Surf Forecasts:
Praia das Macas surf forecast from 7 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 7PM (local time) - 6.5ft (2.0m), 10s period, NNW swell with 807 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 2.0m 10s and forecast to arrive on Thursday (Sep 10) 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 10th Sep) | 6.5ft (2.0m) 10s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s look at what’s shaping up for Praia das Macas over the next couple of weeks.
Honestly, the start is pretty grim. Monday 7 September through to Wednesday 9 September – just messy cross‑onshore winds, lumpy conditions, and nothing worth paddling out for. The combined swell energy sits between 200 and 800 (moderate range) but the wind just kills it. Thursday 10 September morning shows a slight flicker – a marginal window with 6 ft NW swell and moderate cross‑shore chop, but it’s still not clean.
Then Saturday 12 September morning turns glassy – dead calm, 4 ft from NNW, short 7‑second period. It’s surfable but very ordinary, energy only 141. A session for the longboard maybe.
Now the real standout lands on Sunday 13 September morning. Clear skies, zero wind – glassy as it gets. A solid 4 ft groundswell rolling in from the NW with a 13‑second period, giving it proper push. Combined energy hits 578 – moderate but well‑directed. This is the pick of the entire period. The swell direction matches the optimum NW for this spot, and with glassy conditions, it’ll be clean and fun for all levels – even beginners, since it’s not too big. Just a heads‑up: with that long period, the waves might wall up a bit on the beach, but the consistency and lack of wind should still make for a good session. Crowds are possible here, so get in early.
Monday 14 September morning is also very good – again glassy, 4 ft NW, 12‑second period, energy 551. Another clean morning for a paddle. After that, the wind starts turning cross‑onshore from Tuesday, and the quality drops fast. By Friday 18 September, we get a big 10 ft NNW swell but with a strong cross‑onshore breeze – messy and blown out, not for beginners, and only for experts if they’re keen on chop.
So bottom line: your best window is the Sunday 13 September morning, with Monday 14 September morning as a close second. After that, it’s back to battling the wind.
Stay stoked,
Rusty
Short Range ForecastMostly dry. Warm (max 21°C on Mon morning, min 18°C on Mon night). Winds increasing (light winds from the NNW on Tue night, strong winds from the N by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sat morning, min 18°C on Thu night). Winds decreasing (fresh winds from the N on Thu night, light winds from the N by Sat morning). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | W 12 | W 12 | WNW 11 | WNW 10 | WNW 9 | NW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NNW 7 | NW 15 | NW 13 | NW 13 | NW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 799 | 628 | 423 | 281 | 180 | 152 | 414 | 612 | 723 | 513 | 335 | 258 | 153 | 151 | 90 | 124 | 111 | 322 | 451 | 545 | 563 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 12:23PM2.48m | 1:04AM2.39m | 1:21PM2.73m | 1:55AM2.59m | 2:09PM2.95m | 2:38AM2.76m | 2:52PM3.09m | 3:17AM2.87m | 3:31PM3.15m | 3:54AM2.92m | 4:08PM3.11m | 4:29AM2.90m | 4:44PM2.99m | ||||||||
Low Tide | 6:52PM0.49m | 7:07AM0.55m | 7:45PM0.26m | 7:56AM0.34m | 8:29PM0.07m | 8:38AM0.17m | 9:09PM-0.04m | 9:17AM0.06m | 9:45PM-0.07m | 9:54AM0.03m | 10:19PM-0.02m | 10:30AM0.08m | 10:52PM0.10m | ||||||||
 | |  | |  |  | | | | | | | | | | | | | | | | |
 | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 19 | 20 | 20 | 18 | 18 | 18 | 20 | 19 | 18 | 20 | 20 | 19 | 22 | 21 | 22 | 24 | 23 | 24 |
Feels °C | 18 | 19 | 16 | 17 | 19 | 20 | 13 | 12 | 12 | 16 | 15 | 13 | 17 | 17 | 16 | 22 | 20 | 22 | 23 | 22 | 24 |
Swell 1 Height (m) Direction Period (s) | W 12 | W 12 | WNW 11 | WNW 10 | WNW 9 | NW 9 | N 14 | NW 15 | NNW 13 | NNW 8 | NNW 11 | NNW 10 | NNW 10 | W 7 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NW 13 | NW 13 | NW 13 |
| kJ | 799 | 628 | 423 | 281 | 180 | 152 | 4 | 8 | 33 | 513 | 196 | 175 | 107 | 4 | 28 | 124 | 111 | 121 | 451 | 545 | 563 |
Swell 2 Height (m) Direction Period (s) | NNW 10 | — | — | — | — | — | — | — | — | NNW 11 | WNW 7 | W 7 | W 7 | WNW 8 | W 8 | WNW 10 | W 9 | NW 15 | NNW 7 | NNW 7 | NNW 7 |
| kJ | 61 | — | — | — | — | — | — | — | — | 115 | 11 | 4 | 4 | 7 | 5 | 33 | 45 | 322 | 76 | 76 | 49 |
Swell 3 Height (m) Direction Period (s) | NW 10 | — | — | — | — | — | — | — | — | — | — | W 10 | W 9 | — | W 11 | S 13 | NW 18 | W 9 | WNW 9 | NW 9 | S 11 |
| kJ | 24 | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 9 | 3 | 49 | 41 | 110 | 79 | 2 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | — | NNW 8 | NNW 8 | NNW 8 | — | NNW 8 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | — | NW 7 | — | — | — | — |
| kJ | 42 | 59 | 37 | 33 | 22 | — | 414 | 612 | 723 | — | 335 | 258 | 153 | 151 | 90 | — | 42 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 14 | 379 | 14 | 14 | 21 | 115 | 307 | 420 | 109 | 20 | 205 | 22 | 20 | 204 | 20 | 0 | 160 | 11 | 0 | 203 |
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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