Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Saturday 11 Apr 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
25.0° C
(Which is slightly warmer than usual)

How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 10AM is: 1.1m 8s primary swell from a East direction and 0.4m 12s secondary swell from a Northwest direction (forecast issued at 01:00am April 11). The wind direction is predicted to be glassy and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (11 Apr)3.5ft (1.1m)8s
Afternoon (11 Apr)3.5ft (1.1m)8s
Evening (11 Apr)3.5ft (1.0m)8s

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


Updates in  hr  min  s Forecast update imminent
Saturday
11
Sunday
12
Monday
13
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
2
1
1
1
1
2
2
2
1
1
1
1
1
0
0
1
1
2
2
2
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.5
ESE
1.1
E
1.1
E
1.1
E
1.1
E
1.1
E
1.3
ESE
1
E
1
E
1
E
1.1
E
1.2
E
1.1
E
1.1
E
1
E
1.1
ESE
0.8
NW
0.9
NW
0.9
NW
0.9
NW
0.9
NW
0.8
NW
0.8
NW
0.8
NW
Period(s) (?)88888888888766771211111111111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2631381381381351351811151151151381597782109125169182172169166134132127
Wind
(km/h)
5
W
0
NE
5
E
5
NE
5
NNW
5
NW
0
ENE
5
ENE
10
ESE
10
ESE
15
ESE
15
ESE
10
E
10
ESE
10
ESE
10
ESE
10
ESE
5
SE
0
SW
5
WNW
5
N
10
N
5
N
0
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
glassglassglasscross-
on
glassglassglasscrosscrosscrosscrosscrosscrosscrosscrosscrosscross-
off
glassglasscross-
on
cross-
on
glassglass
High Tide
/ height (m)
10:47PM
0.75
11:10AM
0.42
Low Tide
/ height (m)
6:27AM
0.32
Saturday
11
Sunday
12
Monday
13
Sunrise---6:07-------6:05-------6:05----
Sunset------6:38-------6:38-------6:39-
part cloud
light rain
light rain
part cloud
part cloud
thunderstorm
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
light rain
rain showers
thunderstorm
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
-22--1-------2311-------
Temp. °C252424252526252524242425262524242424242426262525
Feels °C (?)282828292830302927272627282827272627282729282829
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Waimanu Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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