Riozinho Surf Break

Lat Long: 27.68° S 48.48° W

Riozinho 48 hour detailed Surf Forecast

Issued: 8 pm 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Riozinho sea temperature is
18.3° C
0.4° 

Riozinho surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Riozinho today (18 Aug):

  • Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.0m), 9s period with E swell.

The current surf forecast for Riozinho at 11PM is: 1.0m 9s primary swell from a East direction and 0.1m 9s secondary swell from a South direction (forecast issued at 08:00pm August 18). The wind direction is predicted to be glassy.

Time (-03) & DateWave HeightWave Period
Morning (18 Aug)--
Afternoon (18 Aug)--
Evening (18 Aug)3.5ft (1.0m)9s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Tue night, min 17°C on Fri afternoon). Wind will be generally light.

Tue
18
Wednesday
19
Thursday
20
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
1
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
E
8
1
E
9
1
E
8
0.9
ENE
8
0.8
ENE
8
0.8
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
8
0.7
E
7
0.7
E
7
0.5
E
7
0.5
E
7
Wave Graph
Metric surfscale
Energy kJ
177
151
147
115
90
84
63
60
58
57
57
55
55
54
53
53
26
25
Wind (km/h)
5
NNW
0
W
5
E
10
S
10
S
10
S
20
SSE
20
S
15
S
10
S
5
SE
0
WNW
5
NNE
10
N
20
N
20
NNE
10
N
15
N
Wind State
cross
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
glassy
cross
cross-on
cross-on
cross-on
cross
High Tide
4:23PM0.62m
5:07AM0.63m
4:43PM0.59m
6:06AM0.54m
12:41PM0.53m
4:58PM0.54m
Low Tide
9:43PM0.26m
9:34AM0.42m
10:13PM0.29m
9:13AM0.48m
2:40PM0.52m
clear
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
 mm
Temp °C
28
23
21
20
18
19
20
20
19
18
18
18
18
19
21
22
20
19
Feels °C
30
26
23
20
18
20
19
19
19
19
20
20
20
20
20
21
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 Riozinho 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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