Sao Lourenço Surf Break

Lat Long: 39.01° N 9.42° W

Sao Lourenço Surf Forecast and Surf Report

Issued: 6 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sao Lourenço sea temperature is
19.7° C
0.9° 

Sao Lourenço surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Sao Lourenço surf forecast from 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 1AM (local time) - 4ft (1.2m), 8s period, NNW swell with glassy winds.
  • Most powerful swell: Sunday 23 Aug, 7AM (local time) - 10ft (3.0m), 9s period, NNW swell with 1,400 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 1AM (local time) - 4ft (1.2m), 8s 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 Wednesday (Aug 19) at 1AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Sao Lourenço in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Aug 23) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Wed 19th Aug)4ft (1.2m) 8s
Best Surf 1AM (Wed 19th Aug)4ft (1.2m) 8s
Most Powerful 7AM (Sun 23rd Aug)10ft (3.0m) 9s

Table - best surf conditions forecast for Sao Lourenço over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 24°C on Tue morning, min 19°C on Thu night). Winds increasing (calm on Tue night, fresh winds from the N by Thu night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Fri morning, min 18°C on Sat night). Mainly strong winds.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
NNW
8
1.4
NNW
8
1.2
NNW
8
0.9
NNW
7
0.9
NNW
7
0.5
WNW
9
0.6
WNW
9
0.6
WNW
9
1.7
NNW
7
1.6
NNW
7
2.2
NNW
10
2.2
NNW
7
2.4
NNW
8
2.3
NNW
8
3
NNW
8
3
NNW
8
2.5
NNW
8
2.2
NNW
8
1.9
NNW
8
1.5
NNW
7
1.4
NNW
6
Wave Graph
Metric surfscale
Energy kJ
270
237
159
94
70
50
62
61
329
242
943
462
655
621
998
1201
886
618
441
225
139
Wind (km/h)
15
SSW
25
SW
5
SSW
5
SW
15
WNW
5
NNW
5
NW
25
NNW
35
N
30
NNW
30
NNW
30
NNW
30
NNW
35
NNW
40
NNW
40
NNW
35
NNW
40
NNW
35
NNW
30
NNW
20
NNW
Wind State
cross
cross-on
glassy
cross-on
on
glassy
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
High Tide
7:21PM2.44m
7:44AM2.32m
8:08PM2.18m
8:37AM2.15m
9:12PM1.98m
9:50AM2.03m
10:42PM1.88m
11:22AM2.03m
00:11AM1.94m
12:36PM2.16m
1:11AM2.08m
1:28PM2.34m
1:54AM2.25m
Low Tide
1:04PM0.59m
1:27AM0.69m
1:50PM0.80m
2:12AM0.91m
2:50PM1.00m
3:15AM1.09m
4:18PM1.11m
4:48AM1.16m
5:56PM1.07m
6:14AM1.07m
7:03PM0.92m
7:12AM0.91m
7:48PM0.74m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:54
6:54
6:54
6:56
6:56
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:29
8:28
8:25
8:24
8:22
8:22
8:21
 mm
Temp °C
24
24
21
23
23
21
22
22
19
20
20
19
20
20
19
20
20
19
20
20
19
Feels °C
23
23
23
23
23
22
22
20
14
16
16
15
16
14
13
14
14
13
15
16
17
  • Map Icons:
  • Break
  • 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 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.

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