Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Issued: 7 pm 02 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kua Bay sea temperature is
27.3° C

1.5°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 3 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 Saturday (Jul 04) at 8PM.

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

Alright folks, Rusty here. Let's take a look at what Kua Bay has cookin' over the next couple of weeks. Gotta be straight with you: it's a slow start. We're looking at a real flat spell to kick things off.

Right now, through the first week of July, it's pretty much a write-off. Friday the 3rd through to Sunday the 12th, that's a solid ten days where the combined swell energy is sitting at zero, or barely a whisper. You'll see a few tiny pulses of 1ft to 1ft from the west, but it's all labelled as poor surf. The water temp is about average for this time of year, nothing to write home about. Honestly, for a paddle surfer, there's nothing to get excited about here. If the wind kicks up, this setup might be more interesting for the kite crew than anyone on a longboard.

Now, we finally get a little glimmer of hope starting Monday the 13th of July. It's still marginal, but we start seeing a bit of life. A 2ft west swell rolls in Monday morning with a long 19-second period. The combined energy jumps to 257 (moderate), but it's still a marginal call. The real standout moment of this whole outlook happens Monday afternoon the 13th of July. We get the best conditions of the period: a 2ft west swell with a solid 18-second period, pushing 238 moderate energy, and the wind goes completely glassy, calm as. That's a rare window of clean surf. It's not a bomb, but for a spot that's been dead flat for over a week, this is the pick of the litter. Need to mention that this long-period west swell can break a bit straight at a beach setup like Kua Bay, but with offshore winds from the direction the break likes (WNW), the shape could still be alright. There's a chance of crowds here too, so get in early.

After that, through the rest of the second week, we see a consistent run of small west swell: 2ft to 3ft, with periods dropping from 15 to 14 seconds. The combined energy stays in the moderate range (200-300). We get a few clean windows Tuesday and Wednesday afternoons the 14th and 15th with light cross-off winds, but the mornings look bumpier with cross-onshore breezes. Nothing else really stands out as a true classic session, but it's a whole lot better than that dry spell. By Saturday the 18th, it fades back out.

So, bottom line: if you're desperate for a paddle, pin your hopes on Monday afternoon, July the 13th. That's the best on offer. The rest is just small, workable mush with a few clean moments here and there.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu night. Warm (max 27°C on Fri morning, min 25°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Tue afternoon. Warm (max 27°C on Mon morning, min 25°C on Sun night). Wind will be generally light.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thu
9
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
13
0.8
NNE
8
0.9
NNE
8
0.2
WNW
12
0.3
SW
16
0.3
SW
15
0.8
NNE
8
0.8
NNE
8
0.9
NNE
7
0.1
SW
13
0.1
W
10
0.1
W
10
0.1
W
10
0.1
W
10
1.1
NE
7
0.1
SW
13
0.9
NE
7
0.1
W
19
0.7
NNE
6
0.8
NNE
7
0.2
W
16
Wave Graph
Metric surfscale
Energy kJ
17
0
0
15
38
36
0
0
0
7
2
2
2
2
0
7
0
7
0
0
20
Wind (km/h)
5
NE
5
W
10
WSW
5
NE
10
W
5
SSW
5
ENE
5
NNW
5
SW
5
NNE
5
NW
0
SSE
10
ENE
5
WSW
5
SW
5
NNE
5
WNW
5
S
5
NNE
5
NW
0
SW
Wind State
glassy
cross-on
cross
cross
cross-on
glassy
glassy
glassy
glassy
cross
glassy
glassy
cross-off
cross-on
glassy
glassy
cross-on
cross-off
cross
on
glassy
High Tide
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
12:22PM0.73m
Low Tide
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
7:43PM0.29m
rain showers
clear
part cloud
clear
clear
part cloud
rain showers
clear
part cloud
clear
clear
part cloud
clear
part cloud
rain showers
rain showers
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
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
2
1
1
2
Temp °C
26
27
27
26
26
27
26
27
27
26
27
26
26
26
26
26
27
27
26
27
27
Feels °C
30
29
30
30
28
30
29
28
29
28
29
29
28
28
28
29
29
30
29
29
29
Swell 1
Height (m)
Direction
Period (s)
0.8
NNE
8
0.8
NNE
8
0.9
NNE
8
0.8
NNE
8
0.8
NNE
8
0.9
NNE
8
0.8
NNE
8
0.8
NNE
8
0.9
NNE
7
0.3
SSW
16
0.9
NNE
7
1.1
NE
7
0.3
SSW
15
0.9
NNE
8
1.1
NE
7
0.9
NNE
8
0.9
NE
7
1.1
NE
7
0.7
NNE
6
0.8
NNE
7
0.9
NNE
7
Energy kJ
72
76
98
86
78
106
78
74
90
51
93
119
42
98
126
98
77
103
34
54
81
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
13
0.2
SSW
14
0.2
SSW
13
0.2
WNW
12
0.3
SW
16
0.3
SSW
20
0.3
SSW
18
0.3
SSW
18
0.3
SSW
17
0.1
NW
11
0.4
SSW
16
0.4
SSW
15
0.1
W
10
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.4
NE
8
0.5
NE
7
0.2
SSW
13
Energy kJ
17
19
16
15
38
75
65
61
58
5
82
74
2
41
40
40
38
37
14
26
16
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
13
0.2
SSW
17
0.2
SSW
17
0.2
SSW
21
0.3
SSW
21
0.3
SW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.1
SW
13
0.1
W
10
0.1
W
10
0.1
W
10
0.1
SW
13
0.1
W
19
0.3
SSW
13
0.2
SSW
13
0.2
W
16
Energy kJ
17
28
27
45
85
36
21
20
20
7
2
2
2
7
7
34
16
20
Wind waves
Height (m)
Direction
Period (s)
0.9
NNE
7
0.9
NNE
8
Energy kJ
96
98
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
Distance (km)
4
100
101
4
100
4
4
4
4
4
4
4
4
100
4
4
100
4
20
100
4
Best forecast wave conditions in Big Island
Rating
(10 max)
2
1
1
3
1
1
3
3
1
3
2
2
2
2
2
2
2
2
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
2
2
3
2
2
3
3
2
3
2
2
4
2
2
4
2
3
4
3
2
Header Global
Rating
(10 max)
5
8
5
4
5
5
9
6
7
6
9
7
5
6
9
9
9
6
5
6
6
  • 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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