Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
19.3° C
0.7° 

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 (20 Aug):

  • Evening surf: Evening surf (20 Aug, local time) - 3ft (0.9m), 7s period with ENE swell.

The current surf forecast for Siriu at 11PM is: 0.9m 7s primary swell from a East-northeast direction and 0.1m 6s secondary swell from a Southeast direction (forecast issued at 08:00pm August 20). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (-03) & DateWave HeightWave Period
Morning (20 Aug)--
Afternoon (20 Aug)--
Evening (20 Aug)3ft (0.9m)7s

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 21°C on Thu night, min 10°C on Sat night). Wind will be generally light.

Thu
20
Friday
21
Saturday
22
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
1
1
1
0
0
2
!
!
!
3
4
3
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
ENE
7
0.9
ENE
7
0.9
ENE
7
0.8
ENE
7
0.8
S
7
1.1
S
7
0.9
S
7
1.4
S
9
2.1
S
9
3
S
10
3
S
10
3
S
9
2.5
S
10
2.4
S
10
2.3
S
9
2.2
S
9
1.7
S
10
1.6
S
10
Wave Graph
Metric surfscale
Energy kJ
114
84
84
59
67
130
88
284
718
1782
1655
1386
1146
1035
904
845
529
490
Wind (km/h)
15
NNE
10
N
15
S
5
S
10
SW
10
SW
15
S
25
S
25
SSW
20
SSW
20
SSW
15
SSW
15
SW
15
SSW
15
S
15
S
10
S
5
SSW
Wind State
cross
cross
cross
glassy
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
glassy
High Tide
4:54PM0.51m
11:59PM0.31m
12:33PM0.57m
11:21PM0.37m
12:43PM0.63m
Low Tide
10:27PM0.31m
2:29AM0.30m
10:38PM0.37m
4:12AM0.25m
6:30PM0.40m
part cloud
part cloud
clear
part cloud
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:54
5:54
 mm
1
Temp °C
21
21
18
17
17
18
19
18
14
14
13
12
12
13
14
13
12
11
Feels °C
21
21
17
17
16
16
16
12
9
9
8
8
8
9
10
9
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 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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