Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo Surf Forecast and Surf Report

Issued: 1 am 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
27.2°C
0.2° 

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


Waimanalo surf forecast from 17 Sep 2026:

  • Most powerful swell: Tuesday 22 Sep, 2PM (local time) - 8ft (2.4m), 10s period, ENE swell with 1,022 kJ wave energy.

Best Forecast Surf Conditions for Waimanalo this week:

The most powerful waves expected at Waimanalo in the next 16 days are 2.4m 10s and forecast to arrive on Tuesday (Sep 22) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 16s period and expected on Thursday (Sep 17) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Tue 22nd Sep)8ft (2.4m) 10s

Table - best surf conditions forecast for Waimanalo over the next 16 days.


Short Range Forecast

Light rain (total 7mm), mostly falling on Thu morning. Warm (max 27°C on Fri morning, min 26°C on Thu morning). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Warm (max 26°C on Sun morning, min 25°C on Sun night). Mainly strong winds.

Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
Wave
Height (m)
Direction
Period (s)
2.1
ENE
7
2.2
ENE
8
1.9
ENE
9
2
ENE
8
1.9
ENE
7
1.9
ENE
7
2
E
7
2
E
8
2
E
7
2
E
7
2
ENE
7
2.1
E
7
2
E
8
2
ENE
8
2.2
E
7
2.4
ENE
9
2.3
ENE
10
2.3
ENE
10
2.2
E
9
2.1
ENE
9
2.2
ENE
7
Wave Graph
Metric surfscale
Energy kJ
482
545
534
449
405
373
400
522
435
400
371
491
471
486
537
900
959
939
830
675
445
Wind (km/h)
30
NE
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
40
ENE
40
NE
35
ENE
40
ENE
40
ENE
35
ENE
Wind State
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
on
on
on
on
on
on
on
on
High Tide
8:54AM0.49m
10:52AM0.51m
11:47AM0.54m
12:22PM0.57m
11:21PM0.27m
12:47PM0.59m
00:00AM0.32m
1:08PM0.61m
00:34AM0.37m
1:26PM0.62m
1:08AM0.43m
Low Tide
11:41PM0.10m
1:18AM0.13m
3:40AM0.12m
7:51PM0.20m
4:53AM0.10m
7:29PM0.19m
5:39AM0.07m
7:29PM0.17m
6:17AM0.06m
7:39PM0.14m
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:18
6:18
6:18
6:18
6:18
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:31
6:30
6:30
6:29
6:28
6:27
6:25
 mm
1
2
3
1
4
2
1
1
Temp °C
26
26
26
27
27
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
Feels °C
25
25
25
26
25
25
25
23
24
24
23
24
23
23
24
24
24
24
24
23
24
  • 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 
submit an eyeball surf report

Quick surf report for Waimanalo:

join our community of surf reporters

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.


Information about the Waimanalo Surf forecast

The above surf forecast table for Waimanalo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waimanalo can be found by selecting the local surf guide option on the grey menu. Our Waimanalo surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Waimanalo) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Waimanalo may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Waimanalo is 7 km (4 miles) from Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest