
Surf Forecasts:
Adraga surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 7AM (local time) - 8ft (2.5m), 10s period, NNW swell with cross-onshore winds.
- Most powerful swell: Thursday 17 Sep, 4AM (local time) - 10ft (3.0m), 10s period, NNW swell with 1,504 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period with NW 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 Sunday (Sep 13) at 7AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.9m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Adraga in the next 16 days are 3.0m 10s and forecast to arrive on Thursday (Sep 17) 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 0.2m 4s period and expected on Monday (Sep 14) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 13th Sep) | 2ft (0.6m) 14s |
| Best Surf | 7AM (Thu 17th Sep) | 8ft (2.5m) 10s |
| Most Powerful | 4AM (Thu 17th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Adraga over the next 16 days.
The Lowdown
Alright, let’s talk about the next couple of weeks. For the first few days, you can leave the boards in the car. There’s a lot of wind and messy surf on the way before things clean up.
Your first good window is Sunday the 13th. The morning is looking clean with a light offshore breeze. We’ve got a long-period NW groundswell pushing in around `3ft` at `13s` and the energy is moderate at `344`. It won’t be big, but it’ll have some push and shape. Sea temp is about normal for this time of year. A classic, clean way to start the day.
Monday the 14th is another early morning call. It’s dead glassy with a `3ft` NW swell at `11s`. The energy is moderate (`283`). It’ll be small but clean, perfect for getting a few long rides without too much drama. The wind is calm, which is a major positive.
Then it gets a bit wild. From Tuesday the 15th through Friday the 18th, the onshores stomp in and the ocean gets messy. The swell builds, but it comes with a lot of north wind. Sizes push up over `7ft` and even hit `12ft` on Wednesday the 16th, but it’s blown out, cross-onshore, and rough. The energy is strong to very strong, but it’s not doing anyone any favors for paddling. Honestly, this setup looks more interesting for kite surfing than for paddle surfing.
We get a little break Saturday morning the 19th. There’s a `4ft` NW swell with a `14s` period and only a light cross-shore wind. The energy is strong at `942`, but the comment is marginal. It’s a long-period swell, so it might be a bit straight at a beach break, but worth a look if you’re keen.
Now, here’s the standout. Monday the 21st is your best bet. The morning is glassy, with a `4ft` NW swell running at a long `16s`. The energy is very strong at `1084`. This is the good stuff. It's clean, it's got power, and the conditions are lined up for experienced surfers. This is the one to circle on the calendar.
The rest of that week stays rideable. Tuesday morning the 22nd has `6ft` of NW swell at `13s`, but the wind is onshore. Wednesday morning the 23rd and Thursday morning the 24th both have glassy conditions, but the swell drops off and the energy weakens.
After that, the surf fades out. The last week of the period sees the swell shrink and the onshores return, leaving us with small and wind-blown conditions. Nothing worth getting excited about from Friday the 25th all the way to the end of the outlook.
So, to wrap it up: your best windows are the mornings of Sunday the 13th, Monday the 14th, and that standout glassy morning on Monday the 21st. Everything else in the first week is a write-off, and the second week is a slow fade. Keep your eyes on that Monday the 21st session.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 20°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Thu morning, min 17°C on Tue night). Winds decreasing (strong winds from the N on Tue night, light winds from the NNE by Wed night). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 7 | NNW 7 | NNW 7 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 5 | NNW 7 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NW 15 |
Wave Graph | |||||||||||||||||||||
111 | 111 | 97 | 250 | 330 | 433 | 233 | 162 | 98 | 58 | 68 | 453 | 1409 | 1274 | 1318 | 734 | 1045 | 735 | 588 | 486 | 882 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | off | cross-on | cross | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:08PM3.11m | 4:29AM2.90m | 4:44PM2.99m | 5:03AM2.81m | 5:19PM2.80m | 5:36AM2.68m | 5:54PM2.57m | 6:10AM2.50m | 6:31PM2.32m | 6:48AM2.31m | 7:14PM2.08m | 7:37AM2.11m | 8:15PM1.88m | ||||||||
Low Tide | 10:19PM-0.02m | 10:30AM0.08m | 10:52PM0.10m | 11:05AM0.19m | 11:23PM0.28m | 11:40AM0.36m | 11:55PM0.49m | 12:17PM0.56m | 00:29AM0.71m | 12:58PM0.78m | 1:10AM0.93m | 1:54PM0.99m | 2:10AM1.11m | ||||||||
7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | |
— | 7:52 | — | — | 7:50 | — | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 25 | 26 | 25 | 26 | 25 | 24 | 24 | 20 | 19 | 18 | 17 | 19 | 19 | 21 | 19 | 19 | 21 | 19 | 19 |
Feels °C | 23 | 23 | 21 | 25 | 24 | 23 | 25 | 22 | 21 | 19 | 16 | 13 | 10 | 12 | 12 | 17 | 13 | 14 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 7 | WNW 9 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NW 11 | WNW 11 | S 13 | SW 13 | NW 12 | NNW 9 | S 12 | NNW 9 | NNW 9 | NNW 9 | NNW 8 |
111 | 111 | 65 | 250 | 330 | 433 | 233 | 162 | 98 | 58 | 33 | 90 | 3 | 6 | 75 | 734 | 3 | 735 | 588 | 486 | 321 | |
Swell 2 Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 15 | NNW 7 | NNW 7 | N 6 | NNW 6 | W 9 | W 9 | WNW 8 | WNW 8 | S 13 | NW 15 | — | S 12 | NW 11 | S 16 | SW 16 | NW 15 | NW 14 | NW 15 |
54 | 68 | 83 | 54 | 40 | 18 | 24 | 39 | 39 | 22 | 13 | 3 | 8 | — | 3 | 447 | 5 | 10 | 9 | 89 | 882 | |
Swell 3 Height (m) Direction Period (s) | S 13 | S 12 | WNW 11 | W 9 | WNW 8 | S 11 | WNW 9 | NNW 6 | S 10 | WNW 12 | S 10 | — | — | — | — | S 12 | S 16 | S 11 | SW 15 | NNW 18 | SW 14 |
3 | 3 | 12 | 40 | 26 | 2 | 26 | 12 | 2 | 15 | 2 | — | — | — | — | 3 | 5 | 2 | 9 | 32 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | NNW 7 | — | — | — | — | — | NNW 4 | NNW 4 | NNW 5 | NNW 7 | NNW 9 | NNW 9 | NNW 9 | — | NNW 10 | — | — | — | — |
— | — | 97 | — | — | — | — | — | 11 | 12 | 68 | 453 | 1409 | 1274 | 1318 | — | 1045 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 15 | 13 | 0 | 63 | 1 | 0 | 13 | 13 | 13 | 580 | 221 | 450 | 605 | 108 | 16 | 203 | 21 | 19 | 13 | 13 |
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.










