Surf Forecasts:
Carcavelos surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 4AM (local time) - 7ft (2.2m), 12s period, W swell with cross-shore winds.
- Most powerful swell: Sunday 23 Aug, 4AM (local time) - 7ft (2.2m), 12s period, W swell with 1,412 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 4AM (local time) - 7ft (2.2m), 12s period with W 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 23) at 4AM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 0.7m and 9s. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Carcavelos in the next 16 days are 2.2m 12s and forecast to arrive on Sunday (Aug 23) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Aug 28) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sun 23rd Aug) | 7ft (2.2m) 12s |
| Best Surf | 4AM (Sun 23rd Aug) | 7ft (2.2m) 12s |
| Most Powerful | 4AM (Sun 23rd Aug) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Alright, let’s talk about what’s ahead for the next couple of weeks. Right now, it’s a bit of a rough start. We’re looking at a stretch of days with poor conditions and nothing rideable to speak of from Saturday the 22nd of August right through to the end of that week. Honestly, it’s a bit of a bummer – the wind is messy, and the swell is just not cooperating at all. That first few days, you’re better off leaving the boards in the car.
The first real glimmer of hope comes on Tuesday the 25th of August in the morning. It’s not a classic, but you might get a few waves. The swell is a weak 5ft from the W, with a short period of 7 seconds, and the combined energy is only 213 (weak). The wind is light and onshore, making it pretty marginal. The afternoon is even smaller, so don’t get your hopes up.
We’re in a bit of a dry spell until the 28th of August rolls around. That Friday morning, things start to look a lot more interesting. The wind is a clean cross-offshore from the NNW, and the swell is 7ft from the NW with a 10-second period. The combined energy is 851 (moderate). That’s a solid, powerful groundswell heading in. The break is Carcavelos, and it’s exposed to the W, which is a decent match. But here’s the thing – that 7ft is getting big for this spot. It’s pushing into the “too big for beginners” zone, and the data says it’s actually too big for this break. The afternoon gets even bigger at 8ft, with a 11-second period and 1340 combined energy (strong). That’s expert-only territory. So, if you’re a confident surfer, Friday the 28th could be a standout, but it’s a beast.
Saturday the 29th of August is still worth a look, especially the morning. The swell drops slightly to 6ft from the NW, 10 seconds, and the combined energy is 711 (moderate). The wind is still cross-off from the N, so it’s clean. The water temp is about 70°F, which is pretty normal for this time of year, so no need for a thick suit. Carcavelos can get crowded, and with this quality, expect it to be busy.
Sunday the 30th of August brings a smaller, more manageable 4ft from the NNW with an 8-second period. The combined energy is 253 (weak). The wind is light and cross-off, so it’ll be glassy. This is a good one for a beginner or someone looking for a fun, less intense session. The morning is the pick.
Monday the 31st of August is similar – 3ft from the NNW, 8 seconds, and light cross-off wind. Clean, but small. Again, a nice morning session for the intermediates.
After that, from the 1st of September onwards, the swell holds around the 4ft to 5ft mark, but it’s all NNW or NW with short periods (6-8 seconds). The wind is clean, cross-offshore, but the wave quality is described as poor. The energy is weak to moderate, but it’s just not coming together for a good wave. There’s a weird spike on the 5th of September with a 1ft, 13-second period swell, but the combined energy is just 47 (weak) – that’s a tiny, long-period groundswell, which is tricky at a beach break. Not worth the paddle.
Overall, the standout is Friday the 28th of August for the experienced crew, with Saturday the 29th a close second. For the rest of us, Sunday the 30th and Monday the 31st are the best bet for a clean, small wave. The second week is mostly a washout with poor conditions.
Keep your eyes on the forecasts, but for now, that’s the story.
Rusty
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Warm (max 22°C on Sun afternoon, min 19°C on Sat night). Winds decreasing (fresh winds from the S on Sun morning, light winds from the WNW by Mon night). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed morning. Warm (max 22°C on Tue afternoon, min 18°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | ||||||||||||||
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 9 | WNW 13 | WNW 11 | W 10 | WSW 9 | WSW 8 | WSW 8 | W 7 | W 7 | W 7 | WNW 7 | WSW 6 | W 6 | WNW 7 | WNW 8 | WNW 8 | NW 9 | NW 10 | NW 11 | NW 11 |
Wave Graph | ||||||||||||||||||||
253 | 1179 | 698 | 563 | 888 | 878 | 669 | 311 | 203 | 134 | 77 | 47 | 105 | 181 | 390 | 433 | 612 | 849 | 1340 | 1171 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 00:03AM1.88m | 12:28PM2.09m | 1:03AM2.02m | 1:19PM2.27m | 1:45AM2.19m | 1:59PM2.46m | 2:21AM2.35m | 2:33PM2.64m | 2:53AM2.49m | 3:05PM2.79m | 3:25AM2.61m | 3:37PM2.89m | 3:56AM2.70m | |||||||
Low Tide | 5:47PM1.03m | 6:06AM1.04m | 6:54PM0.89m | 7:03AM0.88m | 7:39PM0.71m | 7:44AM0.69m | 8:15PM0.53m | 8:19AM0.52m | 8:47PM0.36m | 8:51AM0.36m | 9:18PM0.22m | 9:23AM0.25m | 9:49PM0.13m | |||||||
— | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | |
8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — | — | 8:14 | — | |
mm | — | — | 3 | 1 | 10 | 3 | — | — | — | — | — | 4 | — | 1 | — | — | — | — | — | — |
Temp °C | 21 | 20 | 21 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 19 |
Feels °C | 19 | 20 | 17 | 20 | 18 | 19 | 20 | 21 | 22 | 22 | 21 | 21 | 20 | 20 | 19 | 18 | 18 | 17 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | WNW 13 | WNW 11 | W 10 | N 8 | N 8 | NNW 8 | W 7 | W 7 | W 7 | WNW 7 | NW 6 | W 6 | WNW 7 | WNW 8 | WNW 8 | NW 9 | NW 10 | NW 11 | NW 11 |
253 | 1179 | 698 | 563 | 10 | 5 | 6 | 311 | 203 | 134 | 77 | 31 | 105 | 181 | 390 | 433 | 612 | 849 | 1340 | 1171 | |
Swell 2 Height (m) Direction Period (s) | W 9 | NNW 9 | SW 6 | N 8 | SSW 13 | SW 13 | SW 13 | N 8 | N 7 | N 7 | WNW 10 | WNW 9 | NW 9 | SW 11 | SW 11 | SW 11 | SW 11 | S 10 | — | — |
39 | 113 | 54 | 33 | 17 | 7 | 6 | 5 | 4 | 1 | 10 | 8 | 3 | 5 | 5 | 5 | 4 | 2 | — | — | |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | N 8 | SSW 13 | — | — | — | SW 12 | SW 12 | SW 12 | SW 12 | NW 10 | SW 11 | — | — | — | — | — | — | — |
20 | 19 | 50 | 17 | — | — | — | 6 | 6 | 6 | 6 | 4 | 5 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | SSE 4 | SSW 6 | WSW 9 | WSW 8 | WSW 8 | — | — | — | — | WSW 6 | — | — | — | — | — | — | — | — |
— | — | 41 | 154 | 888 | 878 | 669 | — | — | — | — | 47 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 434 | 28 | 108 | 174 | 108 | 440 | 240 | 1 | 9 | 76 | 14 | 562 | 490 | 186 | 108 | 438 | 0 | 1 | 74 | 1 |
Best forecast wave conditions in Lisboa | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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.











