
Surf Forecasts:
Praia das Macas surf forecast from 3 Aug 2026:
- Most powerful swell: Friday 7 Aug, 1PM (local time) - 5.5ft (1.7m), 8s period, NNW swell with 331 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 1.7m 8s and forecast to arrive on Friday (Aug 07) at 1PM. 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 | 1PM (Fri 7th Aug) | 5.5ft (1.7m) 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 is a bit of a tough stretch for Praia das Macas. The whole 16-day window is pretty much a write-off for decent surf. We’ve got a long, bleak run of nothing worth paddling out for, starting now and not really offering anything until the tail end of the second week.
The problem is the wind. We're stuck in a pattern of moderate to fresh cross-onshore breezes, mostly from the NNW, which just butcher the surface. Even when we get a bump in size, it’s accompanied by lumpy, choppy conditions. The swell energy is all over the place, but it doesn't matter because the quality is just gone.
For most of the first two weeks, from the 3rd of August right through to the 14th, you’re looking at nothing but poor surf. The combined swell energy is mostly moderate (138 to 331), but the wind is a constant problem. The water temp is sitting at 68°, which is pretty average for this time of year, so no surprises there.
The first real glimmer of hope comes on the 15th of August, Saturday morning. We get a bit of a pulse with swell hitting 7 ft from the NNW, but it's a short-period 7 seconds, and the wind is still light cross-onshore. The energy jumps up (345), but it’s only rated as marginal. The Saturday afternoon sees a bigger 8 ft swell from the NNW, but the wind switches to onshore, and the energy is strong (587). Still not clean.
The best chance, and I mean the only one that might get a local out of bed, is Sunday the 16th of August. The morning sees a 8 ft NNW swell with a period of 8 seconds. The combined energy is strong (846). The wind is light from the west, which is a cross-onshore, but it’s the lightest we’ve seen. The conditions are still described as marginal, but with an 8 ft swell and light wind, it’s the standout. This is expert territory at that size, and with the short period, it’s going to be a bit fat and wonky on the beach break. It’s a promise, not a guarantee, this far out.
The Monday the 17th holds a similar 7 ft to 7 ft swell, but the wind freshens again, killing it.
So, there it is. A long dry spell, with a single, promising, but uncertain window around the 16th. If you’re desperate, that’s your look. Otherwise, maybe take up golf.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Mon afternoon, min 18°C on Wed night). Winds increasing (light winds from the NW on Mon night, fresh winds from the N by Thu morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun morning, min 18°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu afternoon, light winds from the NNE by Sat night). | |||||||||||||||||||
Mon 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | ||||||||||||||
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 | W 9 | WNW 9 | WNW 8 | WNW 8 | NW 9 | NW 9 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 6 | NNW 7 | NNW 7 | NW 11 | WNW 7 | W 7 |
Wave Graph | ||||||||||||||||||||
132 | 154 | 129 | 118 | 90 | 86 | 225 | 105 | 227 | 257 | 295 | 322 | 296 | 173 | 90 | 94 | 42 | 36 | 59 | 37 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | 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 |
High Tide | 6:21PM2.69m | 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 | |||||||
Low Tide | 00:34AM0.38m | 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 | ||||||||
— | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | |
8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 21 | 21 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 21 | 21 | 20 | 22 | 21 | 20 |
Feels °C | 22 | 22 | 22 | 21 | 22 | 17 | 15 | 15 | 15 | 14 | 15 | 17 | 17 | 16 | 20 | 19 | 20 | 22 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | W 9 | WNW 9 | WNW 8 | WNW 8 | W 8 | W 10 | W 10 | W 10 | W 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NNW 7 | W 7 | NW 10 | W 7 |
132 | 154 | 129 | 118 | 90 | 60 | 56 | 53 | 49 | 49 | 29 | 28 | 28 | 26 | 26 | 25 | 42 | 36 | 27 | 34 | |
Swell 2 Height (m) Direction Period (s) | NNW 7 | N 8 | NNW 8 | N 9 | NW 11 | NW 9 | SW 12 | WNW 7 | WNW 7 | S 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 11 | WNW 8 | NW 11 | — | NNW 10 |
5 | 5 | 6 | 7 | 56 | 86 | 6 | 17 | 10 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 22 | 31 | — | 37 | |
Swell 3 Height (m) Direction Period (s) | — | SW 13 | SW 13 | NW 12 | SW 12 | WNW 10 | — | S 12 | SW 12 | — | — | — | — | — | — | — | NW 10 | NNW 5 | — | W 12 |
— | 7 | 7 | 5 | 6 | 34 | — | 3 | 6 | — | — | — | — | — | — | — | 4 | 5 | — | 3 | |
Wind waves Height (m) Direction Period (s) | WSW 2 | — | — | — | — | NNW 3 | NW 9 | NNW 5 | NNW 6 | NNW 7 | NNW 7 | NNW 8 | NNW 8 | NNW 7 | NNW 6 | NNW 7 | — | — | WNW 7 | NNW 4 |
1 | — | — | — | — | 1 | 225 | 105 | 227 | 257 | 295 | 322 | 296 | 173 | 90 | 94 | — | — | 59 | 11 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 425 | 14 | 14 | 203 | 20 | 14 | 468 | 269 | 230 | 222 | 30 | 115 | 468 | 160 | 129 | 425 | 20 | 20 | 353 | 120 |
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.











