Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Kua Bay Surf Forecast and Surf Report

Issued: 7 am 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
27.0° C
0.8° 

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 26 Jul 2026:

  • Most powerful swell: Friday 31 Jul, 11PM (local time) - 3ft (0.9m), 6s period, NE swell with 52 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 Friday (Jul 31) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 10s period and expected on Wednesday (Jul 29) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Fri 31st Jul)3ft (0.9m) 6s

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


The Lowdown

Alright folks, Rusty here. Let’s break down Kua Bay for the next couple weeks.

Honestly, things start off real quiet. From Sunday the 26th of July, right through the end of the month, there’s just no surf to speak of. The ocean’s flat, the wind’s mostly onshore, and the combined swell energy is zero. Not a single wave worth paddling for. That’s nearly a full week of nothing.

We finally get a tiny pulse on Thursday the 30th of July – a small groundswell from the southwest, about 1ft at 18 seconds, but the energy is barely a whisper at 49. The wind is light and cross-shore, but with such a long period, it’s just not breaking properly at the beach. For the next few days into early August, we get similar weak, high-period SW pulses. The size is tiny, maybe 0.6ft to 1ft, and the combined energy stays in the doldrums.

Now, here’s the one window that might be worth waiting for. It’s a long way out, so treat it as promising but not set in stone. We’re looking at the weekend of the 9th and 10th of August. On Sunday the 9th, we get a west swell building to about 2ft to 3ft, with a long 16-second period. The combined swell energy jumps to a moderate 372 in the afternoon. The wind is light and glassy or light cross-shore, which is exactly what we want for clean waves. That’s the best of the whole forecast. The water temp will be around 80°, which is a little warmer than average.

For the first nine days, you’re staring at a flat spell. That’s normal for this spot sometimes. But that late window? It might just be a little gem if the wind holds. The direction from the west is spot-on for Kua Bay, and with that long period, the shape should be there.

Keep the faith.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 29°C on Tue afternoon, min 25°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Wed morning, min 25°C on Fri night). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
AM
PM
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
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)
1
NNE
8
1.1
NE
8
0.9
NNE
8
0.9
NNE
8
0.8
NNE
7
0.9
NNE
8
0.9
ENE
13
1.1
ENE
12
1.3
NE
10
1.1
NNE
9
0.8
NNE
8
0.1
SW
19
0.3
SW
18
0.3
SW
18
0.3
SW
16
0.3
SW
16
0.2
N
9
0.2
N
8
0.2
N
8
0.3
SW
14
1
NE
8
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
0
0
0
15
49
49
41
40
6
5
5
29
0
Wind (km/h)
10
NNW
10
SSW
5
NNE
10
NW
10
N
0
NNE
20
N
15
N
0
WSW
15
NNW
15
NNW
15
S
15
NW
10
SW
5
N
10
W
0
WSW
10
NE
5
W
10
NNE
5
ENE
Wind State
on
cross-off
cross
on
cross-on
glassy
cross-on
cross-on
glassy
on
on
cross-off
on
cross
cross-on
cross-on
glassy
cross
cross-on
cross-on
cross-off
High Tide
2:43PM0.78m
2:27AM0.32m
3:16PM0.81m
3:05AM0.34m
3:48PM0.82m
3:41AM0.37m
4:17PM0.82m
4:18AM0.40m
4:45PM0.81m
4:57AM0.44m
5:12PM0.77m
5:39AM0.48m
5:39PM0.72m
Low Tide
9:59PM0.18m
7:51AM0.07m
10:24PM0.16m
8:31AM0.06m
10:48PM0.14m
9:09AM0.06m
11:12PM0.13m
9:46AM0.07m
11:35PM0.12m
10:24AM0.11m
11:59PM0.11m
11:05AM0.16m
00:23AM0.10m
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:58
5:58
5:58
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:01
7:01
7:01
7:00
7:00
7:00
 mm
Temp °C
27
27
26
28
28
28
28
29
27
28
28
27
27
27
27
28
28
27
27
28
27
Feels °C
29
30
30
29
29
31
29
30
32
30
30
31
29
29
30
31
31
31
30
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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