Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
19.1°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 (31 Aug):

  • Afternoon surf: Afternoon surf (31 Aug, local time) - 3.5ft (1.0m), 8s period with ENE swell.
  • Evening surf: Evening surf (31 Aug, local time) - 3ft (0.9m), 9s period with ENE swell.

The current surf forecast for Siriu at 6PM is: 1.0m 8s primary swell from a East-southeast direction and 0.9m 8s secondary swell from a East-northeast direction (forecast issued at 02:00pm August 31). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (31 Aug)--
Afternoon (31 Aug)3.5ft (1.0m)8s
Evening (31 Aug)3ft (0.9m)9s

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


Short Range Forecast

Heavy rain (total 22mm), heaviest during Mon afternoon. Warm (max 22°C on Thu morning, min 13°C on Wed night). Mainly fresh winds.

Mon
31
Tuesday
1
Wednesday
2
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
0
1
0
2
2
2
0
1
2
3
4
2
3
3
1
2
3
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)
1.6
E
8
1
ENE
8
1
ESE
8
0.9
ENE
9
1.1
ESE
8
1.1
E
8
1.3
ESE
8
1.4
ESE
8
1.6
ESE
8
1.6
SE
8
2
SE
8
2.4
SE
8
2.3
SE
8
1.9
SE
8
1.8
SE
9
1.6
SE
9
1.6
SE
9
1.6
SE
9
1.6
SE
10
1.6
SE
10
Wave Graph
Metric surfscale
Energy kJ
341
131
140
137
153
161
202
257
307
338
446
682
701
497
460
408
388
414
486
459
Wind (km/h)
10
NNE
10
NNE
10
NE
10
NE
20
NNE
5
WNW
10
SW
15
SW
30
S
20
SSW
20
SSW
15
SW
15
SW
10
WSW
10
SW
10
SW
10
SSE
10
SE
5
NE
10
NNE
Wind State
cross
cross
cross-on
cross-on
cross-on
glassy
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
glassy
cross
High Tide
3:37PM0.65m
3:45AM0.75m
4:01PM0.59m
4:28AM0.68m
4:25PM0.53m
Low Tide
10:20AM0.13m
10:09PM0.25m
11:11AM0.24m
10:22PM0.27m
12:29PM0.35m
heavy rain
mod rain
light rain
light rain
light rain
cloud
part cloud
cloud
light rain
thunderstorm
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
 mm
12
8
1
4
5
2
2
Temp °C
19
19
19
18
18
18
18
19
17
17
17
16
16
15
14
16
18
18
16
15
Feels °C
20
20
19
18
16
20
18
18
13
15
14
13
14
14
12
15
16
17
16
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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