Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
20.0° C
0.4° 

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 9 Aug 2026:

  • Most powerful swell: Sunday 16 Aug, 4AM (local time) - 8ft (2.5m), 8s period, NNW swell with 919 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 2.5m 8s 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 0.1m 11s period and expected on Sunday (Aug 09) at 7PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Sun 16th Aug)8ft (2.5m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s be straight with you. The next couple of weeks are looking pretty grim for a proper paddle. We’ve got a long stretch of nothing but cross-onshore winds and lumpy, messy surf. It’s the kind of forecast that makes you want to check the kite gear instead of the wax.

The first real window of opportunity doesn’t show up until Tuesday, August 18th. That’s a full week of onshore slop to get through. Before that, from Sunday the 9th right through to Monday the 17th, it’s all cross-on breezes, increasing in strength, and the swell, while it does build, is just going to be a chopped-up mess. The waves will be there, but they won’t be any fun. Early on, we’re looking at ankle-biters around 2ft to 4ft, but by the following weekend, the swell pushes up over 7ft, and with 25 mph winds, it’s going to be a full-on washing machine. That kind of size and wind is strictly for the experts, and even then, the quality will be poor. The wave energy is moderate at best during this stretch, but it rises to strong (761) by Sunday the 16th, though it’s all wasted on the wind.

Then, finally, things ease off. On Tuesday morning, August 18th, we get a break in the weather. The wind swings around to a light SSE cross-off, and the surf cleans right up. The swell drops to a cleaner 5ft, and that’s our standout window. This is the one to circle on the calendar. The water’s sitting at 68°F, which is right on the money for this time of year, so no surprises there.

The Tuesday morning session at Praia das Macas is the pick. It’s a consistent, exposed beach break, and with that cross-off breeze, it’ll be holding shape. The swell direction is NNW, which isn’t its absolute optimum, but the clean conditions will make up for it. This is a beginner-friendly spot, but with 5ft surf, it’s pushing past the ideal for learning. The energy is moderate (355), but the clean face makes it the best on offer. The lighter SSE wind on Wednesday and Thursday keeps things clean, but the swell fades fast, dropping to 3ft and then 2ft, so Tuesday is the day.

After that, it’s pretty much over. The swell fades out entirely by the end of the week, bottoming out around 1ft, and the onshore winds come back. The long-period swell that shows up on Saturday the 22nd is tiny and won’t do anything. There is a small pulse of NNW swell that shows up on Sunday the 23rd, but it’s short-period and wind-blown. And then, as we head into the final days, another bigger NNW swell (6ft to 7ft) builds for Monday the 24th, but the wind is back on it, making it a messy option.

So, keep your expectations low for the next week. The clean Tuesday morning is the only real highlight. Get on it if you can.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Wed morning, min 19°C on Wed night). Winds increasing (light winds from the N on Wed morning, strong winds from the N by Fri night).

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
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)
0.9
WNW
7
1.1
WNW
7
0.9
WNW
7
0.7
NW
8
1.1
NW
8
0.9
NNW
7
0.4
NW
12
1
NNW
5
0.6
W
10
0.8
WNW
9
0.9
WNW
10
0.9
WNW
9
0.9
WNW
10
0.8
WNW
9
0.9
WNW
10
1.5
NNW
6
1.8
NNW
7
1.7
NNW
7
2.1
NNW
8
2.3
NNW
8
2.5
NNW
8
Wave Graph
Metric surfscale
Energy kJ
86
118
94
60
125
83
41
54
71
118
154
147
150
113
166
183
306
269
491
590
759
Wind (km/h)
15
NNW
25
NNW
15
NNW
20
NNW
25
NNW
25
N
20
NNW
25
NNW
30
N
20
N
25
NNW
30
N
30
N
30
NNW
35
N
35
N
35
NNW
40
N
40
NNW
40
NNW
40
NNW
Wind State
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-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
12:27PM2.45m
1:06AM2.41m
1:29PM2.69m
2:04AM2.59m
2:22PM2.93m
2:53AM2.75m
3:10PM3.11m
3:38AM2.85m
3:53PM3.20m
4:19AM2.88m
4:35PM3.20m
4:59AM2.85m
5:14PM3.09m
Low Tide
6:51PM0.53m
7:12AM0.54m
7:52PM0.30m
8:07AM0.35m
8:43PM0.09m
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
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:46
6:47
6:48
6:48
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:39
8:38
8:37
8:37
8:35
8:34
8:32
 mm
Temp °C
21
21
21
21
21
20
21
21
20
21
21
20
20
21
20
21
21
20
20
20
20
Feels °C
21
20
20
20
19
19
20
19
18
20
19
17
18
18
16
17
17
16
15
15
15
  • 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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