Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Tuesday 19 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
25.9° C
(Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 9PM is: 1.8m 8s primary swell from a East direction and 0.4m 12s secondary swell from a North-northwest direction, 0.1m 15s secondary swell from a Southeast direction (forecast issued at 01:00pm May 19). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (19 May)5ft (1.6m)8s
Afternoon (19 May)6ft (1.9m)8s
Evening (19 May)6ft (1.8m)8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 26°C on Tue afternoon, min 22°C on Thu night). Mainly fresh winds.

Tue
19
Wednesday
20
Thursday
21
Fri
22
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)
0
0
0
0
0
1
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)
1.7
E
8
1.9
E
8
1.9
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.8
E
8
2
E
8
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.3
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.3
ENE
9
2.3
ENE
9
2.2
ENE
9
2.1
ENE
9
Wave Graph
Metric surfscale
Energy kJ
383
464
464
439
450
412
461
576
676
724
741
741
708
708
692
727
809
744
744
767
793
793
730
656
Wind (km/h)
20
E
25
E
25
E
25
E
25
E
25
E
25
E
30
E
30
E
30
ENE
30
E
35
E
30
E
30
E
30
E
30
E
30
ENE
30
E
35
ENE
35
ENE
30
E
25
E
25
E
30
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:46PM1.01m
4:45AM0.42m
6:38PM0.95m
5:56AM0.39m
7:31PM0.88m
7:44AM0.40m
Low Tide
10:02AM0.01m
1:05AM0.33m
10:46AM0.08m
2:13AM0.32m
11:36AM0.17m
3:16AM0.30m
clear
part cloud
thunderstorm
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:52
6:52
6:53
6:53
1
Temp °C
26
26
25
24
24
24
23
24
25
25
24
24
23
23
23
24
24
25
24
23
23
22
22
23
26
26
25
23
24
24
22
22
23
23
22
21
21
21
21
22
21
22
21
19
20
19
19
20
Swell 1
Height (m)
Direction
Period (s)
0.2
NNW
13
0.4
NW
11
0.4
NNW
11
0.4
NNW
12
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
12
0.5
NNW
12
0.4
NNW
12
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.3
NNW
10
0.3
NNW
10
0.3
NNW
10
0.2
NNW
10
0.2
NNW
10
0.2
NNW
10
0.2
NNW
10
0.2
NNW
9
Energy kJ
17
31
51
54
51
47
47
48
55
79
53
46
46
45
45
44
21
20
19
10
9
9
9
8
Swell 2
Height (m)
Direction
Period (s)
0.2
NNW
11
0.1
N
8
0.1
SE
15
0.1
SE
15
0.5
NW
11
0.2
N
13
0.2
NNW
13
0.1
SE
15
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.1
SE
14
0.2
SSE
14
0.1
SE
13
0.2
SSE
13
0.2
SSE
13
0.2
SSE
13
0.2
SSE
13
0.2
SSE
13
0.2
SSE
12
0.1
SE
12
0.2
NNW
10
0.1
NW
11
Energy kJ
12
1
9
9
61
14
17
8
8
8
8
8
7
18
7
17
17
17
16
16
15
6
9
5
Swell 3
Height (m)
Direction
Period (s)
0.1
N
8
0.1
SE
15
0.1
SE
16
0.3
NNW
13
0.1
SE
12
0.1
SE
12
Energy kJ
1
9
10
34
6
6
Wind waves
Height (m)
Direction
Period (s)
1.7
E
8
1.9
E
8
1.9
E
8
1.8
E
8
1.8
E
8
1.7
E
8
1.8
E
8
2
E
8
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.3
ENE
9
2.2
ENE
9
2.2
ENE
9
2.2
ENE
9
2.3
ENE
9
2.3
ENE
9
2.2
ENE
9
2.1
ENE
9
Energy kJ
383
464
464
439
450
412
461
576
676
724
741
741
708
708
692
727
809
744
744
767
793
793
730
656
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
1
1
2
2
1
1
1
1
1
1
2
1
2
1
2
1
1
1
1
1
Distance (km)
98
134
98
66
70
58
66
77
101
58
107
58
66
58
68
58
66
134
66
66
58
58
58
58
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
2
2
2
1
2
2
2
2
1
2
2
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
3
1
4
4
4
3
3
4
1
1
4
3
3
3
3
1
3
1
2
3
4
3
3
2
Header Global
Rating
(10 max)
4
5
5
5
5
4
4
5
5
5
5
5
5
5
4
4
4
4
5
7
7
7
7
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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