Surf Forecasts:
Praia das Macas surf forecast from 29 Jul 2026:
- Most powerful swell: Wednesday 29 Jul, 4AM (local time) - 3.5ft (1.1m), 9s period, NW swell with 194 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 1.1m 9s and forecast to arrive on Wednesday (Jul 29) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 29th Jul) | 3.5ft (1.1m) 9s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, Rusty here again. Let's break it down in feet and the old ways.
To be honest, it's a bit of a grim stretch ahead. We've got a long run of poor surf with cross-onshore winds chopping everything up. The swell is mostly short-period and weak, coming from the NNW. For the first week and a half, you might as well save the wax. There's a blank run from now until the 11th of August before anything decent shows.
The best bet is on Tuesday morning, the 11th of August. Over at Praia das Macas, the wind swings to a clean cross-offshore from the SE, and we’re looking at a 6ft swell from the NNW. The combined energy of all swells is moderate to strong (407). The period is a short 7 seconds, so it won't have that heavy groundswell punch, but with that offshore wind, the faces will be clean and rideable. This spot is a beginner-friendly wave, so it won’t be too gnarly, but it’s worth a session.
The day before, the 10th of August, has a morning with a light cross-shore breeze and a 6ft swell, but it’s only marginal. The 11th is the one to aim for.
After that, the swell drops and the wind turns back onshore, so the window closes. The water is around 68°, which is about normal for this time of year.
This is a long-range heads-up, so the 11th is looking good but not locked in yet. Keep your eyes on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 18°C on Tue night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 18°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||
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 10 | NW 9 | NNW 9 | NW 8 | WNW 10 | WNW 10 | NNW 8 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 6 | W 10 | W 10 | W 9 | W 10 | WNW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 333 | 203 | 138 | 102 | 55 | 54 | 84 | 35 | 46 | 96 | 146 | 87 | 113 | 99 | 54 | 82 | 67 | 40 | 68 | 86 |
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 | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 3:21AM2.45m | 3:34PM2.74m | 3:54AM2.53m | 4:07PM2.82m | 4:26AM2.57m | 4:39PM2.85m | 4:59AM2.59m | 5:12PM2.84m | 5:32AM2.58m | 5:45PM2.79m | 6:07AM2.54m | 6:21PM2.69m | ||||||||
Low Tide | 9:14PM0.44m | 9:18AM0.45m | 9:48PM0.34m | 9:51AM0.36m | 10:20PM0.28m | 10:23AM0.31m | 10:52PM0.25m | 10:55AM0.31m | 11:24PM0.25m | 11:29AM0.34m | 11:58PM0.29m | 12:05PM0.41m | 00:34AM0.38m | |||||||
 |  | |  | | | | | | | | | | | | | | | | | |
 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — |
 | 8:52 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 20 | 19 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 20 | 20 | 19 | 21 | 21 | 20 |
Feels °C | 18 | 18 | 19 | 17 | 16 | 17 | 17 | 16 | 16 | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 9 | NNW 9 | WNW 10 | NNW 8 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | W 10 | W 9 | W 10 | WNW 9 |
| kJ | 13 | 203 | 138 | 36 | 38 | 54 | 35 | 27 | 16 | 16 | 65 | 81 | 79 | 57 | 54 | 68 | 67 | 40 | 68 | 86 |
Swell 2 Height (m) Direction Period (s) | S 13 | WNW 8 | WNW 11 | NW 9 | WNW 10 | NNW 8 | N 10 | — | W 12 | W 11 | NW 11 | NNW 10 | — | N 8 | N 8 | — | NNW 7 | WNW 11 | NNW 8 | NNW 8 |
| kJ | 3 | 6 | 23 | 3 | 55 | 26 | 2 | — | 3 | 10 | 5 | 19 | — | 34 | 29 | — | 10 | 23 | 11 | 6 |
Swell 3 Height (m) Direction Period (s) | — | W 11 | S 13 | S 13 | — | N 10 | — | — | — | — | — | NW 10 | — | — | — | — | W 12 | NNW 7 | S 14 | SW 13 |
| kJ | — | 10 | 3 | 3 | — | 2 | — | — | — | — | — | 4 | — | — | — | — | 3 | 10 | 4 | 7 |
Wind waves Height (m) Direction Period (s) | NNW 10 | NW 4 | — | NW 8 | NNW 4 | NNW 4 | NNW 8 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 5 | NW 3 | NW 3 |
| kJ | 333 | 9 | — | 102 | 13 | 6 | 84 | 35 | 46 | 96 | 146 | 87 | 113 | 99 | 52 | 82 | 25 | 7 | 5 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 204 | 20 | 20 | 463 | 15 | 15 | 603 | 269 | 122 | 449 | 14 | 14 | 425 | 15 | 15 | 420 | 14 | 15 | 21 | 14 |
Best forecast wave conditions in Lisboa | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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