Surf Forecasts:
Adraga surf forecast from 15 Aug 2026:
- Best quality surf: Sunday 16 Aug, 4AM (local time) - 8ft (2.4m), 9s period, NNW swell with cross-onshore winds.
- Most powerful swell: Friday 21 Aug, 4PM (local time) - 8ft (2.5m), 9s period, NNW swell with 898 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 4AM (local time) - 8ft (2.4m), 9s 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 Sunday (Aug 16) at 4AM. The primary swell is predicted to be 2.4m and 9s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Adraga in the next 16 days are 2.5m 9s and forecast to arrive on Friday (Aug 21) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Aug 19) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 16th Aug) | 8ft (2.4m) 9s |
| Best Surf | 4AM (Sun 16th Aug) | 8ft (2.4m) 9s |
| Most Powerful | 4PM (Fri 21st Aug) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Adraga over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.
Right off the bat, we’ve got a bit of a mixed bag. The early part of the window is pretty ordinary, with a lot of messy conditions and onshore winds. But there’s a gem of a window coming up on the 16th that’s worth circling on the calendar. The water temp is sitting at 70°, which is just about bang on for this time of year.
The standout of the whole forecast is Adraga on Sunday morning, the 16th of August. We’re looking at a clean 7 ft swell out of the NNW, with a period of 9 seconds. The wind is glassy – dead flat – so the surface will be like a mirror. The combined energy is moderate (681). This is the best you’ll see: clean, lined-up waves, and with glassy conditions, it’s going to be a dream. The swell is a bit chunky for beginners, but for anyone comfortable in that range, get in the water.
The rest of the first week (17th through 19th) has some clean but smaller, weaker options. Monday morning the 17th gives us 5 ft NNW swell with a light cross-off breeze from the south, making for clean surf. The energy is moderate (365). Tuesday morning the 18th is similar, with 4 ft and clean conditions. These are alright sessions, but nothing special.
After that, we drop into a long, poor stretch. From Wednesday the 19th afternoon all the way through to the end of the month, it’s nearly all onshore, choppy, or lumpy with fresh to strong breezes. There’s a big spike in size on the 22nd and 23rd with 10 ft and 8 ft swells, but the wind is howling from the NNW, making it a messy, cross-onshore mess. That’s kite-surfing territory, not great for a clean paddle.
Further out, on the 29th of August (Saturday morning), there’s a promising-looking swell from the WNW at 7 ft with a very long period of 12 seconds and a gentle breeze from the NNW. The combined energy is strong (1324). The comment says it might be too big for this break, so this is one for experienced surfers only. The long period makes it better suited to a point or reef, not a beach break. Worth keeping an eye on, but it’s a long way out so take it with a grain of salt.
So, bottom line: if you’re keen, you’ve got a solid window on the 16th, and a couple of clean mornings the 17th and 18th. After that, it’s a long wait until the end of the month for any real potential.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Mon morning, min 20°C on Fri night). Winds decreasing (fresh winds from the NNW on Sat afternoon, light winds from the N by Sun morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Mon night, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 10 | WNW 9 | WNW 9 | NNW 8 | NNW 9 | NNW 9 | NNW 8 |
Wave Graph | |||||||||||||||||||||
517 | 666 | 848 | 700 | 444 | 260 | 361 | 306 | 212 | 223 | 172 | 146 | 57 | 43 | 55 | 65 | 64 | 715 | 821 | 898 | 672 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-on | on | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:59AM2.85m | 5:14PM3.09m | 5:38AM2.76m | 5:53PM2.90m | 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 | |||||||
Low Tide | 10:57AM0.08m | 11:28PM0.05m | 11:36AM0.20m | 00:04AM0.23m | 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 | ||||||||
6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — | |
— | 8:32 | — | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | — | 8:25 | — | — | 8:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 24 | 23 | 22 | 25 | 23 | 24 | 22 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 |
Feels °C | 18 | 19 | 17 | 25 | 22 | 20 | 25 | 23 | 27 | 23 | 22 | 22 | 21 | 21 | 23 | 22 | 21 | 16 | 16 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | S 18 | SW 18 | SW 17 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | WNW 10 | WNW 9 | WNW 9 | SSW 15 | NW 12 | SSW 15 | NNW 12 |
6 | 12 | 11 | 700 | 444 | 260 | 361 | 306 | 212 | 223 | 172 | 146 | 57 | 43 | 55 | 65 | 64 | 21 | 195 | 21 | 29 | |
Swell 2 Height (m) Direction Period (s) | — | — | S 17 | SW 16 | SW 16 | SW 15 | W 8 | W 9 | WNW 8 | WNW 8 | SW 16 | WNW 8 | WNW 8 | WNW 11 | NNW 7 | NW 6 | SSW 4 | SSW 5 | W 9 | SSW 14 | WNW 9 |
— | — | 5 | 10 | 11 | 9 | 5 | 6 | 7 | 6 | 38 | 13 | 12 | 23 | 25 | 8 | 4 | 2 | 14 | 21 | 15 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 15 | SW 15 | SSW 16 | SW 14 | WNW 8 | SSW 15 | SSW 14 | SSW 14 | SSW 5 | SSW 4 | SSW 13 | SSW 12 | SSW 15 | — | SSW 14 |
— | — | — | — | — | — | 8 | 9 | 26 | 7 | 6 | 21 | 20 | 20 | 8 | 4 | 17 | 15 | 21 | — | 18 | |
Wind waves Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 9 | — | — | — | — | — | — | SSW 3 | — | — | S 3 | S 4 | — | — | NW 5 | NNW 8 | NNW 9 | NNW 9 | NNW 8 |
517 | 666 | 848 | — | — | — | — | — | — | 1 | — | — | 3 | 9 | — | — | 13 | 715 | 821 | 898 | 672 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 160 | 585 | 21 | 1 | 127 | 19 | 0 | 468 | 63 | 0 | 427 | 0 | 0 | 194 | 0 | 1 | 203 | 76 | 20 | 421 | 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.











