La Posta Surf Break

Lat Long: 34.92° S 54.85° W

La Posta 48 hour detailed Surf Forecast

Issued: 2 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's La Posta sea temperature is
13.3°C
2.0° 

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


How big are the waves at La Posta today (12 Sep):

  • Afternoon surf: Afternoon surf (12 Sep, local time) - 7ft (2.2m), 8s period with S swell.
  • Evening surf: Evening surf (12 Sep, local time) - 5.5ft (1.7m), 8s period with S swell.

The current surf forecast for La Posta at 10PM is: 1.7m 8s primary swell from a South direction and 0.5m 7s secondary swell from a East direction, 0.2m 14s secondary swell from a South-southeast direction (forecast issued at 02:00pm September 12). The wind direction is predicted to be onshore.

Time (-03) & DateWave HeightWave Period
Morning (12 Sep)--
Afternoon (12 Sep)7ft (2.2m)8s
Evening (12 Sep)5.5ft (1.7m)8s

Table - waves today at La Posta. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 13°C on Tue morning, min 8°C on Sat afternoon). Winds decreasing (fresh winds from the S on Sat afternoon, calm by Sun night).

Sat
12
Sunday
13
Monday
14
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
S
7
2.2
S
8
2.1
SSE
8
1.7
S
8
1.8
SSE
8
1.9
SSE
8
2
SSE
8
1.8
SSE
8
1.5
SSE
8
1.5
SSE
8
1.1
S
8
0.9
S
10
0.9
SSE
10
0.8
SSE
10
0.7
S
10
0.7
S
10
0.7
S
10
0.6
S
10
0.6
S
10
0.6
S
10
Wave Graph
Metric surfscale
Energy kJ
382
566
520
383
427
461
472
384
270
271
161
161
160
125
94
98
100
70
67
65
Wind (km/h)
35
S
35
S
30
S
25
S
25
SSE
30
SSE
25
SSE
25
SSE
20
SSE
20
SSE
15
SE
15
ESE
10
ESE
5
ESE
5
E
5
N
5
N
10
S
10
SSE
5
NE
Wind State
on
on
on
on
on
on
on
on
on
on
cross-on
cross-on
cross
cross-on
glassy
off
off
on
cross-on
cross-off
High Tide
9:55PM0.23m
2:25AM0.20m
9:23AM0.30m
10:41PM0.21m
3:28AM0.20m
10:08AM0.30m
Low Tide
4:56PM0.02m
00:49AM0.20m
5:17AM0.17m
5:46PM0.02m
1:22AM0.19m
5:56AM0.18m
6:35PM0.03m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:28
6:28
6:29
 mm
Temp °C
10
9
8
9
9
8
9
9
9
9
9
9
9
9
9
9
11
12
11
11
Feels °C
2
1
1
2
3
1
3
3
4
4
4
5
6
7
7
7
9
10
9
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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 La Posta 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.


Nearest locationNearest