Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 am 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
19.2°C
1.6° 

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 (17 Oct):

  • Morning surf: Morning surf (17 Oct, local time) - 4.5ft (1.3m), 8s period with S swell.
  • Afternoon surf: Afternoon surf (17 Oct, local time) - 5ft (1.5m), 8s period with S swell.
  • Evening surf: Evening surf (17 Oct, local time) - 6ft (1.9m), 9s period with S swell.

The current surf forecast for Siriu at 7AM is: 1.7m 8s primary swell from a South direction and 1.3m 8s secondary swell from a South direction, 1.0m 8s secondary swell from a East-southeast direction (forecast issued at 02:00am October 17). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (-03) & DateWave HeightWave Period
Morning (17 Oct)4.5ft (1.3m)8s
Afternoon (17 Oct)5ft (1.5m)8s
Evening (17 Oct)6ft (1.9m)9s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sat morning, min 12°C on Sun night). Wind will be generally light.

Saturday
17
Sunday
18
Monday
19
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)
3
3
3
2
0
1
1
3
4
3
3
4
!
!
!
!
!
!
4
3
0
1
2
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)
1.8
S
7
1.8
S
8
1.7
S
8
1.3
S
8
1.1
ESE
9
1.5
S
8
1.4
S
8
1.9
S
9
2.1
S
10
1.9
S
10
1.8
S
10
2.1
S
12
3
S
12
3
S
11
3
S
11
3
S
10
3
S
10
3
S
10
2.2
SSE
10
2
SSE
10
1.9
SSE
10
1.8
SSE
10
1.8
SSE
10
1.7
SSE
10
Wave Graph
Metric surfscale
Energy kJ
348
367
329
186
197
280
271
588
867
710
663
1290
2115
1962
1855
1786
1969
1601
969
787
684
603
603
573
Wind (km/h)
15
SW
15
SSW
10
SSW
5
SSW
10
SE
15
SSE
10
S
10
W
10
SW
10
WSW
10
WSW
10
SSW
15
S
15
SSE
20
SSW
15
SW
15
SW
15
SW
10
SW
5
SW
15
SSE
15
SSE
15
S
15
SW
Wind State
cross-off
cross-off
cross-off
glassy
cross-on
cross
cross
off
cross-off
off
off
cross-off
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross-off
High Tide
5:27AM0.52m
11:17AM0.54m
4:06PM0.53m
10:26PM0.29m
11:22AM0.58m
5:14PM0.48m
11:34AM0.63m
Low Tide
8:02AM0.48m
1:59PM0.51m
10:07PM0.29m
1:28AM0.26m
3:35PM0.47m
3:01AM0.23m
4:27PM0.41m
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
5:35
—
—
—
—
—
—
—
5:35
—
—
—
—
—
—
—
5:33
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
6:22
—
—
—
—
—
—
—
6:23
—
—
—
—
—
—
—
6:23
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
17
17
16
18
20
19
18
16
15
14
13
17
19
18
16
15
14
13
12
16
18
18
16
15
Feels °C
15
16
15
18
18
16
16
15
13
12
10
14
14
14
12
11
10
10
9
14
14
14
13
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.


Nearest locationNearest