Surf Forecasts:
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, 10AM (local time) - 8ft (2.4m), 14s period, NW swell with 2,202 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 10AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 5s period and expected on Monday (Sep 21) at 4AM.
| Wave Type | Time (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 | 10AM (Sat 19th Sep) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew on this Praia das Macas forecast.
This is a tricky run for the most part. There's some solid swell, but the wind is going to be a real headache. A couple of mornings will dial in perfectly, and those are what you need to aim for. The water temp feels about what you'd expect for this time of year.
Right off the bat, Wednesday the 16th and Thursday the 17th are a complete loss. We've got a 10-foot NNW swell coming in with a nasty 28 mph cross-onshore wind, making it a total mess.
Friday the 18th is still lumpy and onshore, not worth suiting up.
The first real standout is Saturday the 19th. This is the one to call in sick for. Dead calm, glassy morning. That 8-foot NW swell with a very long 14-second period is going to push through with serious power and shape. The energy is pumping (2210). This is big and clean, meaning it's for the experienced crew only – leave the foamie at home. The breeze picks up onshore in the afternoon, so make sure you're in the water at first light.
Sunday the 20th morning is also a good call. A clean 5-6 foot NW groundswell (12s) with a light offshore breeze from the ESE. It’s not as big as Saturday but still a quality session, with moderate energy (822). The afternoon gets messy again. Monday and Tuesday mornings offer a couple of clean, smaller 3-4 foot waves with light offshores. Good for a log or a learner.
The second absolute standout is a week out, on Wednesday the 23rd. Another glassy, dead-calm morning, with a 5-6 foot WNW swell and a very long 15-second period. That's pure, deep-water energy (1381) that will wrap in and offer up some of the cleanest, longest rides of the whole sixteen days. It might break a bit straight with that long period at a beach break, but on a clean, glassy day, you won't care.
After that, the bottom drops out. The swell fades to tiny, worthless waves from the 25th through the 27th, all under choppy cross-onshore winds.
Then there's a pulse of NW swell hitting Monday the 28th and Tuesday the 29th, but the wind is a killer – straight cross-onshore, chopping up what would be a solid 7-8 foot, 15-second groundswell on Monday afternoon. A total heartbreaker, but that's the way it is.
Bottom line: Saturday the 19th morning and Wednesday the 23rd morning are your clear winners. The rest of the time, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu morning, min 17°C on Tue night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Sun night, min 19°C on Fri night). 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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NNW 9 | NNW 9 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NW 15 | NW 14 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 12 | NW 12 | NW 11 | NW 12 | WNW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1441 | 1480 | 2133 | 1203 | 1034 | 1118 | 847 | 488 | 1326 | 2202 | 1589 | 1028 | 822 | 673 | 505 | 255 | 574 | 528 | 413 | 298 | 828 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross | glassy | on | cross | off | on | cross-off | off | on | cross | cross-off | on | cross |
High Tide | 6:10AM2.50m | 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 | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — |
 | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 19 | 20 | 19 | 18 | 20 | 20 | 20 | 22 | 22 | 23 | 26 | 26 | 27 | 26 | 25 | 27 | 25 | 24 | 24 |
Feels °C | 10 | 11 | 12 | 14 | 13 | 11 | 17 | 16 | 19 | 20 | 19 | 20 | 25 | 23 | 24 | 25 | 23 | 22 | 24 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | S 13 | SW 13 | S 12 | NNW 10 | S 12 | SW 16 | NW 16 | NW 14 | NW 15 | NW 14 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 10 | NW 12 | NW 12 | NW 11 | NW 12 | WNW 16 |
| kJ | 3 | 6 | 3 | 1203 | 3 | 10 | 39 | 265 | 1326 | 2202 | 1589 | 1028 | 822 | 673 | 505 | 255 | 574 | 528 | 413 | 298 | 828 |
Swell 2 Height (m) Direction Period (s) | S 13 | — | S 12 | S 12 | S 16 | S 11 | SW 15 | SW 14 | NNW 8 | SW 14 | SW 13 | S 13 | S 13 | S 11 | S 5 | NW 13 | S 10 | S 12 | S 12 | WNW 19 | NW 11 |
| kJ | 3 | — | 3 | 3 | 5 | 3 | 9 | 8 | 477 | 8 | 7 | 3 | 3 | 2 | 1 | 231 | 8 | 3 | 3 | 148 | 268 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 11 | SW 14 | — | — | S 10 | S 13 | SW 13 | S 12 | S 3 | S 12 | S 12 | W 22 | S 11 | NNW 5 |
| kJ | — | — | — | — | — | — | — | 2 | 8 | — | — | 2 | 3 | 6 | 3 | 2 | 3 | 3 | 9 | 2 | 20 |
Wind waves Height (m) Direction Period (s) | NNW 9 | NNW 9 | NNW 10 | — | NNW 9 | NNW 9 | NNW 9 | NNW 8 | — | — | — | — | — | NW 3 | — | — | NW 3 | NNW 4 | — | NNW 5 | — |
| kJ | 1441 | 1480 | 2133 | — | 1034 | 1118 | 847 | 488 | — | — | — | — | — | 2 | — | — | 3 | 20 | — | 14 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 687 | 328 | 115 | 22 | 439 | 115 | 22 | 206 | 14 | 0 | 14 | 20 | 0 | 21 | 0 | 0 | 15 | 14 | 0 | 203 | 14 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Praia das Macas surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest