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

information circle48hr Weather and Surf, issued 7 pm Wednesday 22 Apr 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
25.6° 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 1AM is: 0.8m 14s primary swell from a West direction and 0.3m 12s secondary swell from a Southwest direction, 0.3m 11s secondary swell from a South direction (forecast issued at 07:00pm April 22). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (23 Apr)2.5ft (0.7m)13s
Afternoon (23 Apr)2.5ft (0.7m)13s
Evening (23 Apr)1.5ft (0.5m)16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Sat afternoon. Warm (max 26°C on Thu afternoon, min 24°C on Wed night). Wind will be generally light.

Wed
22
Thursday
23
Friday
24
Sat
25
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
Rating
(10 max)
0
2
1
1
1
0
0
1
1
1
1
1
1
2
1
1
1
1
2
1
2
2
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span><span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.8
WNW
14
0.8
W
14
0.7
W
14
0.8
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.5
WNW
16
0.6
W
13
0.5
WNW
15
0.6
WNW
15
0.6
WNW
15
0.7
WNW
14
0.7
WNW
13
0.7
WNW
13
0.7
WNW
13
0.7
WNW
13
0.6
WNW
12
0.6
WNW
12
0.6
WNW
12
0.5
SW
16
0.5
SW
16
Wave Graph
Metric surfscale
Energy kJ
269
250
181
229
173
171
168
168
168
147
128
123
167
167
215
184
181
181
173
117
115
111
118
121
Wind (km/h)
10
NW
5
WSW
15
S
10
SSW
5
WNW
15
NNW
15
WNW
10
W
5
SSW
10
S
10
SSW
5
WNW
10
NW
5
NW
5
W
5
WSW
5
SW
5
WSW
5
WSW
5
W
5
NNW
5
SW
10
SW
15
SW
cross-on
glassy
cross
cross-on
cross-on
cross-on
cross-on
on
cross
cross
cross
cross-on
cross-on
glassy
on
cross-on
cross-on
on
glassy
glassy
glassy
glassy
cross-on
cross-on
High Tide
8:48PM0.75m
9:43AM0.26m
10:01PM0.71m
11:36AM0.33m
11:08PM0.67m
12:38PM0.42m
Low Tide
5:05AM0.18m
1:51PM0.20m
5:57AM0.15m
3:49PM0.25m
6:33AM0.13m
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
5:58
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:44
6:44
6:44
Temp °C
25
25
24
24
24
25
25
26
25
24
24
24
24
24
26
25
25
24
24
24
24
24
25
25
27
29
26
27
27
27
26
28
28
27
27
27
26
27
28
28
28
27
27
27
27
26
26
26
Swell 1
Height (m)
Direction
Period (s)
0.8
WNW
14
0.8
W
14
0.7
W
14
0.8
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.7
W
13
0.6
W
13
0.6
W
13
0.5
WNW
15
0.6
WNW
15
0.6
WNW
15
0.7
WNW
14
0.7
WNW
13
0.7
WNW
13
0.7
WNW
13
0.7
WNW
13
0.6
WNW
12
0.6
WNW
12
0.6
WNW
12
0.6
WNW
12
0.6
WNW
11
Energy kJ
269
250
181
229
173
171
168
168
168
125
128
123
167
167
215
184
181
181
173
117
115
111
107
102
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
12
0.3
SW
12
0.3
SW
12
0.3
SW
12
0.3
WNW
18
0.4
WNW
18
0.4
WNW
18
0.4
WNW
17
0.5
WNW
16
0.5
WNW
16
0.4
WNW
16
0.5
W
12
0.5
W
12
0.5
W
12
0.3
SW
13
0.3
SW
13
0.3
SW
13
0.4
SW
13
0.4
SW
13
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.5
SW
16
0.5
SW
16
Energy kJ
38
23
23
22
62
104
103
99
147
147
86
76
78
76
28
28
28
45
44
65
63
85
118
121
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
10
0.3
NW
11
0.3
NW
11
0.3
WNW
19
0.3
SW
12
0.3
SW
12
0.3
SW
12
0.3
SW
12
0.3
SW
12
0.2
SSW
11
0.2
SSW
15
0.3
SW
14
0.3
SW
13
0.3
SW
13
0.2
SSW
13
0.2
SSW
13
0.2
S
13
0.2
SSW
16
0.2
SSW
16
0.2
S
12
0.3
SSW
12
0.3
SSW
12
0.3
SSW
12
0.2
S
12
Energy kJ
10
19
19
72
22
22
22
22
21
13
21
31
28
28
17
17
14
26
27
12
29
29
28
11
Wind waves
Height (m)
Direction
Period (s)
0.3
S
11
0.4
NW
2
0.2
WNW
8
0.3
NW
9
Energy kJ
21
2
7
12
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
1
2
2
2
2
1
2
2
2
2
1
2
1
2
2
1
1
Distance (km)
52
0
1
13
2
6
52
52
11
1
13
11
32
0
11
11
11
13
0
0
0
0
52
52
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
3
3
3
3
2
4
3
3
3
2
2
2
4
3
2
2
2
2
3
3
3
Header Global
Rating
(10 max)
6
6
5
5
5
5
5
5
5
5
6
5
5
5
4
5
5
4
4
5
4
4
5
4
  • 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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