Surf Forecasts:
Carcavelos surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 1PM (local time) - 7ft (2.2m), 8s period, NNW swell with cross-offshore winds.
- Most powerful swell: Friday 21 Aug, 10AM (local time) - 10ft (3.0m), 8s period, NNW swell with 1,147 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 1PM (local time) - 7ft (2.2m), 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 Saturday (Aug 15) at 1PM. The primary swell is predicted to be 2.2m and 8s period with a secondary swell of 0.1m and 18s. 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 3.0m 8s and forecast to arrive on Friday (Aug 21) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 15th Aug) | 7ft (2.2m) 8s |
| Best Surf | 1PM (Sat 15th Aug) | 7ft (2.2m) 8s |
| Most Powerful | 10AM (Fri 21st Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Hey, Rusty here again, giving you the same outlook but in feet and miles per hour.
So, for Carcavelos, we’ve got a bit of a slow burn to start. The water is about average for the season, so no wetsuit worries there.
The absolute winner of this whole period is Wednesday 26 August in the morning. You’re looking at a 7ft swell out of the NNW, with a gentle offshore breeze. That offshore wind is going to make the waves clean and lined up. The combined wave energy is moderate (545), so there’s plenty of grunt. Because it’s over 7ft, this is expert territory – leave the soft tops at home.
In the lead-up, Saturday 15th and Sunday 16th mornings look clean and glassy, but the swell is hanging around 7ft to 7ft. That’s big, powerful stuff (combined energy of 523 and 710), and it’s going to be too much for most. Not a beginner's wave.
The rest of the window is a mixed bag. There’s a decent, clean morning on Thursday 27th with 6ft waves and a combined energy of 399, which is rideable, but the wind stays moderate and the quality is just okay.
Honestly, if you can only surf one day, make it Wednesday 26th morning. That’s the one.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 28°C on Sun afternoon, min 20°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Sun morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Tue morning, min 18°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the NNW by Thu afternoon). | ||||||||||||||||||||
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 | NW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | WNW 10 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 517 | 617 | 771 | 700 | 422 | 232 | 361 | 306 | 212 | 228 | 172 | 142 | 89 | 67 | 55 | 65 | 541 | 785 | 1147 | 891 | 789 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | glassy | cross | cross-off | cross | on | cross-on | on | on | on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:13PM3.05m | 5:36AM2.72m | 5:52PM2.86m | 6:14AM2.59m | 6:31PM2.62m | 6:52AM2.42m | 7:12PM2.36m | 7:35AM2.24m | 7:59PM2.11m | 8:27AM2.07m | 9:03PM1.91m | 9:42AM1.96m | 10:34PM1.82m | ||||||||
Low Tide | 10:56AM0.08m | 11:26PM0.05m | 11:34AM0.19m | 00:02AM0.23m | 12:13PM0.36m | 00:38AM0.45m | 12:54PM0.57m | 1:16AM0.67m | 1:40PM0.78m | 2:01AM0.89m | 2:39PM0.97m | 3:04AM1.06m | 4:08PM1.07m | ||||||||
 |  |  | | |  | | | | | | | | | | | | | | | | |
 | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:56 | — | — |
 | — | 8:31 | — | — | 8:30 | — | — | 8:29 | — | — | 8:28 | — | — | 8:27 | — | — | 8:24 | — | — | 8:23 | — |
mm | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 26 | 28 | 25 | 27 | 26 | 24 | 24 | 24 | 22 | 24 | 24 | 22 | 23 | 23 | 19 | 21 | 22 | 19 |
Feels °C | 21 | 21 | 19 | 28 | 27 | 24 | 27 | 26 | 26 | 24 | 24 | 24 | 24 | 24 | 23 | 21 | 19 | 14 | 15 | 16 | 14 |
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 8 | NNW 8 | NNW 7 | NNW 7 | SSW 13 | WNW 9 | WNW 9 | W 9 | SSW 14 |
| kJ | 6 | 12 | 11 | 700 | 422 | 232 | 361 | 306 | 212 | 228 | 172 | 142 | 89 | 67 | 34 | 57 | 17 | 29 | 15 | 13 | 18 |
Swell 2 Height (m) Direction Period (s) | — | — | S 17 | SW 16 | SW 16 | SW 15 | SW 15 | W 9 | WNW 8 | WNW 8 | SW 16 | WNW 8 | WNW 8 | SSW 3 | WNW 10 | WNW 9 | SW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | — | — | 5 | 10 | 11 | 9 | 8 | 6 | 13 | 11 | 38 | 13 | 12 | 4 | 55 | 65 | 10 | 21 | 21 | 21 | 18 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 15 | SW 18 | SW 15 | SSW 16 | SW 14 | W 8 | SSW 15 | SSW 14 | WNW 11 | SSW 4 | SSW 13 | — | NW 15 | — | — | — |
| kJ | — | — | — | — | — | 9 | 12 | 9 | 26 | 7 | 10 | 21 | 20 | 23 | 4 | 17 | — | 8 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 8 | NW 8 | NNW 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 517 | 617 | 771 | — | — | — | — | — | — | — | — | — | — | — | — | — | 541 | 785 | 1147 | 891 | 789 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 170 | 612 | 5 | 5 | 108 | 0 | 6 | 448 | 76 | 14 | 482 | 20 | 6 | 14 | 0 | 0 | 186 | 202 | 202 | 625 | 202 |
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.
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