Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Kua Bay Surf Forecast and Surf Report

Issued: 7 pm 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
27.9°C
1.3° 

Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kua Bay surf forecast from 24 Aug 2026:

  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 3ft (0.9m), 6s period, NE swell with 49 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 0.9m 6s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Monday (Aug 24) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Wed 26th Aug)3ft (0.9m) 6s

Table - best surf conditions forecast for Kua Bay over the next 16 days.


The Lowdown

Alright, I’m gonna level with you—right now at Kua Bay, it’s pretty flat. We’re looking at a long dry spell with no real surf to speak of until things maybe start to flicker toward the end of the first week of September. It’s a quiet stretch, so don’t rush to load the boards just yet.

Over the next several days, from Monday the 24th of August all the way through to Friday the 4th of September, pretty much every session is being written off with flat to tiny waves. You’ll see a few morsels here and there, like Wednesday the 26th morning offering 0.7m (about 2ft) from the NE with a period of 5 seconds and combined energy at a weak 37, but that’s still marked as poor surf conditions. The wind is often light and sometimes glassy, so it’d be a stunning day to be on the water—if there were any waves. There’s no swell to work with.

The one bright spot that might show up comes on Sunday the 6th of September in the afternoon. We’ve got a 0.3m (about 1ft) swell rolling in from the SW with a long period of 17 seconds, and combined energy hitting 47. It’s still tiny, but that long period groundswell suggests a little more shape and grunt, especially for a reef or point setup. The wind is light cross-shore, so conditions could be clean. That said, it’s not exactly a standout—just the best of a pretty lean outlook.

Kua Bay is an exposed spot, handling swell from the WNW direction best. The water temperature is sitting about average for this time of year, nothing wild to mention. Crowds here can turn up sometimes, but with this lack of surf, you’ll likely have the place to yourself.

If you’re chasing anything decent, it’s a waiting game. The early part of the window is a total bust, and even the later hints are marginal. Hang tight, and check back—forecasts can shift.

Rusty.

Short Range Forecast

Light rain (total 8mm), mostly falling on Mon night. Warm (max 29°C on Mon afternoon, min 25°C on Wed morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Warm (max 27°C on Thu afternoon, min 25°C on Wed night). Wind will be generally light.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
WNW
10
0.1
SW
14
0.1
NW
11
0.1
NW
10
0.8
NE
6
0.9
NE
6
0.7
NNE
5
0.7
NE
5
0.8
NNE
6
0.2
SSW
16
0.7
NNE
5
0.2
N
8
0.6
NNE
5
0.3
N
7
0.7
NE
5
0.2
W
10
0.8
NNE
6
0.9
NNE
6
0.7
NNE
6
Wave Graph
Metric surfscale
Energy kJ
19
8
5
4
0
0
0
28
40
0
22
5
17
8
0
14
0
0
0
Wind (km/h)
5
WSW
15
SW
5
WSW
5
N
5
NW
5
WSW
5
ENE
5
S
5
SW
5
ENE
5
WSW
5
SSW
5
NNE
10
W
5
SW
5
NE
5
NW
0
NW
5
N
Wind State
glassy
cross
glassy
cross-on
glassy
cross-on
glassy
cross-off
cross
glassy
glassy
glassy
glassy
cross-on
cross
cross
on
glassy
glassy
High Tide
1:39AM0.32m
2:15PM0.76m
2:16AM0.36m
2:46PM0.78m
2:51AM0.41m
3:15PM0.79m
3:25AM0.47m
3:42PM0.78m
4:00AM0.52m
4:09PM0.75m
4:36AM0.58m
4:36PM0.69m
Low Tide
9:01PM0.18m
6:54AM0.12m
9:20PM0.16m
7:39AM0.10m
9:39PM0.14m
8:20AM0.08m
9:58PM0.11m
9:00AM0.08m
10:18PM0.10m
9:40AM0.10m
10:39PM0.08m
10:22AM0.13m
11:01PM0.07m
part cloud
clear
thunderstorm
thunderstorm
clear
thunderstorm
rain showers
rain showers
part cloud
clear
part cloud
rain showers
part cloud
clear
rain showers
clear
clear
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:07
6:07
6:07
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:45
6:45
6:45
6:44
6:43
6:42
6:40
 mm
1
2
1
2
2
1
1
2
Temp °C
28
28
29
28
28
28
27
26
26
26
26
27
26
27
27
26
27
27
26
Feels °C
33
32
34
32
31
32
31
30
29
30
29
31
29
29
29
29
29
29
29
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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