Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 pm 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.8° 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 (13 Aug):

  • Afternoon surf: Afternoon surf (13 Aug, local time) - 6ft (1.8m), 14s period with SSE swell.
  • Evening surf: Evening surf (13 Aug, local time) - 6.5ft (2.0m), 13s period with SSE swell.

The current surf forecast for Siriu at 7PM is: 1.9m 13s primary swell from a South-southeast direction and 0.4m 5s secondary swell from a Northeast direction (forecast issued at 02:00pm August 13). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (-03) & DateWave HeightWave Period
Morning (13 Aug)--
Afternoon (13 Aug)6ft (1.8m)14s
Evening (13 Aug)6.5ft (2.0m)13s

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


Short Range Forecast

Heavy rain (total 72mm), heaviest during Thu afternoon. Very mild (max 19°C on Sat morning, min 17°C on Thu afternoon). Wind will be generally light.

Thu
13
Friday
14
Saturday
15
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
4
4
4
2
2
3
3
3
3
3
2
2
3
1
1
1
3
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)
1.9
SSE
14
1.8
SSE
14
1.9
SSE
13
2
SSE
13
1.5
SSE
13
1.3
SSE
12
1.4
SSE
13
1.7
SSE
13
1.8
SSE
13
2.2
SSE
13
1.9
SSE
13
1.8
SSE
13
1.6
SSE
12
1.5
SSE
12
1.4
SSE
12
2.2
E
8
1.8
E
8
2.2
ENE
8
1.9
E
8
1.8
E
8
Wave Graph
Metric surfscale
Energy kJ
1344
1161
1192
1259
660
490
594
968
1120
1708
1255
1044
742
634
568
534
371
528
424
381
Wind (km/h)
10
S
10
SSW
15
SW
10
SSW
10
SE
10
SSE
5
SE
10
E
5
ENE
10
ENE
10
ENE
15
ENE
15
E
10
E
20
ENE
15
NE
15
NE
15
NNE
15
NNE
20
NNE
Wind State
cross
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross
cross
cross
High Tide
3:05PM0.70m
1:55AM0.76m
3:10PM0.66m
2:28AM0.79m
3:22PM0.63m
Low Tide
9:18PM0.37m
9:28AM-0.01m
9:33PM0.36m
9:58AM0.07m
part cloud
rain showers
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
mod rain
mod rain
light rain
light rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:51
5:52
 mm
7
5
1
4
4
2
2
3
3
5
7
5
6
7
3
1
2
2
Temp °C
18
17
17
17
17
17
17
17
17
17
17
17
17
17
18
18
19
18
18
18
Feels °C
18
17
16
18
17
17
18
17
17
17
17
16
16
17
16
17
19
17
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.


Nearest locationNearest