Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 am 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.9° C
0.3° 

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 (19 Aug):

  • Morning surf: Morning surf (19 Aug, local time) - 3.5ft (1.1m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (19 Aug, local time) - 3ft (0.9m), 8s period with ENE swell.
  • Evening surf: Evening surf (19 Aug, local time) - 3ft (0.9m), 8s period with ENE swell.

The current surf forecast for Siriu at 8AM is: 1.1m 8s primary swell from a East-northeast direction and 0.1m 9s secondary swell from a South direction (forecast issued at 02:00am August 19). The wind direction is predicted to be cross-offshore.

Time (-03) & DateWave HeightWave Period
Morning (19 Aug)3.5ft (1.1m)8s
Afternoon (19 Aug)3ft (0.9m)8s
Evening (19 Aug)3ft (0.9m)8s

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


Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Warm (max 24°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
2
0
1
1
0
0
1
1
1
1
0
1
0
0
0
0
1
0
1
1
1
0
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
ENE
9
1.2
ENE
8
1.1
ENE
8
1.1
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.8
ENE
8
0.9
ENE
8
0.9
ENE
8
1
ENE
8
0.8
ENE
8
1
ENE
7
0.5
S
9
0.7
ENE
7
0.9
ENE
7
0.8
ENE
7
0.7
ENE
7
0.9
S
7
0.8
S
7
1.3
S
8
1.7
S
8
2.5
S
9
Wave Graph
Metric surfscale
Energy kJ
245
190
153
149
113
107
85
83
77
96
96
110
78
104
43
55
74
69
51
71
66
217
400
1210
Wind (km/h)
0
NNW
5
S
10
SSW
10
SSW
20
S
15
S
10
SSW
10
SSW
5
ESE
5
ENE
10
NNE
15
NNE
20
NNE
20
NNE
15
NNE
15
N
10
SSW
10
S
5
W
5
WSW
15
SSW
20
S
20
SSW
20
SSW
Wind State
glassy
cross
cross-off
cross-off
cross
cross
cross-off
cross-off
glassy
glassy
cross-on
cross
cross-on
cross-on
cross
cross
cross-off
cross
glassy
off
cross-off
cross
cross-off
cross-off
High Tide
5:03AM0.59m
4:39PM0.55m
6:01AM0.51m
12:32PM0.51m
4:54PM0.51m
11:59PM0.31m
12:33PM0.57m
Low Tide
9:21AM0.40m
10:01PM0.27m
9:02AM0.45m
2:44PM0.49m
10:27PM0.31m
2:29AM0.30m
part cloud
clear
clear
clear
clear
part cloud
rain showers
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
5:54
 mm
1
Temp °C
22
20
19
22
23
21
19
19
19
19
18
19
23
24
22
21
20
17
17
19
20
19
16
14
Feels °C
24
21
19
23
22
21
20
20
22
21
19
19
21
22
22
21
20
17
18
18
16
14
12
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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