
Surf Forecasts:
Carcavelos surf forecast from 10 Aug 2026:
- Best quality surf: Sunday 16 Aug, 4AM (local time) - 6.5ft (2.0m), 8s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 7AM (local time) - 6.5ft (2.0m), 9s period, NNW swell with 577 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 4AM (local time) - 6.5ft (2.0m), 8s period with NNW swell.
Best Forecast Surf Conditions for Carcavelos this week:
The surf forecast for Carcavelos 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 2.0m and 8s period with a secondary swell of 0.1m and 16s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Carcavelos in the next 16 days are 2.0m 9s and forecast to arrive on Sunday (Aug 16) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Thursday (Aug 13) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 16th Aug) | 6.5ft (2.0m) 8s |
| Best Surf | 4AM (Sun 16th Aug) | 6.5ft (2.0m) 8s |
| Most Powerful | 7AM (Sun 16th Aug) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s shaping up for our local patch over the next couple of weeks.
Honestly, the first few days are a bit of a write-off – we’ve got a real flat spell on our hands. The swell is small, and the wind is mostly cross-off, which is a tease because it’s clean but there’s just no power. From the 10th through the 13th, we’re looking at knee-to-waist high dribble with weak energy, and it’s just not worth paddling out. It’s a bit of a slow start, but don’t let it get you down – these things never last forever.
The first real glimmer of hope shows up on the morning of Friday, 14th August. The swell starts to push a bit, but it’s still a bit jumbled. The real standout, the one you want to circle on your calendar, is Saturday morning, 15th August. Carcavelos is going to see a nice jump in size to about 3.6 ft from the NW, with a period of 10 seconds. The combined energy is a solid 482, which is a nice moderate push. The wind is a light breeze from the NNW, keeping it cross-off and clean. This is your window for some fun, rippable waves before the crowds wake up. It’s a beginner-friendly spot, but it’s often crowded, so get there early.
That clean spell doesn’t last long. The afternoon on Saturday gets a bit messy with a cross-shore breeze, and then Sunday the 16th sees some onshore wind. The swell stays in the 5.6 ft to 6.2 ft range, but the wind is the spoiler.
Now, the next real highlight is a magic morning. Tuesday, 18th August – the morning session is going to be absolute glass. The wind is a perfect 0 mph, dead calm, and the swell is a clean 4.6 ft from the NNW. The water temp is sitting at a normal 69.1° for the time of year, so the wetsuit is fine. This is a morning for long, drawn-out lines. It’s a bit bigger than the weekend, so it might be a touch more challenging for the absolute beginners.
The second week gets a bit mixed. We see a pulse of bigger swell rolling in around Friday, 21st August, with 6.6 ft to 6.9 ft from the NNW. But the wind is onshore, and while the energy is strong, the conditions are marginal. The swell is actually getting a bit too big for the break, and it’s likely going to be a close-out mess, better suited for the kite surfers than a paddle session.
The end of the run is a bit of a wildcard. Sunday, 23rd August morning looks promising again with a clean 5.9 ft from the NNW and a light cross-off breeze, but it’s a short-period swell (6 seconds), so it’s a bit of a fat, walled-up wave. Then Monday, 24th August morning sees a big jump to 7.9 ft, with a massive 888 energy reading. But again, the swell is predicted to be too big for this break, and the wind is a strong 18.6 mph. This is big, powerful, and thumping – definitely only for the experts who know the bank, and even then, it’s a beast.
So, to sum it up: the first week is a slow burn, but the mornings of Saturday the 15th and Tuesday the 18th are your best bets for clean, fun waves. The second week is more about size and power, with a lot of wind and swell that’s borderline too big for the spot.
Stay stoked, and I’ll see you in the water.
