Surf Forecasts:
ADs/Doubles surf forecast from 13 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 8PM (local time) - 13ft (4.0m), 9s period, E swell with 2,934 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 4.0m 9s and forecast to arrive on Saturday (Aug 15) at 8PM. 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 16s period and expected on Wednesday (Aug 19) at 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 15th Aug) | 13ft (4.0m) 9s |
Table - best surf conditions forecast for ADs/Doubles over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break it down for ADs/Doubles in feet and Fahrenheit.
Truth is, this whole 16-day forecast is a bust. There’s no good surf on offer. From Wednesday the 12th of August all the way to Thursday the 27th of August, it’s a constant run of cross-shore or cross-onshore wind, mostly out of the ENE or NE, blowing 16 mph to 34 mph. The water temp is about 81°F, with an anomaly of 0.7°F, so pretty much normal for the season.
The swell looks promising on paper but gets destroyed by wind. Early on, there’s a long-period S groundswell running 3 ft to 4 ft with 15-18 second intervals. Combined wave energy sits around 900-1049, which is moderate. But the wind is cross, strong, and rough.
By Friday the 14th, the swell swings to the ENE, bumps up to 8 ft, but the period drops to 8 seconds — short and weak. The wind is still a fresh cross-shore mess.
Saturday the 15th gets wild. Swell hits 12 ft to 13 ft from the east, with near gale-force cross-shore winds at 31-34 mph and wave energy up to 2948 (strong). That’s not for surfing; that’s kite territory or a complete skip day.
Sunday the 16th stays big, with 8 ft to 12 ft ENE and E swell, cross-onshore wind, and a risk of thunderstorms. Only for experts and even then, messy.
The second week is just a slow fade. From the 17th on, swell drops from 6 ft down to 2 ft, with periods as low as 7 seconds and as high as 18 seconds on the odd SSW groundswell. But it’s always cross or cross-onshore wind, never letting up. Wave energy sinks to weak levels, like 142 by the 21st.
Don’t get your hopes up. This is a total blank run, and around here, that happens. Forecasts might shift, but right now, there’s nothing worth chasing.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed night, min 25°C on Wed afternoon). Winds increasing (fresh winds from the ENE on Wed night, near gales from the ENE by Sat morning). | Days 5-7 Weather SummaryModerate rain (total 10mm), heaviest on Sun afternoon. Warm (max 26°C on Sat afternoon, min 25°C on Sat night). Winds decreasing (near gales from the ENE on Sun morning, fresh winds from the ENE by Mon night). | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 18 | S 16 | S 16 | S 15 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 9 | E 9 | ENE 9 | E 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 613 | 520 | 501 | 653 | 579 | 623 | 570 | 1089 | 1979 | 2737 | 2342 | 1646 | 936 | 639 | 346 | 302 | 231 | 193 | 163 | 143 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross |
High Tide | 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 | 7:56AM0.52m | 6:10PM0.31m | |||||||
Low Tide | 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 | 2:59PM0.27m | 1:14AM0.09m | |||||||
 |  | | | | | |  | | | |  | |  |  | | | | | | |
 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — |
 | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:59 | — | — | 6:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 4 | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 24 | 23 | 23 | 22 | 22 | 23 | 22 | 21 | 21 | 20 | 22 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | SSE 12 | S 10 | S 7 | S 14 | S 14 | S 13 | S 13 | ENE 7 | S 13 |
| kJ | 613 | 520 | 501 | 653 | 537 | 411 | 411 | 306 | 225 | 168 | 176 | 694 | 697 | 93 | 334 | 257 | 222 | 162 | 163 | 85 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | W 12 | W 11 | W 12 | E 11 | NNW 8 | NNW 8 | S 16 | S 18 | S 16 | S 16 | S 14 | S 6 | S 6 | SSW 19 | SW 17 | S 13 | SSE 10 |
| kJ | 218 | 222 | 150 | 11 | 10 | 11 | 91 | 6 | 7 | 43 | 99 | 181 | 127 | 195 | 18 | 20 | 37 | 74 | 162 | 30 |
Swell 3 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | NNW 8 | NNW 7 | NNW 8 | SSW 18 | W 11 | W 11 | W 13 | SSE 13 | W 12 | W 12 | S 16 | SW 18 | SW 19 | W 11 | W 13 | SSW 18 | SW 18 |
| kJ | 25 | 11 | 11 | 6 | 5 | 6 | 30 | 9 | 9 | 13 | 17 | 25 | 11 | 81 | 50 | 59 | 10 | 14 | 121 | 79 |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | E 9 | E 9 | ENE 9 | E 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 218 | 218 | 252 | 329 | 579 | 623 | 570 | 1089 | 1979 | 2737 | 2342 | 1646 | 936 | 639 | 346 | 302 | 231 | 193 | 108 | 143 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 58 | 49 | 50 | 110 | 49 | 56 | 64 | 110 | 139 | 140 | 112 | 218 | 64 | 56 | 56 | 56 | 49 | 49 | 56 | 18 |
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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