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Surf Forecasts

Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 pm Friday 18 Apr 2025 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
25.2° C
 (Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 8PM is: 1.1m 12s primary swell from a North-northwest direction and 0.7m 7s secondary swell from a East-northeast direction, 0.9m 7s secondary swell from a East-southeast direction (forecast issued at 01:00pm April 18). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (18 Apr)3.5ft (1.1m)13s
Afternoon (18 Apr)3.5ft (1.1m)12s
Evening (18 Apr)3.5ft (1.1m)12s

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

Hourly12 Days
Big Island Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
2
2
1
1
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
2
0
0
0
0
0
0
2
2
1
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
NNW
1.1
NNW
1.1
NNW
1.1
NNW
1
NNW
1
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
0.9
NNW
1.4
ENE
1.8
ENE
1.7
E
1.3
E
0.8
NNW
1
NE
1
NE
0.9
NE
1.5
ENE
1.6
ENE
1.5
E
0.9
NE
1.3
ESE
1
ESE
1.1
ESE
1.1
ESE
1
ESE
0.9
ESE
1
E
1.1
E
1.4
ESE
1.4
ESE
1.5
ESE
1.3
ESE
1.4
ESE
1.8
E
1.8
E
2
ESE
1.9
ESE
1.4
ESE
1.1
ESE
1.4
ESE
1.1
ESE
1.8
E
2
E
1.9
ESE
1.5
ESE
1.2
ESE
1.4
ESE
1.4
ESE
1.1
ESE
1.3
ESE
1.2
ESE
1.2
ESE
Period(s) (?)13121212121212111212121212121212888811888888858888888577776666668766666887688
Wave
Graph
(?)Metric surfscale
Energy (?)408371359328269260233229237237242250248240240240251395346191167123126104246280272109931331571461169912114910917518715717523524328226311983213114221293263167123219224140121173178
Wind
(km/h)
5
ENE
5
ENE
10
E
15
E
20
ESE
20
E
20
E
15
E
15
E
15
E
15
E
15
E
15
E
15
E
15
E
15
E
15
ENE
20
E
20
E
20
E
15
E
15
E
15
E
15
E
15
ENE
15
E
15
E
15
E
15
E
10
ESE
10
ESE
5
ESE
10
E
15
E
15
E
15
ESE
15
ESE
10
SE
10
SE
10
ESE
15
E
20
E
20
E
20
ESE
15
ESE
15
ESE
10
ESE
5
SE
10
E
20
E
20
E
20
ESE
15
ESE
10
ESE
0
SE
5
W
5
NE
5
NE
5
E
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscrosscrosscrosscrosscrosscross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscrosscrosscross-
on		crosscrosscrosscrosscross-
off		cross-
off		crosscrosscrosscrosscrosscrosscrosscross-
off		glasscross-
on		cross-
on		crosscrosscrosscrossglassglassglassglasscrosscross
High Tide
/ height (m)
7:17PM
0.78
8:29PM
0.77
9:41PM
0.78
9:58AM
0.39
10:40PM
0.79
11:28AM
0.48
11:27PM
0.80
12:23PM
0.59
12:09AM
0.79
1:10PM
0.72
12:48AM
0.76
1:53PM
0.84
Low Tide
/ height (m)
10:59AM
0.16
11:45AM
0.20
1:00PM
0.25
5:49AM
0.33
2:53PM
0.29
6:03AM
0.27
4:33PM
0.30
6:24AM
0.21
5:49PM
0.30
6:48AM
0.14
6:55PM
0.29
7:15AM
0.08
7:54PM
0.28
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Sunrise-------6:01-------6:00-------6:00-------5:58-------5:58-------5:56-------5:56----
Sunset--6:40-------6:42-------6:42-------6:42-------6:43-------6:43-------6:43-------6:44-
thunderstorm thunderstorm thunderstorm rain showersclearclearclearclearclearthunderstorm thunderstorm thunderstorm clearclearclearclearclearpart cloudclearpart cloudclearclearclearclearclearthunderstorm rain showersclearclearpart cloudclearclearclearthunderstorm thunderstorm rain showersclearclearpart cloudpart cloudpart cloudthunderstorm thunderstorm thunderstorm clearclearclearclearpart cloudclearclearclearclearpart cloudpart cloudpart cloudpart cloudcloudpart cloudpart cloud
Rain (mm)
1441-----121-------------11------122-----121----------------
Temp. °C252424232323232325242423232323232425242323232223242424232323232425252424242323242525242424232324262525242424242426252424
Feels °C (?)282625232322222325252523242424232425242323242223242424232425252627262425252425262626242424242426272525252526272729282726
  • 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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View detailed surf forecast for Waimanu Bay at:
surf-forecast.com

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