kua Bay on the afternoon of Sunday, August 2nd. Conditions will be glassy, but don't expect much more than a knee-high roll.
-Rusty
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 27°C on Wed morning, min 25°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 28°C on Sun morning, min 25°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 24 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | NE 7 | NNE 6 | NNE 8 | NNE 8 | NNE 8 | SW 14 | NNE 8 | SSW 16 | NNE 8 | NNE 8 | NNE 7 | NNE 8 | NNE 7 | NNE 9 | NNE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross | glassy | glassy | cross-on | glassy | glassy | on | cross | glassy | on | cross | glassy | on | cross-off | cross | on | glassy | glassy |
High Tide | 11:39AM0.63m | 9:15PM0.33m | 12:37PM0.67m | 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 | |||||||
Low Tide | 7:54PM0.33m | 4:20AM0.14m | 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 | ||||||||
 |  |  | | |  | | | | | | | | | | | |  | | | | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 7:04 | — | — | 7:04 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:01 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 26 | 26 | 27 | 26 | 26 | 27 | 26 | 27 | 27 | 26 | 28 | 28 | 26 | 27 | 27 | 25 | 27 | 28 | 27 |
Feels °C | 30 | 30 | 29 | 29 | 30 | 29 | 28 | 29 | 27 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 6 | NNE 5 | NE 7 | NE 6 | NNE 7 | NE 7 | SSW 17 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | NNE 8 | SSW 15 | NNE 5 | NNE 8 | NNE 7 | NNE 9 | NNE 9 |
| kJ | 11 | 46 | 17 | 44 | 62 | 38 | 69 | 59 | 74 | 126 | 123 | 109 | 93 | 54 | 103 | 42 | 21 | 101 | 61 | 101 | 67 |
Swell 2 Height (m) Direction Period (s) | NE 7 | SSW 23 | SSW 22 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | ENE 7 | SSW 20 | SSW 16 | SSW 18 | SSW 18 | SSW 16 | NNE 4 | SSW 16 | E 14 | NNE 7 | ENE 13 | ENE 13 | ENE 13 | ENE 12 |
| kJ | 23 | 106 | 91 | 78 | 75 | 66 | 61 | 10 | 76 | 51 | 102 | 60 | 86 | 12 | 48 | 37 | 37 | 60 | 57 | 55 | 83 |
Swell 3 Height (m) Direction Period (s) | SSW 24 | SSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 17 | SSW 13 | SSW 21 | SSW 16 | SSW 20 | S 11 | SW 14 | E 15 | SSW 16 | E 14 | S 10 | ENE 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 |
| kJ | 55 | 30 | 28 | 25 | 25 | 30 | 17 | 45 | 25 | 37 | 10 | 8 | 17 | 84 | 16 | 2 | 40 | 41 | 37 | 39 | 38 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNE 6 | — | — | — | — | — | — | — | NNE 8 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 65 | — | — | — | — | — | — | — | 91 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 100 | 26 | 96 | 100 | 4 | 96 | 100 | 101 | 4 | 100 | 101 | 4 | 100 | 103 | 20 | 98 | 100 | 4 | 98 | 39 | 4 |
Best forecast wave conditions in Big Island | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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.
Nearest