Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
18.7°C
0.2° 

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 (04 Sep):

  • Morning surf: Morning surf (04 Sep, local time) - 2.5ft (0.7m), 10s period with SE swell.
  • Afternoon surf: Afternoon surf (04 Sep, local time) - 2ft (0.6m), 10s period with SE swell.
  • Evening surf: Evening surf (04 Sep, local time) - 3ft (0.9m), 8s period with ENE swell.

The current surf forecast for Siriu at 4PM is: 0.6m 10s primary swell from a Southeast direction and 0.7m 8s secondary swell from a East-northeast direction, 0.8m 5s secondary swell from a South direction (forecast issued at 08:00am September 04). The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (04 Sep)2.5ft (0.7m)10s
Afternoon (04 Sep)2ft (0.6m)10s
Evening (04 Sep)3ft (0.9m)8s

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


Short Range Forecast

Heavy rain (total 20mm), heaviest during Fri night. Very mild (max 17°C on Fri morning, min 8°C on Sun night). Winds increasing (light winds from the S on Fri night, fresh winds from the SSW by Sun afternoon).

Friday
4
Saturday
5
Sunday
6
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)
0
0
0
0
0
2
1
2
1
1
2
2
1
1
3
3
3
2
1
2
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)
0.8
SE
11
0.7
SE
10
0.7
SE
10
0.6
SE
10
0.8
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
ENE
8
0.9
S
10
0.9
S
9
1
S
9
1.1
S
9
1.2
S
9
1.3
S
8
1.7
S
7
1.8
S
8
2.1
S
8
2.1
S
8
2.5
S
9
2.5
S
10
2.4
S
10
Wave Graph
Metric surfscale
Energy kJ
137
108
102
64
71
94
96
125
125
146
134
159
184
209
230
306
381
558
616
1098
1194
1035
Wind (km/h)
20
SSW
20
SSW
20
SSW
15
S
15
S
5
S
5
SSW
10
S
10
S
10
S
10
SSW
10
SW
20
SSW
15
SW
15
SW
15
SW
15
SW
20
SW
25
SSW
30
SSW
25
SSW
20
SSW
Wind State
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
11:44AM0.63m
00:04AM0.36m
12:25PM0.73m
00:19AM0.41m
1:01PM0.79m
Low Tide
9:10PM0.30m
3:36AM0.25m
9:01PM0.34m
4:52AM0.16m
6:52PM0.34m
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:24
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:01
6:02
 mm
1
4
2
4
3
4
2
Temp °C
16
17
16
16
15
15
14
13
13
13
14
13
14
14
14
12
11
12
13
13
12
12
Feels °C
14
14
13
13
12
14
13
12
12
12
13
11
10
10
10
8
8
7
6
5
5
6
  • 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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