Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 6 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
20.3° 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 20 Aug 2026:

  • Most powerful swell: Friday 21 Aug, 1PM (local time) - 7ft (2.1m), 10s period, NNW swell with 917 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 2.1m 10s and forecast to arrive on Friday (Aug 21) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Monday (Aug 24) at 4AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Fri 21st Aug)7ft (2.1m) 10s

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


The Lowdown

Right then, Rusty here, and I've got the lowdown on the local surf scene for the next couple of weeks. I’ll be straight with you – it’s looking like a bit of a tough stretch ahead. We've got Praia das Macas on the table, and honestly, the conditions are a mixed bag for most of the period.

The water temperature is sitting around 69° right now, which is about normal for this time of year, so no need to dig out the extra thick rubber just yet.

Let’s start with this week. Wednesday afternoon (19th August) we’ve got a tiny 3 ft swell from the NNW, but it's only a 7-second period, so weak and short. The wind is light and onshore, so it's not looking great. The combined energy is a weak 103, which says it all. Thursday and Friday are similarly poor with small WNW swells and fresh cross-onshore winds making a mess of things. Friday afternoon sees the swell bump up to 7 ft (moderate energy at 898), but with a 22 mph cross-onshore, it’s going to be lumpy and blown out. Not one for the logbook.

The weekend offers a glimmer, but it's a tough one. Saturday morning (22nd August) has a 6 ft NNW swell with a 10-second period (moderate energy at 555), but the wind is a cross-onshore, leaving it fairly choppy. The best window might be Sunday (23rd August). In the morning we get a 4 ft WNW swell with a 10-second period (moderate energy at 446) and a strong cross-offshore wind from the SSE making it clean. That’s a standout for the period, but it’s a strong 22 mph breeze, so it’ll be a battle. The afternoon keeps the clean conditions with a 5 ft swell from the W, but the same fresh wind.

Then we hit a long dry spell. From Monday (24th August) all the way through to Wednesday (3rd September), the surf is consistently poor. We’ve got a lot of onshore and cross-onshore winds, mostly from the NW and N, and the swell directions are all over the shop. The swell heights do get up to 8 ft on the 29th of August, but that’s with a 22 mph cross-onshore – that’s expert-only territory and it’s going to be a washing machine. There are a few marginal mornings, like the 28th of August and the 31st of August, but the wind is never quite right. Honestly, for a beach break like this, with the wind and swell directions we’re seeing, it might be more interesting for the kite surfers than the paddle crew.

So, to be blunt, the best option we have in the whole 16-day window is that Sunday morning (23rd August) for a clean session, but it’s a short-lived window. The consistency is just not there, and the forecasts are poor for the vast majority of the time. It’s a frustrating run, but it happens. Keep an eye on it, forecasts can change, but right now, it’s a wait-and-see kind of situation.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Wed afternoon, min 18°C on Thu night). Winds increasing (light winds from the N on Wed night, fresh winds from the N by Thu night).

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Sun afternoon. Warm (max 22°C on Sun afternoon, min 20°C on Sat afternoon). Winds increasing (light winds from the SW on Sat night, fresh winds from the S by Sun morning).

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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
1
0
1
0
1
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
NNW
7
0.8
NNW
6
0.6
WNW
9
0.6
WNW
9
1.7
NNW
7
1.7
NNW
7
2.1
NNW
10
1.9
NNW
10
1.7
NNW
10
1.4
NNW
9
1.1
NNW
9
1.3
WNW
10
1.6
W
10
1.2
W
9
2.1
WSW
8
1.9
WSW
8
1.5
W
7
1.3
W
7
1.1
W
7
1
WNW
6
Wave Graph
Metric surfscale
Energy kJ
70
50
62
61
329
279
886
697
516
355
180
356
500
235
593
480
251
153
104
85
Wind (km/h)
10
NW
5
N
15
NNW
25
NNW
35
N
35
N
35
NNW
30
NNW
15
NW
15
W
10
SSW
35
SSE
35
S
35
SSW
30
SW
20
WSW
15
W
10
W
15
SW
15
SW
Wind State
on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross
cross-off
cross-off
cross
cross
cross-on
on
cross-on
cross-on
cross-on
High Tide
8:01PM2.14m
8:29AM2.10m
9:05PM1.94m
9:44AM1.98m
10:36PM1.85m
11:16AM1.99m
00:04AM1.90m
12:30PM2.12m
1:04AM2.05m
1:21PM2.30m
1:47AM2.21m
2:01PM2.49m
2:23AM2.38m
Low Tide
2:03AM0.90m
2:42PM0.98m
3:06AM1.07m
4:10PM1.09m
4:41AM1.14m
5:49PM1.05m
6:08AM1.05m
6:56PM0.90m
7:05AM0.89m
7:41PM0.72m
7:46AM0.71m
8:17PM0.54m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
thunderstorm
rain showers
part cloud
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:56
6:56
6:58
6:58
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:28
8:25
8:24
8:22
8:22
8:21
8:19
 mm
4
3
2
Temp °C
22
21
21
21
19
19
19
19
19
20
20
21
22
21
21
21
21
21
21
21
Feels °C
24
21
21
20
13
15
14
15
18
19
21
17
21
19
18
20
21
21
20
21
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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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