Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 pm 27 Sep 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
17.5°C
2.1° 

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 (28 Sep):

  • Morning surf: Morning surf (28 Sep, local time) - 2.5ft (0.7m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (28 Sep, local time) - 3ft (0.9m), 6s period with E swell.
  • Evening surf: Evening surf (28 Sep, local time) - 3.5ft (1.0m), 6s period with E swell.

The current surf forecast for Siriu at 4AM is: 0.8m 10s primary swell from a South direction and 0.7m 5s secondary swell from a East direction (forecast issued at 08:00pm September 27). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (28 Sep)2.5ft (0.7m)9s
Afternoon (28 Sep)3ft (0.9m)6s
Evening (28 Sep)3.5ft (1.0m)6s

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


Short Range Forecast

Heavy rain (total 34mm), heaviest during Mon night. Warm (max 21°C on Mon morning, min 15°C on Wed afternoon). Wind will be generally light.

Sun
27
Monday
28
Tuesday
29
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
0
0
0
0
0
0
0
0
0
0
0
0
2
3
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
11
0.7
S
10
0.9
S
10
0.8
S
10
0.7
S
10
0.7
S
9
1
E
6
0.9
E
6
0.9
E
6
1
E
6
1
E
6
1.2
ENE
6
1.1
E
6
1.4
ENE
7
1.5
ENE
7
1.7
ENE
7
1.7
ENE
7
1.6
ENE
7
Wave Graph
Metric surfscale
Energy kJ
82
106
158
118
87
83
64
58
59
78
81
107
95
163
198
289
310
259
Wind (km/h)
10
ENE
10
ENE
10
NE
10
NE
10
NNE
15
NNE
15
NNE
10
NE
10
NNE
15
N
20
N
25
N
25
NNE
15
NNE
10
NNW
5
NNW
20
N
20
N
Wind State
on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
cross
cross
cross
cross
cross-on
cross-off
cross-off
cross
cross
High Tide
2:19AM0.82m
2:36PM0.66m
2:55AM0.79m
2:56PM0.61m
Low Tide
8:44PM0.17m
9:25AM0.12m
9:10PM0.18m
10:12AM0.24m
cloud
light rain
rain showers
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
part cloud
clear
clear
light rain
light rain
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
5:56
—
—
—
—
—
—
—
5:56
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
—
—
—
—
—
—
—
6:13
—
—
—
—
—
—
—
6:13
—
 mm
—
1
1
1
2
2
2
2
2
4
—
—
—
1
2
2
4
1
Temp °C
19
19
19
19
19
19
21
20
19
19
19
19
19
20
21
20
20
20
Feels °C
19
20
19
20
20
18
22
21
20
19
18
17
17
20
23
22
19
18
  • 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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