Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 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 (12 Oct):

  • Morning surf: Morning surf (12 Oct, local time) - 3.5ft (1.0m), 8s period with S swell.
  • Afternoon surf: Afternoon surf (12 Oct, local time) - 3ft (0.9m), 8s period with S swell.
  • Evening surf: Evening surf (12 Oct, local time) - 2.5ft (0.7m), 8s period with S swell.

The current surf forecast for Siriu at 1PM is: 0.9m 8s primary swell from a South direction and 0.6m 7s secondary swell from a East direction (forecast issued at 08:00am October 12). The wind direction is predicted to be glassy.

Time (-03) & DateWave HeightWave Period
Morning (12 Oct)3.5ft (1.0m)8s
Afternoon (12 Oct)3ft (0.9m)8s
Evening (12 Oct)2.5ft (0.7m)8s

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


Short Range Forecast

Heavy rain (total 27mm), heaviest during Mon night. Warm (max 22°C on Wed morning, min 16°C on Mon morning). Wind will be generally light.

Monday
12
Tuesday
13
Wednesday
14
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)
1
0
1
1
1
0
1
1
1
2
1
2
1
2
2
2
1
1
0
0
0
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
S
8
1
S
8
1
S
8
0.9
S
8
0.8
S
8
0.7
S
8
0.5
S
10
0.9
S
10
0.9
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
133
133
133
103
78
57
50
158
158
190
192
188
201
197
185
146
143
140
131
125
119
119
Wind (km/h)
5
SSW
5
S
5
ESE
5
E
5
NE
10
NNE
5
N
10
N
10
N
0
N
10
SE
5
S
10
SSW
10
SSW
10
SSW
5
SW
5
SW
10
SSW
10
SSE
10
SSE
10
S
10
SW
Wind State
glassy
cross
glassy
glassy
glassy
cross
glassy
cross
cross
glassy
cross-on
glassy
cross
cross-off
cross-off
glassy
glassy
cross-off
cross-on
cross-on
cross
cross-off
High Tide
1:57PM0.66m
2:36AM0.76m
2:18PM0.65m
3:11AM0.71m
2:40PM0.63m
Low Tide
8:49AM0.23m
8:18PM0.11m
9:07AM0.31m
8:28PM0.11m
9:03AM0.38m
8:41PM0.12m
part cloud
cloud
cloud
light rain
cloud
light rain
heavy rain
mod rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
—
—
—
—
—
—
5:39
—
—
—
—
—
—
—
5:39
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:20
—
—
—
—
—
—
—
6:21
—
—
—
—
—
—
—
6:21
—
 mm
—
—
—
1
—
5
13
8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
15
16
16
16
17
16
16
17
17
19
21
20
19
18
18
18
18
20
22
21
20
19
Feels °C
15
16
16
16
17
16
17
16
17
21
22
21
19
18
18
19
19
21
23
23
21
20
  • 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 

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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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