ADs/Doubles Surf Break

Lat Long: 21.30° N 157.66° W

ADs/Doubles Surf Forecast and Surf Report

Issued: 7 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's ADs/Doubles sea temperature is
26.8°C
0.0° 

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


ADs/Doubles surf forecast from 22 Aug 2026:

  • Most powerful swell: Thursday 27 Aug, 11AM (local time) - 4ft (1.2m), 17s period, S swell with 861 kJ wave energy.

Best Forecast Surf Conditions for ADs/Doubles this week:

The most powerful waves expected at ADs/Doubles in the next 16 days are 1.2m 17s and forecast to arrive on Thursday (Aug 27) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 16s period and expected on Saturday (Aug 22) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Thu 27th Aug)4ft (1.2m) 17s

Table - best surf conditions forecast for ADs/Doubles over the next 16 days.


The Lowdown

Alright, Rusty here. Let's break down what's cookin' for the next couple weeks.

Honestly, it's a tough slog out at A-Ds-Doubles right now. For nearly a week and a half, from Saturday the 22nd of August all the way to the end of the month, you'd be better off waxing your board at home. The wind is relentless – strong cross-shore and cross-onshore from the ENE at 30 to 45 km/h, just tearing the surface up. The swell bounces between 0.9 ft and 2 ft, but it's all short-period, weak windswell from the east, and the energy is all over the place. With that wind, it's just lumpy, choppy crap. Not worth it.

Come Monday the 31st of August, things start to look a little less grim. We get a 2 ft to 2 ft swell from the ENE with a longer period of 11 seconds. The energy jumps into the thousands (1038 to 1212), but the wind is still a fresh cross-shore. The notes say "marginal" – maybe worth a peek, but not a call to arms.

Now, Tuesday the 1st of September is where the door cracks open. The wind drops to a moderate breeze from the NNE in the afternoon, switching to a cross-offshore direction. The swell is a clean 2 ft from the NE with a 10-second period, and solid energy (1010). It’s clean for the first time in ages. Not a classic, but a real session.

But the one that stands out above everything else is Wednesday the 2nd of September. This is the day. The swell settles to 0.9 ft, but it's a long-period groundswell from the south with a 17-second period. That's a proper, deep-ocean pulse. The wind goes dead calm in the afternoon – glassy. Perfect, clean conditions. That long period might make it a bit straight at a beach break, but for a spot exposed to the ESE like this one, the south swell should wrap in with some real push. The energy is strong (705 to 759). For intermediate surfers, this is your morning mission. For beginners, it’s a perfect day to get out there on a clean, gentle wave. This is the top pick, no question.

After the 2nd, it’s back to a few days of messy onshore junk from the 3rd of September, with 2 ft to 2 ft of short-period windswell and even some risk of thunderstorms on the 4th. Not good.

So here's the call: sit tight through the first 10 days. Tuesday the 1st of September is a nice to have, but Wednesday the 2nd of September is your day. Glassy, long-period south swell, clean lines. That's the one to shoot for.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Mon morning. Warm (max 27°C on Fri night, min 25°C on Sat morning). Winds increasing (moderate winds from the E on Fri night, strong winds from the ENE by Sun afternoon).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Mon night, min 25°C on Tue night). Mainly fresh winds.

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
16
1.6
ENE
7
1.8
ENE
7
2.2
E
7
1.9
ENE
7
1.9
ENE
7
1.7
ENE
7
1.6
E
6
1.5
ENE
7
1.6
E
7
1.8
E
7
1.8
ENE
7
1.7
ENE
7
1.7
E
7
0.7
S
18
0.8
S
19
1.2
S
17
0.9
S
16
1.1
S
16
Wave Graph
Metric surfscale
Energy kJ
322
254
346
522
352
307
240
213
187
255
338
336
247
255
307
458
861
427
590
Wind (km/h)
20
ENE
40
ENE
40
ENE
40
ENE
45
ENE
40
NE
35
ENE
35
ENE
30
ENE
25
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
25
ENE
Wind State
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-on
High Tide
10:59PM0.20m
12:10PM0.60m
00:02AM0.21m
12:51PM0.62m
00:45AM0.24m
1:26PM0.65m
1:20AM0.27m
1:56PM0.66m
1:55AM0.30m
2:25PM0.67m
2:30AM0.34m
2:53PM0.66m
3:07AM0.39m
Low Tide
4:20AM0.10m
8:09PM0.14m
5:23AM0.08m
8:29PM0.12m
6:13AM0.06m
8:49PM0.11m
6:56AM0.04m
9:09PM0.10m
7:36AM0.04m
9:29PM0.09m
8:15AM0.04m
9:49PM0.07m
clear
part cloud
clear
clear
clear
clear
part cloud
thunderstorm
part cloud
thunderstorm
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:11
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:55
6:54
6:53
6:52
6:52
6:52
6:51
 mm
1
2
Temp °C
27
26
26
25
25
25
26
26
26
26
26
26
25
25
25
25
25
26
25
Feels °C
27
24
24
22
22
21
25
25
25
25
25
24
23
21
21
22
23
24
24
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the ADs/Doubles Surf forecast

The above surf forecast table for ADs/Doubles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at ADs/Doubles can be found by selecting the local surf guide option on the grey menu. Our ADs/Doubles 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 (ADs/Doubles) 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 ADs/Doubles 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.

ADs/Doubles is 14 km (9 miles) from the city of 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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