Surf Break

Lat Long: 3.41° S 39.04° W

Ronco do Mar 48 hour detailed Surf Forecast

Issued: 8 am 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Ronco do Mar sea temperature is
27.8°C
1.2° 

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


How big are the waves at Ronco do Mar today (17 Oct):

  • Morning surf: Morning surf (17 Oct, local time) - 4.5ft (1.3m), 6s period with E swell.
  • Afternoon surf: Afternoon surf (17 Oct, local time) - 3.5ft (1.1m), 6s period with ENE swell.
  • Evening surf: Evening surf (17 Oct, local time) - 3.5ft (1.0m), 6s period with ENE swell.

The current surf forecast for Ronco do Mar at 1PM is: 1.2m 6s primary swell from a East-northeast direction and 0.3m 11s secondary swell from a North-northeast direction, 0.2m 8s secondary swell from a North-northeast direction (forecast issued at 08:00am October 17). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (17 Oct)4.5ft (1.3m)6s
Afternoon (17 Oct)3.5ft (1.1m)6s
Evening (17 Oct)3.5ft (1.0m)6s

Table - waves today at Ronco do Mar. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 28°C on Sat morning, min 25°C on Sun night). Wind will be generally light.

Saturday
17
Sunday
18
Monday
19
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.3
ENE
6
1.3
E
6
1.2
ENE
6
1.1
ENE
6
1
ENE
6
1
ENE
6
1.1
ENE
6
1.2
ENE
6
1.2
ENE
7
1.1
ENE
6
1.1
ENE
6
1.1
ENE
6
1.1
ENE
6
0.4
NNE
15
0.4
NNE
15
0.5
N
14
0.5
N
14
0.5
N
14
0.5
N
14
0.5
N
14
0.5
N
14
0.5
N
14
Wave Graph
Metric surfscale
Energy kJ
126
126
115
101
88
90
108
110
117
108
77
86
92
82
85
107
106
103
94
93
93
97
Wind (km/h)
20
ESE
25
ESE
20
E
20
E
15
E
15
E
15
E
15
E
15
E
20
E
25
E
20
E
15
ESE
15
E
15
E
15
E
15
ESE
25
E
25
E
25
E
15
E
20
ENE
Wind State
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
High Tide
8:37AM1.77m
8:52PM1.92m
9:55AM1.70m
10:14PM1.86m
11:24AM1.74m
Low Tide
2:28PM0.98m
3:30AM0.89m
3:46PM1.07m
4:55AM0.92m
5:17PM1.06m
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
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5:15
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—
—
—
—
—
—
5:15
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—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
5:27
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—
—
—
—
—
—
5:27
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—
—
—
—
—
—
5:25
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
25
26
28
28
26
26
26
26
26
27
28
28
26
25
25
25
25
27
28
28
27
26
Feels °C
25
25
28
27
27
27
27
27
26
26
27
27
27
26
26
26
26
27
27
27
29
27
  • 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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