Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Friday 29 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
25.8° C
(Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today (29 May):

  • Morning surf: Morning surf (29 May, local time) - 3.5ft (1.1m), 7s period with E swell.
  • Afternoon surf: Afternoon surf (29 May, local time) - 4.5ft (1.3m), 7s period with ENE swell.
  • Evening surf: Evening surf (29 May, local time) - 4.5ft (1.3m), 8s period with ENE swell.

The current surf forecast for Waimanu Bay at 10PM is: 0.9m 8s primary swell from a East direction and 0.8m 8s secondary swell from a Northeast direction, 0.6m 10s secondary swell from a North-northeast direction (forecast issued at 01:00pm May 29). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (29 May)3.5ft (1.1m)7s
Afternoon (29 May)4.5ft (1.3m)7s
Evening (29 May)4.5ft (1.3m)8s

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 Sat morning, min 23°C on Fri night). Wind will be generally light.

Fri
29
Saturday
30
Sunday
31
Mon
1
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
1
1
1
0
0
0
0
0
1
2
1
1
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)
1.4
ENE
7
1.4
ENE
7
1.3
ENE
8
1.3
ENE
8
0.9
E
8
1.3
ENE
8
1.4
ENE
8
1.5
ENE
8
1.4
ENE
8
1.4
ENE
8
1.3
ENE
8
1.3
ENE
8
1.2
ENE
8
1.1
ENE
8
0.9
NE
7
0.9
NE
7
0.9
NE
7
0.8
NE
7
0.9
NE
7
1.1
E
8
1.1
E
8
1.1
E
8
1.1
E
8
1.1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
197
203
191
202
93
176
204
234
226
232
202
207
173
147
89
75
77
66
79
149
149
149
149
155
Wind (km/h)
15
ENE
15
ENE
15
E
20
E
15
E
15
ESE
15
E
20
E
20
ENE
15
E
15
E
15
E
10
E
10
ESE
10
E
10
ENE
10
ENE
10
NE
10
ENE
10
ENE
5
ENE
5
NE
5
ENE
10
ENE
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
cross-on
cross-on
High Tide
2:38PM0.92m
1:31AM0.49m
3:10PM0.94m
2:05AM0.47m
3:43PM0.95m
2:37AM0.46m
Low Tide
9:24PM0.35m
7:42AM0.07m
10:01PM0.34m
8:13AM0.06m
10:37PM0.34m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
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>
6:57
6:57
6:58
6:58
Temp °C
25
24
24
23
23
23
23
24
25
25
24
24
23
23
23
24
25
25
25
24
24
23
23
24
25
25
25
23
23
24
23
24
25
26
24
25
24
25
25
26
27
27
27
26
27
26
26
26
Swell 1
Height (m)
Direction
Period (s)
0.7
N
11
0.6
N
11
0.6
N
11
0.6
N
10
0.8
NE
8
0.5
N
10
0.5
N
10
0.4
NNW
11
0.4
NNW
11
0.4
NNW
11
0.4
NNW
10
0.4
NNW
10
0.5
NNW
10
0.5
NNW
10
0.9
NE
7
0.9
NE
7
0.9
NE
7
0.8
NE
7
0.9
NE
7
1.1
E
8
1.1
E
8
1.1
E
8
1.1
E
8
1.1
ENE
8
Energy kJ
114
85
82
74
90
50
50
47
46
45
41
39
56
56
89
75
77
65
79
149
149
149
149
155
Swell 2
Height (m)
Direction
Period (s)
0.6
NNW
12
0.6
NNW
12
0.6
NNW
12
0.6
NNW
12
0.6
NNE
10
0.4
NNW
11
0.4
NNW
11
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.3
NNE
9
0.3
NNE
9
0.7
ESE
8
0.6
E
8
0.6
E
8
0.7
E
8
0.7
ESE
8
0.5
N
9
0.5
N
9
0.5
N
9
0.6
N
11
0.6
N
10
Energy kJ
93
90
88
90
78
49
47
33
31
31
31
31
17
16
63
45
46
66
70
41
41
41
85
78
Swell 3
Height (m)
Direction
Period (s)
0.7
NW
12
0.7
N
11
0.1
E
9
0.6
NNW
11
0.5
NW
12
0.5
NNE
10
0.5
N
10
0.5
N
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.5
NNW
10
0.5
NNW
10
0.5
NNW
10
0.5
NNW
10
0.5
N
10
0.5
N
9
0.4
NNW
9
0.3
NNW
11
0.3
NNW
11
0.3
NNW
11
Energy kJ
137
114
2
87
65
56
50
49
32
31
30
56
56
55
54
47
43
26
25
24
24
Wind waves
Height (m)
Direction
Period (s)
1.4
ENE
7
1.4
ENE
7
1.3
ENE
8
1.3
ENE
8
0.9
E
8
1.3
ENE
8
1.4
ENE
8
1.5
ENE
8
1.4
ENE
8
1.4
ENE
8
1.3
ENE
8
1.3
ENE
8
1.2
ENE
8
1.1
ENE
8
Energy kJ
197
203
191
202
93
176
204
234
226
232
202
207
173
147
Nearest Offshore or Glassy
Rating
(10 max)
2
3
3
2
3
3
3
3
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
3
Distance (km)
77
71
68
70
69
68
68
68
77
77
77
70
68
60
60
66
97
97
97
70
70
0
60
66
Best forecast wave conditions in Big Island
Rating
(10 max)
2
3
3
3
3
3
3
3
1
1
1
2
2
2
2
2
2
3
3
4
3
3
3
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
3
4
4
3
3
3
3
3
3
4
4
4
4
2
2
4
4
5
4
4
4
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
6
8
7
7
7
7
6
6
5
5
5
5
5
5
5
4
5
8
  • 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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