Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
18.6°C
2.0° 

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 16 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s period, NNW swell with cross-shore winds.
  • Most powerful swell: Saturday 19 Sep, 10AM (local time) - 8ft (2.4m), 14s period, NW swell with 2,202 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s 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 Thursday (Sep 17) at 7AM. The primary swell is predicted to be 3.0m and 10s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Praia das Macas in the next 16 days are 2.4m 14s and forecast to arrive on Saturday (Sep 19) at 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Monday (Sep 21) at 4AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 17th Sep)10ft (3.0m) 10s
Best Surf 7AM (Thu 17th Sep)10ft (3.0m) 10s
Most Powerful10AM (Sat 19th Sep)8ft (2.4m) 14s

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


The Lowdown

Alright, Rusty here. Let's chew on this Praia das Macas forecast.

This is a tricky run for the most part. There's some solid swell, but the wind is going to be a real headache. A couple of mornings will dial in perfectly, and those are what you need to aim for. The water temp feels about what you'd expect for this time of year.

Right off the bat, Wednesday the 16th and Thursday the 17th are a complete loss. We've got a 10-foot NNW swell coming in with a nasty 28 mph cross-onshore wind, making it a total mess.

Friday the 18th is still lumpy and onshore, not worth suiting up.

The first real standout is Saturday the 19th. This is the one to call in sick for. Dead calm, glassy morning. That 8-foot NW swell with a very long 14-second period is going to push through with serious power and shape. The energy is pumping (2210). This is big and clean, meaning it's for the experienced crew only – leave the foamie at home. The breeze picks up onshore in the afternoon, so make sure you're in the water at first light.

Sunday the 20th morning is also a good call. A clean 5-6 foot NW groundswell (12s) with a light offshore breeze from the ESE. It’s not as big as Saturday but still a quality session, with moderate energy (822). The afternoon gets messy again. Monday and Tuesday mornings offer a couple of clean, smaller 3-4 foot waves with light offshores. Good for a log or a learner.

The second absolute standout is a week out, on Wednesday the 23rd. Another glassy, dead-calm morning, with a 5-6 foot WNW swell and a very long 15-second period. That's pure, deep-water energy (1381) that will wrap in and offer up some of the cleanest, longest rides of the whole sixteen days. It might break a bit straight with that long period at a beach break, but on a clean, glassy day, you won't care.

After that, the bottom drops out. The swell fades to tiny, worthless waves from the 25th through the 27th, all under choppy cross-onshore winds.

Then there's a pulse of NW swell hitting Monday the 28th and Tuesday the 29th, but the wind is a killer – straight cross-onshore, chopping up what would be a solid 7-8 foot, 15-second groundswell on Monday afternoon. A total heartbreaker, but that's the way it is.

Bottom line: Saturday the 19th morning and Wednesday the 23rd morning are your clear winners. The rest of the time, it’s a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu morning, min 17°C on Tue night). Mainly strong winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Sun night, min 19°C on Fri night). Wind will be generally light.

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
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
1
0
0
0
0
2
4
2
2
3
0
3
2
1
1
2
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
NNW
9
3
NNW
9
3.5
NNW
10
2.5
NNW
10
2.5
NNW
9
2.5
NNW
9
2.4
NNW
9
1.9
NNW
8
1.8
NW
15
2.4
NW
14
2.1
NW
13
1.8
NW
13
1.7
NW
12
1.6
NW
11
1.5
NW
11
1.1
NW
10
1.4
NW
12
1.4
NW
12
1.3
NW
11
1.1
NW
12
1.3
WNW
16
Wave Graph
Metric surfscale
Energy kJ
1441
1480
2133
1203
1034
1118
847
488
1326
2202
1589
1028
822
673
505
255
574
528
413
298
828
Wind (km/h)
45
N
50
N
45
N
25
NNE
40
N
40
N
30
N
30
NNW
20
N
0
E
10
NW
15
N
15
ESE
20
NW
15
NE
10
SE
15
WNW
20
N
10
SSE
15
W
10
N
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross
cross-on
cross-on
cross
glassy
on
cross
off
on
cross-off
off
on
cross
cross-off
on
cross
High Tide
6:10AM2.50m
6:31PM2.32m
6:48AM2.31m
7:14PM2.08m
7:37AM2.11m
8:15PM1.88m
8:51AM1.96m
9:54PM1.78m
10:36AM1.95m
11:34PM1.85m
11:57AM2.08m
00:34AM2.01m
12:48PM2.28m
1:16AM2.21m
Low Tide
12:17PM0.56m
00:29AM0.71m
12:58PM0.78m
1:10AM0.93m
1:54PM0.99m
2:10AM1.11m
3:24PM1.12m
3:52AM1.20m
5:17PM1.08m
5:34AM1.10m
6:26PM0.92m
6:33AM0.92m
7:09PM0.71m
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:20
7:20
7:22
7:22
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:42
7:39
7:38
7:37
7:36
 mm
Temp °C
17
19
19
20
19
18
20
20
20
22
22
23
26
26
27
26
25
27
25
24
24
Feels °C
10
11
12
14
13
11
17
16
19
20
19
20
25
23
24
25
23
22
24
22
22
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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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