Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.6°C
0.2° 

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 (25 Aug):

  • Morning surf: Morning surf (25 Aug, local time) - 6ft (1.8m), 13s period with SSE swell.
  • Afternoon surf: Afternoon surf (25 Aug, local time) - 5.5ft (1.7m), 12s period with SSE swell.
  • Evening surf: Evening surf (25 Aug, local time) - 5ft (1.6m), 12s period with SSE swell.

The current surf forecast for Siriu at 11AM is: 1.8m 12s primary swell from a South-southeast direction and 0.1m 7s secondary swell from a Northeast direction (forecast issued at 08:00am August 25). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (25 Aug)6ft (1.8m)13s
Afternoon (25 Aug)5.5ft (1.7m)12s
Evening (25 Aug)5ft (1.6m)12s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Thu morning, min 13°C on Tue morning). Winds increasing (calm on Tue morning, fresh winds from the NNE by Thu afternoon).

Tuesday
25
Wednesday
26
Thursday
27
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)
3
3
1
0
2
2
3
4
3
3
1
0
1
2
2
2
2
2
0
0
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)
1.8
SSE
13
1.8
SSE
13
1.8
SSE
12
1.7
SSE
12
1.7
SSE
12
1.6
SSE
12
1.6
SSE
12
1.4
SE
16
2.1
SSE
15
2.1
SSE
15
2.2
SSE
14
2.1
SSE
14
2.1
SSE
15
2
SSE
15
2
SSE
14
1.9
SSE
14
1.7
SSE
14
1.5
SSE
14
1.5
SSE
13
1.4
SSE
13
1.3
SSE
13
1
SSE
12
Wave Graph
Metric surfscale
Energy kJ
1025
977
916
807
780
658
660
894
1846
1927
2082
1835
1911
1761
1604
1447
1210
845
756
649
520
325
Wind (km/h)
10
N
5
NNW
15
NNE
15
NE
15
NNE
15
N
10
N
10
N
10
N
15
NNE
20
NNE
25
NE
20
NNE
15
NNE
15
N
15
N
15
N
20
NNE
25
NNE
25
NNE
25
NNE
25
N
Wind State
cross
glassy
cross-on
cross-on
cross
cross
cross
cross-off
cross
cross
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
High Tide
1:34PM0.75m
00:41AM0.67m
1:53PM0.77m
1:06AM0.73m
2:12PM0.77m
Low Tide
6:46AM0.04m
7:25PM0.28m
7:21AM-0.01m
7:51PM0.26m
7:55AM-0.04m
8:17PM0.25m
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:57
5:58
 mm
Temp °C
11
13
16
18
16
14
14
14
14
18
21
21
18
17
17
17
17
20
24
23
20
19
Feels °C
9
12
13
15
13
12
13
13
12
16
18
17
16
16
15
15
15
18
21
20
17
16
  • 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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