Surf Forecasts:
Praia das Macas surf forecast from 31 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 7AM (local time) - 3.5ft (1.0m), 9s period, W swell with glassy winds.
- Most powerful swell: Tuesday 4 Aug, 1AM (local time) - 3.5ft (1.0m), 9s period, W swell with 154 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 7AM (local time) - 3.5ft (1.0m), 9s period with W swell.
Best Forecast Surf Conditions for Praia das Macas this week:
The surf forecast for Praia das Macas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 7AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.2m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia das Macas in the next 16 days are 1.0m 9s and forecast to arrive on Tuesday (Aug 04) at 1AM. 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+) | 7AM (Tue 4th Aug) | 3.5ft (1.0m) 9s |
| Best Surf | 7AM (Tue 4th Aug) | 3.5ft (1.0m) 9s |
| Most Powerful | 1AM (Tue 4th Aug) | 3.5ft (1.0m) 9s |
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 we’ve got for the next couple of weeks. It’s a pretty grim run for the most part, but there is a tiny window if you’re desperate.
We’re looking at Praia das Macas for the whole forecast. Right off the bat, the water temp is about average for this time of year, nothing unusual there. The break is a consistent, exposed beginner spot, and the optimum swell direction is from the NW. The problem is, for the first three days there’s just nothing worth paddling out for. The wind is a messy cross-onshore, and the swell is either tiny or short-period junk. From Friday 31st July through to Monday 3rd August, it’s a write-off.
Then, on Tuesday 4th August morning, things almost get interesting. The wind drops to glassy – that’s a huge plus – and we get a knee-high 1.0ft wave from the WNW with a period of 8 seconds. The combined energy is moderate (132). It’s surfable, but ordinary. The wind picks up again in the afternoon and turns onshore, so your window is the early shift. After that, it’s back to cross-onshore chop and small dribble for the rest of the week.
The real tease comes much later. On Sunday 9th August, we see a spike in swell. The morning brings a 6.2ft wave from the NW with a 10-second period. That’s a solid, powerful groundswell. The energy is strong (724). The wind is a light cross-onshore, so there’ll be some texture on the face. At 6.2ft, this is getting into the big range for a beginner spot, so it’s more for the experienced crew. The afternoon keeps the size but the wind swings onshore, killing the quality. The following Monday and Tuesday see even bigger swell – up to 6.6ft – but the wind is a mess: cross-onshore and choppy. That’s just lumpy, powerful junk, only for the experts, and honestly, it might be more fun for the kite surfers than paddle surfers.
The standout, if you can call it that, is Tuesday 4th August morning. The glassy conditions are a rare gift, but the swell is small. The bigger, more promising swell is Sunday 9th August morning, but it’s a long way out, so treat that with caution. It’s a shame the wind doesn’t line up with the size.
So, head down for a quick, glassy session on the 4th, or keep your fingers crossed for the 9th. Otherwise, it’s a pretty flat and choppy run.
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 18°C on Thu night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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) | NW 8 | NNW 4 | NNW 6 | W 9 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | W 10 | W 9 | W 9 | W 9 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | WNW 10 | WNW 10 | W 7 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 35 | 88 | 78 | 110 | 91 | 56 | 105 | 67 | 60 | 60 | 154 | 120 | 112 | 84 | 45 | 76 | 33 | 33 | 33 | 48 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:26AM2.57m | 4:39PM2.85m | 4:59AM2.59m | 5:12PM2.84m | 5:32AM2.58m | 5:45PM2.79m | 6:07AM2.54m | 6:21PM2.69m | 6:46AM2.47m | 7:03PM2.56m | 7:32AM2.38m | 7:54PM2.40m | 8:30AM2.28m | 9:01PM2.26m | |||||||
Low Tide | 10:23AM0.31m | 10:52PM0.25m | 10:55AM0.31m | 11:24PM0.25m | 11:29AM0.34m | 11:58PM0.29m | 12:05PM0.41m | 00:34AM0.38m | 12:46PM0.51m | 1:17AM0.49m | 1:35PM0.63m | 2:09AM0.63m | 2:39PM0.75m | 3:17AM0.76m | |||||||
 | |  | | | |  | |  | | | | | | | | | | | | | |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — |
 | — | 8:50 | — | — | 8:49 | — | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:45 | — | — | 8:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 19 | 20 | 21 | 19 | 20 | 20 | 20 | 21 | 22 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 21 | 20 |
Feels °C | 17 | 15 | 16 | 19 | 19 | 17 | 20 | 18 | 20 | 21 | 23 | 23 | 23 | 22 | 21 | 21 | 20 | 18 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | NNW 6 | W 9 | W 9 | W 9 | WNW 8 | WNW 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 6 |
| kJ | 16 | 16 | 88 | 78 | 71 | 56 | 53 | 70 | 39 | 60 | 60 | 154 | 120 | 112 | 84 | 45 | 76 | 26 | 23 | 32 | 19 |
Swell 2 Height (m) Direction Period (s) | NW 8 | W 11 | NW 11 | NNW 10 | WNW 10 | N 9 | N 8 | — | W 10 | NNW 5 | NNW 7 | N 8 | N 8 | N 8 | NNW 9 | WNW 10 | N 9 | WNW 10 | WNW 10 | WNW 10 | W 10 |
| kJ | 15 | 21 | 5 | 19 | 32 | 6 | 30 | — | 67 | 9 | 11 | 5 | 5 | 1 | 8 | 32 | 6 | 33 | 33 | 33 | 48 |
Swell 3 Height (m) Direction Period (s) | W 12 | — | N 9 | — | — | — | — | — | S 15 | NNW 7 | N 5 | SW 13 | SW 13 | SW 13 | SW 12 | NNW 9 | NNW 10 | NNW 9 | NW 8 | NW 8 | NW 7 |
| kJ | 3 | — | 2 | — | — | — | — | — | 4 | 10 | 2 | 7 | 7 | 7 | 6 | 8 | 9 | 8 | 15 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 7 | NW 6 | — | — | — | — | — | WNW 2 | — | — | — | — | — | — |
| kJ | 12 | 35 | 81 | 59 | 110 | 91 | 56 | 105 | 13 | — | — | — | — | — | 1 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 163 | 449 | 14 | 14 | 449 | 15 | 20 | 420 | 58 | 106 | 425 | 14 | 0 | 14 | 15 | 15 | 463 | 15 | 15 | 422 | 14 |
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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