
Surf Forecasts:
Praia das Macas surf forecast from 17 Jul 2026:
- Most powerful swell: Tuesday 21 Jul, 4PM (local time) - 4ft (1.2m), 9s period, NNW swell with 222 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 1.2m 9s and forecast to arrive on Tuesday (Jul 21) at 4PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 21st Jul) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, grab a coffee and listen up. Rusty here, looking at the charts for our local stretch.
To be honest, the next week and a half is a proper write-off for Praia das Macas. The wind is a problem. It's coming from the NNW, sometimes NW, and it's almost always cross-onshore, which is the kiss of death for getting any kind of clean face. The swell is small and weak, with combined energy mostly under 100 (32 to 99). It's just a messy, choppy mess. You're looking at tiny waves, 1 to 4 feet, and a short, weak period of 4 to 8 seconds. This isn't surfing, it's just bobbing around in a washing machine. The water temp is about average for this time of year, so nothing to write home about there.
The real story, and the only thing that gets my pulse going, is the end of the month. The 26th of July, a Sunday, things start to get serious. The swell jumps up to 10 feet from the NNW with a period of 9 seconds, and the combined energy is massive at 1202. That's a lot of water moving. But, and it's a big but, the wind is still a strong 25 mph cross-onshore. It's going to be a war zone. Messy, lumpy, and blown out. That's not a paddle-out for the faint of heart.
Then, the real window opens up on the 27th of July, Monday morning. The swell is still solid at 8 feet from the NNW, and the energy is still huge at 1263. The wind drops to a gentle 9 mph cross-on. This is the standout. It's the first time in the whole 16-day period that the conditions come together. 8 feet is a big wave, so this is strictly for experienced surfers only. It's going to be powerful and the long period of 9 seconds means you'll get some proper lulls between sets. The Tuesday morning on the 28th of July looks even better for that window, with the swell holding at 8 feet, the energy at 1160, and the wind dropping to a light 6 mph cross-on. That's as close to clean as we're going to get. It’s a short window, but it’s the only one.
For the rest of the run, from the 29th of July on, the wind picks right back up. The swell stays big, but it's all blown out and messy. This setup, with that much swell and that much wind, honestly looks more interesting for kite surfing than paddle surfing.
So, the long and short of it: you’ve got nearly two weeks of absolute rubbish, then a couple of mornings (the 27th and 28th of July) that are worth a look if you're an expert. After that, it's back to the wind. Keep your eyes on the forecasts for that window, but don't hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu night, min 18°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun night, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | WNW 8 | NW 4 | NNW 4 | NNW 4 | NW 4 | NNW 5 | NNW 5 | NNW 6 | NW 5 | NW 6 | NNW 7 | NNW 7 | NNW 7 | NNW 9 | NNW 8 | NNW 9 | NNW 10 | NW 7 | NNW 7 | NNW 9 | NNW 8 |
Wave Graph | |||||||||||||||||||||
22 | 13 | 17 | 16 | 21 | 27 | 36 | 63 | 42 | 44 | 142 | 127 | 108 | 222 | 111 | 106 | 103 | 49 | 40 | 176 | 153 | |
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-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | on | cross-on |
High Tide | 5:26AM2.76m | 5:42PM3.08m | 6:11AM2.66m | 6:27PM2.92m | 6:56AM2.52m | 7:13PM2.70m | 7:42AM2.37m | 8:01PM2.46m | 8:33AM2.24m | 8:55PM2.23m | 9:31AM2.13m | 10:00PM2.06m | 10:39AM2.08m | 11:15PM1.99m | |||||||
Low Tide | 11:23AM0.16m | 00:01AM0.08m | 12:07PM0.27m | 00:45AM0.24m | 12:52PM0.43m | 1:29AM0.44m | 1:40PM0.61m | 2:16AM0.64m | 2:34PM0.79m | 3:08AM0.82m | 3:40PM0.93m | 4:12AM0.95m | 4:57PM0.99m | ||||||||
6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:30 | — | — | |
— | — | 9:00 | — | — | 9:00 | — | — | 9:00 | — | 8:59 | — | — | 8:58 | — | — | 8:58 | — | — | 8:57 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 19 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
Feels °C | 18 | 17 | 16 | 18 | 17 | 17 | 18 | 17 | 19 | 18 | 18 | 18 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | W 8 | N 7 | W 8 | WNW 11 | NNW 7 | NNW 9 | NNW 8 | NNW 9 | NNW 10 | NW 7 | NNW 7 | NNW 9 | NNW 8 |
22 | 13 | 13 | 13 | 13 | 6 | 11 | 16 | 12 | 15 | 10 | 24 | 108 | 222 | 111 | 106 | 103 | 49 | 40 | 176 | 153 | |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 5 | SW 5 | SW 19 | NW 8 | W 9 | NNW 9 | NW 9 | NNW 8 | WNW 12 | W 7 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | NNW 9 | WNW 9 | WNW 9 |
1 | 1 | 1 | 1 | 15 | 3 | 7 | 8 | 20 | 14 | 14 | 10 | 37 | 35 | 33 | 32 | 31 | 28 | 28 | 16 | 15 | |
Swell 3 Height (m) Direction Period (s) | NW 5 | — | S 14 | S 13 | — | W 10 | NW 10 | SW 18 | W 13 | WNW 8 | SW 16 | SW 16 | W 7 | SW 14 | W 6 | SW 14 | SW 13 | NNW 9 | WNW 9 | SW 12 | S 13 |
1 | — | 4 | 3 | — | 2 | 4 | 12 | 3 | 13 | 10 | 10 | 4 | 8 | 1 | 8 | 7 | 16 | 16 | 6 | 3 | |
Wind waves Height (m) Direction Period (s) | WNW 4 | NW 4 | NNW 4 | NNW 4 | NW 4 | NNW 5 | NNW 5 | NNW 6 | NW 5 | NW 6 | NNW 7 | NNW 7 | — | WNW 4 | WNW 5 | — | NW 3 | — | — | NW 3 | — |
8 | 12 | 17 | 16 | 21 | 27 | 36 | 63 | 42 | 44 | 142 | 127 | — | 13 | 14 | — | 2 | — | — | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 887 | 1357 | 581 | 526 | 379 | 244 | 216 | 379 | 192 | 204 | 21 | 120 | 115 | 62 | 54 | 62 | 62 | 20 | 106 | 568 | 20 |
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.










