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 Sep 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
18.4°C
2.3° 

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 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period, NW swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s period, NNW swell with 1,833 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 2ft (0.6m), 14s period with NW 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 (Sep 13) at 7AM. The primary swell is predicted to be 0.6m and 14s period with a secondary swell of 0.9m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Praia das Macas in the next 16 days are 3.0m 10s and forecast to arrive on Thursday (Sep 17) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Sunday (Sep 13) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 13th Sep)2ft (0.6m) 14s
Best Surf 7AM (Sun 13th Sep)2ft (0.6m) 14s
Most Powerful 7AM (Thu 17th Sep)10ft (3.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let's break down what's coming for Praia das Macas over the next couple of weeks.

The long and short of it is the first week to ten days is mostly a bust thanks to persistent northerly winds. There’s a real gap from now through to about mid-week on the 18th where the surf is either small, blown out, or both. The wind is mostly cross or cross-on from the north, which just ruins what little swell is in the water. The wave energy is weak to moderate during this stretch, nothing with any real punch behind it.

The first sign of life comes on the morning of Sunday the 13th. The wind swings light SSE, going cross-off and cleaning things right up. The swell is small, about 3ft from the NW, but with a long 13-second period. The combined energy is moderate at 338, so it’s a proper little groundswell. It's clean and surfable for a beginner, but it's small. Water temp is about 65°F, which is a solid 4° colder than average for this time of year, so you'll want a thicker suit or maybe a bootie.

We get a few similar windows on the mornings of the 14th, and again on the 22nd and 23rd, with clean conditions and small, manageable NW swell in the 3-4ft range. Good for a longboard, but nothing to get overly excited about.

Now, the one that gets the heart pumping is on Friday the 25th of September. That morning, we’ve got a powerful 8ft NW swell with a very long 14-second period. The combined energy is enormous at 2910, and the wind is blowing light offshore from the ESE. It’s glassy and clean. This is excellent, serious surf for experienced surfers only. At that size, it’s too big for beginners and it’s going to have some serious punch. Because it’s a long-period groundswell, it might get a little walled-up on the beach, but the offshore wind should carve it up nicely. The crowd is listed as "sometimes" so you might not be totally alone.

The morning after, Saturday the 26th, is still a good option with a 6ft NW swell under clean offshore winds, so you get a bit of a coda to the main event.

So, bottom line: a lot of waiting for one really good day. The morning of Friday the 25th is the standout – a proper, clean, powerful swell for the experienced crew. The rest of the time, pick your windows for small, clean waves.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Sun night, min 20°C on Fri afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Mon afternoon, min 17°C on Tue night). Winds increasing (light winds from the NW on Mon afternoon, strong winds from the N by Tue night).

Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
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
2
1
1
2
0
0
0
0
0
0
0
0
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)
1.2
NNW
9
1
NNW
6
1.1
NNW
7
1.1
NNW
7
1
NNW
8
0.8
NW
13
1.1
NW
12
1.3
NW
12
1
NW
11
0.8
NW
11
0.7
NW
10
0.6
NW
10
0.4
WNW
12
1.9
NNW
6
3
NNW
9
3
NNW
9
3
NNW
10
2.1
NNW
10
2.3
NNW
10
2.2
NNW
9
Wave Graph
Metric surfscale
Energy kJ
232
66
120
111
120
250
330
433
233
162
98
58
54
288
1534
1514
1578
784
1067
835
Wind (km/h)
25
N
20
N
10
N
20
NNW
20
N
5
SSE
10
WNW
10
N
10
SSE
15
NW
15
N
25
N
35
N
45
N
50
N
45
N
40
N
30
N
35
N
45
N
Wind State
cross-on
cross
cross
cross-on
cross
cross-off
on
cross-on
cross-off
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
High Tide
3:54AM2.92m
4:08PM3.11m
4:29AM2.90m
4:44PM2.99m
5:03AM2.81m
5:19PM2.80m
5:36AM2.68m
5:54PM2.57m
6:10AM2.50m
6:31PM2.32m
6:48AM2.31m
7:14PM2.08m
Low Tide
9:45PM-0.07m
9:54AM0.03m
10:19PM-0.02m
10:30AM0.08m
10:52PM0.10m
11:05AM0.19m
11:23PM0.28m
11:40AM0.36m
11:55PM0.49m
12:17PM0.56m
00:29AM0.71m
12:58PM0.78m
1:10AM0.93m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:16
7:16
7:18
7:18
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:52
7:52
7:50
7:47
7:46
7:45
7:44
 mm
Temp °C
20
21
24
25
26
26
25
27
26
24
23
20
19
19
17
19
19
19
19
18
Feels °C
17
21
23
23
24
25
24
25
25
22
21
19
16
14
9
12
12
14
14
11
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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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