Surf Forecasts:
ADs/Doubles surf forecast from 24 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 0.5m 14s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 27th Aug) | 4ft (1.2m) 17s |
Table - best surf conditions forecast for ADs/Doubles over the next 16 days.
The Lowdown
Alright mates, let’s break it down for ADs/Doubles. Rusty’s on the mic.
Honestly, the first look is a bit of a downer. From Sunday the 23rd of August all the way through to Saturday the 5th of September, the trade winds just won’t quit. It’s howling from the NE to ENE at 15 to 25 mph, and it’s almost always cross-shore or cross-onshore. That breeze is going to chew the surface up into a lumpy, choppy mess. The swell is there – we’re seeing some solid 6 to 8 ft days on the 25th of August and again on the 2nd of September – but with a short, weak period of just 7 to 8 seconds, the waves will be all over the place. The energy is there (moderate to strong), but you’d be fighting a losing battle for any kind of clean ride.
But then, just when you’re about to pack it in, we get a real cracker on Monday the 7th of September. That morning, the wind finally lays down. It switches to a light NNE at just 6 mph and turns cross-offshore, which is the magic ingredient for a clean face. The swell drops to a manageable 6 ft from the ENE, with a 10-second period – a proper, lined-up groundswell. The conditions are described as clean and excellent for experienced surfers. This is your session. It’s the only real standout in the whole 16-day window. Just be aware that crowds are likely here, so plan your paddle-out accordingly.
Water temp is about 81°, which is pretty normal for this time of year.
So here’s the plan: sit through the chop for the first ten days or so. Be patient. Your best bet is without a doubt Monday morning, the 7th of September. That’s the one.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 26°C on Sun morning, min 24°C on Tue night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 25°C on Wed morning). Mainly strong winds. | ||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | S 18 | S 19 | S 17 | S 16 | S 16 | S 14 | S 14 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 326 | 432 | 307 | 311 | 270 | 285 | 547 | 346 | 308 | 232 | 307 | 458 | 861 | 427 | 590 | 260 | 329 | 342 | 277 | 192 | 249 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross |
High Tide | 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 | 3:21PM0.62m | 3:47AM0.44m | 3:48PM0.58m | 4:31AM0.49m | |||||||
Low Tide | 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 | 8:57AM0.06m | 10:10PM0.06m | 9:43AM0.10m | 10:32PM0.05m | ||||||||
 | |  | |  |  | | |  | | | |  | | | | | | | | | |
 | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — |
mm | — | — | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 24 | 24 | 25 | 25 | 26 | 24 | 23 | 22 | 20 | 22 | 22 | 23 | 23 | 22 | 23 | 21 | 22 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 12 | SSW 16 | SSW 15 | SSW 14 | S 18 | S 19 | S 17 | S 16 | S 16 | S 14 | S 14 | S 13 | E 12 | S 13 | E 13 |
| kJ | 146 | 191 | 100 | 104 | 156 | 129 | 85 | 196 | 121 | 215 | 307 | 458 | 861 | 427 | 590 | 260 | 329 | 225 | 112 | 87 | 225 |
Swell 2 Height (m) Direction Period (s) | S 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 7 | SSW 16 | SSW 12 | SSW 12 | SSW 18 | SSW 12 | SSW 13 | WNW 10 | SSW 12 | NNE 8 | NNE 7 | E 14 | E 12 | S 13 | E 14 | S 12 |
| kJ | 90 | 35 | 56 | 50 | 48 | 15 | 146 | 81 | 81 | 107 | 45 | 98 | 9 | 48 | 19 | 15 | 57 | 75 | 85 | 96 | 102 |
Swell 3 Height (m) Direction Period (s) | WNW 11 | SSE 11 | SSW 15 | SSW 18 | SSE 8 | SSW 17 | SSE 12 | SSE 12 | SSW 18 | S 21 | SSW 13 | SSW 16 | NNE 8 | NNE 8 | WNW 9 | E 14 | SSW 19 | SW 19 | S 13 | S 13 | SSW 17 |
| kJ | 23 | 25 | 71 | 62 | 19 | 94 | 49 | 45 | 109 | 79 | 59 | 50 | 7 | 13 | 9 | 64 | 36 | 56 | 89 | 84 | 188 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | E 7 | E 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 6 | E 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 326 | 432 | 307 | 311 | 270 | 285 | 547 | 346 | 308 | 232 | 214 | 213 | 188 | 165 | 188 | 157 | 223 | 342 | 277 | 192 | 249 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 49 | 109 | 49 | 56 | 49 | 49 | 56 | 58 | 50 | 50 | 58 | 49 | 49 | 50 | 49 | 49 | 56 | 49 | 49 | 58 | 21 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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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