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Surf Forecasts:

Kahalu'u Beach Park surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Thursday 12 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kahalu'u Beach Park surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kahalu'u Beach Park sea temperature is
25.3° C
 (Which is slightly warmer than usual)

How big are the waves at Kahalu'u Beach Park today?

The current surf forecast for Kahalu'u Beach Park at 9PM is: 0.9m 10s primary swell from a West-northwest direction and 0.4m 4s secondary swell from a South direction (forecast issued at 01:00pm March 12). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (12 Mar)3ft (0.9m)11s
Afternoon (12 Mar)3ft (0.9m)11s
Evening (12 Mar)3ft (0.9m)10s

Table - waves today at Kahalu'u Beach Park. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
12
Friday
13
Saturday
14
Sunday
15
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM
Rating
(10 max)
0
0
2
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.9
WNW
0.8
WNW
0.8
WNW
0.8
WNW
0.7
WNW
1.5
S
1.7
S
1.6
S
1.2
W
1.1
W
1.3
W
1.3
WSW
1.2
WSW
1.5
W
1.5
W
1.5
W
1.6
W
Period(s) (?)1111101010101010101010106669888899910
Wave
Graph
(?)Metric surfscale
Energy kJ (?)210202195191184180180167133131131102133178171234145228235202326342367500
Wind
(km/h)
20
S
15
SSW
5
W
10
NNE
5
NE
10
SSW
15
S
10
SSW
20
SSW
35
S
35
SSE
40
S
40
S
45
SSE
40
S
40
SSE
40
SSE
40
SSE
35
SSE
30
SSE
30
SSE
30
SSE
30
SSE
30
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		glasscrossglasscrosscrosscrosscrosscrosscross-
off		crosscrosscross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
11:51AM
0.25
12:33AM
0.66
12:59PM
0.30
1:16AM
0.70
1:38PM
0.35
1:51AM
0.74
Low Tide
/ height (m)
8:22AM
0.23
4:13PM
0.21
8:21AM
0.20
5:44PM
0.19
8:33AM
0.17
6:45PM
0.16
Thursday
12
Friday
13
Saturday
14
Sunday
15
Sunrise-------6:33-------6:33-------6:31
Sunset--6:31-------6:31-------6:32-----
thunderstorm
cloud
cloud
part cloud
cloud
cloud
light rain
cloud
light rain
light rain
mod rain
light rain
light rain
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
light rain
rain showers
rain showers
light rain
light rain
light rain
Rain (mm)
1-----4-13612281532111111
Temp. °C242626242424242526242326252524242525252525252526
Feels °C (?)232728262625242625212021202020212121222222222324
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kahalu'u Beach Park 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 Kahalu'u Beach Park at:
surf-forecast.com

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