Waimanalo surf break

Waimanalo surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 7 pm Friday 20 Mar 2026 HST
Forecast update in hr  min  s Forecast update imminent
Waimanalo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waimanalo sea temperature is
24.4° C
(Which is normal for this time of year)

How big are the waves at Waimanalo today?

The current surf forecast for Waimanalo at 1AM is: 1.5m 11s primary swell from a North direction and 0.3m 7s secondary swell from a East direction (forecast issued at 07:00pm March 20). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.

Time (HST) & DateWave HeightWave Period
Morning (21 Mar)5.5ft (1.7m)10s
Afternoon (21 Mar)7ft (2.1m)12s
Evening (21 Mar)7ft (2.2m)11s

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


Updates in  hr  min  s Forecast update imminent
Friday
20
Saturday
21
Sunday
22
Monday
23
5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM
Rating
(10 max)
0
2
2
3
3
3
2
4
4
3
4
3
3
3
3
3
2
3
3
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.2
N
1.3
N
1.4
N
1.5
N
1.6
N
1.6
N
1.8
N
2.1
N
2.2
N
2.2
N
1.5
NNE
1.7
NNE
1.2
N
1.1
N
1.1
N
1.1
N
1
N
1.1
N
1.1
N
1.1
N
1.1
NNE
1.1
NNE
1
NNE
1.1
NNE
Period(s) (?)121111111110111211111110111111111010101099109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)380401451507566551723120812741208540619339277289277200264228239217217175225
Wind
(km/h)
25
SSW
25
SSW
20
SW
20
SW
15
SSW
15
SSW
15
SSW
15
SW
20
SSW
15
SSW
10
SSW
15
SSW
20
SW
10
SW
10
SSW
5
WSW
5
WSW
5
NW
5
NNW
10
N
10
N
15
NNE
20
NE
25
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffoffoffcross-
off
offoffcross-
off
cross-
off
offoffoffcross-
off
offglassglassglasscross-
on
cross-
on
cross-
on
onon
High Tide
/ height (m)
4:15PM
0.53
3:21AM
0.42
5:07PM
0.54
3:33AM
0.37
6:08PM
0.53
3:31AM
0.33
Low Tide
/ height (m)
10:02PM
0.12
9:58AM
-0.10
10:54PM
0.18
10:30AM
-0.10
12:03AM
0.24
11:07AM
-0.09
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise-----6:33-------6:33-------6:31--
Sunset6:40-------6:42-------6:42-------
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cloud
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thunderstorm
thunderstorm
Rain (mm)
21111-243412112431322122
Temp. °C242424242424252524242424242424232323232322222222
Feels °C (?)232424242525272624252625242526252525252423222120
  • 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 Waimanalo 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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