Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 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 (27 Sep):

  • Morning surf: Morning surf (27 Sep, local time) - 2ft (0.6m), 7s period with ENE swell.
  • Afternoon surf: Afternoon surf (27 Sep, local time) - 1.5ft (0.4m), 11s period with SSE swell.
  • Evening surf: Evening surf (27 Sep, local time) - 2.5ft (0.7m), 10s period with S swell.

The current surf forecast for Siriu at 3PM is: 0.4m 11s primary swell from a South-southeast direction and 0.4m 6s secondary swell from a East-northeast direction, 0.4m 5s secondary swell from a South-southeast direction (forecast issued at 08:00am September 27). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (27 Sep)2ft (0.6m)7s
Afternoon (27 Sep)1.5ft (0.4m)11s
Evening (27 Sep)2.5ft (0.7m)10s

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


Short Range Forecast

Heavy rain (total 39mm), heaviest during Mon morning. Warm (max 21°C on Tue night, min 18°C on Mon night). Wind will be generally light.

Sunday
27
Monday
28
Tuesday
29
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
1
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
0
2
1
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)
0.7
ENE
7
0.6
ENE
7
0.4
ENE
7
0.4
SSE
11
0.6
S
11
0.7
S
10
0.9
SSE
10
0.8
S
10
0.7
S
10
1.1
E
6
0.9
E
6
1
E
6
1
E
6
1
E
6
1.1
ENE
6
1.5
NE
6
1.3
ENE
6
1.4
ENE
7
1.4
ENE
7
1.4
ENE
7
1.5
ENE
7
1.5
ENE
7
Wave Graph
Metric surfscale
Energy kJ
48
36
18
40
82
108
163
118
87
74
60
71
76
79
104
172
140
180
176
178
215
237
Wind (km/h)
5
SSW
5
S
5
ESE
10
ENE
10
NE
5
ENE
10
NNE
10
NNE
10
NNE
10
NNE
15
NNE
10
N
15
N
15
N
20
N
20
NNE
20
NNE
15
NNE
5
N
15
N
20
N
20
N
Wind State
glassy
glassy
on
cross-on
cross-on
glassy
cross-on
cross
cross-on
cross
cross
cross-off
cross
cross
cross
cross-on
cross
cross
glassy
cross
cross
cross-off
High Tide
2:17PM0.71m
2:19AM0.82m
2:36PM0.66m
2:55AM0.79m
2:56PM0.61m
Low Tide
8:44AM0.04m
8:44PM0.17m
9:25AM0.12m
9:10PM0.18m
10:12AM0.24m
cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
light rain
mod rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
light rain
light rain
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
—
—
—
—
—
—
5:56
—
—
—
—
—
—
—
5:56
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:12
—
—
—
—
—
—
—
6:13
—
—
—
—
—
—
—
6:13
—
 mm
—
—
—
—
—
—
2
1
2
1
10
5
5
1
—
—
—
1
2
5
1
1
Temp °C
18
20
20
20
20
20
19
19
19
20
19
19
19
19
19
18
18
19
20
20
20
20
Feels °C
19
22
22
21
22
22
19
20
19
20
18
20
19
18
17
15
16
18
22
20
20
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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