
Surf Forecasts:
Praia das Macas surf forecast from 8 Sep 2026:
- Best quality surf: Monday 14 Sep, 4AM (local time) - 4.5ft (1.3m), 12s period, NW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 7PM (local time) - 6ft (1.9m), 10s period, NNW swell with 763 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7AM (local time) - 2.5ft (0.7m), 14s 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 13) at 7AM. The primary swell is predicted to be 0.7m and 14s period with a secondary swell of 0.9m and 7s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Praia das Macas in the next 16 days are 1.9m 10s and forecast to arrive on Thursday (Sep 10) 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 5s period and expected on Monday (Sep 14) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Sun 13th Sep) | 2.5ft (0.7m) 14s |
| Best Surf | 4AM (Mon 14th Sep) | 4.5ft (1.3m) 12s |
| Most Powerful | 7PM (Thu 10th Sep) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on offer for Praia das Macas over the next couple of weeks. I’ll be straight with you – it’s a frustrating run. We’ve got a solid gap of poor conditions right through the start, with no real surf recommendation until the second week. The first few days are a write-off, with cross-onshore winds and messy, bumpy surf. The wind stays onshore or cross-shore for most of the period, which is a real shame because the swell isn’t always the problem.
The first real glimmer of hope shows up on Sunday, 13 September. The morning is the standout. We’ve got a clean 3ft swell from the NW, with a period of 13 seconds – that’s a proper groundswell. The wind is light offshore from the SE, and the combined energy is moderate (422). The water temp is sitting at 68°, which is pretty much average for this time of year, so no surprises there. This is the best window on offer. The break is consistent and exposed, and with that offshore, it’s going to be clean. The only caveat is that long-period swells like this (over 11 seconds) can be a bit straight at beach breaks, but with a light offshore, it should still be fun.
Monday morning, 14 September, is another decent shout. Swell drops a touch to 4ft from the NW, but the period is still a solid 12 seconds. The wind is a light cross-offshore from the SE, keeping it clean. Energy is moderate (409). This is a solid second option, but that Sunday morning is the pick.
After that, the wind turns ugly again. We get a bit of a pulse on the 18th and 19th with some bigger swell – 8ft on Friday morning, 8ft in the afternoon – but it’s all cross-onshore and choppy. That much swell (over 8ft on the 18th) is only for experts anyway, and the wind is making it a mess. Honestly, that setup looks more interesting for kite surfing than paddle surfing.
The very end of the run, on Wednesday, 23 September, is interesting but far out. The morning is glassy – a 4ft NW swell with a 10-second period, and the wind is practically nothing from the NNE. Energy is moderate (311). Then the afternoon brings a big, long-period groundswell of 3ft from the WNW with a 16-second period. That’s a proper long-period pulse, but it’s onshore wind and the direction is a bit off. The energy is high (765), but it’s a wait-and-see situation. This is a long-range call, so it’s promising but less certain.
So, to sum it up: the only real standout is Sunday morning, 13 September. That’s the one to pencil in. The rest of the window is mostly a battle with the wind. If you’re a beginner, anything over 5ft gets big, and the 18th and 19th are definitely for experts only, but the wind will ruin it for everyone.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Fri morning, min 18°C on Tue night). Winds increasing (light winds from the NNW on Tue night, strong winds from the N by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 30°C on Sun morning, min 20°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | WNW 9 | NW 9 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NW 11 | NNW 10 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NW 15 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 10 |
Wave Graph | ||||||||||||||||||||
180 | 152 | 115 | 372 | 536 | 382 | 263 | 624 | 186 | 124 | 82 | 78 | 82 | 139 | 335 | 479 | 503 | 383 | 258 | 122 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | off | cross-on | cross | cross-off | on | cross-on |
High Tide | 1:55AM2.59m | 2:09PM2.95m | 2:38AM2.76m | 2:52PM3.09m | 3:17AM2.87m | 3:31PM3.15m | 3:54AM2.92m | 4:08PM3.11m | 4:29AM2.90m | 4:44PM2.99m | 5:03AM2.81m | 5:19PM2.80m | ||||||||
Low Tide | 7:45PM0.26m | 7:56AM0.34m | 8:29PM0.07m | 8:38AM0.17m | 9:09PM-0.04m | 9:17AM0.06m | 9:45PM-0.07m | 9:54AM0.03m | 10:19PM-0.02m | 10:30AM0.08m | 10:52PM0.10m | 11:05AM0.19m | 11:23PM0.28m | |||||||
— | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | |
7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 18 | 18 | 18 | 20 | 19 | 18 | 21 | 20 | 21 | 24 | 25 | 28 | 30 | 29 | 30 | 27 | 26 | 27 |
Feels °C | 17 | 20 | 13 | 12 | 12 | 16 | 15 | 13 | 18 | 18 | 20 | 23 | 22 | 25 | 28 | 25 | 26 | 25 | 24 | 25 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | NW 9 | NW 8 | NW 12 | NW 13 | NW 11 | NW 11 | W 7 | NNW 7 | NNW 9 | NNW 9 | NNW 6 | WNW 9 | W 9 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 10 |
180 | 152 | 115 | 6 | 42 | 179 | 263 | 4 | 186 | 69 | 17 | 78 | 68 | 59 | 335 | 479 | 503 | 383 | 258 | 122 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | N 15 | — | WNW 8 | W 7 | W 10 | NNW 10 | W 7 | WNW 10 | WNW 10 | NW 18 | NW 15 | NNW 7 | NNW 7 | NNW 7 | WNW 9 | WNW 9 | WNW 9 |
— | — | 4 | 4 | — | 11 | 9 | 2 | 107 | 4 | 11 | 55 | 12 | 139 | 47 | 34 | 16 | 26 | 26 | 25 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 7 | W 8 | W 7 | N 9 | S 12 | NW 11 | W 9 | S 12 | S 6 | S 11 | S 4 | NNW 5 |
— | — | — | — | — | — | — | — | 4 | 6 | 4 | 6 | 3 | 32 | 40 | 3 | 3 | 2 | 1 | 5 | |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NNW 5 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 10 | — | NNW 7 | NNW 6 | — | NNW 7 | NNW 7 | — | — | WNW 3 | S 5 | — | — |
16 | — | 71 | 372 | 536 | 382 | 249 | 624 | — | 124 | 82 | — | 82 | 91 | — | — | 1 | 2 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 222 | 115 | 285 | 395 | 115 | 14 | 463 | 22 | 20 | 204 | 23 | 1 | 15 | 14 | 0 | 14 | 11 | 0 | 14 | 7 |
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.










