Kua Bay surf break

Kua Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Tuesday 21 Apr 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kua Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kua Bay sea temperature is
25.3° C
(Which is slightly warmer than usual)

How big are the waves at Kua Bay today?

The current surf forecast for Kua Bay at 5AM is: 0.5m 13s primary swell from a West direction (forecast issued at 01:00am April 21). An open ocean swell of 0.5m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (21 Apr)2ft (0.6m)14s
Afternoon (21 Apr)1.5ft (0.5m)15s
Evening (21 Apr)2.5ft (0.7m)16s

Table - waves today at Kua Bay. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Tuesday
21
Wednesday
22
Thursday
23
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
1
0
0
0
0
0
0
1
2
2
2
2
1
0
1
2
1
1
2
1
1
1
1
2
Swell
Height Map
Wave Height (m) & direction (?)
0.5
W
0.5
W
0.5
W
0.5
W
0.6
W
0.5
W
0.5
W
0.7
W
0.7
W
0.7
W
0.8
W
0.7
W
0.7
W
0.8
W
0.8
W
0.8
W
0.7
W
0.7
W
0.7
W
0.7
W
0.7
W
0.6
W
0.5
W
0.5
WNW
Period(s) (?)131313131415151616151414141414141413131313131616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)84848587132121118236239209261203203261257243181176173171168125132147
Wind
(km/h)
10
SSW
10
SW
5
SW
5
SW
10
W
10
W
5
WNW
5
NNW
5
NW
10
SSW
10
SSW
5
WSW
10
WNW
10
WNW
10
NW
5
NW
5
SSW
5
SSW
5
SW
5
NW
10
WNW
10
NW
10
NNW
5
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscrosscrosscross-
on
cross-
on
ononglasscross-
off
cross-
off
glasscross-
on
ononglasscross-
off
glassglassonononcross-
on
glass
High Tide
/ height (m)
6:13AM
0.29
7:39PM
0.80
7:32AM
0.26
8:49PM
0.75
9:45AM
0.27
Low Tide
/ height (m)
2:11AM
0.20
11:43AM
0.08
3:41AM
0.20
12:35PM
0.14
5:03AM
0.18
1:56PM
0.20
Tuesday
21
Wednesday
22
Thursday
23
Sunrise---6:01-------6:01-------6:00----
Sunset------6:43-------6:44-------6:44-
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
thunderstorm
part cloud
clear
clear
clear
Rain (mm)
-------------------1----
Temp. °C242423242525252424242424252525252424242425262625
Feels °C (?)262626272727282728272727282727292728282727282829
  • 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

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.


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