
Surf Forecasts:
Praia das Macas surf forecast from 8 Aug 2026:
- Most powerful swell: Friday 14 Aug, 4PM (local time) - 5ft (1.6m), 7s period, NNW swell with 257 kJ wave energy.
Best Forecast Surf Conditions for Praia das Macas this week:
The most powerful waves expected at Praia das Macas in the next 16 days are 1.6m 7s and forecast to arrive on Friday (Aug 14) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 11s period and expected on Saturday (Aug 08) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Fri 14th Aug) | 5ft (1.6m) 7s |
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 at Praia das Macas. I gotta be straight with you – this is a tough one. The next couple of weeks are looking pretty grim for a paddle. We’ve got a long dry spell of poor surf conditions stretching from the start of the forecast right through the middle of August. The wind is almost always cross-onshore, often a moderate to fresh breeze, chopping things up real bad. The swell is small and weak for the first week, with the combined energy of all swells directed here sitting at a measly 80, and it just looks messy. Honestly, for a solid week and a half, there’s nothing worth getting wet for.
Then, around the 19th of August, we start to see a bit more size. But it’s still not good. The wind is still ruining it, and the conditions are only described as "marginal." The swell bumps up over 8 ft – that’s expert territory – but with the onshore wind, it’s going to be a washing machine. Not what you want.
But hold on. The waiting game might just pay off. The real standout, and the only one I’d even consider, is on Sunday, the 23rd of August in the morning. That’s a long way off, so take it with a pinch of salt, but the models are showing a shift. We’ve got a 6 ft swell from the NNW, and the wind is forecast to be glassy – totally calm. That’s a game-changer. The combined energy hits 749, which is a solid, moderate punch. For a beginner-friendly spot like this, clean conditions are everything, and glassy is as good as it gets. That one morning window is the best on offer by a country mile. For the rest of the run, it’s a scratch session at best. The water temp is about average for this time of year, nothing to write home about.
So, if you’re desperate, save your energy for that Sunday session on the 23rd. Before that, it’s a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat afternoon, min 20°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Tue morning, min 19°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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) | N 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | NW 8 | NW 8 | NW 7 | NW 5 | NW 12 | W 10 | WNW 9 | WNW 9 | W 9 | W 9 | NNW 7 | WNW 10 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph | |||||||||||||||||||||
48 | 51 | 70 | 86 | 111 | 104 | 109 | 125 | 82 | 31 | 39 | 71 | 110 | 147 | 136 | 136 | 189 | 166 | 158 | 257 | 180 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | 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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:09AM2.28m | 11:54PM2.25m | 12:27PM2.45m | 1:06AM2.41m | 1:29PM2.69m | 2:04AM2.59m | 2:22PM2.93m | 2:53AM2.75m | 3:10PM3.11m | 3:38AM2.85m | 3:53PM3.20m | 4:19AM2.88m | 4:35PM3.20m | ||||||||
Low Tide | 4:41AM0.80m | 5:34PM0.73m | 6:05AM0.72m | 6:51PM0.53m | 7:12AM0.54m | 7:52PM0.30m | 8:07AM0.35m | 8:43PM0.09m | 8:54AM0.18m | 9:29PM-0.05m | 9:37AM0.07m | 10:11PM-0.10m | 10:18AM0.04m | 10:50PM-0.07m | |||||||
6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | |
— | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | — | 8:35 | — | — | 8:34 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 21 | 22 | 21 | 20 | 21 | 21 | 20 | 21 | 20 | 19 | 21 | 21 | 20 | 20 | 20 | 19 | 20 | 20 | 20 |
Feels °C | 21 | 23 | 22 | 22 | 20 | 19 | 20 | 20 | 19 | 20 | 18 | 17 | 20 | 19 | 17 | 19 | 17 | 15 | 19 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | N 8 | NNW 8 | WNW 7 | WNW 7 | NW 10 | WNW 7 | NW 8 | W 11 | WNW 6 | W 5 | WNW 11 | W 10 | WNW 9 | WNW 9 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | NW 11 | NW 9 |
48 | 21 | 70 | 86 | 49 | 104 | 109 | 9 | 6 | 5 | 39 | 71 | 110 | 147 | 136 | 136 | 123 | 166 | 127 | 60 | 115 | |
Swell 2 Height (m) Direction Period (s) | WNW 9 | S 11 | N 7 | NW 11 | N 6 | NW 9 | W 6 | S 12 | NNW 10 | WNW 10 | NW 12 | NW 10 | NNW 9 | — | NNW 10 | NNW 9 | WNW 11 | NW 10 | S 12 | S 12 | — |
26 | 3 | 9 | 42 | 1 | 42 | 13 | 3 | 10 | 19 | 36 | 50 | 35 | — | 35 | 17 | 49 | 82 | 3 | 3 | — | |
Swell 3 Height (m) Direction Period (s) | S 12 | — | NNW 12 | N 7 | S 11 | S 11 | S 12 | — | WNW 10 | NW 12 | S 11 | — | NNW 10 | — | — | WNW 12 | — | — | — | — | — |
3 | — | 15 | 4 | 2 | 2 | 3 | — | 10 | 24 | 2 | — | 9 | — | — | 15 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 8 | — | — | WNW 7 | N 7 | NW 7 | NW 8 | NW 7 | NW 5 | NNW 4 | NNW 5 | NNW 5 | NNW 6 | NNW 5 | NNW 6 | NNW 7 | NNW 6 | NNW 7 | NNW 7 | NNW 7 |
6 | 51 | — | — | 111 | 1 | 48 | 125 | 82 | 31 | 35 | 44 | 39 | 74 | 66 | 103 | 189 | 137 | 158 | 257 | 180 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 106 | 425 | 14 | 14 | 379 | 14 | 109 | 463 | 14 | 109 | 420 | 14 | 14 | 21 | 14 | 14 | 393 | 21 | 14 | 449 | 14 |
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.











