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Surf Forecasts:

Waimanalo surf break

Waimanalo surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Sunday 18 Jan 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
24.9° C
 (Which is slightly warmer than usual)

How big are the waves at Waimanalo today?

The current surf forecast for Waimanalo at 8AM is: 1.2m 19s primary swell from a Northwest direction and 1.3m 12s secondary swell from a North direction, 1.7m 6s secondary swell from a East direction (forecast issued at 01:00am January 18). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (18 Jan)4ft (1.2m)19s
Afternoon (18 Jan)6ft (1.8m)17s
Evening (18 Jan)6ft (1.8m)16s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
2
1
0
0
0
2
0
1
2
2
3
2
3
2
1
1
3
3
3
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
N
1.5
N
1.4
N
1.2
NW
1.6
NW
1.8
NW
1.8
NW
1.9
NW
1.7
NW
1.6
NW
1.4
NW
1.3
NW
1.1
NW
1
NW
0.9
NW
0.9
NW
1.5
E
0.8
NW
0.5
NW
0.6
NW
1
NW
1
NW
1
NW
1
NW
Period(s) (?)12111119181716161515141414131313712181616151514
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6865765021055161517961571178312621020821658500342286249199178150167492438410398
Wind
(km/h)
35
ENE
35
ENE
35
E
25
ESE
20
ESE
20
E
25
ENE
20
E
25
E
20
ESE
25
E
20
ESE
10
E
5
E
5
SSE
5
SE
5
SSE
0
SSE
10
E
10
E
10
SW
15
SSW
10
S
5
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		oncross-
on		cross-
on		crosscross-
on		crosscross-
on		cross-
on		glassglassglassglasscross-
on		cross-
on		offcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
3:35AM
0.64
1:41PM
0.28
4:01AM
0.65
2:23PM
0.29
4:25AM
0.64
3:09PM
0.30
Low Tide
/ height (m)
10:02AM
0.18
8:13PM
-0.11
10:27AM
0.17
8:47PM
-0.10
10:53AM
0.15
Sunday
18
Monday
19
Tuesday
20
Sunrise---7:09-------7:09-------7:09----
Sunset------6:10-------6:12-------6:12-
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
Rain (mm)
------------------------
Temp. °C232322232323232323232323232424242323222324242423
Feels °C (?)171716192020202020212021232425252425222424232424
  • 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 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.

View detailed surf forecast for Waimanalo at:
surf-forecast.com

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