Carcavelos Surf Break

Lat Long: 38.68° N 9.33° W

Carcavelos Surf Forecast and Surf Report

Issued: 6 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Carcavelos sea temperature is
20.6° C
0.2° 

Carcavelos surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Carcavelos surf forecast from 20 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 7AM (local time) - 7ft (2.1m), 11s period, W swell with cross-shore winds.
  • Most powerful swell: Sunday 23 Aug, 7AM (local time) - 7ft (2.1m), 11s period, W swell with 1,127 kJ wave energy.
  • Next surfable swell (1★+): Saturday 22 Aug, 7AM (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 7AM. 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 2.1m 11s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 22nd Aug)5ft (1.5m) 10s
Best Surf 7AM (Sun 23rd Aug)7ft (2.1m) 11s
Most Powerful 7AM (Sun 23rd Aug)7ft (2.1m) 11s

Table - best surf conditions forecast for Carcavelos over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s see what’s coming up down at Carcavelos. This is a tough stretch, with a lot of messy conditions and poor surf in the near future. The combined swell energy is very low in the first few days, barely hitting 97 (weak) on the 20th, so it’s not looking great to kick things off.

The first real glimmer of hope is Friday morning the 21st. We’ve got a 5ft swell from the NNW, but it’s short period at 7 seconds, so it’ll be a bit lumpy. The wind is cross-offshore though, keeping it clean. The combined energy jumps to 511 (moderate), but it’s still a marginal call, so don’t get too excited. Saturday morning the 22nd is similar, with 5ft from the NNW and light cross winds, but the period is still short, and the energy sits at 478 (moderate). Not a standout by any means.

The rest of that week and into the next is a write-off. From Saturday afternoon the 22nd all the way through Thursday the 27th, it’s poor surf conditions, with onshore and cross-onshore winds messing everything up. There’s a couple of morning windows, but the wind states are all wrong—choppy, cross-chop, onshore junk. The water temp is around 69°F right now, which is about average for the time of year (anomaly of -0.4°F), so nothing unusual there.

Then we hit the big one. Friday morning the 28th is the real standout of this entire 16-day window. A solid 10ft NW groundswell with a long 12-second period rolls in. The combined energy is a massive 2183 (strong to very strong). Wind is cross-offshore from the north at 12 mph, so it’ll be clean. The problem is, this is way too big for beginners—over 8ft, experts only. Carcavelos is an exposed beach break, and this long-period groundswell might make it close out or break a bit too straight, but for those with the skills, it’s the best on offer by a mile. The afternoon drops to 8ft, still huge, with fresh NNW winds, still cross-off.

Saturday the 29th is a drop-off, with 6ft NW at 10 seconds, but it’s marginal, and the wind picks up. After that, it’s a slow fade into the first couple of days of September with clean but small waves—3ft to 5ft—and cross-off winds, but the energy is low (around 200-300, weak to moderate), and the periods are short again.

Late in the window, on Thursday the 3rd of September, we get another pulse: 7ft from the NNW with a short 8-second period and moderate energy of 1040 (strong). Again, too big for beginners, but with clean cross-off winds. The morning of Friday the 4th looks the most user-friendly: 5ft from the NNW at 7 seconds, with light north winds and clean conditions. Combined energy sits at 214 (weak to moderate). It’s a small window, but the only real “good surf” flagged in the whole period.

So, to sum it up: the first week is mostly rubbish. Friday the 28th is the big, expert-only day if you’re brave. The morning of Friday the 4th of September is a small, clean option for the more moderate crowd. Keep an eye on the forecasts—things can change. Stay stoked.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 23°C on Thu afternoon, min 18°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu afternoon, light winds from the WSW by Sat night).

Days 5-7 Weather Summary

Moderate rain (total 14mm), heaviest on Sun night. Warm (max 22°C on Sun afternoon, min 20°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun night, light winds from the W by Mon night).

Thu
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
1
2
1
0
2
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
WNW
9
1.8
NW
7
1.6
NNW
7
2
NNW
10
1.7
NNW
10
1.5
NNW
10
1.3
NNW
9
1.3
WNW
14
1.9
W
11
1.6
W
10
1.7
W
9
1.9
WSW
8
1.5
W
7
1.2
W
7
1.1
WNW
6
1
WNW
6
1
WNW
6
1.2
WNW
7
1.2
WNW
8
1
NW
8
Wave Graph
Metric surfscale
Energy kJ
61
349
235
763
555
419
272
694
835
500
455
419
246
134
108
80
78
117
155
114
Wind (km/h)
15
WNW
25
NNW
25
NNW
30
NNW
20
NNW
10
WNW
15
WSW
10
S
25
SSE
25
S
25
S
30
SSW
20
SW
10
WSW
10
SW
15
SW
15
SW
10
W
20
W
15
WSW
Wind State
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
High Tide
9:03PM1.91m
9:42AM1.96m
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
Low Tide
3:04AM1.06m
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
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
thunderstorm
thunderstorm
rain showers
part cloud
clear
clear
cloud
cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:56
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:24
8:23
8:22
8:21
8:20
8:17
8:16
 mm
3
7
4
Temp °C
23
19
21
21
18
21
21
20
22
22
21
22
22
21
22
22
21
22
22
21
Feels °C
23
15
17
16
15
20
19
21
20
20
20
19
21
22
21
21
21
22
20
20
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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