Surf Forecasts:
Praia das Macas surf forecast from 5 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 4PM (local time) - 4.5ft (1.4m), 8s period, NNW swell with 268 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 1.4m 8s and forecast to arrive on Thursday (Aug 06) 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 12s period and expected on Thursday (Aug 06) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 6th Aug) | 4.5ft (1.4m) 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 cards for the stretch ahead. I'm going to be straight with you – it's a tough run for Praia das Macas. The whole 16-day window is a bit of a struggle, with cross-onshore winds and a lot of sloppy, choppy conditions. The swell energy is mostly moderate, so nothing to write home about from that perspective. The water temp is sitting at 67°F, which is about 1°F cooler than normal for this time of year, so pretty average.
We kick off on Wednesday, August 5th, with a small 2ft NW swell and a 9-second period, but the moderate cross-onshore breeze from the NNW is making it a messy morning. The afternoon doesn't get any better. Thursday, August 6th, sees the swell bump up a little to 4ft to 5ft from the NNW, but the wind picks up to a fresh 19 mph, making it lumpy and poor. Friday the 7th is more of the same with 4ft NNW swell and cross-on wind. Saturday and Sunday (August 8th and 9th) drop back to tiny 2ft to 3ft waves, still cross-onshore and choppy.
The first week of August is a write-off, folks. The winds just won't let up, and the swell is too small or too blown out to offer anything decent. It's a long gap of poor surf.
Now, things get a bit more interesting, but not really for us as surfers. Around Friday, August 14th, we see some proper energy... a 7ft to 8ft NNW swell rolling in, with the combined energy reaching strong levels. But the wind is howling from the North at 28 mph, with strong cross-onshore conditions making it an absolute mess. This is heavy, messy, and blown-out. For a beach break, that's going to be a disaster. Honestly, this setup looks more interesting for kite surfing than paddle surfing. The same goes for the weekend of August 15th and 16th, with that big but ugly swell.
The story doesn't change much as we close out the period. The strong winds persist, and the swell eventually drops back down to 3ft by the end of the week of August 19th, but it's still strong and messy. There simply isn't a single standout session in this forecast. The only break we have to look at is Praia das Macas, and it gets no love from the wind. It's a consistent spot, so it tends not to stay poor for long, but this run is a test of patience. Check back in a few days, the forecasts can change.
Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 21°C on Wed morning, min 19°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 19°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||
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) | NW 9 | NW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | WNW 8 | WNW 7 | NW 11 | NW 7 | WNW 7 | NW 8 | NW 7 | NW 7 | NW 12 | NW 8 | WNW 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 88 | 84 | 101 | 239 | 268 | 256 | 211 | 216 | 118 | 51 | 56 | 38 | 35 | 67 | 49 | 48 | 102 | 69 | 69 | 95 | 100 |
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-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:54PM2.40m | 8:30AM2.28m | 9:01PM2.26m | 9:44AM2.23m | 10:26PM2.18m | 11:09AM2.28m | 11:54PM2.25m | 12:27PM2.45m | 1:06AM2.41m | 1:29PM2.69m | 2:04AM2.59m | 2:22PM2.93m | 2:53AM2.75m | ||||||||
Low Tide | 1:35PM0.63m | 2:09AM0.63m | 2:39PM0.75m | 3:17AM0.76m | 4:02PM0.80m | 4:41AM0.80m | 5:34PM0.73m | 6:05AM0.72m | 6:51PM0.53m | 7:12AM0.54m | 7:52PM0.30m | 8:07AM0.35m | 8:43PM0.09m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — |
 | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 19 | 20 | 20 | 19 | 21 | 21 | 20 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 21 | 20 |
Feels °C | 19 | 18 | 16 | 16 | 16 | 15 | 19 | 19 | 18 | 21 | 21 | 21 | 20 | 20 | 19 | 20 | 18 | 19 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | NW 9 | NNW 9 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | NNW 8 | N 8 | WNW 7 | W 7 | NW 10 | WNW 7 | NW 8 | W 11 | NW 9 | NW 12 | NNW 11 | WNW 10 |
| kJ | 63 | 84 | 101 | 49 | 49 | 46 | 43 | 42 | 40 | 51 | 31 | 38 | 35 | 35 | 49 | 48 | 9 | 23 | 69 | 81 | 100 |
Swell 2 Height (m) Direction Period (s) | NW 9 | W 7 | W 10 | W 7 | S 12 | SW 13 | S 12 | S 12 | S 12 | WNW 9 | S 11 | N 7 | NW 11 | S 11 | NW 9 | W 7 | NW 15 | W 6 | NNW 8 | WNW 11 | NNW 10 |
| kJ | 88 | 27 | 53 | 8 | 3 | 7 | 3 | 3 | 3 | 26 | 3 | 9 | 30 | 2 | 39 | 33 | 9 | 12 | 28 | 40 | 69 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 10 | W 7 | SW 12 | — | — | S 12 | — | — | W 6 | — | NW 12 | N 7 | — | S 11 | S 12 | S 12 | NW 13 | WNW 10 | — | W 5 |
| kJ | 19 | 56 | 26 | 6 | — | — | 3 | — | — | 2 | — | 6 | 4 | — | 2 | 3 | 3 | 46 | 19 | — | 1 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | NNW 4 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NW 8 | WNW 8 | NW 3 | N 3 | NW 7 | N 3 | NNW 4 | NW 7 | NW 7 | NW 6 | NW 8 | NNW 7 |
| kJ | — | 8 | 19 | 239 | 268 | 256 | 211 | 216 | 118 | 15 | 56 | 4 | 1 | 67 | 4 | 4 | 102 | 69 | 39 | 95 | 61 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 21 | 14 | 222 | 468 | 16 | 160 | 968 | 58 | 20 | 422 | 109 | 58 | 432 | 14 | 14 | 449 | 14 | 14 | 420 | 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.
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