Surf Forecasts:
Praia das Macas surf forecast from 22 Aug 2026:
- Best quality surf: Saturday 22 Aug, 10PM (local time) - 2.5ft (0.8m), 15s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 10AM (local time) - 8ft (2.5m), 11s period, WNW swell with 1,888 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 10PM (local time) - 2.5ft (0.8m), 15s period with WNW 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 Saturday (Aug 22) at 10PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 1.0m and 9s. Another secondary swell of 0.3m and 3s is also forecast. 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 2.5m 11s and forecast to arrive on Friday (Aug 28) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Sunday (Aug 23) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 22nd Aug) | 2.5ft (0.8m) 15s |
| Best Surf | 10PM (Sat 22nd Aug) | 2.5ft (0.8m) 15s |
| Most Powerful | 10AM (Fri 28th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Howdy, Rusty here. Let’s get into what’s happening on the water.
First things first – it’s a rough start. For Praia das Macas, the next several days through the end of August are all poor surf quality. Nothing worth paddling out for, so save your energy.
The window opens a bit into September. The pick of the entire outlook is Saturday, September 5th (Saturday morning) . We’ve got a 4ft swell out of the northwest with a very long 13-second period – that’s groundswell with real push. The combined energy reading is 800, which is moderate, and with light cross-onshore wind, it should be fairly clean. That kind of long-period NW swell will set up best at a reef or point break. Expect longer waits between sets. Saturday afternoon hangs on with a 5ft NW swell, a 12-second period, and strong energy of 949, but the wind turns onshore so it won’t be as tidy.
Earlier in the run, Friday, August 28th (Friday morning) shows a big pulse of 8ft from the WNW, with an 11-second period and a combined energy reading of 1888 – that’s strong-to-very-strong energy. The downside is a cross-onshore breeze and the conditions are rated marginal. That’s a heavy, expert-only day given the size, but the wind spoils it.
Water temperature sits around 69°, which is pretty average for this time of year.
Over in the second week, Tuesday, September 1st (Tuesday morning) shows a 6ft NW swell with onshore wind – flagged as questionable. But September 5th is the one to watch: promising but still a long-range call.
Not much else to get excited about. The first week is a blank run, but that’s not unusual for this stretch. Forecasts can turn around.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Sun night. Warm (max 21°C on Sun afternoon, min 19°C on Sat morning). Winds increasing (light winds from the NW on Sat morning, strong winds from the SSW by Sun night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed morning. Warm (max 21°C on Tue morning, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 10 | NNW 9 | WNW 13 | WNW 11 | W 10 | WSW 9 | WSW 8 | W 8 | W 7 | WNW 7 | WNW 7 | WNW 6 | WSW 6 | W 6 | W 7 | WNW 8 | WNW 8 | WNW 9 | WNW 11 | NW 11 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 346 | 253 | 1058 | 698 | 500 | 586 | 909 | 588 | 246 | 161 | 114 | 55 | 50 | 113 | 94 | 283 | 372 | 643 | 1888 | 1556 | 940 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:16AM1.99m | 00:04AM1.90m | 12:30PM2.12m | 1:04AM2.05m | 1:21PM2.30m | 1:47AM2.21m | 2:01PM2.49m | 2:23AM2.38m | 2:35PM2.67m | 2:55AM2.53m | 3:07PM2.82m | 3:27AM2.65m | 3:38PM2.93m | 3:58AM2.73m | |||||||
Low Tide | 5:49PM1.05m | 6:08AM1.05m | 6:56PM0.90m | 7:05AM0.89m | 7:41PM0.72m | 7:46AM0.71m | 8:17PM0.54m | 8:21AM0.53m | 8:49PM0.37m | 8:53AM0.37m | 9:20PM0.23m | 9:25AM0.25m | 9:51PM0.13m | ||||||||
 | |  |  |  |  |  |  |  |  | | | | |  | | | | | | | |
 | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 8:22 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:17 | — | — | 8:15 | — | — | 8:15 | — |
mm | — | — | — | 4 | — | 7 | 4 | 1 | — | — | — | — | 3 | — | 1 | 1 | — | — | — | — | — |
Temp °C | 19 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 19 |
Feels °C | 19 | 18 | 20 | 15 | 18 | 17 | 17 | 19 | 21 | 22 | 21 | 22 | 19 | 20 | 20 | 17 | 16 | 17 | 19 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 9 | WNW 13 | WNW 11 | W 10 | WSW 9 | N 8 | S 6 | W 7 | WNW 7 | WNW 7 | WNW 6 | NNW 6 | WNW 9 | W 7 | SW 11 | SW 11 | WNW 9 | WNW 11 | NW 11 | NW 10 |
| kJ | 346 | 253 | 1058 | 698 | 500 | 586 | 10 | 49 | 246 | 161 | 114 | 55 | 15 | 8 | 94 | 5 | 5 | 643 | 1888 | 1556 | 940 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | NNW 9 | SW 6 | N 8 | NNW 8 | SW 13 | NNW 8 | SSW 6 | SW 12 | SW 12 | WNW 10 | WNW 9 | NNW 6 | NW 8 | SW 11 | — | SW 11 | — | — | S 10 |
| kJ | 39 | 39 | 113 | 44 | 33 | 12 | 7 | 12 | 29 | 6 | 6 | 10 | 8 | 4 | 25 | 5 | — | 4 | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | N 8 | SSW 13 | SSW 13 | — | SW 13 | NNW 8 | N 7 | W 10 | SW 12 | NW 10 | SW 11 | SW 11 | — | — | — | — | — | — |
| kJ | 20 | 20 | 19 | 50 | 17 | 17 | — | 7 | 11 | 1 | 2 | 6 | 4 | 5 | 5 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 4 | S 6 | S 5 | WSW 8 | W 8 | — | — | — | — | WSW 6 | W 6 | — | WNW 8 | WNW 8 | — | — | — | — |
| kJ | — | — | — | 29 | 149 | 80 | 909 | 588 | — | — | — | — | 50 | 113 | — | 283 | 372 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 420 | 15 | 127 | 156 | 127 | 426 | 259 | 21 | 62 | 62 | 70 | 127 | 425 | 62 | 562 | 436 | 15 | 14 | 222 | 21 |
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