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Sao Lourenço surfForecast / Ericeira / Portugal
12 Day Weather and Surf, issued 11 am Monday 08 Dec 2025 WETForecast update in hr min s Forecast update imminent
Sao Lourenço surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Sao Lourenço sea temperature is
15.9° C
(Which is slightly cooler than normal)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 Monday (Dec 08) at 9PM. The primary swell is predicted to be 5.0m and 18s period with a secondary swell of 1.5m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sao Lourenço in the next 12 days are 5.5m 18s and forecast to arrive on Saturday (Dec 13) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 7s period and expected on Tuesday (Dec 09) at 12PM.
| Wave Type | Time (WET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Mon 8th Dec) | 16ft (5.0m) 18s |
| Best Surf | 9PM (Mon 8th Dec) | 16ft (5.0m) 18s |
| Most Powerful | 6AM (Sat 13th Dec) | 18ft (5.5m) 18s |
Table - best surf conditions forecast for Sao Lourenço over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Heavy rain (total 22mm), heaviest during Tue morning. Very mild (max 17°C on Mon afternoon, min 12°C on Wed night). Winds decreasing (strong winds from the S on Tue morning, calm by Wed night). | Days 3-6 Weather Summary Heavy rain (total 51mm), heaviest during Fri morning. Very mild (max 15°C on Thu afternoon, min 10°C on Fri night). Winds increasing (light winds from the S on Thu morning, strong winds from the N by Fri morning). | ||||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 12 | 19 | 17 | 16 | 16 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 19 | 17 | 16 | 15 | 14 | 13 | 12 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 2434 | 12845 | 14681 | 8333 | 10676 | 4824 | 4493 | 3820 | 4557 | 3259 | 2021 | 2224 | 2507 | 3241 | 18659 | 18486 | 13933 | 7596 | 3570 | 2283 | 2650 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross | cross | cross | cross- on | on | cross | cross- on | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass |
High Tide / height (m) | 5:12PM 2.61 | 5:30AM 2.88 | 6:06PM 2.43 | 6:25AM 2.71 | 7:04PM 2.27 | 7:24AM 2.53 | 8:08PM 2.16 | 8:27AM 2.38 | 9:14PM 2.13 | 9:33AM 2.29 | 10:17PM 2.16 | 10:35AM 2.25 | 11:13PM 2.24 | ||||||||
Low Tide / height (m) | 10:59AM 0.16 | 11:08PM 0.42 | 11:54AM 0.33 | 12:00AM 0.58 | 12:52PM 0.51 | 12:58AM 0.74 | 1:54PM 0.66 | 2:03AM 0.87 | 2:58PM 0.75 | 3:14AM 0.93 | 4:01PM 0.79 | 4:22AM 0.92 | 4:56PM 0.78 | ||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | |||||||||||||||
| Sunrise | 7:43 | - | - | 7:43 | - | - | 7:45 | - | - | 7:45 | - | - | 7:46 | - | - | 7:47 | - | - | 7:48 | - | - |
| Sunset | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - | - | 5:15 | - |
 | |  |  | |  |  |  |  | |  |  |  |  | | | | | | | | |
Rain (mm) | - | - | - | 10 | 6 | 5 | 1 | - | - | - | - | 12 | 35 | 3 | 1 | - | - | - | - | - | - |
| Temp. °C | 16 | 17 | 16 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 15 | 14 | 11 | 11 | 11 | 13 | 13 | 12 | 13 | 15 | 14 |
| Feels °C (?) | 10 | 11 | 11 | 10 | 14 | 14 | 12 | 11 | 11 | 11 | 12 | 11 | 3 | 5 | 3 | 7 | 7 | 7 | 10 | 13 | 14 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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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.
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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 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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