Praia das Macas Surf Break

Lat Long: 38.81° N 9.48° W

Praia das Macas Surf Forecast and Surf Report

Issued: 12 pm 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Praia das Macas sea temperature is
20.0°C
0.5° 

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 30 Aug 2026:

  • Best quality surf: Sunday 6 Sep, 4AM (local time) - 3.5ft (1.0m), 10s period, NW swell with glassy winds.
  • Most powerful swell: Monday 31 Aug, 7PM (local time) - 6.5ft (2.0m), 10s period, NNW swell with 788 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 4AM (local time) - 3.5ft (1.0m), 10s period with NW 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 06) at 4AM. The primary swell is predicted to be 1.0m and 10s period with a secondary swell of 0.5m and 12s. Another secondary swell of 0.7m and 6s is also forecast. 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 Monday (Aug 31) 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 0.2m 16s period and expected on Tuesday (Sep 01) at 7AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 6th Sep)3.5ft (1.0m) 10s
Best Surf 4AM (Sun 6th Sep)3.5ft (1.0m) 10s
Most Powerful 7PM (Mon 31st Aug)6.5ft (2.0m) 10s

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


The Lowdown

Alright, let’s get this straight. I’ve looked at what’s on offer here for the next couple of weeks, and I’ll be honest with you – it’s a pretty grim stretch for surf. We’re talking about a long, dry spell with very little to get excited about. The first real chance of anything worth paddling out for doesn’t show up until the morning of Saturday the 5th of September, and even then it’s a marginal call. Before that, from now through the end of August and into the first week of September, it’s all wind-affected, choppy, and messy. There’s a solid week of poor conditions with cross and cross-onshore winds, moderate to fresh breezes, and lumpy, uninviting waves. The swell energy is weak to moderate at best, with values like 218, 303, 386 – nothing that’ll get your heart racing. The water temperature is sitting around 68°F, which is about normal for this time of year, no big anomalies there.

The only spot we’ve got to work with is Praia das Macas, and it’s a consistent, exposed beginner-friendly beach break that sees swell from the NW. The optimum swell direction for this spot is from the NW, so when the swell does show up, it’s coming from the right angle. But the wind is the killer here. The first decent window comes on Saturday morning, 5th September. We’ve got a 5ft NW swell with a period of 10 seconds, cross-offshore winds from the NE at 15 mph, and the conditions are actually clean. The combined swell energy is moderate at 545. It’s still a marginal call, but if you’re keen, that’s your shot. The crowds are sometimes an issue, so keep that in mind.

Then on Sunday morning, 6th September, it gets a little better. The swell drops to 3ft from the NW with an 11-second period, cross-offshore winds from the ENE at 9 mph, and the conditions are clean. The energy is 354, moderate. Expect good surf conditions – the forecast actually says that. This is the standout of the whole run. Small but clean, with a bit of period to give it some shape. After that, it goes downhill again. Monday morning, 7th September, has a glassy 3ft NNW swell with almost no wind, but the period is only 10 seconds and the energy is weak at 155. Surfable but ordinary. Then the wind picks up again and we’re back to poor conditions for the rest of the second week.

From the 8th of September onward, it’s a wasteland. The swell drops off to 1ft to 3ft, periods are short, and the wind is mostly cross or cross-onshore, with energy levels dropping below 100 at times. There’s a brief spike on the morning of the 14th of September with a 5ft WNW swell, 10-second period, light cross-onshore winds, and moderate energy of 446 – but it’s still a marginal call. That’s a long way out, and given the pattern, I wouldn’t bank on it.

So, the honest truth? If you’re itching for a paddle, your best bet is the morning of Sunday, 6th September at Praia das Macas. Small, clean, and with a bit of period. Saturday morning the 5th is a backup, but it’s marginal. Everything else is either blown out, tiny, or both. This is a classic blank run for this area – when it’s not on, it’s not on. Forecasts can change, but right now, I’d be looking at other plans.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Sun morning, min 17°C on Tue night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 33°C on Fri afternoon, min 18°C on Wed morning). Winds increasing (light winds from the NNE on Thu morning, fresh winds from the NNW by Fri afternoon).

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
1
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)
1.3
NW
8
1.5
NW
9
1.2
NW
9
1.1
NW
9
1.9
NNW
10
2
NNW
10
1.9
NNW
9
1.9
NNW
9
1.7
NNW
9
1.7
NNW
8
1.6
NNW
8
1.3
NNW
7
1.2
NNW
7
1.2
NNW
7
0.9
NNW
7
0.5
NW
13
0.9
WNW
12
1.2
WNW
11
1.5
NW
10
1
WNW
10
0.8
WNW
10
Wave Graph
Metric surfscale
Energy kJ
214
383
230
179
684
772
565
553
454
363
285
193
153
143
82
85
251
311
425
204
125
Wind (km/h)
25
NNW
30
NNW
30
N
35
N
35
N
35
N
35
N
35
N
35
N
20
N
25
NNW
20
N
15
NNE
25
N
20
N
25
N
25
NNE
30
NNE
25
NE
20
NNW
15
NNE
Wind State
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
cross-on
cross
cross
cross
cross
cross-off
cross-on
cross
High Tide
4:42PM2.96m
5:02AM2.77m
5:17PM2.89m
5:38AM2.72m
5:55PM2.75m
6:17AM2.61m
6:39PM2.56m
7:04AM2.46m
7:33PM2.34m
8:06AM2.30m
8:48PM2.14m
9:30AM2.21m
10:27PM2.08m
Low Tide
10:29AM0.15m
10:53PM0.10m
11:03AM0.19m
11:27PM0.17m
11:40AM0.27m
00:04AM0.31m
12:22PM0.41m
00:47AM0.49m
1:14PM0.59m
1:41AM0.70m
2:23PM0.76m
2:57AM0.88m
4:00PM0.84m
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:05
7:05
7:07
7:07
7:07
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:12
8:09
8:08
8:07
8:06
8:04
8:02
 mm
Temp °C
20
20
18
19
19
18
19
19
18
19
20
21
26
25
25
22
33
25
35
32
31
Feels °C
18
17
14
14
14
13
15
15
14
17
18
19
23
22
21
17
27
20
31
28
27
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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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