Surf Forecasts:
Praia das Macas surf forecast from 6 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 6ft (1.9m), 11s period, NNW swell with 792 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 1.9m 11s and forecast to arrive on Thursday (Sep 10) at 4PM. 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+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Thu 10th Sep) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for Praia das Macas over the next 16 days.
The Lowdown
Hey, Rusty here. Let's break down the surf for Praia das Macas over the next 16 days. Right now it's a quiet spell – from today through Saturday the 12th, there's nothing worth the drive. Winds are strong and cross-onshore, the swell's messy, and the scores are zero. Hang tight.
First real hope comes Sunday the 13th. Morning session: light SSE cross-off wind at 6 mph, a chest-high 5ft NW swell (period 7 sec, combined energy 481). Clean and small – ideal for beginners. The afternoon loses the window with a cross-shore breeze, but the morning is a go.
Then Monday the 14th morning is your standout. Glassy conditions – wind from the NNW at 3 mph, calm – and a 8ft groundswell from the NNW at 8 seconds. Combined energy 701 – that's meaty. The waves will be clean, lined up, and punchy. That 8ft is a bit much for beginners, but for anyone with a few seasons under their belt it's a dream. This is the best slot in the entire outlook.
Later in the week it's mostly poor – cross-onshore winds, lumpy faces, no consistency. The second weekend has a couple of weak glimmers: Sunday the 20th morning gets glassy with a 3ft NW swell (energy 144) – surfable but ordinary. Monday the 21st morning sees a light cross-off breeze clean up a 4ft NW swell (289 energy) – decent if you're keen.
Bottom line: aim for Monday the 14th morning if you can, or Sunday the 13th morning as a backup. Everything else is a wait-and-see.
Rusty signing off.
Short Range ForecastMostly dry. Warm (max 22°C on Sat night, min 18°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri morning, min 17°C on Tue night). Winds increasing (moderate winds from the NNW on Tue night, strong winds from the N by Wed night). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 12 | NW 11 | W 14 | W 12 | W 12 | WNW 11 | WNW 10 | WNW 9 | NW 9 | NNW 7 | NNW 8 | NNW 8 | NNW 8 | NNW 11 | NNW 10 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 442 | 304 | 515 | 705 | 628 | 423 | 286 | 184 | 172 | 324 | 550 | 550 | 488 | 792 | 574 | 277 | 220 | 124 | 105 | 139 | 117 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 11:05AM2.27m | 11:58PM2.19m | 12:23PM2.48m | 1:04AM2.39m | 1:21PM2.73m | 1:55AM2.59m | 2:09PM2.95m | 2:38AM2.76m | 2:52PM3.09m | 3:17AM2.87m | 3:31PM3.15m | 3:54AM2.92m | 4:08PM3.11m | ||||||||
Low Tide | 4:37AM0.91m | 5:40PM0.72m | 6:04AM0.77m | 6:52PM0.49m | 7:07AM0.55m | 7:45PM0.26m | 7:56AM0.34m | 8:29PM0.07m | 8:38AM0.17m | 9:09PM-0.04m | 9:17AM0.06m | 9:45PM-0.07m | 9:54AM0.03m | 10:19PM-0.02m | |||||||
 | |  | | | | | | | | | | | | | | | | | | | |
 | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — |
 | — | 8:00 | — | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 21 | 20 | 19 | 19 | 20 | 20 | 18 | 18 | 18 | 18 | 19 | 19 | 23 | 22 | 22 | 26 | 24 | 25 |
Feels °C | 20 | 19 | 16 | 17 | 17 | 17 | 17 | 19 | 20 | 13 | 13 | 12 | 15 | 15 | 16 | 19 | 19 | 21 | 25 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 11 | W 14 | W 12 | W 12 | WNW 11 | WNW 10 | WNW 9 | NW 9 | N 14 | NW 15 | NNW 13 | NNW 8 | W 7 | W 7 | NNW 8 | W 7 | N 9 | NNW 7 | NNW 7 | WNW 11 |
| kJ | 442 | 304 | 515 | 705 | 628 | 423 | 286 | 184 | 172 | 4 | 8 | 67 | 488 | 10 | 4 | 277 | 4 | 6 | 105 | 139 | 91 |
Swell 2 Height (m) Direction Period (s) | NW 8 | WNW 9 | NW 10 | NNW 10 | — | — | — | — | NW 9 | NW 8 | NW 12 | — | NNW 12 | — | W 10 | W 7 | W 8 | W 7 | W 10 | WNW 10 | NW 16 |
| kJ | 82 | 44 | 177 | 61 | — | — | — | — | 20 | 18 | 6 | — | 125 | — | 8 | 4 | 1 | 4 | 8 | 19 | 38 |
Swell 3 Height (m) Direction Period (s) | SW 12 | WNW 18 | W 9 | NW 10 | — | — | — | — | — | — | — | — | WNW 8 | — | — | W 9 | — | W 8 | W 7 | WNW 12 | S 12 |
| kJ | 5 | 61 | 42 | 24 | — | — | — | — | — | — | — | — | 12 | — | — | 2 | — | 1 | 4 | 14 | 3 |
Wind waves Height (m) Direction Period (s) | — | NNW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 4 | — | NNW 7 | NNW 8 | NNW 8 | — | NNW 11 | NNW 10 | — | NNW 8 | NNW 7 | — | W 2 | NNW 7 |
| kJ | — | 24 | 52 | 62 | 78 | 41 | 39 | 30 | — | 324 | 550 | 550 | — | 792 | 574 | — | 220 | 124 | — | 1 | 117 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 14 | 420 | 14 | 14 | 203 | 14 | 14 | 290 | 14 | 239 | 449 | 109 | 22 | 205 | 35 | 20 | 204 | 43 | 1 | 203 | 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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