Kiholo Bay surfForecast / HAW – Big Island / USA

information circle16 Day Weather and Surf, issued 1 am Saturday 16 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
26.0° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Kiholo Bay this week:

The most powerful waves expected at Kiholo Bay in the next 16 days are 0.3m 19s and forecast to arrive on Monday (May 18) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Wednesday (May 20) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Mon 18th May)1ft (0.3m) 19s

Table - best surf conditions forecast for Kiholo Bay over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat night. Warm (max 27°C on Sat morning, min 25°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Tue afternoon. Warm (max 27°C on Tue morning, min 24°C on Tue night). Wind will be generally light.

Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
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 Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SW
15
0.3
SW
14
0.6
NE
8
0.3
SW
14
0.3
SW
14
0.3
SW
14
0.9
NE
7
0.1
SW
19
0.4
ENE
7
0.7
NE
6
0.1
SW
14
0.3
SSW
14
0.3
SSW
14
1
NE
7
0.2
N
11
0.8
NNE
6
0.1
SW
14
0.1
N
10
0.1
N
9
0.8
NNE
8
1.1
NE
8
Wave Graph
Metric surfscale
Energy kJ
33
33
0
33
32
30
0
15
0
0
7
0
0
0
9
0
8
2
2
0
0
Wind (km/h)
15
WSW
15
NW
0
WSW
10
WNW
5
WSW
5
NE
10
W
5
W
5
NE
10
NNW
5
N
10
NE
10
NNW
5
N
10
NE
15
N
20
NNE
15
NE
10
N
15
NNE
10
NE
cross-on
cross-on
glassy
on
cross-on
glassy
on
glassy
glassy
cross-on
glassy
cross-off
cross-on
glassy
cross-off
cross
cross
cross-off
cross
cross
cross-off
High Tide
3:59PM0.93m
3:35AM0.35m
4:45PM0.94m
4:23AM0.31m
5:34PM0.92m
5:16AM0.29m
6:25PM0.88m
6:22AM0.27m
7:19PM0.82m
7:49AM0.28m
8:14PM0.75m
9:35AM0.33m
9:10PM0.68m
Low Tide
8:37AM-0.03m
11:05PM0.15m
9:15AM-0.03m
00:02AM0.15m
9:56AM-0.01m
1:02AM0.15m
10:40AM0.03m
2:04AM0.16m
11:29AM0.09m
3:06AM0.15m
12:27PM0.16m
4:01AM0.14m
1:46PM0.25m
4:46AM0.13m
clear
clear
thunderstorm
clear
part cloud
clear
clear
thunderstorm
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:47
5:46
5:46
5:46
5:46
5:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:53
6:53
6:53
6:54
1
1
1
Temp °C
27
26
25
27
27
26
27
27
26
27
27
25
27
27
25
26
26
25
26
26
24
29
28
28
30
29
30
30
30
29
29
30
26
28
28
26
26
25
25
26
25
24
Swell 1
Height (m)
Direction
Period (s)
0.7
NE
8
0.7
NE
8
0.6
NE
8
0.6
NE
8
0.6
NNE
5
0.9
NE
7
0.9
NE
7
1
NE
6
0.5
NNE
5
0.7
NE
6
0.9
NE
6
0.4
NE
8
0.7
NE
6
1
NE
7
0.2
SSW
13
0.5
NE
8
0.5
NE
8
0.2
SSW
15
0.2
SSW
14
0.8
NNE
8
0.2
S
16
Energy kJ
64
62
49
51
18
67
73
75
15
31
64
15
33
91
17
34
35
21
20
84
21
Swell 2
Height (m)
Direction
Period (s)
0.3
SW
15
0.3
SW
14
0.2
SSW
14
0.3
SW
14
0.5
NE
8
0.3
SW
14
0.2
SSW
19
0.2
SSW
13
0.4
ENE
7
0.4
NE
7
0.2
SSW
14
0.3
SSW
14
0.5
NE
8
0.4
ENE
9
0.2
SSW
16
0.2
SSW
13
0.2
S
15
0.1
N
10
0.1
S
18
0.6
NE
6
0.2
SSW
13
Energy kJ
33
33
20
33
32
30
37
17
20
14
20
41
28
31
26
16
18
2
6
24
17
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
11
0.1
NW
11
0.2
SSW
17
0.2
SSW
16
0.3
SW
14
0.1
S
14
0.2
SSW
13
0.1
SW
19
0.2
SSW
13
0.2
SSW
14
0.1
SW
14
0.2
NNE
6
0.3
SSW
14
0.2
SSW
13
0.2
N
11
0.1
S
16
0.1
SW
14
0.1
S
12
0.1
N
9
0.2
SSW
14
Energy kJ
5
5
28
24
32
4
17
15
18
19
7
3
37
18
9
5
8
3
2
19
Wind waves
Height (m)
Direction
Period (s)
0.6
NNE
5
1.1
NE
8
0.8
NNE
6
0.9
NNE
6
1.1
NE
8
1.1
NE
8
1.1
NE
8
Energy kJ
15
153
51
56
167
154
158
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
2
2
2
2
2
2
2
1
1
3
1
2
2
1
1
1
1
1
Distance (km)
90
44
22
94
43
27
99
94
22
99
102
22
94
14
26
22
22
14
14
14
14
Best forecast wave conditions in Big Island
Rating
(10 max)
3
3
2
2
2
3
2
2
2
3
1
2
2
2
2
1
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
3
2
7
4
5
4
4
4
3
1
4
4
1
3
3
2
3
2
2
2
Header Global
Rating
(10 max)
5
4
6
7
4
5
4
4
4
4
4
4
9
9
9
7
5
4
5
4
4
  • 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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Information about the Kiholo Bay Surf forecast

The above surf forecast table for Kiholo Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kiholo Bay can be found by selecting the local surf guide option on the grey menu. Our Kiholo Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Kiholo Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Kiholo Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Kiholo Bay is 89 km (55 miles) from Hilo. If you plan a vacation in Big Island, look for hotels and other accommodation in Hilo. Hilo has rooms for a wide range of budgets as well as car hire and transport links.

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