Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 6 pm 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
19.7°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 29 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 10AM (local time) - 6.5ft (2.0m), 9s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 4PM (local time) - 6ft (1.8m), 12s period, NW swell with 923 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 10AM (local time) - 6.5ft (2.0m), 9s 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 Saturday (Sep 05) at 10AM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 1.1m and 13s. 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 1.8m 12s and forecast to arrive on Saturday (Sep 05) at 4PM. 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+)10AM (Sat 5th Sep)6.5ft (2.0m) 9s
Best Surf10AM (Sat 5th Sep)6.5ft (2.0m) 9s
Most Powerful 4PM (Sat 5th Sep)6ft (1.8m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s shaping up for Praia das Macas.

Right off the bat, I gotta be straight with you—this is a rough stretch. The next week and a half is pretty much a write-off for decent surfing. We’ve got swell on offer, but the wind is a constant problem. Most days it’s a cross-on or cross-shore breeze, blowing anywhere from 9 mph right up to 25 mph, and that’s just going to chop everything up. The water temperature is sitting at 68°, which is about a degree and a half cooler than average for this time of year, so nothing weird there, but you’ll still want a spring suit.

From Saturday the 29th through to Thursday the 4th of September, the swell is in the 4 ft to 6 ft range, mostly from the NW, with periods between 7 and 10 seconds—so it’s pretty average, short-period stuff. The combined swell energy is moderate, bouncing between 220 and 695. But the wind is always on it, making it choppy, lumpy, and messy. Honestly, not worth paddling out for a beginner or anyone else.

Friday the 5th of September is the one standout in this whole outlook. Saturday morning, the 5th, we’ve got a clean window. Swell is 7 ft from the NW, period 9 seconds, and the wind shifts to a light cross-offshore from the ENE at 6 mph. The combined energy jumps up to 1069, which is strong. That’s the kind of setup that’ll give you some nice, punchy waves. The report says “excellent surf conditions for experienced surfers,” and I’d agree—that 7 ft is pushing into expert territory, especially for a beach break. Crowds are only “sometimes” an issue, so you might get a bit of company, but it won’t be a zoo. This is the best on offer by a long shot.

After that, it’s back to the same old story. Sunday the 6th through to Thursday the 10th, the swell drops, the wind turns back onshore, and it’s all poor conditions again. There’s a little spike on Friday the 11th of September, with a 7 ft swell from the NW, period 12 seconds (a nice long groundswell), and combined energy of 1417—very strong. But the wind is cross-shore and moderate, and the report calls it “marginal surf forecast or questionable tide conditions.” So it’s a maybe, not a sure thing.

The rest of the run into the second week is just more of the same: onshore winds, messy waves, and nothing to get excited about. The 13th of September is a full-on blowout with near-gale winds.

So, bottom line: if you’re keen, your only real shot is Saturday morning, the 5th of September. Get up early, get in the water before the wind shifts, and you’ll find some solid, clean waves. The rest of the time, leave the board in the car.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Sun morning, min 18°C on Sun night). Winds increasing (light winds from the N on Sat night, fresh winds from the N by Mon afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 17°C on Tue night). Winds decreasing (fresh winds from the N on Tue afternoon, light winds from the N by Fri morning).

Sat
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
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
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
NW
9
1.3
NW
8
1.3
NW
8
1.5
NW
9
1.2
NW
9
1.1
NW
9
1.9
NNW
10
2
NNW
10
1.9
NNW
9
2
NNW
9
1.9
NNW
9
1.7
NNW
8
1.6
NNW
8
1.4
NNW
7
1.4
NNW
7
1.4
NNW
7
1.5
NNW
7
1.4
NNW
7
1.5
NNW
8
1.5
NNW
7
Wave Graph
Metric surfscale
Energy kJ
300
211
214
383
230
179
684
756
565
591
549
354
277
220
220
220
210
181
263
249
Wind (km/h)
20
NNW
20
NNW
20
N
30
NNW
30
N
35
N
35
N
35
N
35
N
40
N
35
N
25
N
25
NNW
20
N
20
N
25
NNW
25
N
15
N
15
NNW
10
NNW
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross-on
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
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
clear
clear
part cloud
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
7:05
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
18
19
19
18
18
19
18
19
19
19
21
21
19
21
21
20
Feels °C
17
17
19
17
14
14
14
13
14
14
13
17
16
17
20
19
17
20
20
20
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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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