Surf Forecasts:
Praia das Macas surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 4AM (local time) - 2ft (0.6m), 9s period, WNW swell with glassy winds.
- Most powerful swell: Friday 7 Aug, 10AM (local time) - 6ft (1.8m), 8s period, NNW swell with 408 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 4AM (local time) - 2ft (0.6m), 9s period with WNW swell.
Best Forecast Surf Conditions for Praia das Macas this week:
The surf forecast for Praia das Macas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 4AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.7m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia das Macas in the next 16 days are 1.8m 8s and forecast to arrive on Friday (Aug 07) at 10AM. 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 Wednesday (Aug 05) at 4PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 4th Aug) | 2ft (0.6m) 9s |
| Best Surf | 4AM (Tue 4th Aug) | 2ft (0.6m) 9s |
| Most Powerful | 10AM (Fri 7th Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, let’s talk about what’s in the water. I’ve been staring at this forecast for Praia das Macas, and I gotta say, it’s looking a bit bleak. The wind’s been howling from the NNW for most of the next two weeks, and it’s just ruining what little swell we get. It’s a constant cross-onshore mess.
We start on Saturday, August 1st. There’s a 4ft swell out of the NNW, but it’s got a short, weak period of 6 seconds. The energy reading is a low 161 – weak stuff. That NNW wind at 15 mph is blowing straight across the waves, making it choppy and poor. Water’s at 68°, which is normal for this time of year.
Sunday the 2nd is more of the same. A smaller 3ft swell from the same direction. The afternoon brings a 2ft swell from the west with a better 10-second period, but the wind is still cross-on. Look at Monday the 3rd and Tuesday the 4th: Tuesday morning gives us a little hope with a light offshore breeze from the west at 6 mph, but the swell is only 3ft from the WNW and it’s still called poor surf.
The swell actually starts to build around the 5th, 6th, and 7th. By Thursday afternoon the 6th, we’ve got a 5ft NNW swell with an energy reading of 366. Friday morning the 7th bumps up to 6ft and 436. That’s a solid amount of juice for a beach break, but the wind is the enemy here. It’s a fresh cross-onshore wind from the north at 15 to 22 mph, keeping everything lumpy and rough. Honestly, with that kind of wind and chop, this setup looks more fun for kite surfing than for a regular paddle.
Saturday the 8th is still cross-on, and then the swell drops off hard. There’s a real lull from the 9th through the 11th, with energy numbers as low as 44. Tiny, weak waves.
Then we get to the very end. Saturday the 15th and Sunday the 16th bring the biggest surf of the whole window. On the 15th, we’re looking at a 7ft NNW swell with energy at 508. Sunday the 16th hits 8ft with a whopping 990 energy – that’s a lot of power. But the wind is still a strong cross-onshore breeze from the north at 22 to 28 mph. It’s gonna be a wild, messy, lumpy ocean. That size is definitely too big for beginners, and the wind will make it a real fight for the experts. There ain’t a single standout day in this whole run. That constant onshore wind is the story, and it’s not a good one.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Mon night, min 19°C on Sat afternoon). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Mon night). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Tue afternoon, min 18°C on Wed night). Winds increasing (light winds from the NNW on Tue night, fresh winds from the N by Thu afternoon). | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 6 | NNW 6 | NNW 6 | W 10 | W 10 | W 9 | WNW 9 | WNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 90 | 79 | 56 | 70 | 67 | 60 | 132 | 86 | 129 | 118 | 90 | 79 | 172 | 106 | 301 | 141 | 278 | 408 | 348 | 256 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | on | cross | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:12PM2.84m | 5:32AM2.58m | 5:45PM2.79m | 6:07AM2.54m | 6:21PM2.69m | 6:46AM2.47m | 7:03PM2.56m | 7:32AM2.38m | 7:54PM2.40m | 8:30AM2.28m | 9:01PM2.26m | 9:44AM2.23m | 10:26PM2.18m | |||||||
Low Tide | 11:24PM0.25m | 11:29AM0.34m | 11:58PM0.29m | 12:05PM0.41m | 00:34AM0.38m | 12:46PM0.51m | 1:17AM0.49m | 1:35PM0.63m | 2:09AM0.63m | 2:39PM0.75m | 3:17AM0.76m | 4:02PM0.80m | ||||||||
 |  | |  |  | | |  | | | | | | | | | | | | | |
 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — |
 | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 20 | 20 | 20 | 21 | 22 | 23 | 23 | 22 | 22 | 21 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 19 |
Feels °C | 18 | 16 | 19 | 19 | 20 | 22 | 23 | 25 | 23 | 21 | 23 | 20 | 17 | 16 | 15 | 14 | 15 | 18 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | W 10 | W 10 | W 9 | WNW 9 | WNW 7 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | W 8 | NNW 9 | W 10 | W 10 | W 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 71 | 56 | 53 | 70 | 67 | 60 | 132 | 86 | 129 | 118 | 90 | 79 | 72 | 106 | 50 | 70 | 45 | 28 | 28 | 16 |
Swell 2 Height (m) Direction Period (s) | — | N 9 | NNW 8 | NNW 8 | NNW 6 | NNW 7 | NNW 7 | W 9 | NNW 8 | N 9 | NW 11 | NNW 9 | S 12 | W 7 | WNW 7 | S 12 | S 13 | S 12 | S 12 | S 12 |
| kJ | — | 13 | 20 | 19 | 12 | 11 | 5 | 44 | 6 | 7 | 57 | 59 | 3 | 26 | 9 | 3 | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | NNW 8 | — | — | NNW 7 | NNW 5 | — | N 8 | SW 13 | NW 11 | SW 12 | WNW 10 | S 10 | W 10 | SW 12 | — | — | S 12 | — | — |
| kJ | — | 6 | — | — | 11 | 5 | — | 5 | 7 | 5 | 6 | 34 | 2 | 52 | 6 | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 3 | — | WSW 2 | — | — | — | — | — | NNW 9 | NNW 4 | NNW 9 | NNW 6 | NNW 7 | NNW 8 | NNW 8 | NNW 8 |
| kJ | 90 | 79 | 56 | 41 | 3 | — | 1 | — | — | — | — | — | 172 | 34 | 301 | 141 | 278 | 408 | 348 | 256 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 426 | 15 | 58 | 425 | 14 | 127 | 425 | 14 | 21 | 203 | 14 | 58 | 395 | 285 | 325 | 222 | 160 | 115 | 426 | 30 |
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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