Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
20.2°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 8 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 10AM (local time) - 5ft (1.5m), 9s period, NNW swell with glassy winds.
  • Most powerful swell: Thursday 10 Sep, 7PM (local time) - 6.5ft (2.0m), 10s period, NNW swell with 839 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 10AM (local time) - 5ft (1.5m), 9s 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 Sunday (Sep 13) at 10AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 1.0m and 13s. 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 2.0m 10s and forecast to arrive on Thursday (Sep 10) at 7PM. 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 13s period and expected on Friday (Sep 11) at 10PM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 13th Sep)5ft (1.5m) 9s
Best Surf10AM (Sun 13th Sep)5ft (1.5m) 9s
Most Powerful 7PM (Thu 10th Sep)6.5ft (2.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s talk about what’s shaping up at Praia das Macas. It’s a bit of a tease this next week and a half – we’ve got some swell on the way, but the wind is going to be a real pain for a while. You’ll have to be patient if you want a clean one.

The first week is pretty much a write-off for good surfing. From Tuesday, the 8th, right through to the end of Friday, the 12th, it’s onshore trash. The wind is blowing hard from the north, cross-on, and the surf is just a mess. We’re looking at 3ft to 7ft of short-period slop, with the combined energy sitting between 156 and 788 – that’s moderate wave energy, but it’s all blown out. It’s not worth paddling out for. By Saturday the 12th, the wind finally drops to a gentle breeze, but it’s still cross-shore and the waves are only 5ft to 6ft and a bit lumpy. It’s a marginal call at best.

Now, Sunday the 13th is the first real stand-out. The morning is going to be absolute glass. The wind goes dead calm, with a slight air, and the waves are 5ft from the NNW with a 9-second period. The combined energy jumps to 702 (moderate to strong), and the word is "glassy." That’s the kind of session you wait for – clean, lined up, and all to yourself. The water temperature is about average for this time of year, so no worries there.

Monday the 14th morning is also a cracker, with glassy conditions again, 4ft swell from the NW and a 12-second period. That’s a nice long-period groundswell, which will wrap in well here. The energy is 452 (moderate). After that, the wind turns onshore again through the middle of the week, and the quality drops right off.

The next real window opens up on Thursday the 17th. The morning has a light cross-onshore breeze with 5ft of NW swell, period 11 seconds, and strong energy at 742. It’s marginal, but it’s close. The afternoon gets bigger, 7ft, but the wind goes onshore and the energy hits 847 – that’s a lot of water moving, but the wind is a problem.

The true standout of the whole forecast, however, is the morning of Friday the 18th. The wind swings to a light cross-offshore from the SSE, the swell is 6ft from the NNW with an 8-second period, and the energy is 651 (strong). The conditions are described as "clean." That’s your best bet. It’s a solid, punchy swell with clean faces. It’s a beginner-friendly size at 6ft, so it’s fun for everyone, but be aware the break is exposed and can get busy.

The following Saturday the 19th morning is also clean with a light cross-offshore, but the swell drops to 3ft, period 11 seconds, and energy at 434 – it’s a good, clean longboard wave. Then Sunday the 20th morning is back to glassy with 3ft of long-period NW swell (13 seconds), which will be a bit too straight for the beach break but could be fun.

The second week gets a bit wild. Monday the 21st afternoon sees a massive 5ft swell from the NW with a 17-second period, and the energy goes through the roof at 1141 (very strong). But the wind is a fresh cross-onshore gale, so it’s totally blown out. Tuesday the 22nd is even bigger – 7ft with a 14-second period, and energy at 1590 (very strong), but the wind is a near-gale from the north. That’s a no-go for surfing, but if you’ve got a kite, that’s your playground.

So, to wrap it up: the best two sessions are the glassy Sunday morning on the 13th and the clean, cross-offshore Friday morning on the 18th. Get on those.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue night, min 18°C on Mon night). Winds increasing (light winds from the NNW on Tue night, strong winds from the NNW by Wed night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sat night, min 18°C on Thu night). Winds decreasing (fresh winds from the N on Thu night, calm by Sun morning).

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
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
1
0
0
3
1
2
2
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)
1.2
WNW
10
1
WNW
9
1
NW
9
0.9
NW
8
1.8
NNW
8
2.1
NNW
8
2.1
NNW
8
1.9
NNW
11
1.9
NNW
6
0.8
NNW
10
1.5
NNW
6
1.6
NNW
7
1.7
NNW
8
1.5
NNW
8
1.4
NNW
8
1.5
NNW
9
1.3
NW
13
1.3
NW
12
1.2
NW
12
1.1
NW
11
0.9
NW
10
Wave Graph
Metric surfscale
Energy kJ
281
180
152
115
372
493
506
778
309
107
146
249
344
270
226
362
511
479
383
258
167
Wind (km/h)
25
N
20
NNW
20
NW
35
N
35
NNW
40
N
30
N
35
N
35
N
30
N
35
N
25
N
15
N
15
NNW
15
N
5
N
10
WNW
15
N
5
NNE
10
WNW
15
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
glassy
on
cross
glassy
on
cross-on
High Tide
1:21PM2.73m
1:55AM2.59m
2:09PM2.95m
2:38AM2.76m
2:52PM3.09m
3:17AM2.87m
3:31PM3.15m
3:54AM2.92m
4:08PM3.11m
4:29AM2.90m
4:44PM2.99m
5:03AM2.81m
5:19PM2.80m
Low Tide
7:07AM0.55m
7:45PM0.26m
7:56AM0.34m
8:29PM0.07m
8:38AM0.17m
9:09PM-0.04m
9:17AM0.06m
9:45PM-0.07m
9:54AM0.03m
10:19PM-0.02m
10:30AM0.08m
10:52PM0.10m
11:05AM0.19m
11:23PM0.28m
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:13
7:13
7:15
7:16
7:16
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:55
7:54
7:52
7:52
7:50
7:47
 mm
Temp °C
19
19
20
18
18
18
19
19
19
20
20
19
24
23
25
25
24
25
26
25
23
Feels °C
17
17
20
13
12
12
15
15
17
16
16
16
24
22
22
25
23
22
25
24
23
  • 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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