Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo Surf Forecast and Surf Report

Issued: 1 am 04 Oct 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
27.0°C
0.0° 

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


Waimanalo surf forecast from 4 Oct 2026:

  • Best quality surf: Wednesday 7 Oct, 11AM (local time) - 3.5ft (1.0m), 15s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 7 Oct, 11AM (local time) - 3.5ft (1.0m), 15s period, NNW swell with 443 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 7 Oct, 2AM (local time) - 2.5ft (0.8m), 16s period with NNW swell.

Best Forecast Surf Conditions for Waimanalo this week:

The surf forecast for Waimanalo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 07) at 2AM. The primary swell is predicted to be 0.8m and 16s period with a secondary swell of 0.6m and 6s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Waimanalo in the next 16 days are 1.0m 15s and forecast to arrive on Wednesday (Oct 07) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Oct 08) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Wed 7th Oct)2.5ft (0.8m) 16s
Best Surf11AM (Wed 7th Oct)3.5ft (1.0m) 15s
Most Powerful11AM (Wed 7th Oct)3.5ft (1.0m) 15s

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


Short Range Forecast

Some drizzle, heaviest during Tue night. Warm (max 26°C on Sun morning, min 24°C on Mon night). Winds decreasing (fresh winds from the ENE on Sun afternoon, light winds from the ESE by Tue night).

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Thu afternoon. Warm (max 27°C on Thu afternoon, min 24°C on Wed morning). Wind will be generally light.

Sunday
4
Monday
5
Tuesday
6
Wednesday
7
Thursday
8
Friday
9
Saturday
10
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
2
3
1
1
1
1
2
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)
1.3
ENE
6
1.8
NE
6
1.5
ENE
6
1.3
ENE
6
0.7
NNW
12
0.6
NNW
11
0.7
NNW
11
0.6
NNW
18
0.8
NNW
16
1
NNW
15
0.9
NNW
14
0.9
NNW
13
0.8
NNW
12
0.7
NW
12
0.7
NW
11
0.7
NNW
11
0.8
NNW
11
0.9
NNW
11
1.6
E
7
1.4
E
7
1.3
ENE
7
Wave Graph
Metric surfscale
Energy kJ
111
253
175
123
121
81
101
211
330
443
323
295
184
144
121
103
143
207
222
181
166
Wind (km/h)
30
ENE
35
ENE
30
ENE
30
ENE
30
ENE
20
ENE
15
E
15
ENE
10
SSE
15
SSE
15
SSW
15
S
20
SSE
20
SSE
10
SSE
15
ENE
25
E
30
E
30
E
25
ENE
25
ENE
Wind State
on
on
on
on
on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
11:17AM0.64m
10:50PM0.26m
11:59AM0.65m
11:56PM0.34m
12:31PM0.64m
00:44AM0.42m
12:56PM0.62m
1:25AM0.49m
1:17PM0.59m
2:04AM0.55m
1:33PM0.54m
2:42AM0.60m
1:47PM0.50m
3:19AM0.62m
Low Tide
7:15PM0.19m
4:10AM0.08m
6:59PM0.16m
5:18AM0.08m
7:05PM0.13m
6:12AM0.09m
7:17PM0.09m
6:58AM0.11m
7:32PM0.05m
7:41AM0.15m
7:50PM0.02m
8:24AM0.19m
8:09PM-0.01m
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
clear
clear
rain showers
thunderstorm
thunderstorm
thunderstorm
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:22
—
—
6:22
—
—
6:22
—
—
6:22
—
—
6:24
—
—
6:24
—
—
6:24
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:15
—
—
6:15
—
—
6:14
—
—
6:13
—
—
6:12
—
—
6:10
—
—
6:09
—
 mm
—
—
—
—
—
—
—
—
1
—
—
2
1
3
8
—
—
—
—
—
—
Temp °C
26
25
25
25
25
25
25
25
25
25
26
26
26
27
26
26
26
26
25
25
26
Feels °C
23
22
22
23
23
23
25
26
26
26
26
28
27
27
27
27
26
26
24
23
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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