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Thu morning, min 20°C on Thu night). Winds decreasing (fresh winds from the NNW on Fri afternoon, light winds from the NNW by Sat night). | ||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | |||||||||||||||
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) | NW 8 | NW 8 | NNW 7 | NW 12 | NW 12 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 |
Wave Graph | |||||||||||||||||||||
60 | 125 | 83 | 39 | 40 | 71 | 120 | 154 | 154 | 154 | 227 | 163 | 163 | 259 | 418 | 392 | 551 | 469 | 562 | 464 | 372 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on |
High Tide | 1:28PM2.66m | 2:02AM2.56m | 2:21PM2.89m | 2:51AM2.71m | 3:08PM3.07m | 3:36AM2.81m | 3:51PM3.16m | 4:18AM2.84m | 4:33PM3.16m | 4:57AM2.81m | 5:13PM3.05m | 5:36AM2.72m | 5:52PM2.86m | ||||||||
Low Tide | 7:50PM0.29m | 8:05AM0.34m | 8:41PM0.08m | 8:52AM0.17m | 9:27PM-0.05m | 9:35AM0.07m | 10:09PM-0.10m | 10:16AM0.03m | 10:49PM-0.07m | 10:56AM0.08m | 11:26PM0.05m | 11:34AM0.19m | 00:02AM0.23m | ||||||||
6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | |
— | 8:37 | — | — | 8:37 | — | — | 8:36 | — | — | 8:35 | — | — | 8:32 | — | — | 8:31 | — | — | 8:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 21 | 24 | 24 | 21 | 25 | 25 | 21 | 26 | 25 | 21 | 25 | 24 | 21 | 23 | 23 | 21 | 24 | 24 | 23 |
Feels °C | 22 | 22 | 20 | 22 | 22 | 19 | 23 | 22 | 19 | 24 | 22 | 19 | 23 | 21 | 20 | 21 | 21 | 18 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 8 | W 11 | W 6 | NW 12 | WNW 11 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | S 12 | — | NNW 8 | SW 18 | NNW 8 | NNW 9 | NNW 9 | NNW 9 |
60 | 9 | 6 | 39 | 40 | 71 | 120 | 154 | 154 | 154 | 227 | 163 | 130 | 3 | — | 392 | 12 | 469 | 562 | 464 | 372 | |
Swell 2 Height (m) Direction Period (s) | WNW 7 | S 12 | NNW 10 | WNW 10 | NW 12 | — | NNW 10 | — | — | NNW 10 | S 13 | — | S 12 | — | — | NW 10 | S 18 | SW 17 | SW 16 | SW 16 | SW 15 |
35 | 3 | 10 | 19 | 35 | — | 35 | — | — | 18 | 3 | — | 3 | — | — | 134 | 6 | 11 | 10 | 11 | 9 | |
Swell 3 Height (m) Direction Period (s) | S 12 | — | WNW 10 | NNW 9 | S 11 | — | — | — | S 13 | NW 12 | — | — | — | — | — | S 18 | — | — | — | — | W 11 |
3 | — | 10 | 8 | 2 | — | — | — | 3 | 37 | — | — | — | — | — | 6 | — | — | — | — | 2 | |
Wind waves Height (m) Direction Period (s) | — | NW 8 | NNW 7 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NNW 7 | — | NNW 8 | NNW 8 | — | — | — |
— | 125 | 83 | 49 | 58 | 86 | 48 | 62 | 82 | 53 | 102 | 118 | 163 | 259 | 418 | — | 551 | 286 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 520 | 90 | 90 | 434 | 5 | 1 | 434 | 1 | 1 | 378 | 96 | 90 | 385 | 110 | 5 | 483 | 5 | 0 | 473 | 14 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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Information about the Carcavelos Surf forecast
The above surf forecast table for Carcavelos provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Carcavelos can be found by selecting the local surf guide option on the grey menu. Our Carcavelos 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 (Carcavelos) 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 Carcavelos 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.
Carcavelos is 1 km (1 miles) from Carcavelos. If you plan a holiday in Lisboa, look for hotels and other accommodation in Carcavelos. Carcavelos has rooms for a wide range of budgets as well as car hire and transport links.











