Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 2 pm 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.6°C
1.1° 

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 (30 Sep):

  • Afternoon surf: Afternoon surf (30 Sep, local time) - 4.5ft (1.3m), 8s period with E swell.
  • Evening surf: Evening surf (30 Sep, local time) - 4ft (1.2m), 8s period with E swell.

The current surf forecast for Siriu at 5PM is: 1.2m 8s primary swell from a East direction and 0.3m 12s secondary swell from a Southeast direction, 0.8m 6s secondary swell from a South direction (forecast issued at 02:00pm September 30). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (-03) & DateWave HeightWave Period
Morning (30 Sep)--
Afternoon (30 Sep)4.5ft (1.3m)8s
Evening (30 Sep)4ft (1.2m)8s

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


Short Range Forecast

Heavy rain (total 36mm), heaviest during Wed night. Warm (max 20°C on Sat morning, min 14°C on Thu afternoon). Wind will be generally light.

Wed
30
Thursday
1
Friday
2
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
2
1
1
2
2
2
2
2
1
2
2
2
3
3
2
1
3
2
3
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)
1.4
E
8
1.3
E
8
1.2
E
8
1.2
E
8
1.1
E
8
1.1
E
8
1.3
S
8
1.1
S
9
1.1
S
9
1
S
10
1
S
10
1.1
S
10
0.8
S
9
1.6
S
9
1.6
S
9
1.6
S
9
1.7
S
9
1.9
S
9
1.7
S
10
1.6
S
10
Wave Graph
Metric surfscale
Energy kJ
264
228
200
200
169
169
234
175
210
196
192
228
111
422
395
386
450
614
561
541
Wind (km/h)
15
S
15
SSW
15
SSW
20
SSW
5
SSW
5
SE
15
S
10
SSW
5
S
15
S
15
SSW
15
SSW
15
SW
10
SSW
15
SSW
15
SSW
15
S
15
S
5
SSE
5
SE
Wind State
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-off
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
glassy
High Tide
3:15PM0.56m
4:20AM0.65m
9:38AM0.52m
3:31PM0.52m
5:19AM0.56m
10:51AM0.62m
Low Tide
11:15AM0.36m
8:37PM0.20m
8:08AM0.51m
12:48PM0.46m
8:28PM0.20m
7:31AM0.52m
8:40PM0.23m
light rain
light rain
light rain
light rain
heavy rain
light rain
mod rain
cloud
cloud
cloud
light rain
cloud
part cloud
part cloud
cloud
part cloud
clear
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
5:54
—
—
—
—
—
—
—
5:52
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:14
—
—
—
—
—
—
—
6:14
—
—
—
—
—
—
—
6:15
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 mm
2
3
2
4
16
4
6
—
—
—
1
—
—
—
—
—
—
—
—
—
Temp °C
18
16
16
15
15
15
15
15
16
15
14
15
14
14
14
16
17
15
14
14
Feels °C
17
14
14
12
15
15
13
14
16
13
11
12
12
12
11
13
13
12
12
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 

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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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