Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 12 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 12 Aug 2026:

  • Most powerful swell: Sunday 16 Aug, 4AM (local time) - 10ft (3.0m), 9s period, NNW swell with 1,474 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 3.0m 9s and forecast to arrive on Sunday (Aug 16) 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 Monday (Aug 17) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Sun 16th Aug)10ft (3.0m) 9s

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


The Lowdown

G'day, Rusty here. Look, I’ve gotta be straight with you—this next couple of weeks is a tough one for the Lisbon surf. We’re looking at a long stretch of messy, wind-affected conditions that’ll test your patience.

We've got a pretty poor run ahead. The only break we've got on the radar is Praia das Macas. It's a consistent, beginner-friendly beach break, which is a bit of a positive. Normally, it’s exposed to swell and the optimum direction is from the NW, which is where most of our energy is coming from. But the winds are just not playing ball.

The water temp is sitting around average for this time of year, so no surprises there.

The pattern starts now. For the first few days, from Wednesday the 12th to the end of the week, we’ve got cross-onshore winds blowing in the 12 to 22 mph range. Swell is small-to-medium, building from 3 ft to 6 ft, but it’s all short-period, choppy, and just plain ugly. The combined energy is moderate (182 to 312), but it’s all for nothing with that wind. Don’t even bother.

Come Saturday the 15th and Sunday the 16th, the size jumps up, but it’s a mess. Swell hits 8 ft to 10 ft, with combined energy readings in the strong range (984 to 1146). That’s legitimate swell, but it’s accompanied by a strong breeze (25-28 mph) from the NNW, making it cross-onshore, messy, and lumpy. At 8 ft and over, this is strictly for experts, and even then, the wind is going to make it a battle. For beginners, it’s a definite no-go.

The standout of the entire outlook, if you can call it that, is Monday morning the 17th. The wind drops to a light breeze (6 mph) and goes cross-shore. Swell is a solid 8 ft from the NNW with a moderate energy of 860. The period is 9 seconds, which is okay. The catch is it’s a "marginal" forecast, possibly due to tide. It’s the cleanest we’ll get, but the waves might be a bit fat or have a weird tide window. It’s the only one worth a look, but don’t set your alarm.

After that, things go back to the same story. From Tuesday the 18th through to the end of the window on Thursday the 27th, we’re stuck with persistent cross-onshore winds, mostly from the N and NNW, ranging from 12 to 28 mph. Swell sizes stay between 4 ft and 8 ft, but the energy is all over the place. The consistent wind chop and lumpy conditions mean the surf quality is poor day after day.

There are no other standouts. The second week is a write-off of strong, messy winds and poor surf. There’s a big gap of several days with no real recommendations. Even the consistent nature of Praia das Macas can’t save it from this wind. Honestly, this setup looks more interesting for kite surfing than paddle surfing, given the constant wind and onshore chop.

Hang in there, storms can change things. But this forecast is a tough one to sell.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Mon morning, min 20°C on Fri night). Winds decreasing (strong winds from the NNW on Sat night, light winds from the N by Mon morning).

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
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
2
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)
0.8
WNW
10
0.9
WNW
10
0.9
WNW
10
0.9
WNW
10
1
WNW
10
0.9
WNW
10
1.4
NNW
6
1.8
NNW
7
2.1
NNW
7
2.5
NNW
8
3
NNW
8
3
NNW
9
2.5
NNW
9
2.5
NNW
9
2.5
NNW
9
2.3
NNW
9
2
NNW
9
1.8
NNW
8
1.7
NNW
8
1.5
NNW
8
1.3
NNW
8
Wave Graph
Metric surfscale
Energy kJ
120
158
150
154
218
163
139
297
482
984
1134
1447
1083
919
1058
840
601
446
412
313
211
Wind (km/h)
20
N
25
NNW
30
N
20
N
25
NNW
35
N
30
N
35
NNW
40
N
40
NNW
45
NNW
45
NNW
30
N
35
NNW
25
N
10
N
25
NNW
25
N
10
N
20
NNW
20
N
Wind State
cross
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
cross-on
cross-on
cross-on
cross-on
cross
High Tide
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
6:54AM2.45m
7:13PM2.39m
Low Tide
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
12:56PM0.58m
1:18AM0.68m
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
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
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:35
8:34
8:32
8:31
8:30
8:29
 mm
Temp °C
21
21
20
21
21
20
21
21
20
21
20
20
22
22
21
24
22
21
23
22
21
Feels °C
20
19
17
19
19
17
18
18
16
16
14
14
19
19
17
23
19
20
23
21
19
  • 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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