Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 1 am Friday 13 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
24.7° 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 6AM is: 0.9m 8s primary swell from a East-northeast direction (forecast issued at 01:00am March 13). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (HST) & DateWave HeightWave Period
Morning (13 Mar)2.5ft (0.7m)8s
Afternoon (13 Mar)3ft (0.9m)8s
Evening (13 Mar)4ft (1.2m)8s

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


Updates in  hr  min  s Forecast update imminent
Friday
13
Saturday
14
Sunday
15
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.8
ENE
0.9
ENE
0.9
ENE
0.7
E
0.8
E
0.9
E
1
E
1.1
E
1.3
E
1.4
E
1.3
E
1.2
E
1.2
ESE
1.1
E
1
E
1
E
0.7
N
0.7
N
0.7
N
0.7
N
0.6
N
0.6
N
0.6
N
0.8
ESE
Period(s) (?)8888888888888888121212121211118
Wave
Graph
(?)Metric surfscale
Energy kJ (?)86969958769812014821925322820020716914014014614413913498949087
Wind
(km/h)
5
ESE
10
W
5
NW
5
NNE
0
ESE
5
WNW
5
WSW
5
S
0
SW
5
SSW
10
SSW
10
SSW
15
SW
15
SW
20
SW
15
SSW
10
S
10
S
15
SSW
15
SSW
15
SSW
15
SSW
10
SW
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
glassglassglassglassglassglassglassglassoffoffoffoffoffoffoffoffoffoffoffoffoffcross-
off
High Tide
/ height (m)
12:08AM
0.76
11:23AM
0.41
12:43AM
0.81
12:18PM
0.47
1:13AM
0.85
1:00PM
0.54
Low Tide
/ height (m)
7:39AM
0.35
5:08PM
0.22
7:41AM
0.32
6:02PM
0.18
7:54AM
0.28
6:48PM
0.15
Friday
13
Saturday
14
Sunday
15
Sunrise---6:31-------6:31-------6:31----
Sunset------6:30-------6:30-------6:31-
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
rain showers
rain showers
part cloud
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
light rain
rain showers
rain showers
cloud
rain showers
Rain (mm)
-22232231-11--2----111-1
Temp. °C242222212222232223242425272726262525252526262625
Feels °C (?)272425242625262526272626272726272726262527272828
  • 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.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest