Surf Forecasts:
Praia das Macas surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 3 Sep, 1PM (local time) - 3ft (0.9m), 7s period, NNW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 7AM (local time) - 7ft (2.2m), 10s period, NW swell with 899 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 1PM (local time) - 3ft (0.9m), 7s 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 03) at 1PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.4m and 9s. 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 2.2m 10s and forecast to arrive on Tuesday (Sep 08) at 7AM. 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 14s period and expected on Thursday (Sep 03) at 7PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Thu 3rd Sep) | 3ft (0.9m) 7s |
| Best Surf | 1PM (Thu 3rd Sep) | 3ft (0.9m) 7s |
| Most Powerful | 7AM (Tue 8th Sep) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Right, let’s get into it. This is Rusty, and we’re looking at Praia das Macas. Straight up, there’s a long, tough wait for any decent surf around here. The next 12 days or so are mostly a write-off—wind is on it, chop is up, and the swell is messy. You’ll be looking at a whole lot of “poor surf conditions” until the back half of the window.
The first real glimmer of hope comes on the morning of the 15th of September. The wind switches to a light offshore from the SE at 9 mph, and the water goes clean. The swell is a tiny 2 ft out of the NW, with a period of 9 seconds. It’s not going to be big, but it’ll be the first clean, surfable waves you’ve seen in a while. The combined energy is weak (125), so it’s a small-wave session for the log.
Now, the standout. The one to circle on the calendar is the morning of Wednesday, the 16th of September. This is the only real highlight in the whole 16-day run. The swell jumps up to a solid 6 ft from the WNW, with a very long period of 15 seconds. That’s a proper groundswell. The combined energy is massive (1460), so there’s plenty of power. The wind is glassy—NNE at 3 mph, which is about as good as it gets. This is going to be clean, lined-up, and punchy. It’s a bit too big for beginners, but for the experienced crew, it’s excellent. The only downside? That long period might make it a bit straight at the beach break, so look for the rip bowls or a corner. Expect crowds, because it’s the only game in town.
The next morning, Thursday the 17th, still has some clean energy as the swell drops to 4 ft, but still with a long 12-second period and glassy conditions. A solid runner-up, but the 16th is the day.
Overall, you’ve got nearly two weeks of waiting for that one morning of magic. Be patient, and be ready for the 16th.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Thu morning, min 20°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun morning, min 17°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
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 7 | NNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 11 | WNW 11 | NNW 7 | NNW 9 | NNW 8 | NNW 7 | NNW 7 | NNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 85 | 79 | 65 | 59 | 44 | 101 | 101 | 106 | 386 | 442 | 304 | 201 | 505 | 534 | 379 | 276 | 615 | 443 | 271 | 220 | 232 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:33PM2.34m | 8:06AM2.30m | 8:48PM2.14m | 9:30AM2.21m | 10:27PM2.08m | 11:05AM2.27m | 11:58PM2.19m | 12:23PM2.48m | 1:04AM2.39m | 1:21PM2.73m | 1:55AM2.59m | 2:09PM2.95m | 2:38AM2.76m | ||||||||
Low Tide | 1:14PM0.59m | 1:41AM0.70m | 2:23PM0.76m | 2:57AM0.88m | 4:00PM0.84m | 4:37AM0.91m | 5:40PM0.72m | 6:04AM0.77m | 6:52PM0.49m | 7:07AM0.55m | 7:45PM0.26m | 7:56AM0.34m | 8:29PM0.07m | ||||||||
 | |  |  | | | | |  | | | |  | | | | | | | | | |
 | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — |
 | — | 8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 33 | 31 | 31 | 26 | 29 | 30 | 28 | 23 | 22 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 19 | 21 | 21 | 19 |
Feels °C | 31 | 27 | 29 | 25 | 26 | 27 | 26 | 22 | 22 | 20 | 17 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 20 | 20 | 17 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NNW 7 | NNW 6 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 11 | NW 10 | WNW 12 | WNW 11 | WNW 11 | NW 10 | — | — | — | — | W 8 |
| kJ | 85 | 79 | 28 | 59 | 44 | 101 | 101 | 106 | 386 | 442 | 304 | 154 | 505 | 534 | 379 | 275 | — | — | — | — | 12 |
Swell 2 Height (m) Direction Period (s) | NW 9 | WNW 8 | WNW 9 | NNW 5 | WNW 10 | NNW 5 | NNW 5 | NW 16 | WNW 9 | WNW 8 | WNW 9 | WNW 14 | S 11 | — | — | — | — | — | — | — | W 8 |
| kJ | 21 | 41 | 65 | 15 | 37 | 11 | 11 | 86 | 124 | 59 | 44 | 201 | 2 | — | — | — | — | — | — | — | 11 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | N 8 | SW 12 | W 16 | WNW 9 | S 11 | — | — | — | — | — | — | — | — |
| kJ | 20 | 20 | 19 | 7 | 7 | 7 | 6 | 6 | 1 | 5 | 5 | 28 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | N 5 | — | — | NNW 6 | N 5 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 7 | NNW 9 | NNW 8 | NNW 7 | NNW 7 | NNW 8 |
| kJ | — | — | — | — | 12 | — | — | 22 | 11 | 18 | 56 | 77 | 99 | 136 | 219 | 276 | 615 | 443 | 271 | 220 | 232 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 15 | 0 | 0 | 14 | 1 | 1 | 334 | 14 | 14 | 506 | 21 | 203 | 462 | 115 | 129 | 468 | 307 | 325 | 597 | 160 |
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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