Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Monday 11 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
25.7° C
(Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 6AM is: 0.8m 10s primary swell from a North-northwest direction and 0.4m 12s secondary swell from a North-northwest direction, 1.0m 8s secondary swell from a East direction (forecast issued at 01:00am May 11). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (11 May)2.5ft (0.8m)10s
Afternoon (11 May)3ft (0.9m)11s
Evening (11 May)4ft (1.2m)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 Wed night. Warm (max 25°C on Mon morning, min 22°C on Mon night). Mainly fresh winds.

Monday
11
Tuesday
12
Wednesday
13
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
5 PM
8 PM
11 PM
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
Wave
Height (m)
Direction
Period (s)
0.9
NNW
10
0.8
NNW
10
0.8
NNW
10
1.1
E
8
0.9
NNW
12
1.2
E
8
1.2
ENE
8
1.3
ENE
8
1.2
E
8
1.1
E
7
1.2
E
7
1.4
E
6
1.6
E
6
1.5
E
7
1.4
E
7
1.5
E
7
1.4
E
7
1.4
E
7
1.5
E
7
1.6
E
7
1.8
E
7
1.8
E
8
1.7
E
8
1.7
E
8
Wave Graph
Metric surfscale
Energy kJ
187
139
139
156
193
190
192
218
163
126
143
132
193
214
199
225
198
203
233
262
348
377
355
355
Wind (km/h)
20
E
25
E
25
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
E
25
E
25
E
25
E
25
ENE
25
ENE
30
E
30
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
25
E
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
11:48AM0.57m
10:55PM0.71m
12:35PM0.69m
11:40PM0.68m
1:17PM0.81m
Low Tide
5:25AM0.23m
4:52PM0.40m
5:51AM0.17m
6:12PM0.39m
6:19AM0.10m
7:19PM0.37m
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:47
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:50
6:50
6:50
Temp °C
23
23
24
25
25
24
23
23
22
22
23
25
24
24
23
23
23
23
24
25
25
24
23
23
22
22
22
23
23
23
21
21
19
19
20
23
22
22
20
21
20
21
22
24
24
23
22
20
Swell 1
Height (m)
Direction
Period (s)
0.9
NNW
10
0.8
NNW
10
0.8
NNW
10
0.7
N
9
0.9
NNW
12
0.8
NNW
11
0.8
NNW
11
0.7
NNW
11
0.7
NNW
10
0.7
NNW
10
0.6
NNW
11
0.6
NNW
12
0.8
NNW
11
0.8
NNW
11
0.8
NNW
10
0.8
NNW
10
0.7
NNW
10
0.7
NNW
10
0.5
NNW
10
0.5
NNW
10
0.4
NNW
9
0.4
NNW
9
0.5
NNW
9
0.4
NNW
9
Energy kJ
187
139
139
83
193
135
130
99
97
97
88
113
143
133
123
116
86
86
55
55
34
34
49
28
Swell 2
Height (m)
Direction
Period (s)
0.2
NNW
13
0.4
NNW
12
0.4
NW
12
0.6
NNW
12
0.1
SE
12
0.1
SE
12
0.1
N
15
0.5
NNE
5
0.5
NNE
6
0.4
NNW
13
0.5
N
7
0.4
NNW
7
0.4
N
7
0.5
NNE
6
0.2
N
13
0.2
N
13
0.2
N
12
0.3
N
12
0.2
N
12
0.3
N
10
0.3
N
10
0.1
N
12
0.4
NW
9
Energy kJ
18
60
38
94
6
6
4
16
17
56
24
15
14
18
14
13
12
24
12
18
17
3
21
Swell 3
Height (m)
Direction
Period (s)
0.1
N
8
0.1
N
9
0.1
N
8
0.1
SE
12
0.2
N
14
0.3
NNW
14
0.1
NW
11
0.5
N
7
0.4
N
7
0.2
N
13
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
SE
11
0.1
N
20
0.1
NW
19
0.1
NW
18
Energy kJ
1
2
1
6
16
36
5
22
14
14
5
5
5
5
7
14
13
Wind waves
Height (m)
Direction
Period (s)
1
E
8
1
E
8
1
E
8
1.1
E
8
1.1
E
8
1.2
E
8
1.2
ENE
8
1.3
ENE
8
1.2
E
8
1.1
E
7
1.2
E
7
1.4
E
6
1.6
E
6
1.5
E
7
1.4
E
7
1.5
E
7
1.4
E
7
1.4
E
7
1.5
E
7
1.6
E
7
1.8
E
7
1.8
E
8
1.7
E
8
1.7
E
8
Energy kJ
119
125
129
156
156
190
192
218
163
126
143
132
193
214
199
225
198
203
233
262
348
377
355
355
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
2
1
1
1
1
1
1
1
Distance (km)
58
58
66
58
58
58
66
58
58
58
72
58
77
66
72
66
70
66
72
77
101
66
66
58
Best forecast wave conditions in Big Island
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
2
2
2
1
1
1
1
2
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
2
2
3
3
3
3
3
2
1
2
3
3
2
4
3
1
1
2
1
4
4
Header Global
Rating
(10 max)
4
5
9
5
5
9
5
9
9
8
9
9
8
6
8
7
6
6
9
9
5
9
5
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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