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

information circle48hr Weather and Surf, issued 7 pm Friday 13 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 4AM is: 2.0m 6s primary swell from a South direction and 0.7m 10s secondary swell from a West-northwest direction, 0.5m 8s secondary swell from a West direction (forecast issued at 07:00pm March 13). The wind direction is predicted to be cross-offshore.

Time (HST) & DateWave HeightWave Period
Morning (14 Mar)5.5ft (1.7m)6s
Afternoon (14 Mar)5ft (1.6m)8s
Evening (14 Mar)4.5ft (1.3m)8s

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


Updates in  hr  min  s Forecast update imminent
Friday
13
Saturday
14
Sunday
15
Monday
16
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
0
0
0
1
1
1
1
1
2
2
3
2
2
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.7
WNW
0.7
WNW
1.7
S
1.9
S
2
S
1.7
S
1.3
WSW
1.6
WSW
1.8
SW
1.4
WSW
1
WNW
1
WNW
1.3
WNW
1.8
W
2
W
2
W
2
W
2
W
2
W
2
W
2
W
1.9
W
1.8
W
1.7
W
Period(s) (?)10106666887899101010101010111111111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)102104178255308221223302365232173189328635818824818848900941941835736633
Wind
(km/h)
40
SSE
45
SSE
45
S
40
SSE
45
SSE
40
S
35
SSE
35
SSE
35
SSE
35
SSE
30
SSE
35
SSE
35
SSE
35
SSE
30
SSE
30
SSE
25
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
SSE
20
S
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross
High Tide
/ height (m)
1:16AM
0.70
1:38PM
0.35
1:51AM
0.74
2:12PM
0.42
2:23AM
0.75
Low Tide
/ height (m)
5:44PM
0.19
8:33AM
0.17
6:45PM
0.16
8:48AM
0.14
7:35PM
0.13
9:06AM
0.11
Friday
13
Saturday
14
Sunday
15
Monday
16
Sunrise-----6:33-------6:31-------6:31--
Sunset6:31-------6:32-------6:32-------
mod rain
light rain
thunderstorm
heavy rain
thunderstorm
thunderstorm
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
Rain (mm)
655151318655522359332111111
Temp. °C242424232323232423242524232423242425252525252526
Feels °C (?)202020191920202121222321202222222325252525262627
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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