Surf Forecasts:
Adraga surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 4AM (local time) - 4.5ft (1.4m), 9s period, NNW swell with 311 kJ wave energy.
Best Forecast Surf Conditions for Adraga this week:
The most powerful waves expected at Adraga in the next 16 days are 1.4m 9s and forecast to arrive on Thursday (Aug 06) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 12s period and expected on Thursday (Aug 06) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Thu 6th Aug) | 4.5ft (1.4m) 9s |
Table - best surf conditions forecast for Adraga over the next 16 days.
The Lowdown
Alright, I’ve been staring at the numbers and the vibe is pretty grim for the next week and a half. We’re looking at a big, dry gap right off the bat. The first time you’d even think about paddling out is not until Friday, August 14th. That’s more than a week of nothing but onshore slop and weak, short-period junk. For the first ten days or so, you might as well just leave the boards in the garage. The wind is a constant problem, mostly cross-onshore, and the swell is all over the shop.
Then, the energy finally shows up, but it’s a heavy-duty affair. The only spot in the game is Adraga. It’s a beach and reef setup, exposed to the west-northwest, which is spot on for the swell direction. The water’s sitting at about 67°, which is a bit cooler than normal for August, so don’t forget a good wetsuit.
The real window is from Saturday, August 15th, through Monday, August 17th. We’re talking a solid groundswell from the NNW, running 7ft to 8ft. The combined energy is massive – we’re talking readings of 487 to 723 (strong to very strong wave energy). That’s a serious amount of power. The wind is the key; it swings light offshore from the south early Saturday, and then cross-offshore from the south-southwest. That’ll keep the waves clean, maybe even a bit glassy. But here’s the thing: for a spot like Adraga, 7ft+ is big. This is not a beginner’s wave. If you’re not an expert, find a book. This is a serious, powerful, and challenging wave. The period is around 7 to 8 seconds, which is a bit short for that size, so it’ll be a bit crumbly and punchy, not a long, rolling wall.
Leading into it, on Friday the 14th, the swell is already up to 7ft, but the wind is a bit more cross-on from the west-northwest, making it lumpy. It’s a marginal call.
So, here’s the game plan: If you’re a seasoned surfer and you can handle big, powerful surf, your best call is the morning of Saturday, August 15th. Clean, solid, and a ton of energy. Sunday morning the 16th is also a good option with similar clean conditions. After Monday afternoon, the wind shifts back onshore and the quality falls off a cliff. It’s a short, intense window of proper, heavy surf.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 18°C on Wed night). Winds increasing (light winds from the WNW on Tue afternoon, fresh winds from the NNW by Thu afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sat morning, min 19°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||
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) | WNW 8 | WNW 8 | WNW 8 | NW 9 | NNW 9 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 8 | W 8 | WNW 7 | NW 7 | NNW 9 | W 7 | NW 8 | NNW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 94 | 90 | 88 | 225 | 301 | 203 | 265 | 249 | 276 | 283 | 147 | 81 | 69 | 42 | 61 | 77 | 32 | 28 | 125 | 73 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:03PM2.56m | 7:32AM2.38m | 7:54PM2.40m | 8:30AM2.28m | 9:01PM2.26m | 9:44AM2.23m | 10:26PM2.18m | 11:09AM2.28m | 11:54PM2.25m | 12:27PM2.45m | 1:06AM2.41m | 1:29PM2.69m | 2:04AM2.59m | |||||||
Low Tide | 1:17AM0.49m | 1:35PM0.63m | 2:09AM0.63m | 2:39PM0.75m | 3:17AM0.76m | 4:02PM0.80m | 4:41AM0.80m | 5:34PM0.73m | 6:05AM0.72m | 6:51PM0.53m | 7:12AM0.54m | 7:52PM0.30m | ||||||||
 |  | | | | | | | | | | | | |  | | | | | | |
 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — |
 | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:39 | — | — | 8:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 21 | 21 | 21 | 20 | 21 | 20 | 20 | 20 | 19 |
Feels °C | 22 | 22 | 19 | 17 | 16 | 15 | 15 | 15 | 18 | 17 | 17 | 20 | 20 | 22 | 20 | 19 | 18 | 18 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | W 10 | W 7 | W 10 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | W 8 | NW 11 | NW 10 | W 7 | W 7 | W 11 | W 6 |
| kJ | 94 | 90 | 69 | 56 | 26 | 49 | 49 | 46 | 28 | 28 | 26 | 26 | 23 | 42 | 30 | 25 | 22 | 26 | 2 | 19 |
Swell 2 Height (m) Direction Period (s) | N 9 | NW 11 | NW 9 | SW 12 | W 10 | WNW 7 | S 12 | SW 13 | S 12 | S 12 | S 12 | W 5 | S 11 | NW 12 | S 13 | S 11 | NNW 9 | NNW 8 | S 12 | WNW 10 |
| kJ | 7 | 56 | 88 | 6 | 53 | 9 | 3 | 7 | 3 | 3 | 3 | 2 | 3 | 6 | 3 | 2 | 32 | 28 | 3 | 11 |
Swell 3 Height (m) Direction Period (s) | NW 12 | SW 12 | W 10 | — | SW 12 | SW 12 | — | — | S 12 | — | — | S 12 | — | N 10 | S 11 | — | W 12 | W 11 | — | NNW 9 |
| kJ | 5 | 6 | 19 | — | 6 | 6 | — | — | 3 | — | — | 3 | — | 2 | 2 | — | 3 | 2 | — | 8 |
Wind waves Height (m) Direction Period (s) | — | NW 3 | — | NW 9 | NNW 9 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | WNW 7 | NW 7 | NNW 4 | NNW 4 | NW 8 | NNW 7 |
| kJ | — | 2 | — | 225 | 301 | 203 | 265 | 249 | 276 | 283 | 147 | 81 | 69 | 30 | 61 | 77 | 16 | 13 | 125 | 73 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 203 | 20 | 13 | 394 | 270 | 226 | 508 | 115 | 115 | 604 | 160 | 19 | 378 | 19 | 15 | 357 | 286 | 205 | 468 | 160 |
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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