Kua Bay Surf Break

Lat Long: 19.81° N 156.01° W

Kua Bay Surf Forecast and Surf Report

Issued: 7 pm 25 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: Thursday 30 Jul, 2PM (local time) - 1ft (0.3m), 18s period, SW swell with 49 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 18s and forecast to arrive on Thursday (Jul 30) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 10s 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 2PM (Thu 30th Jul)1ft (0.3m) 18s

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


The Lowdown

Alright, Rusty here. Let’s talk about what’s going on in your local waters.

We’ve got a long stretch ahead, and I gotta be straight with you – it’s a quiet one. The next week and a half is looking pretty flat, with no real surf to speak of. There’s a big gap of nothing from the 26th of July all the way through to the 30th of July, just poor conditions and zero swell. Don’t bother paddling out.

The first sign of life comes on the 30th of July, Thursday afternoon, at Kua Bay. A small, clean pulse of swell sneaks in from the southwest at 1 ft, with a very long period of 18 seconds, giving it that groundswell feel. The combined energy is weak though (49), so it’s not going to be powerful. Winds are light and out of the south, keeping it clean. This is a spot for the patient surfer – it’s fairly consistent, but it’s also exposed to the WNW swell direction, and this swell is coming from the SW, so it’s not the ideal angle. The water temp is about average for this time of year. Crowds are sometimes a thing here, so you might have a few others waiting for the same small sets.

That little burst fades quickly. Friday the 31st sees a few tiny waves, 0.7 ft to 1 ft, but it’s mostly messy. Saturday the 1st of August offers a glassy 0.7 ft wave in the morning, but it’s tiny. Then we go back into a flat spell from the 2nd through the 5th of August – another long gap of nothing.

The next whisper of hope shows up on the 6th of August, Thursday. The morning brings a 1 ft SW groundswell, period 13 seconds, and it’s glassy. The energy is still low (31). The 7th of August, Friday morning, is the best of the whole run. We get a 1 ft SW swell with a 14-second period, and the combined energy bumps up to (61). Winds are light and glassy, making it look incredibly clean. Late in the afternoon, a risk of thunderstorms, but the wind is offshore, keeping it tidy. This is the standout window. It’s not big, but for a flat spell, those glassy conditions on a long-period swell will be the most fun you’ll have.

The 8th and 9th of August are tiny and weak again, with a final glassy 0.7 ft WNW swell on the 9th afternoon, and another 1 ft WNW swell on the 10th of August morning. The period is 15-16 seconds, so it’s long, but the size is minimal.

Look, if you’re desperate for a paddle, aim for the 6th and 7th of August – those mornings with glassy conditions and a little waist-high wave are your best bet. For the rest of it, you’re better off cleaning your board and waiting.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 26°C on Tue night). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
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)
0.1
SW
14
1
NNE
8
1.2
NNE
8
0.9
NNE
8
0.9
NNE
8
0.9
NNE
8
0.9
NNE
8
0.8
ENE
13
1
ENE
13
0.5
N
9
1.3
NNE
9
1
NNE
8
0.7
NNE
8
0.6
NE
7
0.3
SW
18
0.3
SW
16
0.3
SW
16
0.2
N
9
0.2
N
8
Wave Graph
Metric surfscale
Energy kJ
8
0
0
0
0
0
0
0
0
40
0
0
0
0
49
41
40
6
5
Wind (km/h)
5
NNE
10
NNW
5
SW
5
NE
5
W
10
N
5
NNE
20
N
15
N
5
SSW
10
WNW
10
NW
15
S
15
NW
15
S
5
NNW
10
WNW
5
S
5
ESE
Wind State
cross
cross-on
glassy
cross
cross-on
cross-on
cross
cross-on
cross-on
cross-off
on
on
cross-off
on
cross-off
cross-on
cross-on
cross-off
glassy
High Tide
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
4:45PM0.81m
4:57AM0.44m
5:12PM0.77m
Low Tide
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
9:46AM0.07m
11:35PM0.12m
10:24AM0.11m
11:59PM0.11m
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
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
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:02
7:01
7:01
7:01
7:00
7:00
 mm
Temp °C
27
27
27
26
27
28
27
28
28
27
27
28
26
27
28
27
28
28
26
Feels °C
29
29
30
29
28
29
30
29
29
32
30
31
30
29
30
30
30
32
30
  • Map Icons:
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  • 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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