Surf Forecasts:
ADs/Doubles surf forecast from 28 Aug 2026:
- Most powerful swell: Thursday 3 Sep, 2PM (local time) - 6.5ft (2.0m), 12s period, E swell with 1,079 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 2.0m 12s and forecast to arrive on Thursday (Sep 03) at 2PM. 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 17s period and expected on Saturday (Aug 29) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Thu 3rd Sep) | 6.5ft (2.0m) 12s |
Table - best surf conditions forecast for ADs/Doubles over the next 16 days.
The Lowdown
Alright, let’s break it down. We’ve got a dry spell to start. The end of August and the first few days of September are pretty much a write-off. The wind is hammering in from the east-northeast, cross-shore, and it’s messy. There’s swell around – moderate energy (520 to 966 on the combined scale) – but it’s all poor quality. Not worth getting wet for.
The first real chance shows up around Thursday, September 3rd. The swell jumps up, with the combined energy hitting over 1200. We’re looking at a 1.9m swell from the east-northeast, with the period stretching out to 11 and 12 seconds. That’s a groundswell, so more push and better shape. But the wind is still cross-shore, and there’s a chop. It’s only rated as marginal. The better stuff starts to build from Saturday, September 5th, into Sunday the 6th. The swell holds around 2.2m from the east-northeast, with energy readings around 1300 to 1476 – that’s moderate to strong energy. The wind eases a little, but it’s still cross-shore. For ADs/Doubles, that cross-shore wind is the main issue. This spot needs clean conditions to really work.
Then we get to Monday, September 7th. That morning is where things turn. The wind drops to a light breeze from the northeast at just 6 mph. The swell is 1.9m from the east-northeast with a period of 9 seconds. It’s cross-shore, but with that light wind, the surface will be much cleaner. This is the first proper standout of the outlook. The combined energy is strong at 1182, so there’s plenty of power. For an intermediate, that 6 ft swell is fun, but it’s getting towards the top end for beginners. Crowds at ADs/Doubles are “often,” so expect company.
The water temperature is 81°F, which is pretty normal for this time of year.
Looking further out, the best of the whole window looks like it lands on Thursday, September 10th. The afternoon session is the real winner. We’ve got a 4 ft swell from the east with an 11-second period. The combined energy is 714 – moderate – but the wind is the key. It swings to the north-northwest at just 6 mph and goes cross-offshore. That’s clean, glassy conditions. The forecast even says “expect very good surf conditions.” The swell direction is from the east, which is close to the ideal ESE direction for ADs/Doubles. This is the pick of the whole stretch. Size is manageable, shape will be good, and it’ll be clean. For this break, with “often” crowds, you’ll have company, but for conditions like that, it’s worth it.
The next morning, Friday the 11th, has a 6 ft east swell with a 10-second period and an offshore wind from the southeast at 6 mph. That’s got potential too, but the afternoon drops off as the wind turns cross-shore again.
So, a long wait, but the second week has a couple of solid windows. The real standout is Thursday the 10th afternoon.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 25°C on Thu afternoon). Mainly strong winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Tue morning. Warm (max 26°C on Sun afternoon, min 25°C on Sun afternoon). Mainly fresh winds. | |||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||
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) | S 16 | S 16 | S 14 | S 14 | S 13 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | ENE 8 | ENE 8 |
Wave Graph | ||||||||||||||||||||
427 | 590 | 260 | 329 | 225 | 280 | 461 | 372 | 397 | 278 | 298 | 419 | 522 | 527 | 559 | 525 | 434 | 422 | 339 | 727 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 2:53PM0.66m | 3:07AM0.39m | 3:21PM0.62m | 3:47AM0.44m | 3:48PM0.58m | 4:31AM0.49m | 4:17PM0.51m | 5:19AM0.53m | 4:46PM0.43m | 6:14AM0.56m | 5:18PM0.36m | 7:19AM0.59m | 5:54PM0.28m | |||||||
Low Tide | 9:49PM0.07m | 8:57AM0.06m | 10:10PM0.06m | 9:43AM0.10m | 10:32PM0.05m | 10:34AM0.14m | 10:56PM0.04m | 11:35AM0.19m | 11:23PM0.04m | 12:53PM0.23m | 11:56PM0.04m | 2:47PM0.24m | 00:39AM0.05m | |||||||
— | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | |
6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 25 |
Feels °C | 22 | 22 | 22 | 22 | 22 | 21 | 23 | 22 | 21 | 22 | 23 | 22 | 22 | 22 | 25 | 24 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 14 | S 14 | S 13 | E 13 | S 13 | E 12 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | S 19 | SSW 18 | S 18 | S 17 | S 16 | E 12 | S 15 |
427 | 590 | 260 | 329 | 225 | 171 | 89 | 104 | 171 | 100 | 199 | 146 | 138 | 192 | 329 | 311 | 360 | 422 | 251 | 279 | |
Swell 2 Height (m) Direction Period (s) | SSW 12 | NNE 7 | E 16 | E 15 | E 14 | S 13 | S 12 | SSW 17 | E 11 | SSW 16 | S 11 | S 11 | S 10 | S 10 | SSW 14 | S 12 | S 13 | E 15 | S 16 | SSE 11 |
47 | 10 | 78 | 155 | 195 | 85 | 75 | 188 | 64 | 162 | 82 | 81 | 54 | 33 | 78 | 77 | 52 | 104 | 318 | 37 | |
Swell 3 Height (m) Direction Period (s) | NW 9 | E 17 | SSW 11 | SSW 19 | SW 19 | S 13 | SSW 17 | S 12 | SSE 12 | E 11 | ENE 10 | SSW 18 | SSW 19 | SSW 14 | W 12 | SW 14 | SW 14 | E 12 | E 15 | SSW 13 |
3 | 53 | 22 | 36 | 56 | 89 | 115 | 47 | 47 | 61 | 35 | 64 | 122 | 79 | 12 | 51 | 51 | 77 | 67 | 17 | |
Wind waves Height (m) Direction Period (s) | ENE 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
212 | 267 | 160 | 137 | 167 | 280 | 461 | 372 | 397 | 278 | 298 | 419 | 522 | 527 | 559 | 525 | 434 | 354 | 339 | 727 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 56 | 49 | 109 | 49 | 56 | 58 | 64 | 56 | 58 | 49 | 56 | 109 | 18 | 49 | 56 | 21 | 49 | 19 | 19 |
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.











