ADs/Doubles Surf Break

Lat Long: 21.30° N 157.66° W

ADs/Doubles Surf Forecast and Surf Report

Issued: 1 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's ADs/Doubles sea temperature is
27.0° C
0.4° 

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 12 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 11PM (local time) - 11ft (3.5m), 10s period, ENE swell with onshore winds.
  • Most powerful swell: Sunday 16 Aug, 2AM (local time) - 11ft (3.5m), 10s period, ENE swell with 2,977 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 11PM (local time) - 11ft (3.5m), 10s period with ENE 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 Sunday (Aug 16) at 11PM. The primary swell is predicted to be 3.5m and 10s period with a secondary swell of 0.7m and 13s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at ADs/Doubles in the next 16 days are 3.5m 10s and forecast to arrive on Sunday (Aug 16) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 18s period and expected on Tuesday (Aug 18) at 8PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sun 16th Aug)11ft (3.5m) 10s
Best Surf11PM (Sun 16th Aug)11ft (3.5m) 10s
Most Powerful 2AM (Sun 16th Aug)11ft (3.5m) 10s

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


The Lowdown

Righto, Rusty here. I’ve had a good look at the chart for the next couple of weeks, and I’ll be straight with you – it’s a tough read for ADs/Doubles. The overall pattern is dominated by a persistent cross-shore wind, mostly from the ENE, that just won’t let up. That’s gonna keep things lumpy and messy for the majority of the forecast period. We’ve got a run of poor surf conditions stretching from the first day right through to the end of the second week, with only a couple of days showing a glimmer of something marginal. The water temp is sitting right on 81°F, which is bang on average for this time of year (anomaly of just 0.7°F), so at least the water’s nice and warm.

Let’s start with Tuesday afternoon, August 11th. The swell is small at 3ft out of the SSW, but the wind is a fresh cross-shore from the ENE at 22 mph, so the wave comment is "poor surf conditions". The combined energy is moderate at 545. The score is a zero. Not a good start.

Moving into Wednesday, August 12th, the morning offers a 3ft S swell (period 18 seconds, a long period groundswell), but the wind is still ENE at 19 mph, cross-shore, and the comment is again "poor surf conditions". The energy is moderate at 897. The afternoon lifts a little – swell hits 3ft from the S, period 18 seconds, energy jumps to 1012 (still moderate), and the wind is 22 mph cross-shore, but the comment upgrades to "marginal surf forecast or questionable tide conditions" with a score of 1 out of 10. That’s the best we see for a while, but it’s hardly a green light.

Thursday, August 13th, through to Sunday, August 16th, is a real grind. The swell builds from 3ft up to 12ft, and by Saturday the 15th and Sunday the 16th, we’re looking at 8ft to 12ft of ENE swell. The wind gets nasty – up to 28-31 mph, cross-shore or onshore, with a risk of thunderstorms. The energy values are very high (1908 to 2423), but the wave comment is "poor surf conditions" across the board. Saturday afternoon has a near gale cross-shore (31 mph), and Sunday morning has a 12ft E swell with onshore wind. This is paddle-surfing no-go zone. For those with a kite, the setup might be more interesting than a surfboard.

Monday, August 17th, morning shows a slight improvement. The swell drops to 8ft from the ENE, period 9 seconds, wind is a gentle cross-onshore at 9 mph, and the comment is "marginal surf forecast" with a score of 1. Energy is high at 1171. It’s still not clean, but it’s the most promising moment so far. The wind is lighter, so the chop is a bit less crazy.

From Monday afternoon, August 17th, right through to Monday, August 24th, the story is the same: poor surf conditions, cross-shore wind (ENE or NE), and swell sizes bouncing between 2ft and 6ft. The combined energy is mostly moderate (300s to 900s). The only real standout in this whole stretch is Monday morning, August 24th. The swell is just 3ft from the S, period 18 seconds, but the wind is ENE at 19 mph cross-shore, and the comment is "marginal surf forecast" (score 1). Energy is moderate at 1010. It’s not a classic, but it’s the best of a bad lot.

After that, Tuesday, August 25th, and Wednesday, August 26th, see the wind pick up again, with swells from the S and ENE, but the wind is strong cross-shore or cross-onshore, keeping the lumpy mess going. The energy is moderate (900s), but the scores are zeros.

So, to sum it up for ADs/Doubles: the first two weeks are mostly a write-off for quality surf. The only real standouts, and I use that term loosely, are the Wednesday afternoon (August 12th) and the Monday mornings (August 17th and August 24th) – these are the only times the conditions are even marginal. The persistent ENE cross-shore wind is the culprit. If you’re desperate, keep an eye on those lighter wind windows, but honestly, this is a stretch where the forecasts might change, so don’t write the whole thing off just yet. That said, the overall pattern is a tough one.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 26°C on Tue afternoon, min 25°C on Tue night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 40mm), heaviest during Sat night. Warm (max 27°C on Sun afternoon, min 25°C on Fri afternoon). Winds decreasing (severe gales from the ENE on Sat night, light winds from the E by Sun night).

Tue
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
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
1
0
0
0
0
0
0
0
0
0
0
0
0
!
1
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
14
0.6
S
20
0.9
S
18
1
S
18
1
S
16
1
S
16
1.2
S
15
1.1
S
15
1
S
14
2.1
ENE
8
2.3
ENE
8
2.5
ENE
11
3
ENE
11
3.5
ENE
10
3.5
E
10
3
E
10
3.5
ENE
10
2.3
ENE
9
2.1
ENE
8
2
ENE
8
Wave Graph
Metric surfscale
Energy kJ
269
268
509
613
520
501
653
537
411
520
721
1628
2161
2977
1996
1691
2216
773
575
462
Wind (km/h)
35
ENE
30
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
NE
35
ENE
35
ENE
35
NE
40
NE
45
NE
50
NE
60
NE
35
ESE
25
SE
15
ESE
15
ENE
35
ENE
35
ENE
Wind State
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
on
on
on
cross-on
cross
cross
High Tide
2:36PM0.79m
2:40AM0.31m
3:14PM0.76m
3:27AM0.36m
3:49PM0.71m
4:15AM0.41m
4:22PM0.64m
5:04AM0.45m
4:53PM0.55m
5:55AM0.48m
5:21PM0.47m
6:52AM0.50m
5:48PM0.38m
Low Tide
9:52PM0.05m
8:22AM-0.02m
10:21PM0.04m
9:11AM0.01m
10:50PM0.04m
10:01AM0.07m
11:17PM0.04m
10:54AM0.13m
11:44PM0.05m
11:53AM0.20m
00:11AM0.05m
1:08PM0.25m
00:39AM0.07m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:09
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:02
7:01
7:00
7:00
7:00
6:59
 mm
2
15
11
4
5
3
1
Temp °C
26
25
25
25
26
26
26
25
26
26
25
26
26
26
26
27
27
26
26
25
Feels °C
24
23
23
22
24
24
23
22
23
23
22
23
23
22
23
27
28
29
26
24
  • Map Icons:
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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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