Siriu Surf Break

Lat Long: 28.00° S 48.63° W

Siriu 48 hour detailed Surf Forecast

Issued: 8 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Siriu sea temperature is
19.1°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 (31 Aug):

  • Morning surf: Morning surf (31 Aug, local time) - 6ft (1.9m), 8s period with E swell.
  • Afternoon surf: Afternoon surf (31 Aug, local time) - 4.5ft (1.3m), 9s period with ENE swell.
  • Evening surf: Evening surf (31 Aug, local time) - 3ft (0.9m), 9s period with ENE swell.

The current surf forecast for Siriu at 12PM is: 1.6m 8s primary swell from a East direction (forecast issued at 08:00am August 31). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (31 Aug)6ft (1.9m)8s
Afternoon (31 Aug)4.5ft (1.3m)9s
Evening (31 Aug)3ft (0.9m)9s

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


Short Range Forecast

Heavy rain (total 56mm), heaviest during Mon morning. Very mild (max 19°C on Tue morning, min 13°C on Wed night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
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)
3
2
1
1
1
1
2
1
2
2
1
1
2
1
2
3
3
3
2
1
2
2
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)
1.6
E
8
1.9
E
8
1.6
E
8
1.3
ENE
9
1
ESE
8
0.9
ENE
9
1.3
ESE
8
1.4
ESE
8
1.5
ESE
8
1.7
ESE
8
1.7
ESE
8
1.9
SE
8
1.8
SE
8
1.8
SE
8
1.8
SE
8
1.8
SE
9
1.6
SE
9
1.5
SE
9
1.5
SE
9
1.5
SE
9
1.5
SE
9
1.5
SE
10
Wave Graph
Metric surfscale
Energy kJ
343
466
341
233
140
137
212
231
284
352
381
467
439
439
450
471
418
349
365
382
382
415
Wind (km/h)
5
SE
5
E
5
NE
10
NNE
10
NNE
5
NNE
0
NNW
10
NNE
5
WSW
10
WSW
20
SSW
20
SSW
20
SSW
20
SW
15
SW
15
SW
10
WSW
10
SW
10
S
10
SE
5
ENE
10
N
Wind State
glassy
on
cross-on
cross
cross
cross
glassy
cross-on
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
High Tide
3:07AM0.80m
3:37PM0.65m
3:45AM0.75m
4:01PM0.59m
4:28AM0.68m
4:25PM0.53m
Low Tide
10:20AM0.13m
10:09PM0.25m
11:11AM0.24m
10:22PM0.27m
12:29PM0.35m
light rain
light rain
heavy rain
heavy rain
light rain
light rain
mod rain
light rain
cloud
cloud
thunderstorm
light rain
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
 mm
2
2
17
11
5
5
8
2
1
3
1
1
Temp °C
17
18
18
18
18
18
18
18
18
19
18
17
17
16
15
14
14
16
18
18
16
15
Feels °C
18
19
19
19
19
19
20
18
19
19
16
15
15
13
13
12
12
14
16
16
15
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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