Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
19.9°C
0.6° 

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 29 Aug 2026:

  • Most powerful swell: Saturday 29 Aug, 4AM (local time) - 6ft (1.9m), 10s period, NW swell with 673 kJ wave energy.

Best Forecast Surf Conditions for Praia das Macas this week:

The most powerful waves expected at Praia das Macas in the next 16 days are 1.9m 10s and forecast to arrive on Saturday (Aug 29) at 4AM. 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 Tuesday (Sep 01) at 7AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Sat 29th Aug)6ft (1.9m) 10s

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


The Lowdown

Alright, grab your coffee, let’s talk about what’s happening at Praia das Macas. We’ve got a long stretch ahead, and honestly, it’s a bit of a rough road before any real hope shows up. The water’s sitting at about 68°, which is pretty much normal for this time of year – nothing wild there.

Right now, and for well over a week, it’s a tough watch. We’ve got a solid amount of swell rolling in from the 28th of August right through to early September, with combined energy numbers jumping around from 1080 up to over 1200 at times – that’s serious power. But the problem is the wind. It’s almost constantly cross-onshore, howling from the north at 12 to 22 mph, turning everything into a lumpy, choppy mess. The swell is coming from the WNW and NW, with periods mostly between 8 and 11 seconds, so there’s some push, but the surface is just wrecked. Those mornings and afterdays all read as poor surf conditions, and the scores are flat zeros. This isn’t a spot for a paddle-out unless you enjoy getting hammered by chop. Honestly, with that much wind and a beach setup, this looks way more interesting for kite surfing than a traditional surf session.

There’s a slight flicker around the 6th of September, Sunday morning. Swell drops back a bit to 4 ft from the NW, but the period lengthens to 11 seconds, giving it some better shape. Combined energy is still at 448, moderate, and the wind backs off to 9 mph from the north, just a gentle cross-shore. The call is "marginal," but it's the first real chance where the ocean might not be totally ugly. Still not a standout, just a breath of air.

The real moment to circle on your calendar is the 9th of September, Wednesday morning. We’re looking at a 10 ft swell from the NNW, but hold on – that’s too big for this break, especially for beginners. The period is only 8 seconds, so it’s a short-interval wall of water, and combined energy is a massive 1039, strong to very strong. The wind is light from the north, only 9 mph, so it’s not messy, but the forecast says it’s simply too big. This is expert territory only, and even then, it might be a washing machine. Definitely not one for the learner crew.

Following that, the 10th of September, Thursday morning, still holds a solid 8 ft swell from the NNW, but the period stays short at 9 seconds, and the wind is light cross-onshore from the north at 6 mph. The combined energy jumps up to 1275, very strong, but the call is still "marginal" – you’d want to check the tides very carefully. It’s the closest thing to a highlight, but with the short period and hefty size, it’s a raw, powerful day, not a clean, easy one.

Past that, into the 11th and 12th of September, the swell fades down to 4-5 ft, the period drops to 7 seconds, and the wind stays messy or shifts onshore from the WSW. The energy drops into the 200s and 300s, weak to moderate, and the conditions never really clean up. Overall, this is a rough 16-day window. The only whisper of something decent is that Thursday the 10th, but it’s a big, tricky swell with onshore vibes. For a true standout? Not really. It’s a waiting game.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Sat night, min 18°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 22°C on Thu morning, min 18°C on Mon night). Mainly fresh winds.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
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
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)
1.7
NW
9
1.4
NW
9
1.3
NW
8
1.3
NW
8
1.6
NW
9
1.2
NW
9
1.1
NW
9
1.3
NW
10
1.3
NW
10
1.2
NW
9
1.7
NNW
9
1.8
NNW
9
1.4
NNW
7
1.6
NNW
7
1.6
NNW
7
1.5
NNW
7
1.5
NNW
7
1.3
NNW
7
1.2
NNW
7
1.1
NNW
7
0.7
WNW
9
Wave Graph
Metric surfscale
Energy kJ
471
300
211
214
423
230
176
348
334
235
486
486
202
256
242
242
242
163
135
121
65
Wind (km/h)
20
N
20
NNW
20
NNW
20
N
30
NNW
30
N
30
N
35
N
30
N
30
N
35
N
35
N
35
N
35
N
30
N
15
N
20
NNW
15
N
10
N
15
NNW
15
N
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
High Tide
4:10PM2.98m
4:29AM2.78m
4:42PM2.96m
5:02AM2.77m
5:17PM2.89m
5:38AM2.72m
5:55PM2.75m
6:17AM2.61m
6:39PM2.56m
7:04AM2.46m
7:33PM2.34m
8:06AM2.30m
8:48PM2.14m
Low Tide
9:56AM0.18m
10:21PM0.08m
10:29AM0.15m
10:53PM0.10m
11:03AM0.19m
11:27PM0.17m
11:40AM0.27m
00:04AM0.31m
12:22PM0.41m
00:47AM0.49m
1:14PM0.59m
1:41AM0.70m
2:23PM0.76m
2:57AM0.88m
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
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>
7:03
7:03
7:05
7:05
7:07
7:07
7:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:13
8:12
8:09
8:08
8:07
8:06
8:04
 mm
Temp °C
19
19
20
20
20
18
19
19
18
19
19
18
19
19
19
22
22
21
22
22
20
Feels °C
18
17
19
19
17
15
15
15
14
14
14
13
14
14
14
21
21
19
23
22
20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
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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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