Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 24 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
19.4°C
1.3° 

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 24 Aug 2026:

  • Best quality surf: Friday 28 Aug, 10AM (local time) - 10ft (3.0m), 12s period, WNW swell with cross-onshore winds.
  • Most powerful swell: Friday 28 Aug, 10AM (local time) - 10ft (3.0m), 12s period, WNW swell with 2,590 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 25 Aug, 7AM (local time) - 5ft (1.5m), 7s period with W 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 Tuesday (Aug 25) at 7AM. The primary swell is predicted to be 1.5m and 7s period with a secondary swell of 0.1m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Praia das Macas in the next 16 days are 3.0m 12s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Monday (Aug 24) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 25th Aug)5ft (1.5m) 7s
Best Surf10AM (Fri 28th Aug)10ft (3.0m) 12s
Most Powerful10AM (Fri 28th Aug)10ft (3.0m) 12s

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


The Lowdown

Alright, let’s talk about Praia das Macas. We’re in for a long stretch of mostly onshore, messy conditions, so don’t get your hopes up too high for the next 16 days. The water temperature is pretty usual for the time of year, nothing wild there.

The week starts off rough. Monday, August 24th, is a write-off: rain showers and a strong 25 mph cross-onshore wind with a 8 ft WSW swell – a real washing machine. That energy’s sitting at 989 (moderate) but it’s just ugly. Tuesday is a bit more manageable, but still not good. The best of the early days is Tuesday morning with a 5 ft WNW swell and a light 3 mph cross-shore wind, but it’s only marginal. Swell period is short at 7 seconds, so not much push.

Wednesday through Thursday are all poor, with onshore winds and choppy surf. The energy dips and rises, but the wind is the killer.

Now, Friday, August 28th morning, is the standout in this whole outlook. We’ve got a 10 ft WNW swell with a 12-second period – that’s a proper groundswell. The energy is strong at 2590. The wind is a gentle 9 mph cross-onshore, so it’s not perfect, but it’s the cleanest we’ll see. The problem is that 10 ft is big – too big for beginners, and it’s a beach break, so it’ll be a handful. This is one for experienced surfers only. The optimum swell direction is NW, and this is coming from WNW, close enough to work. The rest of Friday is just too choppy.

After that, it’s back to poor conditions with moderate to fresh cross-onshore winds and lumpy surf. There’s a gap of several days with nothing worth paddling out for. Sizes drop and the wind stays ugly.

Into the first week of September, the swell starts to build again, but the wind is still cross-onshore or onshore. By September 5th, we’re seeing 10 ft to 12 ft NNW swells, but with moderate onshore winds, it’s just a big, messy wall. The energy is high (1176 to 2282), but that’s no good for a clean ride.

The last few days of the outlook, September 6th to 8th, have some smaller WNW swells with longer periods (12 to 17 seconds), but the wind is still cross or cross-onshore. The period is long, which would be great at a point or reef, but at a beach break it’s going to be fat and hard to read. The energy is still moderate to strong (570 to 1540), but the wind spoils it.

So, to be honest, the only real window is Friday, August 28th morning. If you’re an expert and you like a challenge, it’s your best bet. For everyone else, it’s a long wait.

Rusty.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sun night. Warm (max 22°C on Mon afternoon, min 20°C on Mon night). Winds decreasing (fresh winds from the SW on Mon morning, calm by Mon night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Wed night. Warm (max 20°C on Wed night, min 18°C on Fri night). Mainly fresh winds.

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
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
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)
2.5
WSW
8
2.3
W
8
1.5
W
7
1.5
WNW
7
1.2
WNW
7
0.7
W
6
1
W
6
1.6
W
7
1.8
WNW
9
2.1
WNW
8
2.3
WNW
9
2.5
WNW
10
3
WNW
12
3
NW
11
2.1
NW
10
1.6
NW
9
1.4
NW
9
1.1
NW
8
1
NW
8
1.1
NW
8
0.9
NW
7
Wave Graph
Metric surfscale
Energy kJ
977
719
251
215
124
38
62
285
528
606
773
1341
2590
1867
886
449
314
171
122
125
77
Wind (km/h)
40
SW
25
WSW
10
WNW
5
SSW
15
SW
10
SW
25
W
20
WNW
20
WSW
30
W
30
WNW
25
W
15
NNW
20
NNW
25
N
25
N
30
NNW
25
N
20
N
25
NNW
25
N
Wind State
cross-on
cross-on
on
cross
cross
cross-on
cross-on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
1:21PM2.30m
1:47AM2.21m
2:01PM2.49m
2:23AM2.38m
2:35PM2.67m
2:55AM2.53m
3:07PM2.82m
3:27AM2.65m
3:38PM2.93m
3:58AM2.73m
4:10PM2.98m
4:29AM2.78m
4:42PM2.96m
Low Tide
7:05AM0.89m
7:41PM0.72m
7:46AM0.71m
8:17PM0.54m
8:21AM0.53m
8:49PM0.37m
8:53AM0.37m
9:20PM0.23m
9:25AM0.25m
9:51PM0.13m
9:56AM0.18m
10:21PM0.08m
10:29AM0.15m
10:53PM0.10m
rain showers
rain showers
part cloud
part cloud
part cloud
rain showers
thunderstorm
clear
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:58
7:00
7:00
7:01
7:01
7:03
7:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:19
8:17
8:15
8:15
8:13
8:12
 mm
3
1
1
2
2
1
Temp °C
21
22
21
21
21
21
21
21
20
20
20
20
20
20
19
19
19
18
20
20
20
Feels °C
17
20
21
22
21
22
19
18
18
15
15
17
19
18
17
15
15
15
19
18
19
  • 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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