Kiholo Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 am Thursday 21 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Kiholo Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kiholo Bay sea temperature is
26.5° C
(Which is 1.3°C warmer than normal for this time of year)

How big are the waves at Kiholo Bay today?

The current surf forecast for Kiholo Bay at 2PM is: 0.1m 13s primary swell from a Southwest direction (forecast issued at 07:00am May 21). An open ocean swell of 0.2m 16s is not directed at the surf break, a second open ocean swell of 1.1m 8s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (21 May)0.5ft (0.1m)14s
Afternoon (21 May)0.5ft (0.1m)13s
Evening (21 May)0.5ft (0.1m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 23°C on Thu night). Wind will be generally light.

Thursday
21
Friday
22
Saturday
23
Sun
24
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
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.1
SW
13
0.1
SW
14
0.1
N
11
0.1
SW
13
0.1
SW
14
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
1.2
NE
8
0.1
N
10
0.1
N
11
0.1
SW
13
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
16
0.1
NW
16
0.1
NW
15
0.1
NW
15
Wave Graph
Metric surfscale
Energy kJ
7
8
2
6
8
2
2
2
2
2
2
0
2
2
7
5
5
5
5
4
10
10
9
8
Wind (km/h)
15
NE
15
NE
15
NNE
15
NNE
20
NNE
15
NNE
15
NE
15
NE
15
NE
15
NE
15
NNE
15
NNE
15
NNE
15
NE
10
NE
10
NE
15
NE
10
NE
15
NNE
20
NNE
20
NE
15
NE
10
NE
10
NE
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross
cross-off
High Tide
7:49AM0.28m
8:14PM0.75m
9:35AM0.33m
9:10PM0.68m
11:06AM0.41m
10:06PM0.61m
Low Tide
3:06AM0.15m
12:27PM0.16m
4:01AM0.14m
1:46PM0.25m
4:46AM0.13m
3:32PM0.31m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:46
5:45
5:45
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:53
6:54
6:54
6:55
Temp °C
25
25
27
26
26
25
24
23
23
24
25
25
25
24
24
23
23
24
26
25
25
24
24
23
26
25
27
25
25
25
25
23
22
23
24
25
24
24
24
23
23
24
25
23
24
24
25
24
Swell 1
Height (m)
Direction
Period (s)
0.2
S
16
0.2
S
16
0.2
SSW
13
0.2
S
16
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
15
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
S
16
0.2
S
16
0.2
S
16
0.2
S
13
0.2
S
16
0.2
S
13
0.2
SSW
15
0.2
SSW
15
1.3
NNE
9
1.2
NNE
9
Energy kJ
20
20
16
19
22
21
21
21
21
21
20
19
18
18
21
21
20
14
20
14
23
21
252
202
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
13
0.1
SW
14
0.1
S
16
0.1
SW
13
0.1
SW
14
0.1
N
10
0.1
S
12
0.1
S
12
0.1
S
12
0.1
S
19
0.1
S
18
0.1
S
18
0.1
S
18
0.1
S
17
0.1
SW
13
0.2
SSW
13
0.2
S
13
0.2
S
16
0.1
S
13
0.1
S
16
0.1
NW
16
0.1
NW
16
0.2
SSW
15
0.2
S
14
Energy kJ
7
8
5
6
8
2
3
3
3
7
6
6
6
6
7
17
14
20
3
5
10
10
21
16
Swell 3
Height (m)
Direction
Period (s)
0.1
N
11
0.1
S
13
0.1
N
11
0.1
N
10
0.1
N
10
0.1
S
12
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
N
10
0.1
S
11
0.1
N
10
0.1
N
11
0.1
N
11
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
11
0.1
NW
10
0.1
NW
10
0.1
NW
15
0.1
NW
15
Energy kJ
2
3
2
2
2
3
2
2
2
2
2
2
2
2
2
5
5
5
5
4
4
4
9
8
Wind waves
Height (m)
Direction
Period (s)
1.1
NE
7
1.2
NE
8
1.1
NE
8
1.1
NE
8
1.1
NE
8
1.3
NE
8
1.3
NE
9
1.2
NE
8
1.1
NE
9
1.1
NE
9
1.2
NE
9
1.2
NE
8
1.2
NNE
8
1.2
NNE
9
1.2
NE
9
1.1
NE
9
1.2
NE
8
1.2
NE
9
1.2
NE
9
1.3
NNE
9
1.5
NNE
9
1.5
NNE
9
Energy kJ
137
177
171
176
184
232
238
211
193
193
216
206
188
197
231
193
206
216
221
258
354
354
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
2
1
1
Distance (km)
14
14
111
102
22
22
14
14
22
26
111
22
24
14
14
26
14
14
111
450
22
14
14
14
Best forecast wave conditions in Big Island
Rating
(10 max)
1
1
2
2
1
2
2
2
1
2
2
2
2
2
2
2
2
1
2
Best forecast wave conditions in United States
Rating
(10 max)
3
1
2
1
2
2
3
3
2
2
3
3
2
2
2
3
2
2
3
2
2
2
3
2
Header Global
Rating
(10 max)
5
5
5
4
5
7
7
7
6
6
6
5
6
7
8
8
7
6
5
5
5
5
6
6
  • 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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