Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 am Monday 30 Mar 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
24.5° 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 3PM is: 2.2m 12s primary swell from a North direction and 0.4m 8s secondary swell from a Northeast direction (forecast issued at 07:00am March 30). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (30 Mar)7ft (2.2m)12s
Afternoon (30 Mar)7ft (2.2m)12s
Evening (30 Mar)7ft (2.1m)12s

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


Updates in  hr  min  s Forecast update imminent
Monday
30
Tuesday
31
Wednesday
01
Thu
02
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
2
1
1
1
1
1
1
1
1
0
0
0
0
0
1
1
2
1
1
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.3
N
2.2
N
2.2
N
2.2
N
2.2
N
2.1
N
2.1
N
2.2
NNE
2
N
2
N
2.2
NNE
2.2
NNE
2.2
NNE
2.3
NNE
2.3
NNE
2.2
NNE
2.1
NNE
2
NNE
1.9
NNE
1.9
NNE
1.9
NNE
1.8
NNE
1.8
NNE
1.7
NNE
Period(s) (?)121212121212121212121111111111111111111010101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)14551332133213461346124812061208107910791227122011761194119411001011909778749692603578522
Wind
(km/h)
15
ENE
20
ENE
20
ENE
15
ENE
20
ENE
20
ENE
20
ENE
20
E
20
E
20
ENE
25
ENE
25
ENE
20
ENE
20
ENE
20
ENE
15
ENE
15
E
10
E
15
ENE
20
ENE
15
ENE
15
ENE
20
ENE
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
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
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
1:52PM
0.69
1:56AM
0.79
2:28PM
0.76
2:22AM
0.75
3:02PM
0.81
Low Tide
/ height (m)
7:54AM
0.19
7:42PM
0.21
8:14AM
0.16
8:26PM
0.23
8:35AM
0.13
9:07PM
0.25
Monday
30
Tuesday
31
Wednesday
01
Thu
02
Sunrise-6:18-------6:16-------6:16------
Sunset----6:36-------6:36-------6:36---
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
rain showers
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
Rain (mm)
---------1--------------
Temp. °C202121222221212020212222212121202021222322212121
Feels °C (?)191920212119191818191920191919181920212121201919
  • 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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