Surf Forecasts:
Praia das Macas surf forecast from 4 Sep 2026:
- Best quality surf: Friday 4 Sep, 1PM (local time) - 2.5ft (0.7m), 8s period, WNW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 7PM (local time) - 5.5ft (1.7m), 11s period, NNW swell with 673 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 1PM (local time) - 2.5ft (0.7m), 8s 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 Friday (Sep 04) at 1PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.5m and 5s is also forecast. 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 1.7m 11s and forecast to arrive on Wednesday (Sep 09) at 7PM. 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+) | 1PM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Best Surf | 1PM (Fri 4th Sep) | 2.5ft (0.7m) 8s |
| Most Powerful | 7PM (Wed 9th Sep) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a proper look at what's on offer down at Praia das Macas for the next couple of weeks.
Right off the bat, I gotta be straight with you – the outlook is a real mixed bag, and for most of this period, we're looking at a whole lot of nothing special. The water temp is sitting at about 68°F, which is pretty average for this time of year, so no surprises there. The first few days are grim. We've got a bit of a swell on the 4th, but it's weak, with only about 81 (moderate wave energy) and a messy 8-second period. The winds are all over the shop, and the wave comment just says "very ordinary." Friday morning might be glassy, but the swell's a paltry 2ft from the WNW, so it's not worth getting excited about. Honestly, from the 4th right through to the 13th of September, it's a long, dry spell of poor conditions. The wind is constantly onshore or cross-shore, lumpy, and choppy. The swell tries to pick up a little around the 6th and 7th, hitting 4ft to 5ft from the NW, but the wind just ruins it. It's a real shame.
Then, after that long wait, things finally, *finally* look up. The standout window is Monday the 14th and Tuesday the 15th of September. On Monday morning, we get a glassy setup with the wind going light offshore from the NW at just 5 km/h (3 mph). The swell is a clean 4ft from the NW with a reasonable 10-second period, and the combined energy is a solid 380 (moderate wave energy). This is the one to aim for – clean, smooth, and surfable. Tuesday morning is just as good, if not better, with a dead calm, glassy sea, and a 3ft NW swell. The forecast says "expect good surf conditions," which is music to my ears after all that crud.
If you're a beginner, keep an eye on Monday morning – the 4ft swell is right in your sweet spot. Just remember, Praia das Macas can get a crowd *sometimes*, so get in early. The swell direction from the NW is spot on for this break, which is exposed to that direction. Later on the 16th, we see a little cross-offshore wind that cleans things up, but the swell drops right off again. The rest of the week after the 15th goes back to being messy and poor, with lots of onshore wind.
So, to wrap it up: the first week and a half is a write-off. Don't even bother looking at it. But circle Monday the 14th and Tuesday the 15th of September on your calendar. That's your best bet by a country mile.
Rusty.
Short Range ForecastMostly dry. Warm (max 31°C on Fri night, min 18°C on Sun night). Winds increasing (calm on Fri morning, fresh winds from the N by Sun afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 18°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | |||||||||||||||
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 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 11 | WNW 14 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | NNW 9 | NNW 8 | NNW 8 | NW 10 | NNW 12 | NNW 12 | NNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 59 | 44 | 101 | 101 | 106 | 380 | 442 | 298 | 350 | 598 | 541 | 350 | 274 | 192 | 486 | 280 | 274 | 234 | 196 | 595 | 412 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross |
High Tide | 8:48PM2.14m | 9:30AM2.21m | 10:27PM2.08m | 11:05AM2.27m | 11:58PM2.19m | 12:23PM2.48m | 1:04AM2.39m | 1:21PM2.73m | 1:55AM2.59m | 2:09PM2.95m | 2:38AM2.76m | 2:52PM3.09m | 3:17AM2.87m | ||||||||
Low Tide | 2:23PM0.76m | 2:57AM0.88m | 4:00PM0.84m | 4:37AM0.91m | 5:40PM0.72m | 6:04AM0.77m | 6:52PM0.49m | 7:07AM0.55m | 7:45PM0.26m | 7:56AM0.34m | 8:29PM0.07m | 8:38AM0.17m | 9:09PM-0.04m | ||||||||
 |  |  |  | | | | | | | | | | |  | | | | | | | |
 | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 30 | 31 | 29 | 26 | 23 | 22 | 21 | 19 | 21 | 20 | 19 | 19 | 20 | 20 | 19 | 20 | 19 | 20 | 20 | 19 |
Feels °C | 28 | 28 | 30 | 27 | 24 | 21 | 21 | 19 | 16 | 17 | 17 | 16 | 16 | 17 | 19 | 17 | 17 | 15 | 16 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 11 | NW 10 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | — | NW 13 | NW 12 | NW 10 | NNW 10 | WNW 7 | NNW 11 |
| kJ | 59 | 44 | 101 | 101 | 106 | 380 | 442 | 298 | 173 | 598 | 541 | 350 | 274 | 192 | — | 44 | 192 | 234 | 120 | 16 | 412 |
Swell 2 Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NW 16 | WNW 9 | WNW 8 | WNW 9 | WNW 14 | NNW 10 | — | — | — | — | — | NNW 13 | — | W 8 | NNW 12 | — | W 7 |
| kJ | 15 | 9 | 10 | 10 | 86 | 101 | 61 | 44 | 350 | 61 | — | — | — | — | — | 34 | — | 29 | 196 | — | 8 |
Swell 3 Height (m) Direction Period (s) | SW 13 | WNW 10 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | W 18 | WNW 9 | NW 10 | — | — | — | — | — | NW 13 | — | NW 14 | WNW 7 | — | S 15 |
| kJ | 7 | 37 | 7 | 6 | 6 | 6 | 5 | 6 | 26 | 24 | — | — | — | — | — | 7 | — | 51 | 18 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NNW 5 | NNW 6 | NNW 5 | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | NNW 9 | NNW 8 | NNW 8 | NNW 6 | NNW 6 | NNW 12 | — |
| kJ | — | — | — | — | 11 | 18 | 7 | 17 | 54 | 64 | 94 | 106 | 137 | 161 | 486 | 280 | 274 | 97 | 66 | 595 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 62 | 14 | 1 | 14 | 14 | 14 | 205 | 15 | 15 | 426 | 15 | 203 | 420 | 21 | 20 | 569 | 22 | 20 | 204 | 109 |
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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