Surf Forecasts:
Praia das Macas surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 7AM (local time) - 4.5ft (1.4m), 7s period, W swell with glassy winds.
- Most powerful swell: Sunday 23 Aug, 4AM (local time) - 7ft (2.2m), 12s period, W swell with 1,412 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 7AM (local time) - 4.5ft (1.4m), 7s period with W 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 Tuesday (Aug 25) at 7AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.2m and 7s. 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 2.2m 12s and forecast to arrive on Sunday (Aug 23) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Sunday (Aug 23) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 25th Aug) | 4.5ft (1.4m) 7s |
| Best Surf | 7AM (Tue 25th Aug) | 4.5ft (1.4m) 7s |
| Most Powerful | 4AM (Sun 23rd Aug) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on the cards for the local stretch.
To be straight with you, the next couple of weeks are looking pretty ordinary for a proper paddle session. The swell is around, but the wind is just not playing ball for most of it. The water’s about average for this time of year, nothing unusual there.
The best chance of a decent wave, and it's a long shot, is on Tuesday the 25th of August. We've got a small 4ft swell from the west, with a short period of 7 seconds, so it'll be a bit weak and lumpy on the face. The big win here is the wind: it's glassy, absolutely dead calm. That will make it super clean, even if the waves aren't packing much punch. The combined energy of all swells is weak (164). It's a beginner-friendly spot, so it'll be a good one for a gentle cruise, but don't expect any barrels.
The rest of the period is a write-off. From Saturday the 22nd right through to the end of the month, we're hammered by fresh to strong cross-shore and cross-onshore winds, with a lot of chop and messy conditions. There's a big pulse of swell coming in around the 3rd, 4th, and 5th of September, with waves hitting 7ft to 8ft, and even 10ft on the 6th, but the onshore wind is just ruining it. The combined energy gets strong, hitting 1254 on the 4th, but it's all blown out. That 10ft on the 6th is too big for this break anyway, and the wind is still cross.
So, honestly, there's one small window of glassy, small surf on Tuesday the 25th. If you're desperate for a paddle, that's your best bet. Otherwise, the rest of the 16 days are a right-off for decent surfing.
Rusty.
Short Range ForecastHeavy rain (total 38mm), heaviest during Sun morning. Warm (max 22°C on Sun afternoon, min 18°C on Fri night). Winds increasing (light winds from the WNW on Sat morning, strong winds from the SSW by Sun night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 21°C on Mon night, min 19°C on Wed 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 | W 11 | W 10 | WSW 9 | WSW 8 | WSW 8 | W 7 | W 7 | WNW 7 | WNW 6 | W 6 | WNW 7 | WNW 8 | NW 9 | NW 8 | NW 8 | NW 9 | NW 9 | NW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 346 | 253 | 1179 | 762 | 575 | 572 | 956 | 705 | 242 | 157 | 121 | 60 | 69 | 145 | 204 | 390 | 284 | 147 | 262 | 430 | 1040 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | glassy | cross-on | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross | 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 | 4:41AM1.14m | 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 | — | — | 2 | 22 | 1 | 8 | 3 | 2 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 21 | 20 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 18 | 18 | 18 |
Feels °C | 19 | 18 | 20 | 16 | 20 | 17 | 16 | 19 | 21 | 22 | 21 | 22 | 21 | 19 | 19 | 17 | 16 | 15 | 14 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | NNW 10 | NNW 9 | WNW 13 | W 11 | W 10 | WSW 9 | N 8 | WSW 8 | W 7 | W 7 | WNW 7 | WNW 6 | W 6 | SW 11 | WNW 8 | NW 9 | SW 11 | NW 8 | NW 9 | NW 9 | NW 10 |
| kJ | 346 | 253 | 1179 | 762 | 575 | 572 | 5 | 705 | 242 | 157 | 121 | 60 | 69 | 5 | 204 | 390 | 5 | 147 | 262 | 430 | 1040 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | NNW 9 | N 8 | N 8 | NNW 8 | SW 13 | NNW 8 | S 6 | N 7 | SW 12 | W 10 | NW 10 | SW 11 | NW 9 | SW 11 | — | NNW 8 | NW 12 | S 10 | — |
| kJ | 39 | 39 | 113 | 50 | 33 | 12 | 7 | 12 | 27 | 1 | 6 | 2 | 4 | 5 | 78 | 5 | — | 37 | 6 | 2 | — |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | — | S 13 | NNW 8 | SW 12 | W 10 | SW 12 | W 9 | — | SW 11 | SW 11 | — | NNW 10 | S 11 | — | — |
| kJ | 20 | 20 | 19 | 18 | 17 | 17 | — | 3 | 11 | 6 | 2 | 6 | 2 | — | 5 | 5 | — | 30 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 5 | S 6 | S 5 | WSW 8 | — | — | — | — | — | NW 6 | WNW 7 | — | — | NW 8 | — | — | — | — |
| kJ | — | — | — | 80 | 149 | 83 | 956 | — | — | — | — | — | 10 | 145 | — | — | 284 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 420 | 47 | 126 | 64 | 127 | 426 | 261 | 21 | 0 | 504 | 66 | 15 | 425 | 14 | 21 | 398 | 14 | 21 | 222 | 15 |
Best forecast wave conditions in Lisboa | |||||||||||||||||||||
Best forecast wave conditions in Portugal | |||||||||||||||||||||
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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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