Surf Forecast Surf Report

Shacks surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Friday 16 May 2025 HST
Forecast update in hr  min  s Forecast update imminent
Shacks surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shacks sea temperature is
25.1° C
(Which is normal for this time of year)


How big are the waves at Shacks today?

The current surf forecast for Shacks at 7PM is: 2.0m 8s primary swell from a East direction and 1.9m 8s secondary swell from a East direction (forecast issued at 01:00pm May 16). An open ocean swell of 0.5m 9s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (16 May)5ft (1.6m)8s
Afternoon (16 May)6.5ft (2.0m)8s
Evening (16 May)6.5ft (2.0m)8s

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

Updates in  hr  min  s Forecast update imminent
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
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
0
0
0
0
0
0
0
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
Wave Height (m) & direction (?)
1.7
E
2
E
2
E
2
E
2
E
1.6
ESE
1.6
ESE
1.5
ESE
1.5
ESE
2.2
E
2.3
E
2.2
E
2.1
E
2
E
1.9
E
1.9
E
1.9
E
1.9
E
1.9
E
1.9
E
1.8
E
1.8
E
1.8
E
1.7
E
1.7
E
1.6
E
1.7
E
1.6
E
1.7
E
1.6
E
1.6
E
1.6
E
1.5
E
1.5
E
1.5
E
1.6
E
1.6
E
1.5
E
1.4
E
1.4
E
1.1
ESE
1.1
NE
1.2
NE
1.5
ENE
1.5
ENE
1.5
ENE
1.6
ENE
1.6
ENE
1.6
E
1.6
E
1.5
E
1.6
ENE
1.7
ENE
1.6
ENE
1.6
ENE
1.6
ENE
1.6
ENE
1.6
E
1.6
ENE
1.6
ENE
Period(s) (?)888888888888888888888888888888888888888898888888888888888888
Wave
Graph
(?)Metric surfscale
Energy (?)337509522507503350322284291666727659597542477477476464476477428428417372372321364321355318314313263263263302299262228227172167196266273273322350349349316326380333376376367358326326
Wind
(km/h)
25
E
20
E
20
E
20
E
20
ESE
15
ESE
15
ESE
20
ESE
20
ESE
25
ESE
20
ESE
15
E
20
E
15
E
10
E
15
E
20
E
20
E
20
E
20
E
15
E
10
ENE
15
ENE
15
ENE
15
ENE
20
ENE
15
ENE
20
NE
15
NE
15
NE
15
NE
15
NE
15
NE
20
ENE
15
NE
15
NE
15
NE
10
NNE
10
ENE
15
NE
15
NE
20
NE
20
NE
15
NE
15
ENE
15
ENE
15
ENE
15
ENE
20
ENE
20
NE
20
NE
20
ENE
15
ENE
15
E
10
ENE
10
ENE
20
ENE
20
ENE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononononononononcross-
on
cross-
on
cross-
on
onononcross-
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
crosscrosscrosscross-
on
cross-
on
cross-
on
cross-
on
crosscross-
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
/ height (m)
6:11PM
0.92
5:12AM
0.44
7:01PM
0.89
6:25AM
0.41
7:56PM
0.87
8:21AM
0.42
8:55PM
0.85
10:12AM
0.50
9:53PM
0.82
11:25AM
0.62
10:48PM
0.79
12:19PM
0.76
11:39PM
0.75
1:06PM
0.90
Low Tide
/ height (m)
10:31AM
0.12
1:29AM
0.36
11:10AM
0.16
2:39AM
0.35
12:00PM
0.23
3:41AM
0.31
1:14PM
0.30
4:27AM
0.26
2:56PM
0.36
5:04AM
0.20
4:39PM
0.38
5:39AM
0.14
6:03PM
0.37
6:14AM
0.07
7:13PM
0.33
Friday
16
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise-------5:43-------5:43-------5:41-------5:41-------5:41-------5:41-------5:41----
Sunset--6:46-------6:47-------6:47-------6:47-------6:49-------6:49-------6:50-------6:50-
thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm clearthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm rain showersclearclearrain showersrain showersthunderstorm rain showersrain showersclearrain showersrain showersclearclearclearclearclearclearclearclearclearclearrain showersclearclearrain showersrain showersrain showersclearclearclearclearclearrain showersrain showersrain showerspart cloudclearclearclearrain showerslight rainrain showersclearthunderstorm thunderstorm thunderstorm clearthunderstorm
Rain (mm)
22221-1222222--12111-11----------1--111-----231----111-111-1
Temp. °C232424232323232323232423232323232324242323222323242424232323232324242423232223232424242323232323242424232323232323242423
Feels °C (?)222324222224232322222323222424232324242223232323242324232323242324242323242324232423232323232323242324232324242423232323
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>

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