Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Issued: 7 pm 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
27.4° C

1.6°C warmer than normal for this time of year

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 4 Jul 2026:

  • Best quality surf: Friday 10 Jul, 8PM (local time) - 1.5ft (0.4m), 14s period, W swell with cross-offshore winds.
  • Most powerful swell: Friday 10 Jul, 5PM (local time) - 1.5ft (0.4m), 14s period, W swell with 66 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 8PM (local time) - 1.5ft (0.4m), 14s period with W swell.

Best Forecast Surf Conditions for Kua Bay this week:

The surf forecast for Kua Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 10) at 8PM. The primary swell is predicted to be 0.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kua Bay in the next 16 days are 0.4m 14s and forecast to arrive on Friday (Jul 10) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Monday (Jul 06) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 10th Jul)1.5ft (0.4m) 14s
Best Surf 8PM (Fri 10th Jul)1.5ft (0.4m) 14s
Most Powerful 5PM (Fri 10th Jul)1.5ft (0.4m) 14s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here, looking at the Kua Bay stretch for the next couple of weeks.

Right off the bat, it’s a slow starter. From Saturday, July 4th all the way through to Monday, July 13th, it’s mostly flat or close to it. Barely a ripple. The swell is tiny, the energy is nothing – numbers like 38 or even zero for the combined energy. Not worth wetting a wetsuit for.

There’s a very small bump on Sunday the 12th late in the day, but it’s still ordinary. The real story begins to build on Tuesday, July 14th.

The standout window is Thursday, July 16th. The best session of the outlook is the Thursday afternoon at Kua Bay. Swell size is a little over 3 feet, coming from the WNW at 15 seconds – a nice, long period groundswell with proper energy. The combined energy is moderate at 284, but the big win is the wind: completely glassy. Calm, zero wind. That’s a major positive for clean waves. Water temp is about average for this time of year, nothing out of the ordinary. Crowds can be ‘sometimes’, so you might have a few out, but for quality like that, it’s fine.

It’s a beach break, and with that long period (15 seconds), it might line up a bit straight, but with those glassy conditions, it’ll be a blast. Intermediates will have a good time here.

Wednesday the 15th also has swell – about 3 feet from the WNW at 16 seconds – with energy hitting 416. The cross-onshore wind on Wednesday morning will mess with the surface a bit, but it’s still rideable. Still, Thursday afternoon glass-off is the obvious pick.

After that, the swell fades through the weekend and into the next week. By Saturday the 18th and Sunday the 19th, it’s back to small, weak waves with poor conditions.

So, lay low before July 14th. Mark Thursday, July 16th afternoon – that’s your clean, glassy window on a long period swell. It’s not huge, but it’s the best we’ve got.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri night. Warm (max 27°C on Sat morning, min 25°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue morning, min 25°C on Mon night). Wind will be generally light.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Fri
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
WNW
12
0.3
SW
16
0.3
SW
15
0.2
WNW
12
0.8
NNE
8
0.1
NW
11
0.1
NW
11
0.1
W
10
0.1
W
10
0.1
W
10
0.9
NNE
7
1.1
NE
7
0.1
SW
13
1
NE
7
0.1
W
17
0.1
W
16
0.2
W
15
0.2
W
14
0.3
W
14
0.3
W
13
0.4
W
14
Wave Graph
Metric surfscale
Energy kJ
15
38
36
14
0
5
5
2
2
2
0
0
7
0
6
5
17
16
32
32
66
Wind (km/h)
10
NE
10
NW
5
SW
5
NE
5
NW
5
WNW
10
NE
5
NW
5
NNE
10
NE
5
W
0
SW
0
ESE
5
WNW
10
SSW
0
ESE
10
WSW
5
WNW
5
NNE
5
WNW
10
SSW
Wind State
cross
on
glassy
cross
on
glassy
cross
on
glassy
cross
glassy
glassy
glassy
on
cross-off
glassy
cross-on
glassy
glassy
on
cross-off
High Tide
6:52AM0.39m
6:46PM0.71m
7:53AM0.43m
7:17PM0.64m
9:01AM0.49m
7:52PM0.57m
10:13AM0.56m
8:37PM0.48m
11:22AM0.64m
9:39PM0.40m
12:22PM0.73m
11:07PM0.34m
1:17PM0.81m
Low Tide
1:24AM0.14m
11:51AM0.20m
1:54AM0.13m
12:46PM0.27m
2:25AM0.12m
2:03PM0.33m
3:00AM0.10m
3:53PM0.37m
3:41AM0.09m
6:03PM0.35m
4:30AM0.07m
7:43PM0.29m
5:25AM0.05m
rain showers
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
rain showers
clear
clear
rain showers
rain showers
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:50
5:50
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:07
7:07
7:07
7:07
7:07
 mm
1
1
1
2
Temp °C
26
27
27
26
27
27
26
27
27
26
27
27
26
27
27
26
27
27
27
28
27
Feels °C
30
29
29
29
28
29
27
29
30
27
30
30
29
29
30
29
29
29
30
31
30
Swell 1
Height (m)
Direction
Period (s)
0.9
NNE
8
0.9
NNE
8
0.9
NNE
8
0.3
SSW
18
0.8
NNE
8
0.3
SSW
17
0.8
NNE
7
0.4
SSW
16
1
NNE
7
0.3
SSW
15
0.9
NNE
7
0.3
SSW
14
0.8
NNE
7
1
NE
7
1
NE
7
0.8
NNE
7
0.9
NE
7
0.9
NNE
7
0.8
NNE
7
0.9
NE
7
1
NE
7
Energy kJ
117
106
109
65
76
58
70
82
114
42
96
40
68
93
88
59
69
83
61
65
91
Swell 2
Height (m)
Direction
Period (s)
0.2
WNW
12
0.3
SW
16
0.3
SSW
20
0.2
SSW
15
0.3
SSW
18
0.2
SSW
14
0.4
SSW
16
0.1
W
10
0.4
SSW
15
0.1
W
10
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.2
SSW
13
0.2
SSW
13
0.2
SSW
13
0.3
W
14
0.3
W
13
0.4
W
14
Energy kJ
15
38
75
21
61
20
86
2
74
2
41
41
38
37
17
16
16
32
32
66
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
21
0.3
SSW
21
0.3
SW
15
0.2
WNW
12
0.2
SSW
14
0.1
NW
11
0.1
NW
11
0.1
W
10
0.1
SW
13
0.1
W
17
0.1
W
16
0.2
W
15
0.2
W
14
0.2
SSW
12
0.2
W
16
0.2
S
12
Energy kJ
45
85
36
14
20
5
5
2
7
6
5
17
16
15
21
11
Wind waves
Height (m)
Direction
Period (s)
0.9
NE
8
0.9
NNE
7
0.9
NNE
7
1
NE
7
1.1
NE
7
Energy kJ
88
93
93
107
122
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
4
100
4
4
4
4
14
103
4
4
4
4
4
4
4
14
100
4
14
100
22
Best forecast wave conditions in Big Island
Rating
(10 max)
3
1
1
3
3
1
3
2
2
1
2
2
1
1
2
2
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
2
3
3
2
3
2
2
3
2
2
4
2
2
4
4
1
4
3
3
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
4
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Kua Bay:

join our community of surf reporters

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 locationNearest