ADs/Doubles Surf Break

Lat Long: 21.30° N 157.66° W

ADs/Doubles Surf Forecast and Surf Report

Issued: 1 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's ADs/Doubles sea temperature is
26.7° 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 20 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 2PM (local time) - 2ft (0.6m), 18s period, SSW swell with cross-offshore winds.
  • Most powerful swell: Sunday 23 Aug, 11AM (local time) - 7ft (2.2m), 7s period, E swell with 508 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 2PM (local time) - 2ft (0.6m), 18s period with SSW swell.

Best Forecast Surf Conditions for ADs/Doubles this week:

The surf forecast for ADs/Doubles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 2PM. The primary swell is predicted to be 0.6m and 18s period with a secondary swell of 0.9m and 7s. Another secondary swell of 0.8m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at ADs/Doubles in the next 16 days are 2.2m 7s and forecast to arrive on Sunday (Aug 23) 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 Friday (Aug 21) at 2AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Thu 20th Aug)2ft (0.6m) 18s
Best Surf 2PM (Thu 20th Aug)2ft (0.6m) 18s
Most Powerful11AM (Sun 23rd Aug)7ft (2.2m) 7s

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


The Lowdown

Righto folks, Rusty here. We’re looking at one main break for this stretch, ADs/Doubles. The pattern is grim for a long stretch, but there’s a flicker of something promising right at the very end.

For the next week or so, it’s pretty much a write-off. The first decent window I can see is Thursday afternoon, August 20th. The water’s sitting at about 80°F, which is bang on average for this time of year. That Thursday arvo shows a small 2ft swell from the SSW with a very long 17-second period, and a cross-off breeze cleaning it up a treat. The combined energy is low (344), so it’s not powerful, but the conditions will be tidy. That’s the standout for this first week or so.

After that, we’re looking at a serious dry spell. From Friday the 21st right through to Wednesday the 26th of August, the onshore wind is relentless and messy, with the swell getting bigger but completely blown out. Things get a little bigger on the 22nd with 5ft to 6ft from the ENE, but the ENE wind is ripping at 22 mph, making it a total mess. The energy climbs (257-327) but it’s useless for a paddle. Frankly, for most of that week, the setup looks more interesting for kite surfing than paddle surfing.

The gap in good surf lasts for days. We see a tiny chance on the 26th afternoon with another long-period S swell, but still cross-shore breeze and marginal conditions.

Now, for the second week, there’s a glimmer. A big shift happens around September 1st. The morning of Tuesday, September 1st shows a whopping 10ft groundswell from the E with a period of 10 seconds. The combined energy is enormous (1821). The wind looks manageable with a cross-shore breeze. But here’s the thing – this is a lot of water. At over 8ft, this is strictly for experts only. Plus, with a long period swell like that coming from the east, it can break a bit straight at a beach break, so you’d want a reef or point to get the best line. The forecast is promising but at this range, it’s less certain. The following days up to the 3rd of September still show solid 7ft to 8ft swell, but the conditions look a bit messier again.

So, to wrap it up: if you’re desperate for a clean wave in the near term, that Thursday afternoon the 20th is your best shot. For the brave and the expert crew, keep an eye on September 1st for the real power, but don’t count your chickens.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Wed afternoon). Winds increasing (calm on Fri morning, fresh winds from the ENE by Sat morning).

Days 5-7 Weather Summary

Some drizzle, heaviest during Mon afternoon. Warm (max 26°C on Mon morning, min 25°C on Sat afternoon). Winds decreasing (strong winds from the ENE on Sun morning, moderate winds from the E by Tue morning).

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
1
2
0
0
0
1
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)
0.9
E
8
1
E
8
0.6
SSW
18
0.6
SSW
17
1
NE
7
0.7
NNE
7
0.9
ENE
7
0.8
SSW
16
1.6
ENE
7
1.7
ENE
7
2
E
7
2.2
E
7
2
ENE
7
2.2
ENE
7
1.9
ENE
7
1.8
E
7
1.7
E
8
1.7
E
8
1.5
E
8
1.4
ENE
8
Wave Graph
Metric surfscale
Energy kJ
107
124
207
202
94
40
91
322
206
277
435
508
360
474
362
358
365
365
286
226
Wind (km/h)
30
NE
20
NE
15
NE
15
NNE
10
ENE
10
ENE
20
ENE
15
E
35
ENE
40
ENE
40
ENE
45
ENE
45
ENE
45
ENE
35
ENE
30
ENE
25
ENE
20
E
20
ENE
25
ENE
Wind State
cross
cross
cross
cross-off
cross
cross-on
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
10:20AM0.55m
8:45PM0.20m
11:21AM0.57m
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
Low Tide
2:00AM0.10m
7:38PM0.20m
3:06AM0.11m
7:49PM0.17m
4:20AM0.10m
8:09PM0.14m
5:23AM0.08m
8:29PM0.12m
6:13AM0.06m
8:49PM0.11m
6:56AM0.04m
9:09PM0.10m
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
thunderstorm
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:11
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:57
6:57
6:55
6:54
6:53
6:52
6:52
 mm
1
Temp °C
26
25
25
26
26
26
27
27
26
25
25
25
25
25
26
26
26
26
27
26
Feels °C
25
25
27
28
29
30
28
30
25
22
22
22
21
21
25
25
26
26
28
26
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  • 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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