La Posta Surf Break

Lat Long: 34.92° S 54.85° W

La Posta 48 hour detailed Surf Forecast

Issued: 8 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's La Posta sea temperature is
12.5°C
1.1° 

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 (15 Sep):

  • Morning surf: Morning surf (15 Sep, local time) - 1.5ft (0.4m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (15 Sep, local time) - 3.5ft (1.1m), 5s period with SW swell.
  • Evening surf: Evening surf (15 Sep, local time) - 4.5ft (1.3m), 6s period with SSW swell.

The current surf forecast for La Posta at 1PM is: 1.0m 5s primary swell from a West-southwest direction and 0.3m 8s secondary swell from a East-southeast direction (forecast issued at 08:00am September 15). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (15 Sep)1.5ft (0.4m)9s
Afternoon (15 Sep)3.5ft (1.1m)5s
Evening (15 Sep)4.5ft (1.3m)6s

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


Short Range Forecast

Mostly dry. Very mild (max 17°C on Thu afternoon, min 7°C on Tue night). Winds decreasing (fresh winds from the WSW on Tue morning, light winds from the SE by Wed morning).

Tuesday
15
Wednesday
16
Thursday
17
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
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
1
0
0
1
1
1
1
1
1
1
1
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)
0.4
S
9
0.4
S
9
1
WSW
5
1.1
SW
5
1
SSW
5
1.3
SSW
6
1.2
SSW
6
1.3
S
6
1.3
S
7
1.1
S
7
1.3
S
9
1.2
S
9
1.2
SSE
9
1.1
SSE
9
1.1
SSE
9
1
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.8
SSE
9
0.6
SSE
9
Wave Graph
Metric surfscale
Energy kJ
25
25
47
68
54
95
112
132
144
124
282
246
259
220
225
185
149
146
119
119
94
64
Wind (km/h)
25
WNW
30
WNW
35
WSW
30
SSW
30
SSW
25
S
20
S
20
S
15
SSE
10
SSE
10
SE
10
ESE
20
E
25
NE
20
NNE
15
NNE
15
NNE
15
N
10
NNE
10
ENE
15
ENE
15
NNE
Wind State
cross-off
cross-off
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
off
High Tide
4:28AM0.19m
10:52AM0.29m
00:14AM0.19m
5:29AM0.19m
11:37AM0.28m
1:10AM0.18m
12:21PM0.27m
Low Tide
6:31AM0.18m
7:21PM0.04m
2:41AM0.17m
6:57AM0.18m
8:07PM0.06m
3:19AM0.17m
8:50PM0.07m
clear
part cloud
clear
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:37
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
6:30
6:30
 mm
Temp °C
9
10
13
10
10
8
8
8
7
7
8
9
8
8
8
8
8
9
14
17
17
16
Feels °C
3
3
6
4
3
1
2
2
2
3
5
5
2
2
3
4
4
5
11
14
14
13
  • 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.


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