Waimanu Bay surfForecast / HAW – Big Island / USA

information circle48hr Weather and Surf, issued 7 pm Saturday 21 Feb 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 4AM is: 1.3m 9s primary swell from a East direction and 1.2m 8s secondary swell from a North-northeast direction (forecast issued at 07:00pm February 21). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (HST) & DateWave HeightWave Period
Morning (22 Feb)3.5ft (1.1m)9s
Afternoon (22 Feb)3ft (0.9m)9s
Evening (22 Feb)3.5ft (1.0m)8s

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

Updates in  hr  min  s Forecast update imminent
Saturday
21
Sunday
22
Monday
23
Tuesday
24
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
2
3
3
2
2
2
1
1
2
2
2
2
2
2
2
2
3
2
4
4
5
4
3
3
Swell
Height Map
Wave Height (m) & direction (?)
1.6
E
1.6
E
1.5
E
1.3
E
1.2
E
1.1
E
1.1
E
0.9
E
0.9
E
1
NNE
1
NNE
1.2
NNE
1.3
NNE
1.6
NNE
0.8
N
1.3
N
1.6
N
1.9
N
3
NNE
3
NNE
3
NNE
3
NNE
3
NNE
2.5
N
Period(s) (?)9999999998888817161615151515141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)43643637527423419218412712512612315419931838689013141676340635933482315431543108
Wind
(km/h)
10
E
10
SE
5
S
10
WSW
10
WSW
10
WSW
15
W
20
W
15
W
10
WSW
10
WNW
5
NNW
5
NE
10
NE
10
NE
10
NE
10
NE
10
ENE
10
E
10
ESE
5
ENE
5
ENE
10
NE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
glassglasscross-
on
cross-
on
oncross-
on
cross-
on
crosscrossglasscross-
on
oncross-
on
High Tide
/ height (m)
5:15AM
0.65
7:26PM
0.72
5:30AM
0.57
9:09PM
0.74
Low Tide
/ height (m)
11:57PM
0.40
12:03PM
0.15
1:24AM
0.49
12:51PM
0.16
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Sunrise-----6:47-------6:46-------6:46--
Sunset6:23-------6:23-------6:24-------
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
rain showers
part cloud
part cloud
part cloud
Rain (mm)
221----111----------1---
Temp. °C232323222222242424232221212123232221212121212222
Feels °C (?)242425232222242324242323232223232322212222222222
  • 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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