Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Issued: 7 am 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
27.1° C

1.3°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 2 Jul 2026:

  • Most powerful swell: Saturday 4 Jul, 11AM (local time) - 1ft (0.3m), 16s period, SW swell with 38 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 0.3m 16s and forecast to arrive on Saturday (Jul 04) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Tuesday (Jul 07) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Sat 4th Jul)1ft (0.3m) 16s

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


Updates in  hr  min  s Forecast update imminent

Mate, I'm Rusty, and I've been pouring over the charts for your stretch of coast, and I gotta level with you—it’s a grim opening. We’re staring down a long stretch of nearly flat, messy surf until we hit the second week of July. That’s a solid ten days of nothing worth talking about.

Let’s focus on Kua Bay (Big Island). From Thursday the 2nd all the way through the 9th, it’s a total bust. You’ve got waves barely pushing 0.7ft to 1ft, with swell periods that are all over the shop—some long-period groundswell at 13 to 17 seconds, but the energy is pathetic, like a whisper (combined energy in the 20 to 50 range). The wind is mostly light and glassy or cross, but there’s nothing for it to shape. The water is sitting around 81°, which is a touch warmer than normal for this time of year, but you won't be riding anything.

The first real chance to wet your wetsuit comes on Saturday the 11th of July. The morning still looks sad, but by the afternoon, the surface goes glassy clean with a small 2ft swell pushing in from the west. The period is a solid 14 seconds, so it’s got some life for its size, and the combined energy climbs to a moderate 148. It’s not going to get your heart racing, but it’s surfable. If you’ve got a longboard or a foamie, you might snag a few clean little runners.

Sunday the 12th keeps the same vibe with a 1ft to 2ft west swell, still with decent 13 to 14 second intervals. Both sessions are glassy, but the energy slips to around 97 to 106. It’s ordinary, but it’s clean. Monday the 13th bumps up a bit to 2ft with a 15-second period, but the wind turns cross-onshore in the morning and cross-shore in the afternoon, so the surface gets bumpy and it’s not worth the hassle.

Now, this is where it gets interesting. Tuesday the 14th of July is your standout in this whole forecast. The swell firms up to a consistent 2ft from the west, with a long 16-second period—that’s real groundswell with some heft. The combined energy hits a strong 257, so those waves have punch. The morning is still a little scratchy with light cross-onshore wind, but the afternoon? That’s the money. The wind goes light cross-offshore from the SSW, cleaning everything right up. The forecast calls it “expect good surf conditions.” For a spot that’s fairly consistent and exposed to WNW swell, this is the day to mark on your calendar. The crowd factor says “sometimes,” so you might have company, but with these clean, waist-to-chest high waves (around 3ft faces), it’s worth the paddle. Just keep in mind, with that very long period, the sets will have longer lulls and could break a bit straight at a beach break, but Kua Bay handles it alright.

Wednesday the 15th is a carbon copy of Tuesday’s size and energy, with the afternoon again cleaning up under a cross-offshore breeze. Thursday the 16th fades to 2ft to 2ft, energy dropping to 155-212, and the wind goes more cross-shore, so quality dips. After that, Friday the 17th drops back to 2ft and the energy plummets, so we’re back to ordinary.

So, mate, don’t even think about it until Saturday the 11th. It’s small and clean but nothing special. The real standout is Tuesday the 14th of July in the afternoon—that’s your session. The second week has some consistent, moderate swell, but it’s not massive, so intermediate surfers will have a blast. Beginners should be fine on the 11th and 12th, but the 14th might be a bit much for total rookies.

