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Surf Forecasts:

Kapoho Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Thursday 19 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kapoho Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kapoho Bay sea temperature is
24.5° C
 (Which is normal for this time of year)

How big are the waves at Kapoho Bay today?

The current surf forecast for Kapoho Bay at 3AM is: 0.7m 13s primary swell from a South direction and 0.8m 7s secondary swell from a East-southeast direction (forecast issued at 07:00pm March 19). An open ocean swell of 1.0m 11s is not directed at the surf break, a second open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (20 Mar)2.5ft (0.7m)13s
Afternoon (20 Mar)2ft (0.6m)13s
Evening (20 Mar)2ft (0.6m)12s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
19
Friday
20
Saturday
21
Sunday
22
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
2
1
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.8
S
0.8
S
0.7
S
0.7
S
0.7
S
0.7
S
0.7
S
0.7
S
0.6
S
0.6
S
0.6
S
0.6
S
0.6
S
0.4
SSW
0.4
SSW
0.5
S
0.5
S
0.5
S
0.4
SSW
0.5
SSW
0.5
SSW
0.4
SSW
0.4
SSW
0.8
ESE
Period(s) (?)14131313131313131212121212191812121217171717167
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2322291711681681661631611131101061021021191106968671011661661128961
Wind
(km/h)
25
SSW
25
SW
15
SW
15
SSW
15
S
20
S
20
S
25
S
25
S
20
S
20
SSW
15
SSW
20
SSW
20
SSW
25
S
25
S
20
SSW
5
NW
5
NNW
5
NNW
10
NNE
5
SSE
15
SSE
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		crosscrosscrosscross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscrosscrosscrossoffglasscross-
off		crosscross-
on		cross-
on		cross
High Tide
/ height (m)
3:52AM
0.84
4:38PM
0.96
4:20AM
0.76
5:21PM
0.96
4:49AM
0.67
Low Tide
/ height (m)
10:01PM
0.17
10:05AM
0.03
10:47PM
0.23
10:33AM
0.03
11:37PM
0.30
11:05AM
0.05
Thursday
19
Friday
20
Saturday
21
Sunday
22
Sunrise-----6:22-------6:22-------6:20--
Sunset6:29-------6:30-------6:30-------
light rain
part cloud
cloud
cloud
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
thunderstorm
thunderstorm
cloud
light rain
thunderstorm
cloud
cloud
light rain
Rain (mm)
2---------------11-11--1
Temp. °C232424232324252525242424242425252524242423232425
Feels °C (?)222224232324252425242525252525252527272726262624
  • 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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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 Kapoho 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.

View detailed surf forecast for Kapoho Bay at:
surf-forecast.com

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