Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
17.2° C
1.6° 

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 (20 Jul):

  • Morning surf: Morning surf (20 Jul, local time) - 4.5ft (1.4m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (20 Jul, local time) - 5.5ft (1.7m), 8s period with NE swell.
  • Evening surf: Evening surf (20 Jul, local time) - 4.5ft (1.3m), 8s period with ENE swell.

The current surf forecast for Siriu at 2PM is: 1.7m 8s primary swell from a Northeast direction and 1.3m 8s secondary swell from a East-northeast direction, 0.2m 11s secondary swell from a South direction (forecast issued at 08:00am July 20). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (20 Jul)4.5ft (1.4m)8s
Afternoon (20 Jul)5.5ft (1.7m)8s
Evening (20 Jul)4.5ft (1.3m)8s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Wed afternoon. Warm (max 26°C on Mon afternoon, min 16°C on Wed night). Wind will be generally light.

Monday
20
Tuesday
21
Wednesday
22
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)
2
2
1
1
3
1
2
1
2
2
3
2
2
2
1
2
2
2
1
1
2
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)
1.4
ENE
8
1.4
ENE
8
1.7
NE
8
1.7
NE
8
1.7
ENE
8
1.3
ENE
8
1.6
NE
8
1.3
ENE
8
1.7
NE
8
1.6
NE
8
1.6
NE
8
1.7
NE
8
1.3
ENE
8
1.6
NE
8
1.2
ENE
8
1.2
ENE
8
1.2
ENE
8
1.2
ENE
8
1.2
ENE
8
1.5
ENE
8
1.3
ENE
8
1.3
ENE
8
Wave Graph
Metric surfscale
Energy kJ
270
250
381
390
365
243
381
234
392
346
333
364
226
341
188
192
181
176
176
307
216
227
Wind (km/h)
0
S
5
N
10
NE
10
NE
5
NNW
10
N
15
N
15
N
15
N
10
N
5
E
10
S
5
SSW
5
N
10
NNE
5
W
5
SW
15
SSW
5
SE
15
N
10
N
15
SSW
Wind State
glassy
glassy
cross-on
cross-on
glassy
cross
cross
cross
cross
cross
glassy
cross
cross-off
cross
cross
glassy
glassy
cross-off
cross-on
cross
cross-off
cross-off
High Tide
4:39AM0.66m
5:14PM0.53m
5:30AM0.59m
5:44PM0.52m
11:26PM0.35m
6:39AM0.52m
11:53AM0.46m
6:22PM0.49m
Low Tide
12:28PM0.29m
9:45PM0.35m
1:28PM0.37m
10:47PM0.35m
1:39AM0.34m
10:04AM0.46m
3:00PM0.43m
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:03
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:38
 mm
1
2
1
Temp °C
18
19
25
26
22
22
22
22
22
23
25
21
19
19
20
21
19
19
19
19
19
17
Feels °C
20
20
24
25
23
22
21
21
20
22
26
21
20
20
20
22
20
18
20
18
19
15
  • 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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