Surf Forecasts:
Carcavelos surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 7AM (local time) - 10ft (3.0m), 9s period, NNW swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 4AM (local time) - 10ft (3.0m), 10s period, NNW swell with 1,931 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 10PM (local time) - 4.5ft (1.3m), 12s period with NW 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 (Sep 13) at 10PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 0.1m and 11s. Another secondary swell of 0.5m and 7s is also forecast. 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 10s and forecast to arrive on Thursday (Sep 17) at 4AM. 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 Tuesday (Sep 15) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 13th Sep) | 4.5ft (1.3m) 12s |
| Best Surf | 7AM (Wed 16th Sep) | 10ft (3.0m) 9s |
| Most Powerful | 4AM (Thu 17th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Alright, crew, Rusty here. Let's break down what Carcavelos is doing.
First few days are a bit of a snooze. We start Sunday the 13th with a tiny 3ft NW swell that’s clean in the morning (combined energy 339), but it's weak. By the afternoon, it gets onshore and goes to crap. Monday and Tuesday are even smaller and more ordinary, with the energy dropping below 100 on Tuesday afternoon. So, we’re looking at a flat, slow start for about three days.
Then, on Wednesday the 16th, it all kicks off. A massive 10ft NW swell arrives, but with a short period of 9 seconds and combined energy of 1362 (strong). It’s clean with cross-offshore wind, but that’s way too much power for this beginner-friendly beach. This is strictly for experts. This big, raw energy hangs around through the end of the week, with Thursday the 17th at 8ft and Friday the 18th at 8ft – all too big for the average punter here.
The real standout, the one you want to be on, is Saturday the 19th. We’ve got a 5ft NW groundswell with a proper 14-second period (combined energy 1351). That’s a long-period groundswell, and with a light offshore wind from the N, the morning session will be clean, lined-up, and packing a punch. This is the best quality of the whole forecast for experienced surfers.
The energy drops a bit Sunday the 20th with a 6ft NW swell, but it’s glassy in the morning. Monday the 21st brings another pulse that’s too big again (8ft, 14-second period, combined energy 1980). Tuesday the 22nd is a solid option with a 7ft NW swell and offshore winds, making for a clean, powerful morning. After that, the swell slowly fades through the end of the run, with some glassy, smaller days on the 24th and 27th, but nothing special.
The best of the best: Saturday morning, 19th September, for experienced surfers. That 5ft NW groundswell (14-second period) with light offshore wind will be the cleanest, most powerful wave of the bunch. Tuesday the 22nd is also a good call with 7ft NW and offshore wind for a punchy session.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Warm (max 29°C on Sun afternoon, min 18°C on Tue night). Winds increasing (calm on Sun night, strong winds from the NNW by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu morning, min 18°C on Wed morning). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the NE by Fri night). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 9 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NW 16 | NW 14 | NW 13 | NW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 250 | 330 | 478 | 233 | 162 | 98 | 74 | 138 | 363 | 1356 | 1302 | 1559 | 1508 | 1230 | 1263 | 907 | 725 | 1742 | 1318 | 1589 | 1003 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | cross-on | cross-on | 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 | off | cross-on | cross-off |
High Tide | 4:42PM2.95m | 5:01AM2.78m | 5:17PM2.76m | 5:34AM2.64m | 5:52PM2.54m | 6:09AM2.47m | 6:29PM2.29m | 6:46AM2.28m | 7:12PM2.05m | 7:35AM2.08m | 8:13PM1.85m | 8:50AM1.94m | 9:52PM1.75m | ||||||||
Low Tide | 10:28AM0.07m | 10:50PM0.10m | 11:03AM0.18m | 11:21PM0.28m | 11:38AM0.35m | 11:53PM0.48m | 12:15PM0.55m | 00:27AM0.70m | 12:56PM0.77m | 1:08AM0.92m | 1:51PM0.97m | 2:08AM1.10m | 3:22PM1.11m | 3:50AM1.18m | |||||||
 | |  | | | | | |  | | | | | | | | | | | | | |
 | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 7:49 | — | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 29 | 27 | 26 | 27 | 25 | 24 | 23 | 19 | 20 | 20 | 19 | 24 | 24 | 19 | 24 | 24 | 20 | 27 | 27 | 26 |
Feels °C | 28 | 27 | 25 | 25 | 25 | 24 | 22 | 21 | 16 | 15 | 14 | 14 | 20 | 19 | 14 | 20 | 19 | 19 | 26 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 | NW 10 | WNW 8 | WNW 11 | S 13 | SW 13 | NW 12 | NNW 10 | S 12 | SW 16 | NNW 9 | NW 14 | NW 16 | NW 14 | NW 13 | NW 13 |
| kJ | 250 | 330 | 478 | 233 | 162 | 98 | 74 | 22 | 64 | 3 | 6 | 325 | 1508 | 3 | 10 | 907 | 114 | 1742 | 1318 | 1589 | 1003 |
Swell 2 Height (m) Direction Period (s) | NNW 7 | NNW 7 | S 11 | NNW 6 | W 9 | W 9 | WNW 8 | NW 11 | — | S 13 | — | SW 12 | S 12 | S 16 | S 11 | SW 15 | NW 18 | NNW 8 | NNW 8 | SW 13 | S 13 |
| kJ | 49 | 38 | 2 | 24 | 39 | 39 | 22 | 33 | — | 3 | — | 6 | 3 | 5 | 2 | 9 | 86 | 443 | 368 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | W 9 | WNW 8 | — | WNW 9 | NNW 6 | NNW 5 | WNW 12 | S 10 | — | — | — | — | — | — | S 11 | S 15 | SW 14 | SW 14 | SW 14 | — | SW 13 |
| kJ | 40 | 44 | — | 26 | 12 | 3 | 14 | 2 | — | — | — | — | — | — | 2 | 4 | 8 | 8 | 8 | — | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 5 | — | NW 3 | NNW 5 | NNW 9 | NNW 7 | NNW 9 | NNW 9 | NNW 10 | — | NNW 10 | NNW 9 | — | NNW 9 | — | — | — | — |
| kJ | — | — | — | 2 | — | 3 | 8 | 138 | 363 | 1356 | 1302 | 1559 | — | 1230 | 1263 | — | 725 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 154 | 0 | 6 | 1 | 0 | 0 | 690 | 110 | 612 | 592 | 96 | 1 | 188 | 90 | 3 | 187 | 1 | 0 | 7 |
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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