Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 6 pm 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
21.4° C
0.9° 

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


Praia das Macas surf forecast from 11 Aug 2026:

  • Best quality surf: Sunday 16 Aug, 10AM (local time) - 10ft (3.0m), 9s period, NNW swell with cross-onshore winds.
  • Most powerful swell: Sunday 16 Aug, 1AM (local time) - 10ft (3.0m), 9s period, NNW swell with 1,603 kJ wave energy.
  • Next surfable swell (1★+): Sunday 16 Aug, 10AM (local time) - 10ft (3.0m), 9s period with NNW swell.

Best Forecast Surf Conditions for Praia das Macas this week:

The surf forecast for Praia das Macas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 16) at 10AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 0.1m and 16s. Another secondary swell of 0.1m and 16s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Praia das Macas in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Aug 16) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 16s period and expected on Monday (Aug 17) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 16th Aug)10ft (3.0m) 9s
Best Surf10AM (Sun 16th Aug)10ft (3.0m) 9s
Most Powerful 1AM (Sun 16th Aug)10ft (3.0m) 9s

Table - best surf conditions forecast for Praia das Macas over the next 16 days.


The Lowdown

Alright, mates, Rusty here. Let’s take a look at what’s on the menu for our local stretch at Praia das Macas.

Right off the bat, this forecast is a bit of a slow burner. The first few days are a write-off—nothing but choppy, cross-onshore wind and poor surf. We’re talking from Tuesday the 11th right through to Saturday the 15th of August, with weak, messy conditions. The swell energy is weak to moderate early on (around 114 to 312), and the wind just won’t play nice. It’s not worth paddling out. The water temp is sitting at 71°, which is bang on average for this time of year, so no surprises there.

The first real glimmer of hope comes on Sunday morning, the 16th of August. For a few hours, the wind drops to absolutely glassy, and we’ve got a solid 8 ft swell rolling in from the NNW with a period of 9 seconds. The energy is pumping at 1079, so there’s plenty of power. This is excellent surf, but let’s be real—at 8 ft, it’s one for the experienced crew only. Beginners, sit this one out. The catch is it’s a short window, and the afternoon goes marginal.

Now, the standout of the whole outlook—and I mean the real jewel—is Monday morning, the 17th of August. We’ve got clean conditions with a light offshore breeze from the east at just 3 mph, and a 7 ft NNW swell packing 750 units of energy. That’s a beautiful combo. The swell’s not too big, the wind’s offshore, and the break should be clean and well-shaped. This is your session. The only downside is the afternoon turns onshore again, so get it early.

After that, things get messy again. Tuesday the 18th has a clean morning but the wind shifts, and by Wednesday the 19th we’re back to cross-on slop. The swell stays big through the 20th and 21st, hitting 10 ft with energy over 1600, but the wind is all wrong—fresh to strong breezes from the NNW just ruin the surface. Honestly, for those days, the setup looks more interesting for kite surfing than paddle surfing, unless you’re a total charger.

The second week is a mixed bag of lumpy, windy, and messy. There’s a moment on the 24th and 25th with some cross-shore wind and moderate swells, but it’s never clean enough to get excited about. The swell direction is stubbornly NNW, and the wind just won’t let up.

So, bottom line: your best bet is Monday morning, the 17th of August. Get on it early, before the wind turns. Sunday morning is a close second if you’re experienced and want glassy conditions with a bit more size. After that, it’s a waiting game.

Rusty, signing off.

Short Range Forecast

Mostly dry. Warm (max 21°C on Tue afternoon, min 19°C on Tue night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Sun morning, min 20°C on Fri night). Winds decreasing (strong winds from the NNW on Sat night, light winds from the NW by Sun morning).

Tue
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
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
0
0
0
0
0
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)
0.4
NW
12
0.6
W
10
0.8
WNW
10
0.9
WNW
10
0.9
WNW
10
0.9
WNW
10
1
WNW
10
0.9
WNW
10
0.9
WNW
9
1.7
NNW
7
2.1
NNW
7
2.3
NNW
8
2.3
NNW
8
3
NNW
9
3
NNW
9
2.5
NNW
9
2.4
NNW
9
2.3
NNW
9
2.1
NNW
8
2.3
NNW
8
Wave Graph
Metric surfscale
Energy kJ
42
71
120
158
150
154
218
166
130
269
443
662
683
1603
1302
940
815
829
612
688
Wind (km/h)
30
NNW
30
N
20
N
25
NNW
30
N
20
N
30
NNW
35
N
30
N
35
NNW
40
NNW
35
NNW
35
NNW
40
NNW
15
NNW
20
NNW
25
N
25
N
35
NNW
35
NNW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
2:53AM2.75m
3:10PM3.11m
3:38AM2.85m
3:53PM3.20m
4:19AM2.88m
4:35PM3.20m
4:59AM2.85m
5:14PM3.09m
5:38AM2.76m
5:53PM2.90m
6:15AM2.62m
6:32PM2.65m
Low Tide
8:43PM0.09m
8:54AM0.18m
9:29PM-0.05m
9:37AM0.07m
10:11PM-0.10m
10:18AM0.04m
10:50PM-0.07m
10:57AM0.08m
11:28PM0.05m
11:36AM0.20m
00:04AM0.23m
12:15PM0.37m
00:40AM0.45m
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:50
6:50
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:37
8:35
8:34
8:32
8:31
8:30
 mm
Temp °C
21
20
21
21
20
21
21
20
21
21
21
21
21
20
22
22
21
21
21
20
Feels °C
19
17
20
19
17
20
19
17
19
18
17
17
17
14
23
22
19
20
17
15
  • Map Icons:
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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 Praia das Macas Surf forecast

The above surf forecast table for Praia das Macas provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia das Macas can be found by selecting the local surf guide option on the grey menu. Our Praia das Macas 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 (Praia das Macas) 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 Praia das Macas 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.

Praia das Macas is 9 km (6 miles) from Sintra. If you plan a holiday in Lisboa, look for hotels and other accommodation in Sintra. Sintra has rooms for a wide range of budgets as well as car hire and transport links.

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