Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Saturday 09 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 3AM is: 1.0m 8s primary swell from a East direction and 0.6m 7s secondary swell from a North direction, 0.5m 11s secondary swell from a Northwest direction (forecast issued at 07:00pm May 09). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (10 May)3.5ft (1.1m)8s
Afternoon (10 May)4ft (1.2m)8s
Evening (10 May)3ft (0.9m)10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Sun morning, min 23°C on Sat night). Wind will be generally light.

Sat
9
Sunday
10
Monday
11
Tue
12
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
11 AM
2 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
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.8
NNW
11
0.8
NNW
11
1
E
8
1
E
8
1
E
8
1.1
E
8
1.1
E
8
1.2
E
8
0.8
NNW
11
0.8
NNW
10
0.9
NNW
10
0.9
NNW
10
0.8
NNW
10
1.1
E
8
1.1
E
8
0.9
NNW
12
0.8
NNW
11
0.8
NNW
11
1.1
E
8
1.2
E
8
1.1
E
8
1.2
E
7
1.3
E
7
1.4
E
7
Wave Graph
Metric surfscale
Energy kJ
133
130
124
130
133
157
152
176
148
125
187
187
139
141
148
237
152
152
148
177
137
155
166
209
Wind (km/h)
20
ENE
20
E
20
E
20
E
25
E
25
E
20
ENE
25
ENE
25
ENE
25
ENE
20
E
20
E
25
ENE
20
E
25
ENE
25
ENE
30
ENE
30
E
25
E
25
E
25
E
25
E
25
ENE
25
ENE
cross-on
cross-on
cross
cross-on
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
cross-on
cross-on
cross-on
cross-on
High Tide
9:16PM0.75m
10:44AM0.46m
10:08PM0.73m
11:48AM0.57m
10:55PM0.71m
12:35PM0.69m
Low Tide
5:01AM0.28m
3:09PM0.38m
5:25AM0.23m
4:52PM0.40m
5:51AM0.17m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:49
6:49
6:50
6:50
Temp °C
24
24
24
23
23
24
25
25
24
24
23
23
23
24
25
25
24
23
23
23
23
23
25
25
24
24
23
22
22
22
24
24
22
23
22
22
22
23
23
23
21
21
21
21
20
20
23
23
Swell 1
Height (m)
Direction
Period (s)
0.8
NNW
11
0.8
NNW
11
0.6
N
7
0.6
N
7
0.6
N
7
0.7
N
7
0.7
NNW
11
0.8
NNW
11
0.8
NNW
11
0.8
NNW
10
0.9
NNW
10
0.9
NNW
10
0.8
NNW
10
0.8
NNW
10
0.8
NNW
10
0.9
NNW
12
0.8
NNW
11
0.8
NNW
11
0.7
NNW
11
0.7
NNW
10
0.7
NNW
10
0.5
N
7
0.6
NNW
12
0.7
NNW
11
Energy kJ
133
130
32
32
33
43
113
140
135
125
187
187
139
139
131
237
135
130
99
97
97
25
115
111
Swell 2
Height (m)
Direction
Period (s)
0.1
NE
8
0.1
NE
8
0.5
NW
11
0.5
NW
11
0.6
NNW
11
0.6
NNW
12
0.6
N
7
0.6
N
6
0.5
N
6
0.4
NNW
6
0.3
NW
13
0.2
NNW
13
0.4
NNW
12
0.4
NW
12
0.4
NW
12
0.1
SE
12
0.4
NNE
6
0.4
NNE
6
0.3
NNE
6
0.2
N
14
0.5
NNE
5
0.5
NW
11
0.6
N
7
0.6
N
7
Energy kJ
3
3
56
57
87
93
31
29
19
14
28
18
60
38
37
6
13
12
7
16
17
55
36
34
Swell 3
Height (m)
Direction
Period (s)
0.1
N
9
0.1
N
9
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NE
8
0.1
NW
15
0.1
NW
15
0.3
NNE
5
0.1
N
9
0.1
N
8
0.1
N
9
0.1
SE
13
0.1
SE
12
0.2
NNE
6
0.1
N
15
0.3
NNW
14
0.4
NNW
13
0.1
NW
11
0.4
NW
11
Energy kJ
2
2
3
3
3
3
3
8
8
5
1
1
1
7
6
4
4
36
56
5
40
Wind waves
Height (m)
Direction
Period (s)
0.9
E
8
1.1
E
4
1
E
8
1
E
8
1
E
8
1.1
E
8
1.1
E
8
1.2
E
8
1.1
E
8
1
E
8
1
E
8
1.1
E
8
1.1
E
7
1.1
E
8
1.1
E
8
1.1
E
8
1.1
E
8
1.1
E
8
1.1
E
8
1.2
E
8
1.1
E
8
1.2
E
7
1.3
E
7
1.4
E
7
Energy kJ
102
42
124
130
133
157
152
176
148
116
116
144
130
141
148
152
152
152
148
177
137
155
166
209
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
98
68
70
98
58
66
77
77
58
72
66
66
66
58
58
98
66
66
66
66
66
68
77
58
Best forecast wave conditions in Big Island
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
4
4
2
2
2
2
4
3
3
3
3
2
2
2
3
3
3
3
3
2
2
2
Header Global
Rating
(10 max)
4
4
5
5
9
7
6
9
5
5
5
4
5
5
5
9
9
5
9
9
9
9
9
9
  • 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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