Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 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 19 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 7AM (local time) - 3ft (0.9m), 7s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Friday 21 Aug, 4PM (local time) - 7ft (2.2m), 10s period, NNW swell with 942 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 7AM (local time) - 3ft (0.9m), 7s 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 Wednesday (Aug 19) at 7AM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m and 8s. 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 2.2m 10s and forecast to arrive on Friday (Aug 21) 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 15s period and expected on Thursday (Aug 20) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 19th Aug)3ft (0.9m) 7s
Best Surf 7AM (Wed 19th Aug)3ft (0.9m) 7s
Most Powerful 4PM (Fri 21st Aug)7ft (2.2m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on offer for our stretch of coast over the next couple of weeks. I’ll level with you straight up – it’s a bit of a tough watch for a while. The forecast shows a lot of days where the wind is just messy and onshore, so we’re going to have to be patient. There’s a decent gap with nothing worth getting excited about right through the middle of the period. The first real flicker of hope comes way down the line.

We start off on Wednesday the 19th of August. It’s not much, but it’s the only thing that’s even surfable early on. Praia das Macas is seeing a small 3ft swell from the NNW with a short period of 7 seconds. The combined energy is weak (106), so don’t expect any punch. The wind is a light cross-offshore from the south, which keeps things clean for a beginner-friendly wave. The water temp is about average for this time of year. It’s small and gutless, but if you’re just learning to pop up, it’s a session.

After that, it goes pretty quiet. From Thursday the 20th right through until Tuesday the 25th of August, the wind turns cross-onshore and fresh, and the swell is either tiny or blown out. Don’t bother paddling out. Even when the swell bumps up a bit around the 21st and 22nd – with 6ft to 8ft from the NNW and combined energy readings into the moderate range (601 to 952) – the onshore wind just ruins everything. It’s lumpy and messy.

We get a little breather on Wednesday the 26th of August. The swell is 5ft from the NW with a 10-second period and moderate energy (419). It’s marginal, and the wind is a light cross-shore. It might be worth a look if you’re desperate, but it’s not the standout.

Then we hit another dry spell. From the 27th of August through to the 31st of August, the wind is howling from the north and northwest, with speeds hitting 18 to 22 mph. The swell gets bigger – 7ft on the 27th afternoon with strong energy (1052), and 6ft to 7ft on the 28th and 31st with combined energy up to 1401 – but it’s all cross-onshore and ugly. Not for paddle surfing; honestly, this stretch looks more interesting for kite surfing than anything else.

The biggest swell of the period hits on the 1st of September. We’re looking at 8ft to 10ft from the NNW with a long 12-second period. The combined energy is very strong (2065 to 2196). But again, the wind is a fresh cross-onshore at 22 mph. It’s a lot of water moving around, but it’s blown out and messy. This is expert-only territory if you even try it, but conditions are poor.

Now, here’s the one that stands out as the best on offer. It’s far out, so keep it in the back of your mind. On Thursday the 3rd of September, the morning session at Praia das Macas looks like it could finally deliver. The swell drops to a clean 5ft from the NW with a 9-second period and moderate energy (404). The wind? Glassy. Dead calm, slight air. That’s the magic word. This is the only window where the wind is truly offshore and light, making for clean, lined-up surf. For a spot that’s consistent and exposed, this is the one to circle on the calendar. Just keep in mind it’s a long way out, so forecasts can shift, but right now, that Thursday morning is your best bet.

That’s the story. It’s a long wait for a clean one, but that early September morning might just be worth the patience.

Stay frothy,
Rusty

Short Range Forecast

Mostly dry. Warm (max 22°C on Wed morning, min 19°C on Thu afternoon). Winds increasing (calm on Tue night, fresh winds from the N by Thu night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Sun morning, min 19°C on Fri night). Mainly fresh winds.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
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
NNW
7
0.9
NNW
7
0.8
NNW
6
0.6
WNW
9
0.6
WNW
9
1.7
NNW
8
1.8
NNW
8
2.2
NNW
10
2.2
NNW
8
2.4
NNW
8
2.1
NNW
9
2.2
NNW
8
2.3
NNW
9
2.3
NNW
9
2.3
NNW
8
2.1
NNW
8
1.6
NNW
8
1.2
NNW
7
1
NNW
7
0.9
NNW
7
0.7
NW
6
Wave Graph
Metric surfscale
Energy kJ
94
70
50
62
61
337
372
942
596
782
645
675
821
756
704
574
296
132
85
73
43
Wind (km/h)
10
S
10
W
5
NNW
10
NW
30
NNW
35
NNW
35
N
35
NNW
35
NNW
30
NNW
30
NNW
30
NNW
25
NW
30
NW
30
NNW
25
NW
25
NW
20
N
15
N
15
NNW
15
NW
Wind State
cross-off
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
7:37AM2.27m
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
1:42PM0.79m
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
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
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
Temp °C
22
22
21
21
20
19
19
19
19
19
19
19
20
20
20
20
20
19
19
20
20
Feels °C
23
23
22
22
18
14
14
14
14
15
15
15
17
16
16
17
17
16
18
19
19
  • Map Icons:
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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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