Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo Surf Forecast and Surf Report

Issued: 1 pm 24 Sep 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
27.4°C
0.4° 

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


Waimanalo surf forecast from 25 Sep 2026:

  • Most powerful swell: Saturday 26 Sep, 11PM (local time) - 13ft (4.0m), 9s period, ENE swell with 2,449 kJ wave energy.

Best Forecast Surf Conditions for Waimanalo this week:

The most powerful waves expected at Waimanalo in the next 16 days are 4.0m 9s and forecast to arrive on Saturday (Sep 26) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Thursday (Oct 01) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sat 26th Sep)13ft (4.0m) 9s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Thu afternoon, min 24°C on Sat night). Mainly near gales.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Wed morning. Warm (max 27°C on Tue afternoon, min 25°C on Sun night). Winds decreasing (strong winds from the ENE on Sun afternoon, light winds from the ESE by Tue afternoon).

Thu
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
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
1
0
1
1
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
E
8
2.4
E
8
2.5
E
8
2.5
E
8
3
E
8
3.5
E
9
3.5
E
9
4
E
9
4
E
9
3.5
E
9
3
E
9
2.5
ENE
8
2.3
ENE
8
2
E
8
1.9
E
8
1.6
E
8
1.6
E
8
1.8
E
8
1.8
E
8
2.1
E
8
Wave Graph
Metric surfscale
Energy kJ
523
670
756
868
1249
1537
2042
2424
2403
1985
1160
867
737
548
500
367
351
378
381
504
Wind (km/h)
40
ENE
45
ENE
45
ENE
45
ENE
50
ENE
50
ENE
50
ENE
55
ENE
50
ENE
45
ENE
35
E
35
E
30
ENE
20
E
20
E
20
ESE
20
ESE
35
SSE
35
SSE
30
S
Wind State
on
on
on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
High Tide
1:45AM0.48m
1:59PM0.59m
2:24AM0.54m
2:15PM0.56m
3:06AM0.58m
2:31PM0.52m
3:51AM0.62m
2:47PM0.48m
4:42AM0.63m
2:59PM0.44m
5:41AM0.62m
3:00PM0.40m
Low Tide
7:53PM0.10m
7:30AM0.08m
8:12PM0.06m
8:10AM0.12m
8:33PM0.03m
8:53AM0.16m
8:58PM-0.01m
9:40AM0.21m
9:26PM-0.03m
10:35AM0.26m
9:58PM-0.03m
11:46AM0.31m
10:36PM-0.02m
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
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6:20
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6:20
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6:20
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6:20
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6:20
—
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6:20
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
—
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6:23
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6:22
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6:22
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6:21
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6:20
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6:19
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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2
5
10
Temp °C
26
25
25
26
25
25
25
25
25
26
25
26
26
26
26
27
26
27
27
26
Feels °C
23
21
20
22
21
20
19
19
19
20
21
24
24
24
26
28
26
26
25
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
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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.

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