
Surf Forecasts:
Praia das Macas surf forecast from 8 Aug 2026:
- Most powerful swell: Saturday 15 Aug, 1PM (local time) - 6.5ft (2.0m), 8s period, NNW swell with 508 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 2.0m 8s and forecast to arrive on Saturday (Aug 15) at 1PM. 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 12s period and expected on Monday (Aug 10) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Sat 15th Aug) | 6.5ft (2.0m) 8s |
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 the table for the next couple of weeks at Praia das Macas.
Right off the bat, I gotta be straight with you – the next week and a half is a pretty grim watch. From now right through until late August, the conditions are just not playing ball. We’ve got a long stretch of poor surf with a lot of cross-onshore wind messing things up. The swell that does show up is weak, with combined energy mostly sitting between 72 and 312 (moderate energy at best), and the period is often short. It’s the kind of setup where you’re better off staying on the beach with a cold drink than paddling out.
For a beginner-friendly spot like Praia das Macas, it’s a real shame. The water temp is sitting at 69°F, which is about average for this time of year, so at least the water’s fine. But the wind is just relentless from the north and northwest, and those cross-onshore conditions mean choppy, bumpy faces that don’t do this place any favors.
The first real flicker of hope comes on Sunday, the 16th of August. Early morning, the wind finally drops to a light breeze from the north, only 6 mph, and it’s a cross-shore wind. That’s a big deal here. The swell is pushing 7ft from the NNW with an 8-second period, and the combined energy is strong at 603. It’s still a bit of a messy situation, rated marginal due to tide, but for this stretch, it’s the cleanest we’ll see. That 7ft is solid, but honestly, for a beach break, that’s getting into expert territory, and with a short period like that, it’ll be a bit dumpy. Keep your wits about you.
Monday morning, the 17th, is similar – light north wind, 6ft from the NNW, period 8 seconds, combined energy at 414. It’s a slight step down, but still the best of a bad bunch if you missed Sunday.
Now, for the real standout, you have to look all the way to Friday, the 21st of August. This is the one that’s got my attention, even if it’s a week and a half away and we have to be a bit cautious. The swell jumps to 8ft from the NNW with a 9-second period. The combined energy hits a whopping 1165 in the morning and 1236 in the afternoon – that is strong, powerful energy. The wind is light from the southwest in the morning, just 6 mph cross-onshore, and it shifts to a 9 mph westerly in the afternoon. It’s still marked as marginal due to tide, but with that much power and lighter wind, it’s the best chance for a proper session. But a word to the wise: 8ft with that short period is going to be a heavy, powerful wave. This is not for beginners; this is for experienced surfers only. The crowd situation here can get busy sometimes, so expect a few people out for this one.
Sadly, after that brief highlight, Saturday and Sunday blow out again with strong northerly winds making a mess of things.
So, to wrap it up: there’s a small window on the 16th and 17th for some messy but rideable surf, and a much bigger, more powerful window on the 21st that’s the real one to circle on your calendar. Don’t hold your breath for the rest.
Stay salty,
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sat afternoon, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Tue afternoon, min 19°C on Tue night). Mainly fresh winds. | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 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 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | NW 8 | NW 8 | NNW 7 | NW 12 | NW 12 | W 10 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 11 | WNW 10 | WNW 9 | NNW 7 | NNW 7 |
Wave Graph | ||||||||||||||||||||
51 | 86 | 86 | 91 | 94 | 60 | 141 | 83 | 41 | 40 | 71 | 115 | 158 | 144 | 144 | 108 | 183 | 130 | 251 | 277 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | 11:54PM2.25m | 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 | 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 | |||||||
— | — | 6:45 | — | — | 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 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 20 | 20 | 20 |
Feels °C | 22 | 21 | 22 | 20 | 21 | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 17 | 18 | 17 | 16 | 16 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | WNW 7 | WNW 7 | NW 10 | WNW 7 | NW 8 | W 11 | W 6 | NW 12 | WNW 11 | W 10 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | S 12 | — |
21 | 86 | 86 | 50 | 94 | 60 | 9 | 6 | 39 | 40 | 71 | 115 | 154 | 144 | 144 | 108 | 183 | 130 | 3 | — | |
Swell 2 Height (m) Direction Period (s) | S 11 | N 7 | NW 11 | N 6 | NW 10 | S 12 | S 12 | NNW 10 | WNW 10 | NW 12 | NNW 10 | NNW 10 | — | — | NW 12 | WNW 11 | — | S 12 | — | — |
3 | 9 | 42 | 1 | 44 | 3 | 3 | 10 | 19 | 35 | 40 | 35 | — | — | 37 | 105 | — | 3 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | NNW 12 | N 7 | S 11 | N 7 | S 12 | — | WNW 10 | NNW 9 | S 11 | — | NW 10 | — | S 13 | NNW 10 | — | — | — | — | — |
— | 15 | 4 | 2 | 1 | 3 | — | 10 | 8 | 2 | — | 15 | — | 3 | 18 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WNW 8 | WNW 4 | — | WNW 7 | — | WNW 7 | NW 8 | NNW 7 | NW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 9 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 7 | NNW 7 |
51 | 5 | — | 91 | — | 40 | 141 | 83 | 41 | 40 | 55 | 37 | 158 | 50 | 41 | 61 | 75 | 119 | 251 | 277 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 425 | 16 | 14 | 377 | 14 | 14 | 463 | 109 | 109 | 420 | 14 | 14 | 21 | 15 | 14 | 393 | 21 | 109 | 449 | 109 |
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.











