Surf Forecasts:
Praia das Macas surf forecast from 1 Sep 2026:
- Best quality surf: Saturday 5 Sep, 1AM (local time) - 2.5ft (0.7m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 1PM (local time) - 6ft (1.8m), 9s period, NW swell with 516 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 1AM (local time) - 2.5ft (0.7m), 9s period with WNW 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 Saturday (Sep 05) at 1AM. The primary swell is predicted to be 0.7m and 9s period with a secondary swell of 0.6m and 5s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia das Macas in the next 16 days are 1.8m 9s and forecast to arrive on Tuesday (Sep 01) 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 0.3m 2s period and expected on Saturday (Sep 05) at 10AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 5th Sep) | 2.5ft (0.7m) 9s |
| Best Surf | 1AM (Sat 5th Sep) | 2.5ft (0.7m) 9s |
| Most Powerful | 1PM (Tue 1st Sep) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Alright, this is Rusty. Let me level with you: the next couple of weeks are looking pretty bleak for a proper surf. We’ve got a long stretch ahead with nothing that’s really gonna get you out of bed.
For the first two weeks, from the 1st up until the 15th of September, it’s a total grind. The wind has been onshore or cross-shore almost the whole time, trashing what little swell we have. The waves that show up are small, mostly under 3 feet, and the wind just rips them apart. It’s choppy, lumpy, and just plain ugly. There’s a brief moment on the morning of Saturday the 5th where it turns glassy with a light 2ft swell from the WNW, but the energy is weak (89). It’s surfable but ordinary, and it’s more of a tease than anything. The rest of that week and into the next is a write-off. Even when the swell pushes up a bit around the 6th with a 3ft NW groundswell, it’s got that long period and the wind is straight onshore. No good.
Now, the one small glimmer in this long, flat run comes right at the very end. On the morning of Wednesday the 16th of September, we’ve got a pulse of energy coming through at Praia das Macas. The swell is hitting 5ft from the WNW with a very long period of 13 seconds, and the combined energy is a solid 1452. That’s a heap of power. The wind is light and cross-onshore, which is the best we’ve seen in weeks. It’s still not perfect, but for an exposed beach break like this, it’s the clear standout. It’ll be lumpy with those wind ripples, but there’ll be some proper waves to pull into. This is only for experienced surfers though – 5ft with that much power and a long period will be a handful for beginners. This is the one to circle on your calendar.
There’s going to be a very long wait with no real options before that 16th. Just a lot of small, windy, frustrating days.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 18°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon night, light winds from the N by Thu morning). | Days 4-6 Weather SummarySome drizzle, heaviest during Fri afternoon. Warm (max 33°C on Fri afternoon, min 21°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||||
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 9 | NNW 9 | NNW 9 | NW 8 | NNW 7 | NNW 6 | NNW 7 | NNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 11 | NW 11 | NW 11 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 481 | 430 | 449 | 75 | 163 | 107 | 105 | 96 | 64 | 58 | 44 | 68 | 68 | 99 | 88 | 217 | 237 | 229 | 107 | 246 | 226 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-off | glassy | cross-on | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 5:38AM2.72m | 5:55PM2.75m | 6:17AM2.61m | 6:39PM2.56m | 7:04AM2.46m | 7:33PM2.34m | 8:06AM2.30m | 8:48PM2.14m | 9:30AM2.21m | 10:27PM2.08m | 11:05AM2.27m | 11:58PM2.19m | 12:23PM2.48m | 1:04AM2.39m | |||||||
Low Tide | 11:40AM0.27m | 00:04AM0.31m | 12:22PM0.41m | 00:47AM0.49m | 1:14PM0.59m | 1:41AM0.70m | 2:23PM0.76m | 2:57AM0.88m | 4:00PM0.84m | 4:37AM0.91m | 5:40PM0.72m | 6:04AM0.77m | 6:52PM0.49m | ||||||||
 | |  |  | | | | |  | |  |  | | | | | | | | | | |
 | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | — | 8:08 | — | — | 8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 19 | 19 | 21 | 26 | 27 | 26 | 32 | 33 | 32 | 33 | 28 | 24 | 21 | 21 | 21 | 21 | 20 | 19 |
Feels °C | 15 | 15 | 14 | 17 | 17 | 20 | 24 | 23 | 22 | 29 | 29 | 27 | 32 | 27 | 25 | 23 | 22 | 21 | 20 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 14 | NW 8 | NW 8 | NW 7 | NNW 7 | WNW 8 | WNW 8 | NNW 5 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 12 | WNW 11 |
| kJ | 23 | 22 | 21 | 75 | 32 | 27 | 105 | 47 | 64 | 21 | 44 | 68 | 68 | 99 | 88 | 217 | 237 | 229 | 104 | 246 | 226 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NNW 8 | SSW 16 | SSW 15 | NW 9 | SSW 14 | SSW 14 | WNW 8 | WNW 10 | NNW 5 | NNW 5 | NNW 6 | NNW 6 | WNW 8 | S 12 | WNW 9 | WNW 12 | — | NNW 9 |
| kJ | — | — | — | 53 | 24 | 21 | 21 | 20 | 19 | 58 | 38 | 18 | 16 | 22 | 20 | 90 | 3 | 25 | 107 | — | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 15 | — | WNW 10 | SSW 14 | — | SSW 14 | SW 13 | SW 13 | SW 13 | NW 11 | SW 12 | NW 13 | N 7 | — | S 11 | WNW 8 | — | — |
| kJ | — | — | — | 23 | — | 10 | 20 | — | 19 | 7 | 7 | 7 | 5 | 6 | 84 | 4 | — | 2 | 27 | — | — |
Wind waves Height (m) Direction Period (s) | NW 9 | NNW 9 | NNW 9 | NNW 6 | NNW 7 | NNW 6 | — | NNW 7 | NNW 6 | — | NNW 5 | — | SSE 2 | S 3 | — | NW 4 | NW 8 | NW 5 | NNW 6 | NNW 6 | NNW 6 |
| kJ | 481 | 430 | 449 | 69 | 163 | 107 | — | 96 | 51 | — | 30 | — | 1 | 1 | — | 10 | 153 | 62 | 87 | 143 | 150 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 222 | 115 | 14 | 15 | 15 | 16 | 14 | 14 | 1 | 338 | 0 | 0 | 58 | 0 | 62 | 62 | 14 | 14 | 21 | 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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