Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo 48 hour detailed Surf Forecast

Issued: 1 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
26.9° C
0.2° 

Waimanalo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Waimanalo today (17 Aug):

  • Morning surf: Morning surf (17 Aug, local time) - 5.5ft (1.7m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (17 Aug, local time) - 5.5ft (1.7m), 7s period with ENE swell.
  • Evening surf: Evening surf (17 Aug, local time) - 5ft (1.5m), 7s period with ENE swell.

The current surf forecast for Waimanalo at 9PM is: 1.5m 7s primary swell from a East-northeast direction (forecast issued at 01:00pm August 17). An open ocean swell of 0.4m 14s is not directed at the surf break, a second open ocean swell of 0.2m 5s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (HST) & DateWave HeightWave Period
Morning (17 Aug)5.5ft (1.7m)8s
Afternoon (17 Aug)5.5ft (1.7m)7s
Evening (17 Aug)5ft (1.5m)7s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Thu morning, min 24°C on Tue night). Wind will be generally light.

Mon
17
Tuesday
18
Wednesday
19
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
ENE
8
1.7
ENE
7
1.6
ENE
7
1.5
ENE
7
1.5
ENE
7
1.4
ENE
7
1.4
ENE
7
1.4
ENE
7
1.2
ENE
7
1.2
ENE
7
1.2
ENE
6
1.1
ENE
7
1.2
ENE
7
1.4
ENE
5
1.3
ENE
5
1.2
ENE
8
0.9
E
8
0.8
E
8
0.8
E
8
1.1
ENE
8
1.1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
346
294
261
222
215
173
163
163
139
143
119
114
135
102
102
202
113
88
84
149
146
Wind (km/h)
30
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
ENE
15
NE
20
NE
15
NE
15
NE
Wind State
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
on
on
on
on
on
High Tide
4:40PM0.47m
8:02AM0.45m
4:17PM0.43m
10:23AM0.47m
Low Tide
11:25AM0.27m
11:52PM0.07m
12:27PM0.33m
00:26AM0.08m
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
6:58
6:58
 mm
Temp °C
25
25
25
25
25
25
25
25
25
25
25
25
24
24
24
24
24
25
25
25
24
Feels °C
25
25
24
24
24
24
24
24
24
23
24
24
22
23
23
24
24
26
26
26
25
  • 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
How to use the Wavefinder 

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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