Surf Forecasts:
Carcavelos surf forecast from 21 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★+): Saturday 22 Aug, 4AM (local time) - 5ft (1.5m), 10s 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 22) at 4AM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.5m 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 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.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 22nd Aug) | 5ft (1.5m) 10s |
| 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 folks, Rusty here. Let's have a look at what's cookin' for our local stretch over the next couple of weeks.
Right off the bat, I gotta be straight with you – the next week to ten days are lookin' pretty grim. We've got a lot of onshore wind, lumpy conditions, and a lot of "poor surf" in the cards. The water temp is sittin' pretty average for this time of year at 70°, so nothin' weird goin' on there. For Carcavelos, we're lookin' at a long, frustrating gap until things finally start to look worthwhile.
There's a little flicker of hope on Friday morning the 21st of August with some 3ft NW swell, an 11-second period (that's got some decent push to it), and clean conditions with a cross-offshore breeze. The combined energy is moderate at best (498). But honestly, it's small and the overall score is low. Saturday the 22nd has a touch more size but onshore wind kills it. Sunday the 23rd sees a bump in energy with a 7ft W swell (combined energy of 1029), but it's gettin' smashed by a strong SSE wind. That's gonna be a mess. We get a bit of a window Thursday the 27th with a clean 5ft NW swell and cross-shore wind, but again, nothin' to write home about.
Now, hold on to your boards, because things finally start to look up as we head into the first week of September. The standout window is shaping up to be Friday the 4th of September. Both the morning and afternoon are looking prime with a solid 7ft to 7ft NW/NNW swell, clean conditions, and a stiff cross-offshore breeze. The combined energy is strong, hittin' 592 and 666. The catch? The data says it might be a bit too big for this spot, which means this is one for the experienced crew only. If you're a beginner, give this one a miss. If you've got the skills, this could be the best session of the whole 16-day stretch. The Saturday the 5th is still decent with 7ft swell and clean conditions, but the wind picks up a bit.
In short, it's a long wait. Most of the next two weeks are a bust. But if you're an expert, mark your calendar for Friday the 4th of September. That's the one.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Sun morning. Warm (max 22°C on Sun afternoon, min 18°C on Fri night). Winds increasing (light winds from the NW on Fri night, fresh winds from the SSE by Sun morning). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed morning. Warm (max 22°C on Mon afternoon, min 19°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 10 | NNW 10 | NNW 10 | NNW 9 | WNW 13 | WNW 11 | W 10 | WSW 9 | WSW 8 | W 8 | W 7 | W 7 | W 7 | WNW 6 | WNW 6 | WNW 6 | WNW 8 | WNW 9 | NW 9 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 763 | 500 | 346 | 253 | 1162 | 778 | 575 | 826 | 723 | 596 | 311 | 154 | 110 | 70 | 53 | 101 | 207 | 486 | 430 | 400 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | glassy | on | cross-on | on | cross-on | cross | cross | cross | cross-off |
High Tide | 10:34PM1.82m | 11:14AM1.96m | 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 | |||||||
Low Tide | 4:08PM1.07m | 4:38AM1.12m | 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 | |||||||
 |  | | |  |  |  |  | | | |  |  | | | | | | | | |
 | — | — | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — |
 | 8:23 | — | — | 8:22 | — | — | 8:21 | — | — | 8:20 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — |
mm | — | — | — | — | — | 8 | 4 | 7 | 2 | 1 | — | — | — | — | 3 | — | — | — | — | — |
Temp °C | 21 | 18 | 21 | 21 | 20 | 20 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 19 |
Feels °C | 16 | 15 | 20 | 19 | 20 | 16 | 20 | 19 | 19 | 20 | 21 | 22 | 22 | 22 | 22 | 20 | 20 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | WNW 9 | NNW 10 | NNW 9 | WNW 13 | WNW 11 | W 10 | NNW 8 | N 8 | W 8 | W 7 | W 7 | W 7 | WNW 6 | WNW 6 | WNW 6 | WNW 8 | WNW 9 | SW 11 | SW 11 |
| kJ | 21 | 62 | 346 | 253 | 1162 | 778 | 575 | 12 | 5 | 596 | 311 | 154 | 110 | 70 | 53 | 101 | 207 | 486 | 5 | 4 |
Swell 2 Height (m) Direction Period (s) | WNW 11 | SSW 14 | W 9 | W 9 | NNW 9 | N 8 | N 8 | SSW 13 | SW 13 | S 6 | NNW 8 | N 7 | N 7 | WNW 10 | NW 10 | SW 11 | SW 11 | SW 11 | — | — |
| kJ | 12 | 18 | 39 | 39 | 113 | 50 | 33 | 17 | 7 | 49 | 11 | 1 | 1 | 10 | 4 | 5 | 5 | 5 | — | — |
Swell 3 Height (m) Direction Period (s) | — | NNW 12 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | N 8 | — | NNW 8 | SW 12 | SW 12 | SW 12 | SW 12 | W 9 | NW 9 | SW 11 | — | — | — |
| kJ | — | 14 | 20 | 20 | 19 | 18 | 17 | 1 | — | 6 | 6 | 6 | 6 | 6 | 2 | 3 | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 10 | NNW 10 | — | — | — | SSW 5 | SSW 6 | WSW 9 | WSW 8 | SW 7 | — | — | — | — | — | WNW 6 | — | — | NW 9 | NW 8 |
| kJ | 763 | 500 | — | — | — | 87 | 131 | 826 | 723 | 65 | — | — | — | — | — | 64 | — | — | 430 | 400 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 434 | 96 | 5 | 434 | 28 | 77 | 166 | 108 | 502 | 241 | 1 | 0 | 76 | 152 | 108 | 517 | 1 | 1 | 438 | 1 |
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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