
Surf Forecasts:
Sao Lourenço surf forecast from 8 Sep 2026:
- Best quality surf: Sunday 13 Sep, 10AM (local time) - 3.5ft (1.1m), 13s period, NW swell with glassy winds.
- Most powerful swell: Thursday 10 Sep, 4PM (local time) - 6ft (1.8m), 11s period, NNW swell with 759 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1AM (local time) - 3ft (0.9m), 6s period with NNW swell.
Best Forecast Surf Conditions for Sao Lourenço this week:
The surf forecast for Sao Lourenço over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 1AM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.3m and 10s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sao Lourenço in the next 16 days are 1.8m 11s and forecast to arrive on Thursday (Sep 10) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 9s period and expected on Sunday (Sep 13) at 10PM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 12th Sep) | 3ft (0.9m) 6s |
| Best Surf | 10AM (Sun 13th Sep) | 3.5ft (1.1m) 13s |
| Most Powerful | 4PM (Thu 10th Sep) | 6ft (1.8m) 11s |
Table - best surf conditions forecast for Sao Lourenço over the next 16 days.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 17°C on Thu night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 31°C on Sun morning, min 19°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 | NW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 11 | NNW 10 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 7 | NNW 15 | NW 13 | NW 12 | NW 12 | NW 11 | NNW 11 | NW 10 |
Wave Graph | ||||||||||||||||||||
241 | 148 | 307 | 419 | 471 | 355 | 759 | 218 | 186 | 121 | 61 | 96 | 82 | 146 | 437 | 520 | 561 | 380 | 207 | 148 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross-on | cross-off | glassy | cross-on | cross-off | glassy | on | glassy |
High Tide | 2:02AM2.63m | 2:16PM3.00m | 2:45AM2.80m | 2:59PM3.15m | 3:25AM2.92m | 3:38PM3.21m | 4:01AM2.96m | 4:15PM3.17m | 4:36AM2.94m | 4:51PM3.04m | 5:10AM2.86m | 5:26PM2.85m | ||||||||
Low Tide | 7:52PM0.27m | 8:03AM0.35m | 8:37PM0.08m | 8:45AM0.17m | 9:16PM-0.04m | 9:25AM0.07m | 9:53PM-0.07m | 10:02AM0.03m | 10:27PM-0.02m | 10:38AM0.08m | 11:00PM0.11m | 11:13AM0.19m | 11:32PM0.29m | |||||||
— | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | |
7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:52 | — | — | 7:51 | — | — | 7:50 | — | — | 7:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 19 | 19 | 18 | 21 | 21 | 18 | 22 | 21 | 20 | 27 | 26 | 27 | 31 | 29 | 29 | 30 | 28 | 25 |
Feels °C | 19 | 21 | 14 | 14 | 13 | 17 | 17 | 14 | 20 | 18 | 20 | 26 | 25 | 24 | 29 | 25 | 26 | 27 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 9 | N 13 | N 15 | NNW 12 | NNW 8 | WNW 7 | NNW 10 | NNW 7 | NNW 9 | NNW 10 | NNW 6 | WNW 9 | WNW 9 | NW 13 | NW 12 | NW 12 | NW 11 | NNW 11 | NW 10 |
241 | 148 | 4 | 4 | 85 | 355 | 11 | 218 | 186 | 68 | 18 | 96 | 68 | 64 | 437 | 520 | 561 | 380 | 207 | 148 | |
Swell 2 Height (m) Direction Period (s) | — | — | W 13 | N 15 | NW 10 | NNW 11 | W 11 | W 7 | NNW 10 | W 7 | WNW 10 | WNW 10 | NW 18 | NNW 15 | NNW 7 | NNW 6 | N 7 | WNW 9 | WNW 9 | WNW 8 |
— | — | 4 | 4 | 25 | 183 | 2 | 9 | 128 | 4 | 10 | 55 | 12 | 146 | 48 | 21 | 15 | 26 | 52 | 24 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WNW 7 | — | W 10 | W 7 | W 8 | W 8 | SW 13 | S 12 | NW 11 | W 9 | S 12 | S 6 | S 11 | SSW 4 | NNW 5 |
— | — | — | — | — | 10 | — | 2 | 4 | 1 | 5 | 7 | 3 | 32 | 40 | 3 | 3 | 2 | 2 | 5 | |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | NNW 8 | NNW 8 | NNW 8 | — | NNW 11 | NNW 7 | — | NNW 7 | NNW 6 | — | NNW 7 | NNW 7 | — | — | — | S 5 | — | — |
16 | — | 307 | 419 | 471 | — | 759 | 195 | — | 121 | 61 | — | 82 | 91 | — | — | — | 2 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 239 | 133 | 261 | 397 | 133 | 35 | 440 | 37 | 38 | 225 | 0 | 0 | 36 | 30 | 0 | 35 | 0 | 0 | 35 | 0 |
Best forecast wave conditions in Ericeira | ||||||||||||||||||||
Best forecast wave conditions in Portugal | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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Information about the Sao Lourenço Surf forecast
The above surf forecast table for Sao Lourenço provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sao Lourenço can be found by selecting the local surf guide option on the grey menu. Our Sao Lourenço 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 (Sao Lourenço) 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 Sao Lourenço 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.
Are you planning a holiday in Ericeira? If you are looking for accommodation near Sao Lourenço, camping, hotels and holiday cottages in Ericeira, consider staying in Torres Vedras which is 17 km (11 miles) away. Other places in and around Ericeira where you can find information about places to rent, and car hire include Sintra which is 24 km (15 miles) away, Rio de Mouro, Loures and Cacem.










