Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Wednesday 29 Oct 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
26.6° C
(Which is normal for this time of year)


How big are the waves at Waimanu Bay today?

The current surf forecast for Waimanu Bay at 8PM is: 1.0m 10s primary swell from a North-northwest direction and 1.1m 7s secondary swell from a East direction (forecast issued at 07:00pm October 29). The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (29 Oct)--
Afternoon (29 Oct)3ft (0.9m)11s
Evening (29 Oct)3.5ft (1.0m)10s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
29
Thursday
30
Friday
31
Saturday
01
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1
NNW
1
NNW
1
NNW
1
N
1
N
1
N
1
N
1
N
0.9
N
1.2
E
1.2
E
1.1
E
1.1
E
1.1
E
0.6
NNW
0.7
NW
0.8
NNW
0.8
NNW
0.8
NNW
0.8
NNW
0.9
NNW
1.6
NNW
1.8
NNW
1.9
NNW
Period(s) (?)10101010101010997777714131313121216161616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)231218214200200186179171132146146117114114129180215206196187463131816111803
Wind
(km/h)
20
E
20
E
20
E
20
E
20
E
20
E
20
E
20
ENE
20
E
20
E
20
E
15
E
20
E
20
E
20
ENE
20
ENE
25
ENE
25
E
20
E
20
E
15
E
20
E
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
crosscrosscrosscrosscross-
on
cross-
on
cross-
on
cross-
on
crosscrosscrosscrosscrosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
cross-
on
cross-
on
High Tide
/ height (m)
9:43PM
0.39
10:06AM
0.76
11:14PM
0.48
10:55AM
0.76
12:07AM
0.59
11:37AM
0.75
Low Tide
/ height (m)
2:14AM
0.32
5:36PM
0.27
4:05AM
0.34
5:56PM
0.21
5:28AM
0.34
Wednesday
29
Thursday
30
Friday
31
Saturday
01
Sunrise-----6:22-------6:22-------6:24--
Sunset5:49-------5:49-------5:47-------
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
rain showers
clear
part cloud
Rain (mm)
---------------------1--
Temp. °C252524242425272626252424242526262524242423252626
Feels °C (?)252523232325272626262524242526262523232323252627
  • 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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