Sao Lourenço surf break

Sao Lourenço surfForecast / Ericeira / Portugal

information circle12 Day Weather and Surf, issued 5 am Sunday 14 Dec 2025 WET
Forecast 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
16.0° 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 Sunday (Dec 14) at 9PM. The primary swell is predicted to be 2.5m and 14s period. 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 6.0m 18s and forecast to arrive on Friday (Dec 19) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WET) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 14th Dec)8ft (2.5m) 14s
Best Surf12AM (Wed 17th Dec)16ft (5.0m) 13s
Most Powerful 6AM (Fri 19th Dec)20ft (6.0m) 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 33mm), heaviest during Mon afternoon. Very mild (max 15°C on Sun afternoon, min 11°C on Sun morning). Winds increasing (light winds from the S on Sun night, gales from the NNW by Tue afternoon).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu night. Very mild (max 14°C on Wed afternoon, min 11°C on Wed night). Winds increasing (light winds from the ENE on Wed night, strong winds from the NNW by Thu night).

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
3
4
2
0
0
0
0
!
!
3
4
!
!
!
!
!
!
!
0
!
Swell
Height Map
Wave Height (m) & direction (?)
2.5
NW
2.4
NW
2.5
NW
2.5
WNW
2.3
WNW
3.5
WNW
5.5
NW
6
NW
5
NW
4
NW
3
NW
2.5
NW
3.5
WNW
4.5
NW
5
WNW
6.5
NW
6
NW
5.5
NW
5
NW
4
NW
3.5
NNW
Period(s) (?)131314131313111113141313232018171615141413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)225419522609221118763688689692649703521735021977114221705514537227621635412734884565913920
Wind
(km/h)
20
ENE
20
ENE
10
E
15
S
35
SW
45
WNW
65
NNW
65
NNW
45
N
30
NNE
20
N
5
ENE
10
SSE
15
S
15
SSW
40
N
35
N
35
N
35
N
35
N
20
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
offcrosscross-
on
cross-
on
cross-
on
crosscrosscross-
off
crosscross-
off
cross-
off
crosscross-
on
crosscrosscrosscrosscrosscross
High Tide
/ height (m)
10:35AM
2.25
11:13PM
2.24
11:31AM
2.27
12:00AM
2.34
12:19PM
2.32
12:41AM
2.45
1:01PM
2.38
1:20AM
2.55
1:41PM
2.45
1:57AM
2.64
2:18PM
2.50
2:33AM
2.70
2:54PM
2.52
Low Tide
/ height (m)
4:56PM
0.78
5:21AM
0.86
5:44PM
0.75
6:11AM
0.76
6:26PM
0.69
6:53AM
0.66
7:04PM
0.62
7:32AM
0.56
7:41PM
0.56
8:09AM
0.48
8:17PM
0.51
8:45AM
0.43
8:52PM
0.47
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunrise7:48--7:48--7:48--7:50--7:50--7:50--7:52--
Sunset-5:15--5:15--5:15--5:15--5:16--5:16--5:16-
clear
cloud
part cloud
cloud
mod rain
heavy rain
thunderstorm
rain showers
rain showers
clear
clear
clear
part cloud
cloud
mod rain
part cloud
clear
cloud
part cloud
part cloud
part cloud
Rain (mm)
----1013442-----6------
Temp. °C141513151412131313131413131414141313131314
Feels °C (?)911101185103910111112116555511
  • Map Icons:
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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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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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