Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 pm 11 Sep 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
16.6°C
2.3° 

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


How big are the waves at Siriu today (11 Sep):

  • Afternoon surf: Afternoon surf (11 Sep, local time) - 3.5ft (1.0m), 8s period with ENE swell.
  • Evening surf: Evening surf (11 Sep, local time) - 3ft (0.9m), 8s period with ENE swell.

The current surf forecast for Siriu at 8PM is: 0.9m 8s primary swell from a East-northeast direction and 0.5m 11s secondary swell from a South direction (forecast issued at 02:00pm September 11). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (11 Sep)--
Afternoon (11 Sep)3.5ft (1.0m)8s
Evening (11 Sep)3ft (0.9m)8s

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


Short Range Forecast

Heavy rain (total 41mm), heaviest during Fri afternoon. Warm (max 20°C on Fri afternoon, min 14°C on Sat night). Wind will be generally light.

Fri
11
Saturday
12
Sunday
13
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)
1
1
1
1
1
0
0
1
1
1
1
2
2
1
2
1
2
2
2
2
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)
0.9
ENE
8
1
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.8
ENE
8
1.2
S
6
1.5
S
8
1.6
S
8
1.6
S
8
2
S
7
1.7
S
7
1.3
SSE
7
1.3
SSE
8
1.1
SE
8
1.1
SE
8
1.1
SE
8
1.3
SSE
8
1.2
SE
8
Wave Graph
Metric surfscale
Energy kJ
99
110
83
107
87
87
67
109
248
307
291
431
311
186
176
133
140
138
178
173
Wind (km/h)
10
N
5
N
0
WNW
10
W
15
SW
25
SSW
20
SW
20
SSW
20
SSW
25
SSW
20
SSW
20
SW
15
SW
15
SW
15
SW
15
SW
15
SW
15
SSW
10
SSW
10
SSW
Wind State
cross
glassy
glassy
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
2:12PM0.69m
1:42AM0.80m
2:21PM0.67m
2:14AM0.81m
2:36PM0.66m
Low Tide
8:30PM0.27m
8:55AM0.05m
8:43PM0.24m
9:19AM0.14m
8:48PM0.21m
light rain
light rain
heavy rain
cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:05
6:05
6:06
 mm
3
4
16
2
4
Temp °C
20
20
18
19
19
17
16
17
17
17
16
15
15
14
14
15
15
16
15
14
Feels °C
21
22
20
20
18
14
13
13
13
12
12
12
12
11
11
12
12
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 Siriu 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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