Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 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 11 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 7AM (local time) - 8ft (2.5m), 10s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 17 Sep, 7AM (local time) - 8ft (2.5m), 10s period, NNW swell with 1,599 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 2.5m 10s and forecast to arrive on Thursday (Sep 17) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Sep 17) at 10AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 13th Sep)2ft (0.6m) 14s
Best Surf 7AM (Thu 17th Sep)8ft (2.5m) 10s
Most Powerful 7AM (Thu 17th Sep)8ft (2.5m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks. It’s a bit of a mixed bag, with a proper standout session to wait for, but some smaller windows of clean surf to tide you over.

Right now, we’re looking at a pretty grim start. The wind is howling out of the north, cross to cross-on, and that small swell is all over the shop with poor conditions. The water’s running at 65°F and sits a notable 4°F colder than average for this time of year, so don’t forget the extra rubber. You’ll need to be patient through the first few days.

Friday the 11th and Saturday the 12th are a write-off. Moderate to fresh breezes messing up what little waist-high swell is out there. The energy levels are moderate, around the 200 mark (moderate wave energy), but the quality just isn’t there. Don’t bother.

Things start looking up on Sunday the 13th. There’s a nice window in the morning at Praia das Macas. A clean 3ft swell from the NW with a proper long period of 13 seconds and a light SE cross-off breeze. The water’s got some good energy behind it (346), and it’ll be clean. That’s your first real chance for a fun, easy paddle. Monday the 14th morning is similar with a clean 3ft NW swell, 11-second period, and light SSE winds, though energy is a bit lower (272). Aim for the early sessions both days.

Then we hit a rough patch again. Tuesday and Wednesday see building wind, especially Wednesday the 16th when a near-gale out of the north blows out a proper 10ft swell. The energy readings for that day are massive, over 1300, which means there’s serious power in the ocean, but for a beginner-friendly beach like this, that’s a washout with the onshore wind. That one is for kite surfers only, not for paddle surfing.

We get a bit of a reprieve on Thursday the 17th morning – a clean 6ft NW groundswell with light ENE cross-off winds. That’s a fair step up in size and the energy is still high (1077), but the conditions are clean. This is for more experienced surfers, as that size at this beach will pack a punch. The afternoon gets messy again.

From the 19th through to the 22nd, we see a few more promising windows. The real standout is set for the morning of Tuesday the 22nd of September. The forecast is showing glassy conditions with a 5ft NW swell, a very long 13-second period, and a massive energy reading of 921. It’s showing “very good surf conditions” with the wind swinging light southwesterly and glassy. That is the session to circle on the calendar. It’ll be clean, long-period, and pumping with that strong, well-directed swell. Crowds are likely here, so get in early. The afternoon on the 22nd gets bigger though, up to 6ft, but goes onshore, so stick to the morning.

After that, the second week looks a bit lackluster. A few small clean windows here and there, like the 23rd morning, but the wind tends to get on it. The energy levels drop and the consistency fades. It’s not a complete write-off, but you’ll be scratching around for a wave.

On the whole, the best bet by a long shot is the glassy morning on Tuesday the 22nd of September at Praia das Macas. That NW groundswell with that period and clean conditions is your golden ticket. The Sunday 13th and Monday 14th mornings are your solid fallback for smaller, cleaner fun.

Stay frothy, and I’ll catch you in the water.
Rusty

Short Range Forecast

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

Days 4-6 Weather Summary

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

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
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
0
0
0
0
2
0
1
2
0
0
0
0
0
0
0
0
3
0
1
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
10
1.2
NNW
9
1.1
NNW
6
1.1
NNW
7
1.1
NNW
7
1.1
NNW
7
0.8
NW
13
1.1
NW
12
1.2
NW
12
1
NW
11
0.8
NW
11
0.6
NW
10
0.6
NW
10
0.4
WNW
12
1.7
NNW
6
3
NNW
9
3
NNW
9
2.5
NNW
10
1.9
NNW
9
2.1
NNW
10
1.5
NNW
9
Wave Graph
Metric surfscale
Energy kJ
135
232
82
124
115
125
250
330
393
233
165
80
58
55
197
1326
1458
1348
606
873
351
Wind (km/h)
20
NNE
25
N
20
N
10
N
15
NNW
15
N
10
SE
10
WSW
10
N
10
SSE
15
W
15
N
20
N
30
N
45
N
50
N
45
NNW
40
N
15
ENE
30
NNW
25
N
Wind State
cross
cross-on
cross
cross
cross-on
cross
cross-off
cross-on
cross-on
cross-off
on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-on
cross
High Tide
3:31PM3.15m
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
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
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
21
20
21
24
25
25
27
26
27
24
24
23
21
20
18
17
19
20
25
23
21
Feels °C
18
16
21
23
23
21
26
24
25
22
22
22
19
17
12
9
12
17
25
19
17
  • 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 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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