Surf Forecasts:
Praia das Macas surf forecast from 6 Aug 2026:
- Most powerful swell: Thursday 6 Aug, 7PM (local time) - 4.5ft (1.3m), 8s period, NNW swell with 221 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 1.3m 8s and forecast to arrive on Thursday (Aug 06) 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 12s period and expected on Friday (Aug 07) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Thu 6th Aug) | 4.5ft (1.3m) 8s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, Rusty here again. Let's talk about what's happening at Praia das Macas. I'm calling it as I see it, and it's a rough picture. The whole 16-day stretch is a dud, and I'll break it down.
The first possible session is Thursday morning, August 6th, but don't get your hopes up. From that Thursday, August 6th, all the way to Friday, August 21st, there's absolutely nothing worth paddling out for. That's a full 16 days of no-go.
The wind is the main culprit. It's blowing from the N and NNW, right across the face of the swell, turning everything into a choppy, lumpy mess. The swell is mostly short-period windswell from the NNW, with periods as low as 5 seconds and rarely getting above 11 seconds. The combined energy is weak to moderate, reading between 58 and 360 – nothing to write home about. The wave heights barely touch 1.5m, and when they do, like on Saturday, August 15th, with a 1.7m swell from the NNW, the wind is a fresh 30-35 km/h cross-onshore, so it's totally blown out. Even the tiny 0.4m pulse on Sunday, August 9th, with a longer 11-second period, gets ruined by the breeze. The water temp is 69°, which is about average for the season.
This break faces NW, but the swell is coming from the wrong directions, and the wind never gives us a break. It's a beach break, and with these conditions, this setup looks way more interesting for kite surfing than paddle surfing. There's just no clean, rideable wave to be found. Maybe the forecast will shift, but for now, it's a long, empty stretch.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 19°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun morning, min 19°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||
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) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | WNW 8 | W 7 | NW 11 | WNW 7 | NW 10 | NW 8 | NW 8 | NNW 7 | NNW 5 | NW 5 | WNW 10 | WNW 9 | WNW 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 164 | 221 | 216 | 184 | 199 | 127 | 67 | 51 | 35 | 42 | 76 | 74 | 109 | 113 | 34 | 44 | 51 | 100 | 132 | 135 | 162 |
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 | 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 | 3:10PM3.11m | 3:38AM2.85m | ||||||||
Low Tide | 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 | 8:54AM0.18m | 9:29PM-0.05m | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — |
 | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 17 | 18 | 17 | 19 | 19 | 19 | 21 | 22 | 21 | 22 | 20 | 19 | 21 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | NNW 8 | N 8 | W 7 | W 7 | NW 10 | NW 10 | NW 8 | W 6 | NNW 7 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | W 9 |
| kJ | 49 | 70 | 46 | 43 | 42 | 40 | 67 | 31 | 35 | 34 | 50 | 74 | 109 | 20 | 34 | 19 | 40 | 100 | 132 | 135 | 162 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | S 12 | SW 13 | S 12 | S 12 | S 12 | WNW 9 | S 11 | NW 12 | NW 11 | S 11 | S 11 | W 7 | W 11 | W 6 | NNW 9 | NW 12 | NNW 10 | NNW 10 | — | NNW 10 |
| kJ | 9 | 3 | 7 | 3 | 3 | 3 | 26 | 3 | 6 | 42 | 2 | 2 | 21 | 9 | 7 | 8 | 22 | 41 | 35 | — | 33 |
Swell 3 Height (m) Direction Period (s) | SW 12 | — | — | S 12 | — | — | S 12 | — | NW 10 | N 7 | — | — | S 12 | S 12 | WNW 10 | NNW 12 | W 6 | — | NW 7 | — | — |
| kJ | 6 | — | — | 3 | — | — | 3 | — | 4 | 4 | — | — | 3 | 3 | 11 | 15 | 1 | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 8 | NW 8 | WNW 8 | NNW 7 | — | WNW 7 | WNW 7 | WNW 6 | NW 8 | NW 4 | NNW 5 | NW 5 | NNW 5 | NNW 5 | NNW 4 | NNW 5 |
| kJ | 164 | 221 | 216 | 184 | 199 | 127 | 15 | 51 | 20 | — | 76 | 51 | 30 | 113 | 29 | 44 | 51 | 35 | 19 | 42 | 35 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 432 | 16 | 160 | 801 | 160 | 20 | 379 | 58 | 14 | 372 | 14 | 21 | 21 | 160 | 109 | 420 | 14 | 14 | 420 | 15 |
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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