Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Thursday 12 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
24.6° 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 8AM is: 1.0m 8s primary swell from a East-northeast direction (forecast issued at 01:00am March 12). An open ocean swell of 0.5m 11s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (12 Mar)3.5ft (1.0m)8s
Afternoon (12 Mar)2.5ft (0.8m)8s
Evening (12 Mar)3ft (0.9m)8s

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


Updates in  hr  min  s Forecast update imminent
Thursday
12
Friday
13
Saturday
14
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
1
1
1
1
1
1
0
0
1
1
1
1
0
1
2
2
2
2
2
2
1
2
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
ENE
0.9
ENE
0.9
ENE
1
ENE
1
ENE
0.8
ENE
0.8
ENE
0.9
ENE
0.7
NE
1.1
E
1.1
ESE
0.9
E
1
E
1
E
1.1
E
1.2
E
1.3
E
1.3
E
1.3
E
1.2
ESE
1.1
ESE
1.1
ESE
1.1
ESE
1.1
ESE
Period(s) (?)998888888878888888888888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1321291231301278282966913812795114114141172207213217197171176180180
Wind
(km/h)
5
E
0
SSW
5
W
0
S
5
NW
5
SSE
5
NW
10
ESE
10
ESE
10
SE
5
W
5
W
0
NE
5
NW
5
ENE
5
SSE
0
WSW
10
W
5
SSE
10
SW
10
SW
20
SW
20
SW
10
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glassglassglassglassglassglasscrosscrosscross-
off
glasscross-
off
glasscrossglassglassglasscross-
off
cross-
off
cross-
off
offcross-
off
offoff
High Tide
/ height (m)
11:17PM
0.71
12:08AM
0.76
11:23AM
0.41
12:43AM
0.81
12:18PM
0.47
Low Tide
/ height (m)
3:51PM
0.26
7:39AM
0.35
5:08PM
0.22
7:41AM
0.32
6:02PM
0.18
Thursday
12
Friday
13
Saturday
14
Sunrise---6:33-------6:31-------6:31----
Sunset------6:30-------6:30-------6:30-
clear
clear
clear
part cloud
cloud
thunderstorm
light rain
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
rain showers
rain showers
light rain
light rain
thunderstorm
part cloud
part cloud
cloud
Rain (mm)
-----13------13221231---
Temp. °C242424242524232323242424242322222223232427272726
Feels °C (?)272727272827262424252626272625252625262628272727
  • 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

Latest Updates

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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