Hang tight, the ocean will come good.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Thu night. Warm (max 27°C on Thu morning, min 25°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

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

Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
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)
0.2
WNW
13
0.6
NNE
8
0.2
WNW
13
0.8
NNE
8
0.6
NNE
8
0.2
WNW
12
0.3
SW
16
0.3
SSW
20
0.2
WNW
12
0.9
NNE
8
0.3
SSW
17
0.1
NW
11
0.1
W
10
0.1
W
10
0.1
W
10
0.9
NNE
8
1.1
NE
7
0.9
NNE
7
1
NE
7
1
NE
7
0.8
NNE
6
Wave Graph
Metric surfscale
Energy kJ
18
0
17
0
0
15
38
0
14
0
0
5
2
2
2
0
0
0
0
0
0
Wind (km/h)
5
WSW
10
SW
5
ENE
10
SW
5
SSW
5
ENE
5
W
5
SSW
5
NE
5
WNW
5
SW
5
NNE
10
NNW
0
NNE
5
NE
5
W
10
NNE
5
NE
10
W
5
SSW
5
N
Wind State
glassy
cross
glassy
cross
glassy
cross-off
cross-on
cross-off
cross
glassy
glassy
cross
on
glassy
cross
cross-on
cross-on
cross
cross-on
cross-off
cross-on
High Tide
5:46PM0.79m
5:59AM0.36m
6:16PM0.76m
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
Low Tide
10:29AM0.09m
00:55AM0.14m
11:07AM0.14m
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
clear
part cloud
rain showers
clear
rain showers
rain showers
clear
rain showers
rain showers
clear
part cloud
rain showers
clear
part cloud
clear
clear
part cloud
part cloud
clear
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
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
 mm
1
1
1
1
1
1
1
Temp °C
27
27
26
27
27
26
27
26
26
27
26
26
27
27
26
26
27
26
27
27
26
Feels °C
30
29
29
29
30
29
30
28
29
29
28
28
29
28
29
28
29
29
29
29
29
Swell 1
Height (m)
Direction
Period (s)
0.6
NE
8
0.6
NNE
5
0.8
NNE
8
0.8
NNE
8
0.7
NE
5
0.8
NNE
8
0.3
SW
16
0.7
NE
8
0.3
SSW
18
0.9
NNE
8
0.7
NE
7
0.9
NNE
7
0.4
SSW
16
1
NNE
7
0.9
NNE
8
0.9
NNE
8
1.1
NE
7
0.9
NNE
7
1
NE
7
1
NE
7
0.8
NNE
6
Energy kJ
36
17
72
76
30
86
38
65
65
103
54
93
82
108
88
98
126
96
107
102
54
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
14
0.6
NNE
8
0.2
SSW
13
0.2
SSW
14
0.6
NNE
8
0.2
WNW
12
0.3
SSW
21
0.7
NNE
5
0.2
SSW
15
0.3
SSW
18
0.6
NE
5
0.4
SSW
16
0.1
W
10
0.4
SSW
15
0.3
SSW
15
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.4
NE
8
Energy kJ
19
39
17
19
37
15
85
22
21
61
19
86
2
74
42
41
40
38
38
37
16
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
13
0.2
SSW
13
0.2
WNW
13
0.2
SSW
17
0.2
SSW
13
0.2
SSW
21
0.2
WNW
13
0.3
SSW
20
0.2
WNW
12
0.2
SSW
14
0.3
SSW
17
0.1
NW
11
0.1
W
10
0.1
W
10
0.3
SSW
13
Energy kJ
18
18
17
28
16
45
16
75
14
20
58
5
2
2
35
Wind waves
Height (m)
Direction
Period (s)
0.5
NNE
5
0.8
NNE
8
0.8
NNE
8
0.9
NNE
7
Energy kJ
13
78
80
93
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
2
1
1
2
3
1
1
1
2
2
1
2
2
2
1
1
2
1
Distance (km)
100
100
4
100
4
4
100
100
4
4
101
14
100
4
14
100
14
4
100
39
20
Best forecast wave conditions in Big Island
Rating
(10 max)
2
1
2
1
1
3
1
1
3
3
1
3
3
2
2
2
2
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
2
2
3
2
3
3
3
2
3
2
3
4
2
2
4
3
2
4
Header Global
Rating
(10 max)
9
5
9
5
5
6
5
9
7
5
8
9
8
6
8
9
6
9
5
5
9
  • 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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