Surf Forecasts:
ADs/Doubles surf forecast from 30 Aug 2026:
- Most powerful swell: Saturday 5 Sep, 11AM (local time) - 11ft (3.5m), 8s period, ENE swell with 1,500 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 3.5m 8s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 14s period and expected on Monday (Aug 31) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sat 5th Sep) | 11ft (3.5m) 8s |
Table - best surf conditions forecast for ADs/Doubles over the next 16 days.
The Lowdown
Alright, Rusty here again, same story in feet and miles.
Right from the start, it’s a tough run. For the first week and a half, we’re dealing with a relentless strong cross-shore wind from the ENE, blowing 18 to 28 mph. The combined swell energy is moderate for most of that, sitting around 689 to 1076, but the quality is poor—messy, lumpy, blown-out conditions. You’ll be paddling through chop, not into clean waves.
The standout is Wednesday, September 9. Swell energy jumps to 2340, which is strong. We’re looking at a solid 12 ft wave from the ENE, and that’s the catch—it’s too big for this break. The wind eases right back to a gentle breeze, and conditions are glassy, but the wave comment flat-out says the swell is too big for ADs/Doubles. That morning is for experts only. The afternoon is similar.
Before that, Monday, September 7 afternoon and Tuesday, September 8 morning, the swell builds to around 8 ft with periods stretching to 11-12 seconds, which is a proper groundswell. The cross-shore wind is still there, and the energy reads 1859-1908. It’s marginal, not a clean, easy paddle.
Thursday, September 10 afternoon offers a window. The wind drops to an offshore breeze from the ESE, barely 5 mph. The swell is 8 ft from the ENE, 8 seconds apart. It’s marginal but that glassy moment might give you a few clean rides if the tide lines up.
The second week slides back into poor surf with lumpy cross-shore winds and small, short-period swell. Nothing to write home about.
So, the one to circle is that Wednesday, September 9 session—big, clean, but only for the brave. The rest of us are on the beach watching.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 25°C on Sat night). Mainly strong winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 26°C on Wed morning, min 25°C on Tue night). Mainly strong winds. | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 16 | S 16 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 669 | 431 | 397 | 248 | 406 | 441 | 501 | 494 | 443 | 508 | 422 | 401 | 339 | 397 | 422 | 431 | 621 | 689 | 1008 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross |
High Tide | 4:31AM0.49m | 4:17PM0.51m | 5:19AM0.53m | 4:46PM0.43m | 6:14AM0.56m | 5:18PM0.36m | 7:19AM0.59m | 5:54PM0.28m | 8:36AM0.61m | 7:01PM0.22m | 9:55AM0.64m | 9:27PM0.19m | |||||||
Low Tide | 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 | 5:18PM0.21m | 1:39AM0.06m | 6:33PM0.16m | 3:03AM0.07m | ||||||
 |  | |  | | | | | | | | | |  | | |  | | | |
 | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:49 | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 |
Feels °C | 21 | 23 | 23 | 22 | 22 | 23 | 22 | 24 | 24 | 22 | 24 | 24 | 25 | 21 | 21 | 21 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 17 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | S 19 | SSW 18 | S 18 | S 17 | S 16 | S 16 | S 15 | S 14 | S 14 | S 13 | E 13 | E 13 | S 13 |
| kJ | 188 | 171 | 100 | 199 | 146 | 138 | 192 | 329 | 314 | 364 | 422 | 401 | 275 | 268 | 195 | 176 | 285 | 285 | 119 |
Swell 2 Height (m) Direction Period (s) | S 12 | SSE 12 | SSW 16 | S 11 | S 11 | S 11 | S 10 | S 10 | S 12 | S 10 | E 14 | SSE 11 | E 13 | E 13 | E 12 | E 12 | S 13 | S 13 | SSW 20 |
| kJ | 47 | 47 | 162 | 85 | 82 | 79 | 50 | 29 | 77 | 34 | 35 | 39 | 123 | 157 | 103 | 68 | 170 | 121 | 37 |
Swell 3 Height (m) Direction Period (s) | SSW 12 | SSW 12 | S 20 | ENE 10 | E 10 | SSW 19 | SW 14 | SW 14 | SW 14 | SW 14 | SSE 10 | E 14 | S 11 | SSE 10 | S 10 | E 15 | SW 18 | SW 13 | N 12 |
| kJ | 45 | 47 | 30 | 35 | 48 | 122 | 54 | 51 | 52 | 51 | 19 | 65 | 58 | 33 | 31 | 106 | 12 | 27 | 11 |
Wind waves Height (m) Direction Period (s) | 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 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 8 | ENE 8 |
| kJ | 669 | 431 | 397 | 248 | 406 | 441 | 501 | 494 | 443 | 508 | 363 | 354 | 339 | 397 | 422 | 431 | 621 | 689 | 1008 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 64 | 56 | 62 | 49 | 56 | 56 | 49 | 49 | 109 | 49 | 49 | 56 | 49 | 56 | 113 | 51 | 112 | 217 | 139 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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