Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 6 am 16 Sep 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
19.2°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 16 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s period, NNW swell with cross-shore winds.
  • Most powerful swell: Saturday 19 Sep, 7AM (local time) - 8ft (2.4m), 14s period, NW swell with 2,350 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 7AM (local time) - 10ft (3.0m), 10s 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 Thursday (Sep 17) at 7AM. The primary swell is predicted to be 3.0m and 10s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Praia das Macas in the next 16 days are 2.4m 14s and forecast to arrive on Saturday (Sep 19) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 5s period and expected on Monday (Sep 21) at 7AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 17th Sep)10ft (3.0m) 10s
Best Surf 7AM (Thu 17th Sep)10ft (3.0m) 10s
Most Powerful 7AM (Sat 19th Sep)8ft (2.4m) 14s

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


The Lowdown

Alright, this is Rusty. Let's get into it.

We’ve got a tricky start ahead at Praia das Macas, with a lot of blown-out, messy surf for the first few days. For a beginner spot that’s consistent, the early week is a write-off unless you’re keen on a kite session. Water temps are sitting at 67°, which is a bit colder than normal for this time of year – you’ll want a decent spring suit.

Wednesday 16th and Thursday 17th are basically a no-go. Strong north-northeast winds are shredding that 8ft to 10ft NNW swell (moderate to strong energy around 1034-1575). It’s cross-onshore and ugly. Not for paddling.

Friday 18th is similar – cross-onshore winds and lumpy conditions. The swell drops a touch to 7ft, but the wind is still ruining it.

Now, here’s the first real standout. Saturday morning, 19th September. This is the one to circle. The wind goes glassy – dead calm. Swell is a solid 8ft from the NW, with a period of 14 seconds (very strong energy at 2006). This is excellent, high-quality groundswell. For experienced surfers, this is going to be special. The wave comment says it’s excellent for experienced surfers. Keep in mind, at this size, it’s too big for beginners. The offshore wind on Saturday afternoon turns onshore, so make the most of that glassy morning.

Sunday 20th morning is another good call. Clean, gentle offshore wind from the SE with a 5ft NW swell (moderate energy, 747) and a 12-second period. Very good surf conditions. Crowds are possible here sometimes, but that early morning clean window is worth it.

Monday 21st and Tuesday 22nd mornings both offer clean, offshore conditions with smaller, fun waves (3ft to 4ft). Good for a longboard or a smaller board when the swell drops.

Wednesday 23rd morning is a late-week standout. We’re looking at a clean 6ft swell from the WNW with a very long 15-second period (strong energy at 1574). Light, cross-offshore breeze. This is excellent for experienced surfers – that long period will push through with real power. Again, size is pushing the limits for beginners.

Thursday 24th morning is glassy again, with a fun 4ft WNW swell. Very good conditions.

There’s a bit of a drop-off in quality towards the end of the month as winds turn messy again, but Saturday 26th morning is another morning of glassy conditions and a clean 6ft WNW swell (very strong energy at 1343). Excellent for experienced surfers.

Looking into the first week of October, Thursday 1st October morning shows promise: glassy conditions with a 6ft NNW groundswell. Good, clean potential.

Gaps in the good stuff are short – a day here or there – but the pattern is clear: mornings are the ticket, especially those glassy or offshore windows.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Fri night, min 17°C on Wed morning). Winds decreasing (near gales from the N on Wed afternoon, light winds from the NE by Fri night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 27°C on Sun morning, min 21°C on Sat morning). Wind will be generally light.

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
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
2
4
2
2
3
0
1
2
0
0
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
NNW
9
3
NNW
9
3.5
NNW
10
2.5
NNW
10
2.5
NNW
9
2.5
NNW
9
2.3
NNW
9
2
NNW
8
1.8
NW
14
2.3
NW
14
2
NW
13
1.8
NW
13
1.6
NW
12
1.6
NW
11
1.4
NW
11
1.1
NW
10
1.3
NW
12
1.2
NW
11
1.1
NW
11
0.9
WNW
18
1.7
WNW
16
Wave Graph
Metric surfscale
Energy kJ
1530
1569
2024
1310
1034
1118
785
547
1290
1998
1367
1012
747
650
453
235
465
357
278
525
1393
Wind (km/h)
50
N
50
N
45
N
25
NNE
40
N
40
N
25
N
30
NNW
20
N
0
SSE
15
WNW
15
NNE
15
SE
15
NW
15
NNE
15
SE
20
WNW
20
N
10
SE
10
NW
10
N
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
glassy
on
cross
off
on
cross
off
on
cross
off
on
cross-on
High Tide
6:31PM2.32m
6:48AM2.31m
7:14PM2.08m
7:37AM2.11m
8:15PM1.88m
8:51AM1.96m
9:54PM1.78m
10:36AM1.95m
11:34PM1.85m
11:57AM2.08m
00:34AM2.01m
12:48PM2.28m
1:16AM2.21m
Low Tide
12:17PM0.56m
00:29AM0.71m
12:58PM0.78m
1:10AM0.93m
1:54PM0.99m
2:10AM1.11m
3:24PM1.12m
3:52AM1.20m
5:17PM1.08m
5:34AM1.10m
6:26PM0.92m
6:33AM0.92m
7:09PM0.71m
clear
clear
clear
clear
part cloud
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>
7:18
7:20
7:20
7:22
7:22
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:45
7:44
7:42
7:39
7:38
7:37
7:36
 mm
Temp °C
17
19
19
19
19
18
19
19
20
23
23
25
27
26
25
26
26
24
25
23
23
Feels °C
9
11
11
14
13
11
15
15
20
22
20
21
26
24
23
26
23
20
24
21
21
  • 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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