
Surf Forecasts:
ADs/Doubles surf forecast from 21 Jul 2026:
- Most powerful swell: Monday 27 Jul, 2PM (local time) - 7ft (2.1m), 14s period, E swell with 1,797 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 2.1m 14s and forecast to arrive on Monday (Jul 27) 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 0.4m 18s period and expected on Monday (Jul 20) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Mon 27th Jul) | 7ft (2.1m) 14s |
Table - best surf conditions forecast for ADs/Doubles over the next 16 days.
The Lowdown
Alright, this is Rusty, taking a look at the outlook for ADs/Doubles in feet and miles per hour for you.
We start off with a quiet few days. From Monday the 20th through Thursday the 24th, the surf is poor. Small swell around 3 to 3 feet from the S, with a very long period of 16 seconds dropping to 14 seconds, but the wind is cross and fresh, blowing 19 to 25 mph, making the surface lumpy and messy. Not worth it.
The water temp is 80°, running about average for the time of year.
From Thursday afternoon the 24th, the swell jumps up to around 7 to 8 feet from the ENE, but it’s short-period windswell at 7 to 8 seconds. The combined energy gets strong, up to 1677 by Saturday afternoon, but the wind is still cross and fresh, keeping the surface messy. Too much size for beginners and choppy for everyone.
Things start looking up around Sunday the 26th. The swell drops to about 6 feet, but the period stretches to 16 seconds from the E, bringing real groundswell energy. Combined energy is very strong, over 2000. The wind is still cross and fresh, so it’s marginal, but the power is there. By Tuesday the 28th, the swell hits 8 feet from the ENE at 13 seconds – that’s expert-only territory. We’re in the second week, so keep an eye on it.
The best chance comes Wednesday the 29th. Swell around 8 feet from the ENE, 12-second period, and the wind turns cross-offshore, giving us clean conditions. Combined energy is strong (over 1800). This is the session to target, but it’s for experienced surfers only at that size. After that, it peters out into smaller, choppier surf into August.
So, mark your calendar for Wednesday the 29th. That’s your best bet for clean, solid surf. The rest of the window needs patience.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Warm (max 26°C on Mon afternoon, min 24°C on Tue night). Winds increasing (light winds from the ENE on Tue morning, strong winds from the ENE by Wed night). | Days 5-7 Weather SummarySome drizzle, heaviest during Fri morning. Warm (max 25°C on Thu afternoon, min 24°C on Thu afternoon). Mainly strong winds. | |||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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 15 | S 14 | S 14 | S 13 | S 24 | ENE 11 | SSW 22 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 17 | E 16 | E 16 | E 16 |
Wave Graph | ||||||||||||||||||||
321 | 339 | 329 | 311 | 277 | 404 | 553 | 480 | 432 | 395 | 611 | 329 | 528 | 588 | 392 | 572 | 1137 | 1469 | 1606 | 1745 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 7:13PM0.37m | 10:08AM0.51m | 7:46PM0.29m | 11:08AM0.55m | 8:50PM0.23m | 11:59AM0.59m | 10:38PM0.19m | 12:42PM0.62m | 11:56PM0.19m | 1:20PM0.64m | 00:50AM0.19m | 1:55PM0.66m | 1:32AM0.20m | |||||||
Low Tide | 2:57PM0.28m | 2:33AM0.04m | 5:25PM0.28m | 3:12AM0.05m | 7:38PM0.23m | 3:57AM0.05m | 8:24PM0.18m | 8:50PM0.15m | 5:38AM0.03m | 9:14PM0.12m | 6:24AM0.02m | 9:38PM0.11m | ||||||||
— | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | |
7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | |
mm | — | 3 | 2 | — | 4 | — | — | 1 | 1 | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 25 | 24 | 25 | 24 |
Feels °C | 24 | 23 | 25 | 24 | 24 | 22 | 22 | 23 | 21 | 21 | 20 | 22 | 23 | 20 | 21 | 23 | 22 | 21 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 15 | ENE 7 | S 14 | S 13 | S 13 | S 13 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | E 17 | E 16 | E 16 | E 16 |
321 | 339 | 158 | 311 | 277 | 219 | 212 | 180 | 412 | 395 | 469 | 329 | 340 | 298 | 391 | 572 | 1137 | 1469 | 1606 | 1745 | |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 16 | S 14 | SW 16 | E 13 | E 12 | SSW 23 | S 13 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 | SSW 16 | E 14 | NNE 8 | SSW 16 | S 16 | SSW 16 |
81 | 69 | 329 | 68 | 119 | 138 | 426 | 157 | 68 | 90 | 55 | 105 | 100 | 296 | 223 | 146 | 192 | 469 | 522 | 416 | |
Swell 3 Height (m) Direction Period (s) | W 12 | E 12 | SW 17 | E 14 | SSW 26 | S 24 | SW 17 | SSW 22 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 | E 14 | E 18 | SSW 18 | S 11 | S 10 | S 12 |
11 | 12 | 72 | 64 | 224 | 404 | 77 | 480 | 100 | 127 | 85 | 91 | 231 | 68 | 148 | 221 | 547 | 36 | 32 | 3 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | — | ENE 7 | ENE 7 | ENE 7 | ENE 11 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | NE 7 |
193 | 191 | — | 158 | 206 | 195 | 553 | 278 | 432 | 374 | 611 | 312 | 528 | 588 | 392 | 506 | 272 | 464 | 393 | 318 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 18 | 49 | 18 | 49 | 49 | 49 | 49 | 50 | 49 | 58 | 61 | 49 | 56 | 58 | 50 | 49 | 58 | 20 | 49 | 56 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
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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.










