
Surf Forecasts:
Carcavelos surf forecast from 5 Aug 2026:
- Best quality surf: Tuesday 11 Aug, 7AM (local time) - 2.5ft (0.7m), 11s period, NW swell with cross-offshore winds.
- Most powerful swell: Thursday 6 Aug, 7AM (local time) - 4.5ft (1.4m), 9s period, NNW swell with 297 kJ wave energy.
- Next surfable swell (1★+): Saturday 8 Aug, 7AM (local time) - 2.5ft (0.8m), 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 08) at 7AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.4m and 9s. 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 1.4m 9s and forecast to arrive on Thursday (Aug 06) 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 06) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sat 8th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 7AM (Tue 11th Aug) | 2.5ft (0.7m) 11s |
| Most Powerful | 7AM (Thu 6th Aug) | 4.5ft (1.4m) 9s |
Table - best surf conditions forecast for Carcavelos over the next 16 days.
The Lowdown
Alright, folks, let’s talk about Carcavelos. It’s a bit of a slow burn for the next week or so, but there’s some serious size and power building for the back half of this forecast window. We’ve got a lot of clean, cross-off wind, but the waves are just not doing much for a while. Hang tight.
The next few days are looking pretty bleak for a proper surf. Wednesday and Thursday are small, with the swell sitting around 1.6ft to 3ft. The energy is weak, with readings between 64 and 262. The wind is cross-off, which keeps the surface clean, but there just isn’t enough push. Friday and Saturday are a bit better in size, up to 5ft, but the period is short and the energy is still moderate. It’s the kind of surf that’s good for a splash around on a longboard, but nothing to get excited about. The 11th and 12th have a slight bump in period, but the size drops back down. There’s a real lack of quality here.
Then things start to change. From the 14th of August onwards, the swell really starts to build. We’re talking 6.5ft to 8ft from the NNW, with the energy jumping into the strong range—we’re seeing values like 504, 962, and 734. The period is around 8 seconds, so it’s a solid, powerful windswell. The wind is still cross-off, which is great for keeping it clean, but here’s the catch: this is getting too big for Carcavelos. The forecast notes say it’s predicted to be too big for the break. This is expert territory, and even then, it’s going to be a wild, powerful beast. The mornings on the 18th and 19th look slightly better with lighter winds, but the size is still significant.
So, if you’re an expert who loves a challenge, the window from the 14th to the 19th is where the real power is. It’s not going to be friendly, but it will be memorable. For everyone else, hold off. The first week is a waiting game, and the second week is a game for the brave. The water is about average for this time of year, so no real surprises there.
Short Range ForecastMostly dry. Warm (max 24°C on Thu morning, min 18°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sat morning, min 19°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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 9 | NNW 9 | NNW 9 | W 10 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | N 8 | WNW 7 | NW 11 | NW 7 | NW 9 | NW 8 | NW 7 | NNW 7 | NW 11 | NNW 10 | NNW 10 |
Wave Graph | |||||||||||||||||||||
88 | 148 | 262 | 49 | 210 | 203 | 218 | 244 | 159 | 63 | 44 | 43 | 36 | 89 | 41 | 35 | 151 | 120 | 121 | 92 | 231 | |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:31AM2.35m | 7:52PM2.37m | 8:28AM2.25m | 8:59PM2.23m | 9:43AM2.20m | 10:25PM2.16m | 11:08AM2.25m | 11:52PM2.22m | 12:25PM2.42m | 1:04AM2.38m | 1:28PM2.66m | 2:02AM2.56m | 2:21PM2.89m | 2:51AM2.71m | |||||||
Low Tide | 1:33PM0.62m | 2:07AM0.62m | 2:37PM0.74m | 3:15AM0.75m | 4:00PM0.79m | 4:40AM0.79m | 5:32PM0.71m | 6:03AM0.70m | 6:49PM0.52m | 7:10AM0.53m | 7:50PM0.29m | 8:05AM0.34m | 8:41PM0.08m | ||||||||
6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | |
— | 8:44 | — | — | 8:43 | — | — | 8:42 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 19 | 24 | 24 | 20 | 24 | 24 | 21 | 24 | 24 | 21 | 24 | 24 | 20 | 24 | 23 | 20 | 24 | 24 | 20 |
Feels °C | 21 | 20 | 17 | 20 | 20 | 17 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 21 | 19 | 22 | 20 | 18 | 22 | 22 | 18 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 7 | W 10 | W 10 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | NNW 8 | N 8 | WNW 7 | W 7 | NW 10 | W 7 | W 7 | NW 14 | NNW 12 | NW 11 | NNW 10 | WNW 11 |
60 | 27 | 53 | 49 | 49 | 46 | 28 | 28 | 26 | 63 | 44 | 43 | 36 | 25 | 38 | 25 | 32 | 99 | 121 | 92 | 24 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | W 10 | W 7 | WNW 7 | S 12 | SW 13 | S 12 | S 12 | W 6 | WNW 9 | WNW 8 | NW 12 | NW 11 | S 11 | NW 9 | NW 8 | NNW 10 | W 6 | NNW 8 | WNW 10 | WNW 9 |
88 | 56 | 26 | 9 | 3 | 7 | 3 | 3 | 3 | 26 | 22 | 6 | 30 | 2 | 41 | 35 | 10 | 12 | 32 | 31 | 16 | |
Swell 3 Height (m) Direction Period (s) | W 10 | SW 12 | SW 12 | SW 12 | — | — | — | — | S 12 | W 6 | N 11 | N 10 | S 13 | — | S 11 | W 11 | W 11 | NW 9 | W 6 | S 11 | W 6 |
19 | 6 | 6 | 6 | — | — | — | — | 3 | 2 | 2 | 2 | 3 | — | 2 | 2 | 9 | 21 | 11 | 2 | 2 | |
Wind waves Height (m) Direction Period (s) | NW 3 | NNW 9 | NNW 9 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | WNW 4 | NW 3 | NNW 7 | N 4 | NW 7 | NNW 4 | NNW 5 | NW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 10 |
2 | 148 | 262 | 148 | 210 | 203 | 218 | 244 | 159 | 1 | 2 | 29 | 9 | 89 | 17 | 24 | 151 | 120 | 58 | 85 | 231 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 463 | 5 | 208 | 520 | 5 | 96 | 517 | 170 | 0 | 359 | 72 | 90 | 396 | 5 | 5 | 434 | 170 | 90 | 434 | 16 |
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.











