Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 6 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
20.0°C
0.5° 

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 31 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 4AM (local time) - 4.5ft (1.4m), 12s period, NW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 4PM (local time) - 6ft (1.9m), 10s period, NW swell with 725 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 4AM (local time) - 4.5ft (1.4m), 12s 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 06) at 4AM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.7m 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 1.9m 10s and forecast to arrive on Monday (Aug 31) 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+) 4AM (Sun 6th Sep)4.5ft (1.4m) 12s
Best Surf 4AM (Sun 6th Sep)4.5ft (1.4m) 12s
Most Powerful 4PM (Mon 31st Aug)6ft (1.9m) 10s

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


The Lowdown

Alright, this is Rusty.

Honestly, for the next week and a half, it’s a pretty grim outlook for Praia das Macas. We’re looking at a big run of poor to marginal conditions, with nothing worth paddling out for until we get into the second week of September. The opening days are a write-off. Monday the 31st of August through to Saturday the 6th of September is all lumpy, choppy, and cross to cross-onshore winds. The energy is weak to moderate at best, with the combined swell energy struggling to get into the low hundreds, and it’s mostly short-period, wind-affected stuff. Not a single wave worth chasing.

There’s a bit of a flicker of hope on the morning of Sunday the 6th of September. It’s a short window, but we get a glassy calm, and the swell is a clean 4ft from the NW with a period of 12 seconds, giving us a solid groundswell. The combined energy hits 534 (moderate). That’s your best bet for a surfable wave, but even then, the afternoon turns back to poor, so you’d have to be an early bird.

Then it’s back to the doldrums. From Monday the 7th of September right through to Monday the 14th of September, it’s just poor, choppy, or marginal conditions. The winds are a nightmare, mostly cross or cross-onshore, and the swell is either too small or too short-period. The energy is mostly weak, in the 100 to 300 range. There’s a brief moment on the morning of Monday the 14th of September where we get a glassy 3ft NW swell, but it’s only a 10-second period and the energy is weak (197). It’s surfable, but hardly a standout.

The true standout is the morning of Tuesday the 15th of September. That’s a solid 7ft swell from the WNW with a very long period of 14 seconds. The combined energy is a massive 1625 (strong). The wind is a light, cross-offshore breeze, cleaning it right up. It’s described as excellent for experienced surfers – and that’s no surprise, because 7ft on a long period at a beach break will be powerful and possibly a bit too much for beginners. The swell direction is NW, which is the optimum for the spot. This is the one to circle on the calendar. It’s a long way out, so treat it with a bit of caution, but if it holds, that’s the session.

For the rest of the time, honestly, the setup looks more interesting for kite surfing than paddle surfing, given the persistent cross-shore winds and lumpy conditions.

Stay tuned, and hope that Tuesday morning delivers.

Rusty

Short Range Forecast

Mostly dry. Warm (max 20°C on Wed morning, min 18°C on Mon morning). Winds decreasing (fresh winds from the N on Tue night, light winds from the N by Wed night).

Days 4-6 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 31°C on Sat morning, min 20°C on Thu morning). Winds decreasing (fresh winds from the N on Fri afternoon, light winds from the SE by Sat night).

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
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
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)
1.1
NW
9
1.9
NW
10
1.2
NW
10
1.8
NW
9
1.8
NNW
9
1.8
NNW
9
1.5
NNW
7
1.5
NNW
8
1.3
NNW
7
1.2
NNW
7
1
NNW
7
0.9
NNW
6
0.7
WNW
8
0.9
NNW
6
0.8
WNW
9
0.8
WNW
9
1.1
NW
15
1.4
NW
13
1.3
NW
12
1.3
NW
11
0.9
NW
10
Wave Graph
Metric surfscale
Energy kJ
179
725
273
528
523
512
218
256
172
132
99
70
58
47
106
106
485
663
494
429
184
Wind (km/h)
35
N
35
N
35
N
35
N
35
N
35
N
30
N
30
N
25
N
15
N
25
N
25
N
25
N
30
N
25
NNE
20
NNE
30
NNW
15
NNW
0
ESE
15
WNW
15
N
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross-on
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-on
glassy
on
cross
High Tide
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
9:30AM2.21m
10:27PM2.08m
11:05AM2.27m
11:58PM2.19m
Low Tide
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
4:00PM0.84m
4:37AM0.91m
5:40PM0.72m
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:07
7:07
7:07
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:09
8:08
8:07
8:06
8:04
8:02
8:00
 mm
1
Temp °C
19
19
18
19
19
18
20
19
19
22
22
22
24
22
26
31
26
29
26
25
29
Feels °C
15
14
13
15
15
13
18
16
16
20
19
20
21
18
22
27
21
25
26
24
27
  • 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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