Riozinho Surf Break

Lat Long: 27.68° S 48.48° W

Riozinho 48 hour detailed Surf Forecast

Issued: 2 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Riozinho sea temperature is
17.4°C
1.9° 

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 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 2.5ft (0.7m), 10s period with SSE swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 2.5ft (0.7m), 9s period with SSE swell.
  • Evening surf: Evening surf (18 Sep, local time) - 2ft (0.6m), 9s period with SSE swell.

The current surf forecast for Riozinho at 6AM is: 0.8m 10s primary swell from a South-southeast direction and 0.3m 10s secondary swell from a East-southeast direction, 0.5m 4s secondary swell from a Northeast direction (forecast issued at 02:00am September 18). The wind direction is predicted to be cross-shore.

Time (-03) & DateWave HeightWave Period
Morning (18 Sep)2.5ft (0.7m)10s
Afternoon (18 Sep)2.5ft (0.7m)9s
Evening (18 Sep)2ft (0.6m)9s

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


Short Range Forecast

Heavy rain (total 55mm), heaviest during Sat afternoon. Warm (max 21°C on Sun afternoon, min 18°C on Fri morning). Winds increasing (light winds from the NNW on Fri morning, fresh winds from the NNE by Sat night).

Friday
18
Saturday
19
Sunday
20
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
!
2
Swell
Height Map
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
SSE
10
0.8
SSE
10
0.8
SSE
10
0.7
SSE
10
0.7
SSE
10
0.7
SSE
9
0.7
SSE
9
0.6
SSE
9
1.4
NE
6
1.7
ENE
7
1.8
NE
7
1.7
ENE
7
1.7
ENE
7
0.8
ESE
7
1.2
ENE
7
1.5
ENE
7
1.3
NE
8
1.5
NE
8
3
NE
8
3
NE
9
3
NE
9
3
NE
10
3
NE
10
1.7
E
10
Wave Graph
Metric surfscale
Energy kJ
135
127
125
83
80
76
75
56
152
244
295
286
266
69
143
200
205
264
1316
1373
1508
1626
1954
561
Wind (km/h)
10
NW
10
NNW
10
NNW
5
NNW
15
NNE
15
NNE
10
NNE
15
NNE
15
NNE
20
NNE
20
NE
15
NE
15
NE
20
NE
20
NE
30
NE
30
NNE
30
NNE
25
NNE
25
N
25
NNE
25
NNE
15
N
15
N
Wind State
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
High Tide
5:40AM0.54m
12:15PM0.56m
4:00PM0.55m
11:50PM0.33m
12:03PM0.62m
11:09PM0.41m
12:09PM0.68m
Low Tide
8:30AM0.49m
2:46PM0.55m
9:54PM0.32m
1:57AM0.32m
9:43PM0.40m
3:46AM0.27m
5:37PM0.42m
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
mod rain
mod rain
mod rain
mod rain
light rain
part cloud
cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:07
6:07
 mm
1
1
2
1
1
1
4
10
9
10
6
6
2
1
Temp °C
17
16
17
18
20
20
19
18
18
18
19
19
19
18
18
18
18
19
19
19
20
21
20
19
Feels °C
16
15
16
18
19
18
19
17
18
16
17
18
19
17
17
15
15
16
18
17
19
20
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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