Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Sunday 31 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 normal for this time of year)

How big are the waves at Waimanu Bay today (31 May):

  • Morning surf: Morning surf (31 May, local time) - 3ft (0.9m), 7s period with NE swell.
  • Afternoon surf: Afternoon surf (31 May, local time) - 3ft (0.9m), 8s period with ESE swell.
  • Evening surf: Evening surf (31 May, local time) - 4.5ft (1.4m), 8s period with E swell.

The current surf forecast for Waimanu Bay at 5AM is: 0.9m 7s primary swell from a Northeast direction and 0.7m 8s secondary swell from a East-southeast direction (forecast issued at 01:00am May 31). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (31 May)3ft (0.9m)7s
Afternoon (31 May)3ft (0.9m)8s
Evening (31 May)4.5ft (1.4m)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 9mm), mostly falling on Sun afternoon. Warm (max 26°C on Mon morning, min 24°C on Sun morning). Wind will be generally light.

Sunday
31
Monday
1
Tuesday
2
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)
1
1
1
1
0
0
0
1
1
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
ESE
8
0.9
NE
7
0.9
NE
7
0.8
E
8
0.9
ESE
8
1.3
E
8
1.4
E
8
1.4
E
8
1.3
E
8
1.2
ENE
8
1.3
ENE
8
1.4
ENE
7
1.4
ENE
7
1.3
ENE
7
1.3
ENE
7
1.2
ENE
7
1.1
ENE
7
1.1
ENE
7
1.1
E
7
1.1
ENE
7
1
ENE
7
1.2
E
7
1.6
E
5
1.7
E
7
Wave Graph
Metric surfscale
Energy kJ
110
86
91
76
107
201
233
233
196
173
202
199
183
158
158
139
136
136
127
125
105
138
136
255
Wind (km/h)
5
ESE
10
ESE
10
E
10
ENE
15
ENE
15
E
15
E
15
E
15
E
15
ENE
15
E
15
ENE
15
ENE
15
ENE
15
E
15
E
15
E
10
E
15
E
15
ENE
20
ENE
20
E
20
E
25
E
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
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
High Tide
2:05AM0.47m
3:43PM0.95m
2:37AM0.46m
4:17PM0.94m
3:08AM0.45m
4:52PM0.92m
Low Tide
8:13AM0.06m
10:37PM0.34m
8:44AM0.06m
11:15PM0.34m
9:16AM0.07m
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
clear
rain showers
rain showers
thunderstorm
rain showers
clear
rain showers
rain showers
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:58
6:58
1
1
1
1
1
1
1
1
1
Temp °C
24
23
24
25
25
25
24
24
24
24
24
26
26
25
25
24
24
24
25
26
26
26
25
24
27
25
26
27
27
26
25
26
26
26
25
27
28
26
27
26
26
26
26
27
27
27
26
24
Swell 1
Height (m)
Direction
Period (s)
1
NE
7
0.9
NE
7
0.9
NE
7
0.8
E
8
0.9
ESE
8
0.4
NNW
9
0.5
N
9
0.5
N
9
0.5
N
9
0.6
N
11
0.5
N
10
0.5
N
10
0.5
N
10
0.5
N
10
1.3
ENE
7
1.2
ENE
7
1.1
ENE
7
0.4
NNW
9
0.4
NNW
9
0.4
NNW
9
0.4
NNW
13
0.5
N
12
0.6
NNW
12
0.7
NNW
11
Energy kJ
107
86
91
76
107
26
41
41
41
85
55
50
50
49
158
139
136
27
27
26
56
76
111
130
Swell 2
Height (m)
Direction
Period (s)
0.7
ESE
8
0.7
ESE
8
0.7
ESE
8
0.5
N
10
0.5
N
9
0.3
NNW
10
0.3
NNW
11
0.3
NNW
11
0.3
NNW
11
0.6
N
11
0.1
E
11
0.1
E
11
0.5
N
10
0.5
N
10
0.5
N
9
0.5
N
9
0.1
NW
13
0.1
N
14
0.2
N
14
0.4
NNW
9
0.4
NNW
9
0.3
NNW
9
0.2
NNW
8
Energy kJ
62
63
63
47
44
20
25
24
24
85
2
2
49
48
45
42
6
4
15
26
26
15
6
Swell 3
Height (m)
Direction
Period (s)
0.5
NNW
10
0.5
NNW
10
0.5
NNW
10
0.2
NNE
9
0.2
N
12
0.1
N
9
0.3
NNW
11
0.3
NNW
11
0.1
NE
11
0.1
NE
10
0.1
NE
10
0.1
NW
13
0.1
N
7
0.1
NW
13
0.1
NW
12
0.4
NNW
13
0.1
NE
9
Energy kJ
56
55
54
8
11
2
24
24
4
4
4
7
1
6
6
56
3
Wind waves
Height (m)
Direction
Period (s)
0.9
ESE
8
0.8
NE
7
0.9
NE
8
1.3
E
8
1.4
E
8
1.4
E
8
1.3
E
8
1.2
ENE
8
1.3
ENE
8
1.4
ENE
7
1.4
ENE
7
1.3
ENE
7
1.1
ENE
7
1.1
E
7
1.1
ENE
7
1
ENE
7
1.2
E
7
1.6
E
5
1.7
E
7
Energy kJ
110
71
94
201
233
233
196
173
202
199
183
158
136
127
125
105
138
136
255
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
2
2
2
2
2
2
2
3
1
2
3
1
4
1
4
3
1
4
1
2
1
Distance (km)
25
61
69
98
97
66
70
61
60
60
69
77
77
81
70
68
70
69
66
77
98
24
74
74
Best forecast wave conditions in Big Island
Rating
(10 max)
2
2
2
2
2
2
3
3
2
3
3
3
2
3
1
4
1
4
4
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
4
4
2
2
4
3
4
4
4
4
3
3
3
4
4
4
3
4
4
4
4
3
3
3
Header Global
Rating
(10 max)
6
6
5
5
5
5
5
5
4
5
5
5
5
5
5
5
4
4
4
5
4
4
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)
Map placeholder

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