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Surf Forecasts:

Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Wednesday 18 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 1AM is: 1.3m 12s primary swell from a North-northwest direction and 0.9m 7s secondary swell from a East direction (forecast issued at 07:00pm March 18). An open ocean swell of 0.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (HST) & DateWave HeightWave Period
Morning (19 Mar)4ft (1.2m)11s
Afternoon (19 Mar)4ft (1.2m)11s
Evening (19 Mar)4ft (1.2m)11s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
Saturday
21
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
Rating
(10 max)
2
2
2
2
1
1
1
1
2
2
2
2
2
1
2
1
2
2
2
2
2
2
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.5
NNW
1.4
NNW
1.3
NNW
1.3
NNW
1.2
NNW
1.2
NNW
1.2
N
1.2
N
1.2
N
1.2
N
1.1
N
1.1
N
1.1
N
1
N
1
N
1
N
1
N
1.1
N
1.1
N
1.2
N
1.2
N
1.1
N
1.1
N
1.2
N
Period(s) (?)121212121211111111111111101010101011111111101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)619531503494411390364358351345286269254202202202206282282329323262247288
Wind
(km/h)
10
ESE
10
E
10
E
10
E
10
ESE
10
E
10
E
5
ENE
5
NW
5
WNW
5
WNW
0
WNW
5
SE
5
E
5
N
5
NW
5
NNW
0
WNW
5
W
0
SW
0
S
0
E
5
NNW
5
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		crosscrosscrosscross-
on		cross-
on		glassglassglassglassglasscrossglasscross-
on		glassglassglassglassglassglasscross-
on		cross
High Tide
/ height (m)
3:01AM
0.81
3:38PM
0.83
3:27AM
0.75
4:21PM
0.86
3:54AM
0.68
Low Tide
/ height (m)
8:55PM
0.18
9:16AM
0.11
9:40PM
0.23
9:43AM
0.08
10:28PM
0.29
10:11AM
0.07
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunrise-----6:26-------6:26-------6:24--
Sunset6:31-------6:32-------6:32-------
thunderstorm
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
clear
clear
rain showers
part cloud
part cloud
thunderstorm
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
Rain (mm)
1111---111--1--11-------
Temp. °C242423232324252525242424242425252524242424242626
Feels °C (?)272626262627272929282828272728282928282828272929
  • 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

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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.

View detailed surf forecast for Waimanu Bay at:
surf-forecast.com

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