Surf Forecasts:
Adraga surf forecast from 17 Aug 2026:
- Best quality surf: Sunday 23 Aug, 7AM (local time) - 7ft (2.1m), 8s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 23 Aug, 7AM (local time) - 7ft (2.1m), 8s period, NNW swell with 560 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 10AM (local time) - 5.5ft (1.7m), 8s period with NNW swell.
Best Forecast Surf Conditions for Adraga this week:
The surf forecast for Adraga over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 10AM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.1m and 15s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Adraga in the next 16 days are 2.1m 8s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 17th Aug) | 5.5ft (1.7m) 8s |
| Best Surf | 7AM (Sun 23rd Aug) | 7ft (2.1m) 8s |
| Most Powerful | 7AM (Sun 23rd Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Adraga over the next 16 days.
The Lowdown
Alright, Rusty here. Let's run through this in feet and miles per hour.
We’ve got a quiet start, but things wake up on Monday the 17th. The spot is Adraga, a beach and reef break. Water temp is pretty normal for August.
Monday morning the 17th is your best bet. Swell is about 6 ft from the NNW with an 8-second period, combined energy sitting at 364—moderate power. The wind is glassy from the SE at just 3 mph. That’s the cleanest you’ll see all forecast. Crowds are possible here, so get in early. The 6 ft swell is a bit much for beginners, but it’s good for experienced surfers. The direction isn’t a perfect match for the optimum WNW, but the glassy wind makes it a winner.
Monday afternoon the wind goes onshore from the NW at 9 mph and it falls apart. Tuesday the 18th morning is clean but with only 5 ft and a cross-offshore breeze—okay, but not the same magic.
From Thursday the 20th through Saturday the 23rd, the wind gets nasty from the N and NNW at 12-22 mph, cross-onshore mostly, with swell building to 7-7 ft. Lumpy, choppy, not worth it.
Sunday the 23rd morning brings offshore SE wind at 6 mph, clean, with a 7 ft NNW swell. The energy is 591—moderate—but the swell is predicted too big for this break. Over 7 ft, it’s expert-only. That afternoon the wind picks up again, only marginal.
After that, from Monday the 24th onward, it’s cross-onshore or onshore winds from the N and NNW, blowing 12-25 mph, with swell ranging from 6 ft to 8 ft. Even when a long-period 12-second groundswell shows up on Friday the 28th with strong energy of 1364, the wind ruins it. By September 1st, there’s a huge 14-second groundswell at 8 ft with energy of 2900, but it’s still messy with cross-onshore wind.
Bottom line: Monday morning the 17th is your only clean shot. After that, it’s a long stretch of windy, messy surf.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon afternoon. Warm (max 25°C on Mon morning, min 20°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Wed night, min 19°C on Wed night). Winds increasing (light winds from the NNW on Wed night, fresh winds from the NNW by Thu night). | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 9 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 344 | 251 | 231 | 291 | 250 | 201 | 123 | 125 | 62 | 62 | 97 | 316 | 439 | 531 | 405 | 483 | 525 | 445 | 560 | 435 | 335 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross-off | cross | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | off | off | cross-off |
High Tide | 6:15AM2.62m | 6:32PM2.65m | 6:54AM2.45m | 7:13PM2.39m | 7:37AM2.27m | 8:01PM2.14m | 8:29AM2.10m | 9:05PM1.94m | 9:44AM1.98m | 10:36PM1.85m | 11:16AM1.99m | 00:04AM1.90m | 12:30PM2.12m | 1:04AM2.05m | |||||||
Low Tide | 12:15PM0.37m | 00:40AM0.45m | 12:56PM0.58m | 1:18AM0.68m | 1:42PM0.79m | 2:03AM0.90m | 2:42PM0.98m | 3:06AM1.07m | 4:10PM1.09m | 4:41AM1.14m | 5:49PM1.05m | 6:08AM1.05m | 6:56PM0.90m | ||||||||
 |  |  | | | | | | |  | | | | | | | |  |  | |  | |
 | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — |
 | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | — | 8:25 | — | — | 8:24 | — | — | 8:22 | — | — | 8:22 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 4 |
Temp °C | 25 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 18 | 20 | 20 |
Feels °C | 26 | 21 | 22 | 22 | 22 | 23 | 22 | 22 | 21 | 21 | 16 | 14 | 16 | 16 | 17 | 18 | 18 | 19 | 18 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 9 | WNW 9 | NW 12 | NW 11 | WNW 8 | W 8 | WNW 10 | W 9 | WNW 9 | W 8 | WNW 8 | NNW 8 |
| kJ | 344 | 251 | 231 | 291 | 250 | 201 | 123 | 125 | 62 | 62 | 44 | 69 | 172 | 24 | 36 | 34 | 57 | 26 | 13 | 23 | 335 |
Swell 2 Height (m) Direction Period (s) | SW 15 | W 9 | W 8 | W 8 | SW 16 | WNW 8 | WNW 8 | WNW 10 | WNW 9 | SSW 13 | NW 11 | WNW 9 | WNW 9 | SSW 14 | WNW 11 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | WNW 7 |
| kJ | 8 | 6 | 5 | 4 | 38 | 13 | 12 | 20 | 50 | 17 | 19 | 27 | 25 | 21 | 38 | 20 | 20 | 19 | 18 | 17 | 16 |
Swell 3 Height (m) Direction Period (s) | SW 18 | SW 15 | SSW 16 | SW 14 | W 8 | SSW 15 | SSW 14 | SSW 14 | SSW 13 | NW 12 | SSW 13 | SSW 15 | SSW 15 | W 12 | SSW 13 | — | — | SSW 14 | — | — | SSW 13 |
| kJ | 12 | 9 | 26 | 7 | 10 | 21 | 20 | 20 | 17 | 6 | 17 | 21 | 21 | 11 | 18 | — | — | 19 | — | — | 17 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | WNW 7 |
| kJ | — | — | — | — | — | — | — | — | — | 40 | 97 | 316 | 439 | 531 | 405 | 483 | 525 | 445 | 560 | 435 | 40 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 59 | 22 | 0 | 535 | 7 | 0 | 205 | 13 | 13 | 450 | 286 | 206 | 206 | 115 | 108 | 204 | 15 | 1 | 16 | 35 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Adraga Surf forecast
The above surf forecast table for Adraga provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Adraga can be found by selecting the local surf guide option on the grey menu. Our Adraga 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 (Adraga) 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 Adraga 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.
Adraga is 9 km (6 miles) from Sintra. If you plan a holiday in Lisboa, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.
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