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Sao Lourenço surfForecast / Ericeira / Portugal
12 Day Weather and Surf, issued 6 pm Thursday 18 Sep 2025 WEST
Best Forecast Surf Conditions for Sao Lourenço this week:
The surf forecast for Sao Lourenço over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 4AM. The primary swell is predicted to be 1.3m and 10s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Sao Lourenço in the next 12 days are 3.0m 12s and forecast to arrive on Monday (Sep 22) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Sep 25) at 4AM.
| Wave Type | Time (WEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 19th Sep) | 4.5ft (1.3m) 10s |
| Best Surf | 4AM (Fri 19th Sep) | 4.5ft (1.3m) 10s |
| Most Powerful | 7AM (Mon 22nd Sep) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Sao Lourenço over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 26°C on Thu afternoon, min 16°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the N by Sun morning). | Days 3-6 Weather Summary Mostly dry. Warm (max 25°C on Wed morning, min 15°C on Sun night). Winds decreasing (strong winds from the N on Sun night, light winds from the NE by Wed morning). | ||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 7 | 7 | 7 | 13 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 5 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 466 | 425 | 281 | 281 | 197 | 137 | 99 | 289 | 294 | 329 | 528 | 1931 | 1699 | 1245 | 603 | 408 | 280 | 197 | 145 | 149 | 20 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross- off | cross | cross | cross | cross | cross- off | off | cross- on | cross- off | off | ||
High Tide / height (m) | 1:56AM 2.49 | 2:08PM 2.81 | 2:34AM 2.64 | 2:45PM 2.93 | 3:08AM 2.74 | 3:19PM 2.99 | 3:39AM 2.81 | 3:51PM 2.98 | 4:09AM 2.83 | 4:21PM 2.92 | 4:38AM 2.80 | 4:51PM 2.81 | 5:06AM 2.73 | ||||||||||
Low Tide / height (m) | 7:49PM 0.42 | 7:57AM 0.50 | 8:28PM 0.27 | 8:34AM 0.36 | 9:01PM 0.17 | 9:07AM 0.25 | 9:31PM 0.13 | 9:39AM 0.20 | 10:00PM 0.13 | 10:09AM 0.20 | 10:28PM 0.19 | 10:39AM 0.25 | 10:56PM 0.30 | 11:10AM 0.35 | |||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||||
| Sunrise | - | - | 7:22 | - | - | 7:22 | - | - | 7:22 | - | - | 7:24 | - | - | 7:24 | - | - | 7:26 | - | - | 7:26 | ||
| Sunset | 7:42 | - | - | 7:39 | - | - | 7:38 | - | - | 7:37 | - | - | 7:35 | - | - | 7:34 | - | - | 7:31 | - | - | ||
 |  |  |  | | | |  | | | | | | | | | | | | | | |||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 26 | 24 | 24 | 25 | 21 | 20 | 20 | 17 | 18 | 18 | 16 | 17 | 18 | 17 | 18 | 19 | 17 | 25 | 24 | 22 | 24 | ||
| Feels °C (?) | 22 | 22 | 23 | 24 | 24 | 19 | 18 | 12 | 12 | 11 | 9 | 9 | 11 | 11 | 13 | 14 | 13 | 21 | 20 | 18 | 20 | ||
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Ericeira
Continuing clean conditions at Sao Lourenço (calm at Torres Vedras wx 17 km from Sao Lourenço). 1.4m 11s groundswell from the WNW to make surfable waves.
17 km away, 1 h 23 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sao Lourenço surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 12 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.
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