Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Saturday 16 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waimanu Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanu Bay sea temperature is
25.6° C
(Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 5PM is: 1.6m 8s primary swell from a East direction and 0.4m 11s secondary swell from a North-northwest direction (forecast issued at 01:00pm May 16). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (16 May)6ft (1.9m)8s
Afternoon (16 May)7ft (2.1m)8s
Evening (16 May)6ft (1.9m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 27°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light.

Sat
16
Sunday
17
Monday
18
Tue
19
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
5 AM
8 AM
Rating
(10 max)
4
3
1
3
1
1
0
0
0
0
0
0
1
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)
2.3
E
8
2.1
E
8
1.6
E
8
1.9
E
8
1.7
E
8
1.7
E
8
1.6
E
8
1.5
E
8
1.6
E
8
1.7
ENE
8
1.7
ENE
8
1.8
ENE
8
1.9
E
8
1.9
ENE
8
1.8
ENE
8
1.8
ENE
8
1.8
ENE
8
1.9
ENE
8
1.8
ENE
8
1.7
E
8
1.6
E
8
1.6
E
8
1.7
E
8
1.6
E
8
Wave Graph
Metric surfscale
Energy kJ
719
603
349
505
396
403
349
316
358
422
422
459
500
497
448
448
437
485
427
383
334
334
377
334
Wind (km/h)
0
WSW
5
NW
10
NW
5
NNE
15
ESE
15
ESE
15
E
15
E
20
ENE
20
ENE
20
E
20
E
20
E
20
E
20
E
25
E
20
E
20
E
20
E
20
E
20
E
20
E
20
E
25
E
glassy
cross
cross
glassy
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
High Tide
3:24PM1.05m
2:27AM0.51m
4:09PM1.07m
3:09AM0.48m
4:57PM1.05m
3:53AM0.45m
Low Tide
10:08PM0.32m
8:39AM-0.04m
11:03PM0.32m
9:19AM-0.03m
00:02AM0.33m
clear
thunderstorm
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:45
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:52
6:52
1
1
Temp °C
28
27
26
25
25
24
24
25
26
26
26
25
24
24
24
25
25
25
25
24
24
24
24
24
32
30
28
29
27
26
25
26
27
27
27
26
24
24
25
25
25
26
26
24
24
24
24
23
Swell 1
Height (m)
Direction
Period (s)
1.9
E
8
1.9
E
8
1.6
E
8
1.6
E
8
0.4
NNW
11
0.4
NNW
11
1.6
E
8
0.4
NNW
11
0.4
NNW
10
0.4
NNW
10
0.4
NNW
10
0.4
NNW
10
0.4
NW
10
0.3
NNW
10
0.3
NNW
10
0.3
NNW
10
0.3
NNW
9
0.2
NNW
9
0.2
NNW
13
0.2
NNW
13
0.2
NNW
12
0.2
NNW
12
0.4
NW
12
0.4
NW
12
Energy kJ
488
477
349
351
47
47
349
44
43
43
42
39
25
19
19
18
17
8
18
17
15
14
37
37
Swell 2
Height (m)
Direction
Period (s)
0.5
NW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.1
NW
20
0.1
NW
20
0.2
NNW
19
0.2
NNW
18
0.2
NNW
18
0.2
NNW
17
0.2
NNW
16
0.2
NNW
16
0.2
NNW
15
0.2
NNW
15
0.2
NNW
14
0.2
NNW
9
0.2
NNW
9
0.2
NNW
9
0.2
NNW
9
0.1
NW
8
0.1
NW
8
Energy kJ
60
48
47
47
47
16
15
35
32
31
27
26
25
22
21
20
8
8
8
8
3
3
Swell 3
Height (m)
Direction
Period (s)
0.2
NNW
14
0.2
NNW
13
0.2
NNW
13
0.1
NW
13
0.1
S
11
0.1
N
21
0.1
NW
20
0.4
NNW
10
0.4
NNW
10
0.1
W
21
0.1
W
19
0.2
NNW
9
0.2
NNW
9
0.1
N
15
0.1
S
16
0.1
S
16
Energy kJ
19
18
18
7
2
9
16
42
42
9
7
8
8
4
5
5
Wind waves
Height (m)
Direction
Period (s)
2.3
E
8
2.1
E
8
1.9
E
8
1.7
E
8
1.7
E
8
1.5
E
8
1.6
E
8
1.7
ENE
8
1.7
ENE
8
1.8
ENE
8
1.9
E
8
1.9
ENE
8
1.8
ENE
8
1.8
ENE
8
1.8
ENE
8
1.9
ENE
8
1.8
ENE
8
1.7
E
8
1.6
E
8
1.6
E
8
1.7
E
8
1.6
E
8
Energy kJ
719
603
505
396
403
316
358
422
422
459
500
497
448
448
437
485
427
383
334
334
377
334
Nearest Offshore or Glassy
Rating
(10 max)
4
4
2
3
2
1
1
2
2
1
1
1
2
2
2
1
2
1
2
2
1
2
1
2
Distance (km)
0
6
12
0
29
66
66
69
77
107
24
66
68
74
69
70
98
24
98
81
98
98
66
66
Best forecast wave conditions in Big Island
Rating
(10 max)
4
4
2
3
2
2
2
2
2
1
2
2
2
2
2
1
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
4
4
3
4
2
2
9
2
4
1
5
7
4
4
5
4
4
4
4
4
4
4
4
3
Header Global
Rating
(10 max)
5
5
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
5
5
4
4
5
  • 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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