Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Kua Bay Surf Forecast and Surf Report

Issued: 7 pm 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
26.7° C
0.5° 

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 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 TypeTime (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 Forecast

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

Days 5-7 Weather Summary

Light 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
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
SSW
18
0.9
NE
7
0.4
SW
17
0.3
SSW
20
0.9
NNE
8
1
NNE
8
0.1
SW
14
0.9
NNE
8
1
NNE
8
0.9
NNE
8
0.9
NNE
8
0.9
NNE
7
0.9
NNE
10
1
NNE
9
1.3
NNE
5
0.9
ENE
11
1.1
NE
9
0.7
NNE
8
0.1
SW
19
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
8
0
0
0
0
0
0
0
76
0
0
0
15
Wind (km/h)
5
E
10
WNW
0
W
5
E
10
NNW
5
NNW
5
SE
5
W
5
W
5
NNE
10
NW
5
WNW
10
NNE
20
N
30
N
0
SSW
25
SSW
5
WNW
5
SSW
Wind State
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
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
thunderstorm
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:56
5:56
5:56
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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