Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo Surf Forecast and Surf Report

Issued: 7 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
26.1° C
0.1° 

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


Waimanalo surf forecast from 11 Jul 2026:

  • Most powerful swell: Sunday 12 Jul, 2PM (local time) - 7ft (2.2m), 8s period, ENE swell with 531 kJ wave energy.

Best Forecast Surf Conditions for Waimanalo this week:

The most powerful waves expected at Waimanalo in the next 16 days are 2.2m 8s and forecast to arrive on Sunday (Jul 12) 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 0.3m 18s period and expected on Sunday (Jul 12) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sun 12th Jul)7ft (2.2m) 8s

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


Alright, this is a tough one to call. We’re looking at Waimanalo for the next 16 days, starting July 11th.

Right off the bat, the wind is the main problem. It’s hammering out of the ENE at 25 to 25 mph most of the time, which is just onshore and messy. The swell itself is there – running 5 to 7 feet from the ENE – but it’s short-period stuff, around 7 seconds, which means it’s weak and lacks any punch. The combined swell energy hits moderate levels (400 to 516 in the early days), but it doesn’t matter when the wind is so strong and the waves are so choppy. Every single report says "poor surf conditions." There’s nothing to chase here.

The water temp is about 79°, which is pretty normal for this time of year, but again, that’s not the problem.

We get a slight let-up around July 15th and 16th, with the wind dropping to a cross-onshore 9 to 15 mph, but the swell drops too, down to 3 to 4 feet, and the period stays at 6 to 7 seconds. The energy drops to 132 to 176, which is weak. It’s still not worth a paddle.

The whole second week is more of the same. The wind stays onshore, the swell hangs around 5 to 6 feet, and the period remains short. By July 21st, the energy spikes to 617, but it’s accompanied by fresh cross-onshore winds and lumpy conditions. The forecast just never turns the corner.

Because Waimanalo is a fairly consistent break, this is a real bummer. It’s one of those stretches where the ocean has plenty of energy, but the wind is just ruining it. For a beginner, those 5 to 7 foot days with onshore wind are going to be a washing machine. For anyone else, it’s just not worth it.

Honestly, with this constant onshore wind and short-period swell, the setup looks more interesting for kite surfing than paddle surfing. There’s nothing here for us.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Sat afternoon, min 24°C on Sat morning). Mainly strong winds.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Warm (max 25°C on Tue morning, min 24°C on Tue morning). Mainly fresh winds.

Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
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
ENE
7
2.1
ENE
7
2.1
ENE
7
2.2
ENE
7
2.1
ENE
8
2
ENE
8
1.8
ENE
8
1.7
ENE
8
1.5
ENE
7
1.5
NE
8
1.6
NE
8
1.2
NE
7
1.2
ENE
7
1.1
ENE
7
1.3
ENE
7
1
E
6
1.2
E
6
1.6
ENE
6
1.4
ENE
7
1.4
ENE
7
1.6
ENE
6
Wave Graph
Metric surfscale
Energy kJ
400
407
397
516
501
447
373
336
242
255
283
156
140
114
173
71
108
188
175
175
188
Wind (km/h)
40
ENE
35
ENE
40
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
25
ENE
25
ENE
30
ENE
20
E
15
E
25
ENE
20
E
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
Wind State
on
on
cross-on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
High Tide
1:52PM0.71m
10:48PM0.30m
2:34PM0.75m
00:11AM0.30m
3:15PM0.77m
1:17AM0.31m
3:55PM0.76m
2:18AM0.32m
4:33PM0.73m
3:19AM0.32m
5:06PM0.69m
4:23AM0.32m
5:34PM0.63m
Low Tide
9:11PM0.25m
6:26AM-0.14m
9:32PM0.24m
7:16AM-0.15m
10:02PM0.22m
8:04AM-0.15m
10:36PM0.21m
8:49AM-0.11m
11:10PM0.19m
9:34AM-0.06m
11:44PM0.16m
10:16AM0.02m
00:18AM0.13m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
clear
rain showers
rain showers
part cloud
clear
clear
clear
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:56
5:56
5:56
5:56
5:56
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:15
7:15
7:15
7:15
7:15
 mm
1
1
Temp °C
24
25
25
24
25
24
24
24
24
25
25
25
25
25
25
25
25
25
25
25
24
Feels °C
22
23
23
21
22
21
21
21
21
24
23
24
26
25
25
25
23
23
22
22
22
  • 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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