Waimanalo Surf Break

Lat Long: 21.35° N 157.70° W

Waimanalo Surf Forecast and Surf Report

Issued: 1 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Waimanalo sea temperature is
26.2° 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 9 Jul 2026:

  • Most powerful swell: Thursday 9 Jul, 2AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 621 kJ wave energy.

Best Forecast Surf Conditions for Waimanalo this week:

The most powerful waves expected at Waimanalo in the next 16 days are 2.3m 8s and forecast to arrive on Thursday (Jul 09) at 2AM. Winds are predicted to be cross-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 Sunday (Jul 12) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Thu 9th Jul)7.5ft (2.3m) 8s

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


Alright folks, Rusty here. Let’s be straight with you. We’ve got a 16-day window on the go, and Waimanalo is the only break on the cards. I’m gonna level with you – the outlook is a tough one to swallow. The whole 16 days is a run of poor surf conditions, every single session rated as poor. That’s a long stretch of low-quality surf, and honestly, it’s a bit of a heartbreaker for a spot that can be a lot of fun.

The water temp is sitting at 79°, which is bang on average for this time of year, so that’s one thing you don’t have to worry about.

Let’s start from the beginning. Wednesday the 8th kicks things off with a 7 ft swell from the ENE, but it’s a short-period 7-second windswell. The wind is a fresh cross-onshore breeze at 22 mph, so it’s lumpy and messy. The combined energy is moderate at 482. That’s about as good as it gets for the first week, which tells you everything. The wind stays honking from the ENE, mostly onshore, with speeds around 19 to 25 mph all through the week. The swell is a constant 6 ft to 7 ft, always from the ENE, and the period rarely gets above 8 seconds. It’s just a long stretch of fresh, lumpy, onshore slop. Thursday the 9th, Friday the 10th, Saturday the 11th, Sunday the 12th, Monday the 13th, Tuesday the 14th – all the same story. The afternoon of Friday the 17th sees a jump to 8 ft ENE, with moderate energy reaching 590, but again, the wind is onshore and fresh. Saturday the 18th pushes the swell to 8 ft from the E, with a bit more period at 8 seconds, and energy at 775 – still moderate, but the wind is still onshore at 19-22 mph. That’s getting up there in size, and with the onshore wind, it’s just a messy, blown-out 8 ft. That’s expert-only territory for size, but the quality is poor, so it’s more of a washing machine than a wave.

Now, here’s the interesting bit, and it’s the only real standout in the whole run. On Tuesday the 21st, we see a big shift. Swell drops right down to 3 ft, but it arrives from the E with a *very long period* of 17 seconds. That’s a proper groundswell. The combined energy jumps right up to 877 – almost strong. The wind backs off to a moderate 16 mph from the NE, still onshore, but way better than what we’ve had. The swell is still small, but that long period means it’ll have some serious shape and push. The problem is, Waimanalo is a beach break, and long-period swells like this can break too straight and be hard to ride here. But if you’re a competent surfer, the early morning of the 21st could offer some surprisingly clean, long-lined waves on the sets. The 4 ft E swell with a 16-second period on the afternoon of the 21st is similar, with energy at 876. Wednesday the 22nd still has a 3 ft E swell at 15 seconds, but the wind picks up to a cross-onshore 12-19 mph, making it choppy. After that, it drops back to the short-period, onshore junk for the 23rd.

So, look. The whole 16 days is a write-off for quality, except for that one window on the 21st and maybe the 22nd. That’s your best bet. If you’re desperate for a paddle, the 21st is the only date with a pulse. The rest is just a solid run of onshore, wind-affected grovel. For a spot that’s fairly consistent, this is a real bummer of a forecast. Just remember, it tends not to stay this poor for long, and forecasts can change. But for now, it’s a hard pass.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Wed night. Warm (max 25°C on Wed afternoon, min 24°C on Wed afternoon). Mainly strong winds.

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 25°C on Sun afternoon, min 24°C on Sat afternoon). Mainly fresh winds.

Wed
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
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)
2.2
ENE
7
2.3
ENE
8
1.9
ENE
8
2
ENE
7
2.1
ENE
7
1.9
ENE
7
1.9
ENE
7
1.9
ENE
7
2
ENE
7
2
ENE
7
1.6
ENE
7
2.1
ENE
7
2.2
ENE
8
2.2
ENE
8
1.9
ENE
8
1.9
ENE
8
1.6
E
8
1.7
ENE
7
1.8
ENE
7
2.1
ENE
7
2.1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
498
621
422
440
456
346
338
348
435
412
284
462
545
581
410
389
294
305
344
449
432
Wind (km/h)
40
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
NE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
35
ENE
35
ENE
25
E
35
ENE
Wind State
on
cross-on
cross-on
on
cross-on
on
on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
High Tide
6:52PM0.41m
12:27PM0.56m
1:10PM0.65m
1:52PM0.71m
10:48PM0.30m
2:34PM0.75m
00:11AM0.30m
3:15PM0.77m
1:17AM0.31m
3:55PM0.76m
2:18AM0.32m
Low Tide
4:21PM0.34m
3:52AM-0.03m
4:44AM-0.07m
5:35AM-0.11m
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
clear
rain showers
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
rain showers
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:54
5:56
5:56
5:56
5:56
<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
7:15
 mm
1
1
1
2
Temp °C
25
24
25
25
24
24
25
24
24
24
24
24
25
24
24
25
24
25
25
24
25
Feels °C
22
21
23
23
21
22
23
21
21
21
21
21
22
21
21
22
21
23
23
21
23
  • 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