Surf Forecasts:
Praia das Macas surf forecast from 4 Aug 2026:
- Most powerful swell: Friday 7 Aug, 10AM (local time) - 6ft (1.8m), 8s period, NNW swell with 378 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 1.8m 8s and forecast to arrive on Friday (Aug 07) at 10AM. 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 Thursday (Aug 06) at 1PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Fri 7th Aug) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this Praia das Macas forecast is a tough one. We’re looking at a full 16-day window, but honestly, there’s not a single moment where the conditions line up for a good paddle. The wind is stubborn, and the swell quality just isn’t there.
The first few days, right from Tuesday the 4th of August, we’ve got tiny swell and cross-onshore winds. It’s a no-go. This pattern of messy, choppy conditions continues day after day. The wind is relentless from the north and north-northwest, keeping the surface lumpy and poor. Even when we see a bit of size, like on Thursday the 6th of August, with 6ft of swell from the NNW, the wind is a fresh 22 mph cross-onshore, ruining any chance of a clean wave. The combined energy is moderate, around 338 (moderate wave energy), but it’s all for nothing.
There’s a real tease around the 15th and 16th of August. The swell jumps up – 10ft on the 15th, and 8ft on the 16th, both from the NNW. The combined energy is strong, over 1100 (strong wave energy) on the 15th afternoon. But that’s big, powerful stuff, over 8ft, and definitely for experts only. And even then, the wind is still a fresh cross-onshore, making it messy and dangerous. This setup looks more interesting for kite surfing than paddle surfing.
The water temperature is about average for this time of year, so nothing unusual there. But honestly, with the constant chop and onshore flow, it’s a period to give the board a rest. The consistent poor surf quality means this kind of blank run isn’t unheard of for this area. We’ll have to wait for a change in the weather pattern.
Rusty
Short Range ForecastMostly dry. Warm (max 22°C on Tue morning, min 18°C on Wed night). Winds increasing (light winds from the NW on Mon night, fresh winds from the NNW by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°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 night). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 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 9 | WNW 8 | WNW 8 | NW 9 | NW 9 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NW 11 | NW 7 | W 7 | NNW 9 | NNW 6 | NNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 129 | 118 | 90 | 88 | 225 | 262 | 278 | 295 | 348 | 378 | 331 | 206 | 118 | 102 | 29 | 30 | 67 | 34 | 31 | 99 | 80 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:46AM2.47m | 7:03PM2.56m | 7:32AM2.38m | 7:54PM2.40m | 8:30AM2.28m | 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 | |||||||
Low Tide | 12:46PM0.51m | 1:17AM0.49m | 1:35PM0.63m | 2:09AM0.63m | 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 | ||||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — |
 | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | — | 8:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 22 | 21 | 19 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 19 |
Feels °C | 22 | 21 | 22 | 17 | 15 | 14 | 14 | 14 | 13 | 17 | 17 | 16 | 19 | 19 | 20 | 20 | 19 | 19 | 17 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | N 9 | WNW 8 | WNW 8 | W 10 | W 7 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NNW 6 | W 7 | NW 10 | W 7 | W 6 | NNW 10 | W 7 |
| kJ | 129 | 7 | 90 | 63 | 56 | 26 | 49 | 49 | 29 | 28 | 28 | 26 | 26 | 25 | 29 | 26 | 50 | 32 | 19 | 10 | 14 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NW 12 | NW 11 | NW 9 | SW 12 | W 10 | WNW 7 | S 12 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | WNW 8 | NW 11 | — | NNW 9 | NNW 9 | W 11 | NW 13 |
| kJ | 6 | 5 | 56 | 88 | 6 | 53 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 22 | 30 | — | 34 | 31 | 2 | 27 |
Swell 3 Height (m) Direction Period (s) | SW 13 | N 8 | SW 12 | W 10 | — | SW 12 | SW 12 | — | — | — | — | — | S 12 | — | NNW 12 | N 7 | — | W 12 | W 11 | N 14 | NNW 9 |
| kJ | 7 | 1 | 6 | 19 | — | 6 | 6 | — | — | — | — | — | 3 | — | 15 | 8 | — | 3 | 2 | 4 | 8 |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | — | NNW 3 | NW 9 | NNW 9 | NNW 7 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | — | NNW 5 | NW 7 | NNW 4 | NNW 5 | NNW 6 | NNW 6 |
| kJ | — | 118 | — | 1 | 225 | 262 | 278 | 295 | 348 | 378 | 331 | 206 | 118 | 102 | — | 5 | 67 | 13 | 23 | 99 | 80 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 203 | 30 | 14 | 449 | 285 | 230 | 438 | 115 | 115 | 504 | 30 | 109 | 353 | 20 | 58 | 379 | 115 | 325 | 405 | 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.
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