Carcavelos Surf Break

Lat Long: 38.68° N 9.33° W

Carcavelos Surf Forecast and Surf Report

Issued: 12 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Carcavelos sea temperature is
20.7° C
0.1° 

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


Carcavelos surf forecast from 19 Aug 2026:

  • Best quality surf: Friday 21 Aug, 10AM (local time) - 7ft (2.1m), 11s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Friday 21 Aug, 1PM (local time) - 7ft (2.1m), 10s period, NNW swell with 997 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 1AM (local time) - 2.5ft (0.8m), 6s 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 Thursday (Aug 20) at 1AM. The primary swell is predicted to be 0.5m and 9s period with a secondary swell of 0.8m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Carcavelos in the next 16 days are 2.1m 10s and forecast to arrive on Friday (Aug 21) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Thursday (Aug 20) at 4PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 20th Aug)2.5ft (0.8m) 6s
Best Surf10AM (Fri 21st Aug)7ft (2.1m) 11s
Most Powerful 1PM (Fri 21st Aug)7ft (2.1m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s look at what’s on tap for Carcavelos over the next couple of weeks.

Right now, the water temp is sitting at 69°F, which is pretty much spot on average for this time of year, so nothing weird there.

We’ve got a bit of a slow start. The first few days are looking pretty ordinary with weak, short-period windswell and onshore or cross-shore breezes. The wave energy is weak, barely cracking 100 (126). Nothing to get excited about. It’s not until Friday morning, the 21st of August, that things start to get interesting. The swell picks up to 6 ft from the NNW, with a short period of 7 seconds, but the wind is clean and cross-offshore. The combined energy jumps to 554 (moderate). That afternoon, the same day, looks even better – swell hits 7 ft from the NNW, period stretches to 10 seconds, and the wind stays clean and cross-off. The energy is solid at 886 (moderate). This is a standout window for more experienced surfers, as 7 ft is getting up there for beginners. The longer period will give the waves more shape and push.

Saturday the 22nd still has decent size, around 5-6 ft, but the wind switches to a moderate cross-shore, making things a bit lumpy. The energy is still moderate (669-460). We then hit a few days of smaller, messier conditions through the middle of next week.

The next real highlight pops up on Friday morning, the 28th of August. The swell is 6 ft from the NW, with a period of 11 seconds – that’s a nice groundswell. The wind is clean and cross-off, and the combined energy is 679 (moderate). This is a really promising window for a solid session, especially if you like a bit of power and a longer wait between sets.

The long-range outlook is a bit of a mixed bag. Saturday the 29th has a clean morning with 4 ft from the NW, but it’s a bit weak. Then we see another pulse of energy around the 31st of August into the 1st of September, with swell hitting 6-7 ft from the NW, and periods of 9-10 seconds. The winds look clean for the mornings, but the afternoons get fresh. The energy is moderate to strong (533-824). This is promising but remember, it’s a week and a half out, so take it with a grain of salt.

Best bet: Friday the 21st of August afternoon for the biggest, cleanest swell, and Friday morning the 28th of August for a solid, well-shaped groundswell. Both are for the more experienced crew.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 24°C on Wed afternoon, min 18°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NNW by Thu afternoon).

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Sun morning. Warm (max 22°C on Sun afternoon, min 18°C on Mon night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
1
0
0
!
!
1
1
0
2
0
0
0
0
0
2
1
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)
0.9
NNW
7
0.9
NNW
7
0.8
NNW
6
0.6
WNW
9
0.6
WNW
9
1.8
NNW
7
2.1
NNW
11
2.1
NNW
10
2
NNW
10
1.8
NNW
10
1.6
NNW
9
1.3
NNW
9
1.3
NNW
8
1.3
NNW
8
1.3
NNW
8
1.3
NNW
8
1.4
NNW
8
1.4
NW
8
1
NW
7
0.9
NW
6
0.4
NNW
6
Wave Graph
Metric surfscale
Energy kJ
94
70
50
62
61
362
970
886
763
603
407
257
206
211
216
207
236
236
88
66
13
Wind (km/h)
10
SSW
10
W
5
NNW
10
NNW
25
NW
25
NNW
30
NNW
30
NNW
25
NNW
20
NW
20
WNW
5
NNW
20
SSE
20
S
25
NW
25
NW
25
NW
15
N
15
NNW
20
WNW
15
WNW
Wind State
cross-on
cross-on
glassy
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross
cross-on
cross
cross
cross
cross-off
cross-off
cross
cross-on
High Tide
7:59PM2.11m
8:27AM2.07m
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
Low Tide
1:40PM0.78m
2:01AM0.89m
2:39PM0.97m
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
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
mod rain
thunderstorm
part cloud
clear
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:54
6:56
6:56
6:56
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:27
8:24
8:23
8:22
8:21
8:20
8:17
 mm
9
2
Temp °C
23
24
22
23
23
19
21
21
18
21
21
19
20
22
20
21
21
19
21
21
20
Feels °C
23
25
23
22
21
15
17
16
14
19
18
18
18
21
17
18
18
17
19
18
19
  • Map Icons:
  • Break
  • 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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