
Surf Forecasts:
Praia das Macas surf forecast from 6 Aug 2026:
- Most powerful swell: Tuesday 11 Aug, 4PM (local time) - 3ft (0.9m), 12s period, NNW swell with 251 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 0.9m 12s and forecast to arrive on Tuesday (Aug 11) at 4PM. 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 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Tue 11th Aug) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here, checking in. Let's be straight with you – this forecast is a tough one. We're looking at a 16-day window that’s essentially a write-off for decent surf. The first real option isn't even on the table, and it stays that way.
Right out of the gate, the conditions are all wrong. The key spot here is Praia das Macas. The finder is serving up a zero score for the entire stretch, and the reason is clear: the wind is a constant problem. It’s a cross-onshore breeze from the NNW for almost the whole period, which is just going to tear the surface to bits. The water temp is sitting at 69°, which is bang on average for the time of year, but that’s about the only thing that's normal.
The first few days are a total bust. From Thursday the 6th of August through the following week, we're looking at small, weak swell with poor surf conditions. The wind is a moderate to fresh breeze, making every session a choppy, lumpy mess. There’s a glimmer of slightly bigger swell around the 14th of August, with a 4ft NNW swell and a period of 10 seconds, but that wind is still cross-onshore at 16 mph. The energy picks up a bit (combined energy of 365), but it’s just not clean enough to get excited about. Even when the swell gets bigger into the end of the second week – hitting 8ft by the 18th of August – the wind is howling at 25 mph. That's just messy, blown-out, and only for the most hardcore or those looking for a kite session. The combined energy hits 895, which is strong, but it’s all wasted energy with that wind.
Honestly, there’s nothing to recommend here. You’d be battling a cross-onshore wind on small, weak waves, then later on, big, messy, and dangerous conditions. I’d say sit this one out, get the gear fixed, and wait for a better forecast. This stretch is a clean slate until the wind gods decide to play nice.
- Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Sat morning, min 19°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Sun afternoon, min 19°C on Mon night). Mainly fresh winds. | |||||||||||||||||||
Thu 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 9 | NNW 8 | NNW 8 | W 8 | W 7 | WNW 7 | WNW 7 | WNW 7 | NW 8 | NW 8 | NW 7 | NW 7 | NNW 12 | WNW 10 | WNW 9 | W 9 | W 9 |
Wave Graph | ||||||||||||||||||||
190 | 185 | 75 | 193 | 118 | 50 | 33 | 35 | 63 | 86 | 94 | 60 | 125 | 24 | 63 | 251 | 102 | 135 | 130 | 130 | |
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 | 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 | 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 | — | — | 6:45 | — | — | 6:46 | — | — | 6:47 | — | — | 6:48 | — | — | |
8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — | — | 8:37 | — | — | 8:37 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 19 | 21 | 21 | 20 |
Feels °C | 18 | 17 | 19 | 19 | 19 | 22 | 22 | 21 | 22 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 16 | 19 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | NNW 8 | W 9 | W 9 | NNW 8 | W 8 | W 7 | WNW 7 | NW 10 | WNW 7 | NW 8 | W 11 | NW 7 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | W 9 | W 9 |
70 | 46 | 75 | 42 | 40 | 50 | 33 | 35 | 63 | 50 | 94 | 60 | 9 | 24 | 19 | 40 | 102 | 135 | 130 | 130 | |
Swell 2 Height (m) Direction Period (s) | S 12 | SW 13 | W 9 | S 12 | S 12 | WNW 9 | N 8 | N 7 | NW 11 | N 6 | NW 9 | S 12 | NW 14 | W 6 | NW 12 | S 11 | NNW 11 | NNW 10 | — | NNW 11 |
3 | 7 | 43 | 3 | 3 | 26 | 31 | 9 | 30 | 3 | 43 | 3 | 8 | 7 | 23 | 2 | 47 | 38 | — | 11 | |
Swell 3 Height (m) Direction Period (s) | — | S 13 | S 12 | — | S 12 | S 12 | S 11 | NNW 12 | N 7 | S 11 | S 11 | S 12 | S 12 | WNW 10 | W 6 | NNW 12 | — | — | — | — |
— | 3 | 3 | — | 3 | 3 | 3 | 15 | 4 | 2 | 2 | 3 | 3 | 10 | 3 | 15 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 5 | NNW 9 | NNW 8 | NNW 8 | NW 3 | WNW 3 | — | WNW 7 | N 7 | WNW 6 | NW 8 | NW 4 | NW 7 | NNW 12 | NNW 4 | NNW 4 | NNW 4 | NNW 4 |
190 | 185 | 31 | 193 | 118 | 11 | 2 | 2 | — | 86 | 1 | 49 | 125 | 24 | 63 | 251 | 32 | 16 | 23 | 33 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 426 | 15 | 160 | 801 | 20 | 20 | 425 | 20 | 15 | 377 | 14 | 14 | 463 | 115 | 14 | 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.











