
Surf Forecasts:
Praia das Macas surf forecast from 31 Jul 2026:
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 4ft (1.2m), 9s period, NW swell with 225 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 Wednesday (Aug 05) at 7PM. 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 15s period and expected on Sunday (Aug 02) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 5th Aug) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you – this outlook for our region is a tough one.
Look, I've scanned the next 16 days for Praia das Macas, and honestly, it's a bit of a write-off. The charts are showing us a persistent problem: a relentless cross-onshore wind that just won't let up. From the very start on Friday, July 31st, right through to the end of the second week, we're looking at a constant battle with moderate to fresh cross-onshore breezes, often from the NNW. This is going to chop up whatever swell is out there, making for messy, lumpy, and pretty much unsurfable conditions.
We start off on Friday the 31st with a tiny 1ft WNW swell, but with a 16 mph cross-shore wind, it's a no-go. The energy is weak (42). Saturday the 1st of August sees a bit more size, a 4ft NNW swell, but that same onshore wind (16 mph) just ruins it. The energy climbs to moderate (210), but it's all for nothing. Every single day through the first week is a repeat of this story: small to moderate swell (2ft to 6ft) but always with a chop-inducing cross-onshore wind.
The only real glimmer of hope is a brief window on the morning of Tuesday, August 4th. We get a clean offshore wind from the WNW at just 3 mph over a 3ft WNW swell. The period is 9 seconds, so it's got a bit of life to it, and the energy is moderate (138). This is the best it gets, but it's still a very small wave. A beginner might find a few fun, clean little crumbly waves, but it's a far cry from a proper standout.
After that, it's back to the same old story. The second week, from around August 9th into the 15th, actually sees some of the biggest swell of the period, with heights hitting 6ft and energy readings pushing into the strong range (over 300). But the onshore wind is just as strong, if not stronger, hitting 22 mph. For a beach break like Praia das Macas, a 6ft wave with a strong onshore wind is not a paddle surfer's friend. That setup is looking a lot more interesting for the kite surfers than for us.
There is no standout in this period. The one clean morning on the 4th is the only thing worth mentioning, but it's too small and isolated to get excited about. The water temp is sitting at 68°, which is about normal for this time of year, so at least a paddle won't be a shock. But the waves? Forget it. A blank run like this is pretty normal for the area when the wind gods are angry. Forecasts can change, but for now, it's a hard pass.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 21°C on Sat afternoon, min 19°C on Fri morning). Winds decreasing (fresh winds from the N on Fri night, light winds from the NW by Sun night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 18°C on Wed night). Winds increasing (light winds from the SW on Mon morning, strong winds from the N by Wed night). | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 8 | NNW 4 | W 10 | W 9 | NNW 6 | NNW 6 | NNW 6 | W 10 | W 10 | W 9 | WNW 9 | WNW 8 | WNW 9 | W 8 | WNW 8 | WNW 8 | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 |
Wave Graph | |||||||||||||||||||||
16 | 28 | 88 | 78 | 107 | 71 | 58 | 78 | 67 | 60 | 86 | 101 | 126 | 111 | 90 | 79 | 125 | 160 | 169 | 161 | 124 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:39PM2.85m | 4:59AM2.59m | 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 | ||||||||
Low Tide | 10:23AM0.31m | 10:52PM0.25m | 10:55AM0.31m | 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 | |||||||
6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | |
— | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 20 | 21 | 19 | 20 | 20 | 20 | 21 | 22 | 22 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 20 | 19 |
Feels °C | 16 | 17 | 16 | 18 | 19 | 17 | 19 | 18 | 20 | 21 | 22 | 24 | 22 | 22 | 21 | 17 | 17 | 15 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | NNW 6 | W 9 | WNW 9 | WNW 8 | WNW 9 | W 8 | WNW 8 | WNW 8 | W 10 | W 7 | W 10 | W 10 | W 10 |
16 | 16 | 88 | 78 | 71 | 56 | 53 | 70 | 26 | 60 | 86 | 101 | 126 | 111 | 90 | 79 | 52 | 38 | 50 | 49 | 48 | |
Swell 2 Height (m) Direction Period (s) | NW 8 | W 11 | NW 11 | NNW 10 | WNW 10 | NNW 8 | NNW 8 | — | W 10 | NNW 5 | NNW 7 | W 9 | N 8 | NW 11 | NW 10 | NNW 9 | SW 12 | W 11 | WNW 7 | S 12 | SW 13 |
15 | 21 | 5 | 19 | 32 | 22 | 20 | — | 67 | 5 | 5 | 44 | 5 | 5 | 27 | 35 | 6 | 57 | 15 | 3 | 7 | |
Swell 3 Height (m) Direction Period (s) | W 12 | — | N 9 | — | — | — | — | — | NNW 8 | NNW 7 | N 5 | N 8 | SW 13 | N 8 | N 9 | W 10 | — | SW 12 | SW 12 | — | S 13 |
3 | — | 2 | — | — | — | — | — | 11 | 10 | 2 | 5 | 7 | 1 | 2 | 19 | — | 6 | 6 | — | 3 | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | — | WSW 2 | — | — | — | — | — | NW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 |
8 | 28 | 64 | 64 | 107 | 71 | 58 | 78 | — | — | 1 | — | — | — | — | — | 125 | 160 | 169 | 161 | 124 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 136 | 887 | 14 | 14 | 449 | 15 | 160 | 948 | 14 | 95 | 425 | 14 | 14 | 62 | 30 | 14 | 917 | 129 | 230 | 964 | 160 |
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.











