Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 pm 12 Oct 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.7°C
1.8° 

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 Oct):

  • Morning surf: Morning surf (13 Oct, local time) - 3.5ft (1.0m), 10s period with S swell.
  • Afternoon surf: Afternoon surf (13 Oct, local time) - 3.5ft (1.0m), 10s period with S swell.
  • Evening surf: Evening surf (13 Oct, local time) - 3.5ft (1.0m), 10s period with SSE swell.

The current surf forecast for Siriu at 3AM is: 0.9m 10s primary swell from a South direction and 0.5m 8s secondary swell from a East-southeast direction (forecast issued at 08:00pm October 12). The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (13 Oct)3.5ft (1.0m)10s
Afternoon (13 Oct)3.5ft (1.0m)10s
Evening (13 Oct)3.5ft (1.0m)10s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Mon night. Warm (max 21°C on Wed morning, min 16°C on Mon night). Wind will be generally light.

Mon
12
Tuesday
13
Wednesday
14
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
1
1
2
2
1
2
1
2
2
1
1
1
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
8
0.7
S
8
0.6
S
10
0.9
S
10
1
S
10
1
S
10
1
S
10
1
S
10
1
SSE
10
1
SSE
10
1
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
9
0.9
SSE
8
0.9
SSE
8
0.9
SSE
8
Wave Graph
Metric surfscale
Energy kJ
78
57
71
158
194
190
192
188
197
197
185
146
143
140
106
101
99
96
Wind (km/h)
5
ENE
10
NE
5
N
10
NNE
5
SW
5
SSW
10
ESE
5
SE
5
S
5
SSW
5
SW
5
SSW
10
SSW
5
S
5
SSE
10
S
10
S
10
SSW
Wind State
on
cross-on
glassy
cross
cross-off
cross-off
on
glassy
cross
cross-off
cross-off
glassy
cross-off
glassy
cross-on
cross
cross
cross-off
High Tide
2:36AM0.76m
2:18PM0.65m
3:11AM0.71m
2:40PM0.63m
Low Tide
8:18PM0.11m
9:07AM0.31m
8:28PM0.11m
9:03AM0.38m
8:41PM0.12m
cloud
cloud
light rain
heavy rain
part cloud
part cloud
part cloud
cloud
light rain
cloud
cloud
cloud
clear
part cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
5:39
—
—
—
—
—
—
—
5:39
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
—
—
—
—
—
—
—
6:21
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—
—
—
—
—
—
6:21
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 mm
—
—
4
19
—
—
—
—
1
—
—
—
—
—
—
—
—
—
Temp °C
17
17
17
17
16
18
20
19
19
19
19
19
18
20
21
21
20
19
Feels °C
17
17
18
17
16
19
21
20
20
20
20
21
19
21
23
22
21
19
  • 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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