
Surf Forecasts:
Carcavelos surf forecast from 8 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10PM (local time) - 7ft (2.1m), 8s period, NNW swell with cross-offshore winds.
- Most powerful swell: Thursday 10 Sep, 7PM (local time) - 6ft (1.9m), 10s period, NNW swell with 763 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 10PM (local time) - 7ft (2.1m), 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 Wednesday (Sep 09) at 10PM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 0.2m and 13s. Another secondary swell of 0.1m and 14s 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 1.9m 10s and forecast to arrive on Thursday (Sep 10) at 7PM. 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 Friday (Sep 11) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 9th Sep) | 7ft (2.1m) 8s |
| Best Surf | 10PM (Wed 9th Sep) | 7ft (2.1m) 8s |
| Most Powerful | 7PM (Thu 10th Sep) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming down the line for Carcavelos.
Honestly, the next couple of weeks are a bit of a mixed bag. We’ve got some swell showing up, but the wind and conditions are gonna be the main thing to watch. The water temp is sitting around 70°, which is pretty much where it should be for this time of year, so no surprises there.
Kicking off on Tuesday the 8th, we’ve got a clean 4ft swell from the WNW with a 10 second period. Combined energy is moderate at 281. It’s a cross-off wind from the N at 12 mph, so it’ll be clean but the forecast says it’s marginal. Not the best start, but you could get a few if you’re keen. The afternoon drops off in quality.
Wednesday the 9th looks average at best. Morning is small and messy, then the afternoon sees a jump to 6ft from the NNW, but the wind swings to 19 mph cross-off and the quality is poor. That’s more of a washing machine.
There’s a little window on Thursday the 12th, Saturday morning. Glassy conditions with a NE wind at just 3 mph, and a 4ft NNW swell at 8 seconds. Combined energy is 245. It’s clean and glassy, and the forecast says “expect good surf conditions.” That’s your best early call. The break is exposed to the west, but the swell is coming from the NNW, so it’ll wrap in alright.
Now, the standout. Sunday the 13th, Saturday morning, is looking like the pick of the whole run. We’ve got a 4ft swell from the NW, but the period jumps to 13 seconds – that’s proper groundswell energy – with combined energy at a solid 571. Wind is light from the east at just 3 mph, cross-off and clean. The forecast says “expect very good surf conditions.” This is the one to circle. Just remember, Carcavelos is a beach break, and with that longer period, it might grind a bit straight, but the conditions should make it fun.
After that, we get a few more mornings with glassy conditions, like Monday the 14th and again on Saturday the 19th and Sunday the 20th, but the swell drops off. Expect clean, smaller waves in the 3ft to 4ft range. Good for a longboard or a foamie.
Towards the end of the window, on Wednesday the 23rd, we see a very long-period groundswell from the NW at 19 seconds, with a combined energy of 316, but it’s only 2ft in the morning and then jumps to 5ft in the afternoon with a cross-on wind. That’s one to keep an eye on, but it’s far out and uncertain.
For beginners, most of the surf sits between 2ft and 4ft, which is fine, but the stronger afternoons with 6ft to 6ft and fresh winds will be too much. Stick to the glassy mornings.
Overall, the pick is clear: Sunday the 13th morning. Clean, solid groundswell, light winds. Get on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 18°C on Tue night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 30°C on Sat afternoon, min 21°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
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) | WNW 10 | WNW 9 | NW 9 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NW 11 | NNW 10 | NNW 7 | NNW 6 | NNW 6 | NNW 8 | NNW 8 | NW 15 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 |
Wave Graph | |||||||||||||||||||||
281 | 180 | 152 | 95 | 382 | 459 | 336 | 263 | 612 | 176 | 160 | 107 | 186 | 186 | 147 | 437 | 435 | 503 | 350 | 224 | 117 | |
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 | glassy | cross | cross-off | cross-off | on | cross-off | glassy | cross-on | cross-off |
High Tide | 1:19PM2.69m | 1:53AM2.56m | 2:07PM2.91m | 2:36AM2.72m | 2:50PM3.06m | 3:15AM2.83m | 3:29PM3.11m | 3:52AM2.88m | 4:06PM3.08m | 4:27AM2.86m | 4:42PM2.95m | 5:01AM2.78m | 5:17PM2.76m | ||||||||
Low Tide | 7:43PM0.25m | 7:54AM0.33m | 8:28PM0.07m | 8:36AM0.16m | 9:07PM-0.04m | 9:15AM0.06m | 9:43PM-0.07m | 9:52AM0.03m | 10:17PM-0.02m | 10:28AM0.07m | 10:50PM0.10m | 11:03AM0.18m | 11:21PM0.28m | ||||||||
7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | |
— | 7:57 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — | — | 7:49 | — | — | 7:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 21 | 21 | 21 | 18 | 25 | 24 | 20 | 25 | 25 | 22 | 28 | 30 | 27 | 29 | 27 | 27 | 25 | 25 | 24 |
Feels °C | 20 | 20 | 21 | 17 | 16 | 13 | 23 | 20 | 16 | 23 | 22 | 22 | 27 | 28 | 24 | 27 | 25 | 25 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | NW 9 | NW 8 | NW 12 | NW 10 | NW 11 | NW 11 | W 7 | NNW 10 | W 7 | NNW 9 | NNW 8 | WNW 9 | NNW 7 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 10 |
281 | 180 | 152 | 95 | 6 | 65 | 185 | 263 | 4 | 96 | 4 | 17 | 186 | 50 | 147 | 437 | 435 | 503 | 350 | 224 | 117 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 13 | N 15 | NW 12 | NW 10 | WNW 7 | W 10 | W 7 | W 8 | W 11 | WNW 10 | NW 18 | W 9 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | N 6 |
— | — | — | 4 | 4 | 39 | 80 | 10 | 2 | 4 | 1 | 9 | 52 | 12 | 41 | 94 | 66 | 62 | 54 | 42 | 17 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | WNW 8 | — | — | W 9 | — | W 7 | SW 13 | NW 12 | NW 15 | NW 9 | NNW 8 | S 11 | W 9 | W 9 | WNW 9 |
— | — | — | — | — | — | 11 | — | — | 2 | — | 4 | 7 | 6 | 137 | 40 | 64 | 2 | 6 | 14 | 15 | |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 4 | — | NNW 6 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 10 | NNW 7 | NNW 6 | NNW 6 | — | NNW 8 | — | — | — | — | — | — | — |
24 | 16 | — | 74 | 382 | 459 | 336 | 249 | 612 | 176 | 160 | 107 | — | 186 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 453 | 96 | 281 | 434 | 96 | 1 | 477 | 5 | 16 | 187 | 0 | 0 | 72 | 0 | 0 | 76 | 0 | 0 | 159 | 0 |
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.










