Ribanceira surfForecast / Santa Catarina – Sul / Brazil

information circle16 Day Weather and Surf, issued 8 am Monday 18 May 2026 -03
Forecast update in hr  min  s Forecast update imminent
Ribanceira surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ribanceira sea temperature is
20.9° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Ribanceira this week:

The surf forecast for Ribanceira over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 6PM. The primary swell is predicted to be 1.8m and 7s period with a secondary swell of 0.4m and 13s. Another secondary swell of 0.2m and 16s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Ribanceira in the next 16 days are 3.5m 15s and forecast to arrive on Thursday (May 21) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Sunday (May 24) at 3PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 18th May)6ft (1.8m) 7s
Best Surf12AM (Thu 21st May)10ft (3.0m) 15s
Most Powerful 3AM (Thu 21st May)11ft (3.5m) 15s

Table - best surf conditions forecast for Ribanceira over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 13mm), heaviest on Mon morning. Very mild (max 17°C on Tue morning, min 12°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Sat night. Very mild (max 18°C on Sat morning, min 12°C on Thu night). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
1
4
4
3
2
3
5
4
3
4
4
2
3
2
2
2
2
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)
1.8
S
6
2
S
7
1.5
S
7
2.2
S
14
2.4
SSE
15
1.9
S
14
1.6
S
13
1.9
S
14
3
S
15
3
S
15
3
S
14
2.5
S
14
2.4
S
14
2.2
S
13
2
S
13
1.8
S
12
1.6
S
12
1.3
S
11
1.1
S
11
1
S
11
1
S
10
Wave Graph
Metric surfscale
Energy kJ
237
423
226
1762
2576
1343
826
1324
4168
3934
3388
2853
2243
1760
1355
972
722
441
286
227
221
Wind (km/h)
25
SW
20
WSW
15
WSW
15
SW
10
S
5
W
5
WSW
15
SSE
15
SW
10
SW
20
S
10
W
5
SW
5
SE
5
W
10
WSW
15
SSE
0
NE
5
NE
10
NE
10
NNE
off
off
off
off
cross-off
glassy
glassy
cross-off
off
off
cross-off
cross-off
glassy
cross
cross-off
off
cross-off
glassy
glassy
on
on
High Tide
3:57PM0.66m
3:31AM0.55m
4:43PM0.62m
4:02AM0.54m
5:57PM0.58m
4:41AM0.53m
7:07PM0.55m
5:53AM0.52m
7:49PM0.53m
7:03AM0.52m
8:34PM0.51m
7:58AM0.52m
11:16PM0.50m
Low Tide
10:04PM0.28m
9:37AM0.08m
11:27PM0.34m
10:57AM0.13m
00:25AM0.37m
12:12PM0.15m
8:59PM0.48m
1:06PM0.17m
8:45PM0.47m
2:17PM0.20m
8:46PM0.46m
3:32AM0.35m
3:39PM0.19m
mod rain
light rain
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
part cloud
rain showers
light rain
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:50
6:50
6:52
6:52
6:52
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:29
5:29
5:29
5:28
9
3
1
4
2
Temp °C
15
13
13
17
16
14
17
16
14
16
16
14
16
16
15
18
18
17
18
18
18
11
9
10
15
14
13
16
14
12
12
12
12
15
15
15
16
16
18
18
17
17
Swell 1
Height (m)
Direction
Period (s)
0.4
SSE
14
0.4
SSE
13
0.7
SE
6
1.8
S
14
2.4
SSE
15
1.9
S
14
1.6
S
13
1.9
S
14
3
S
15
3
S
15
3
S
14
2.5
S
14
2.4
S
14
2.2
S
13
2
S
13
1.8
S
12
1.6
S
12
1.3
S
11
1.1
S
11
1
S
11
1.6
ENE
8
Energy kJ
70
58
33
1192
2576
1343
826
1324
3688
3934
3388
2853
2243
1760
1355
972
722
441
286
227
288
Swell 2
Height (m)
Direction
Period (s)
0.1
E
7
0.1
S
17
0.4
S
12
1
SSE
18
0.5
E
6
0.4
E
6
0.3
E
6
0.3
ENE
7
0.2
ENE
7
0.2
E
9
0.3
E
5
0.9
E
6
1
S
10
Energy kJ
1
6
46
582
16
10
6
10
5
6
4
49
221
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
11
0.3
SSE
15
0.5
ESE
6
0.2
ENE
8
0.2
ENE
7
0.1
E
9
0.1
E
9
Energy kJ
5
44
20
6
5
2
2
Wind waves
Height (m)
Direction
Period (s)
1.8
S
6
2
S
7
1.5
S
7
2.2
S
14
3
S
14
1.1
E
6
1.6
E
6
1.5
E
6
1.8
ENE
7
Energy kJ
237
423
226
1762
4168
74
194
184
317
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
4
4
3
2
3
5
4
4
4
4
4
3
2
2
2
2
1
1
Distance (km)
36
0
0
0
0
0
0
0
0
0
17
0
0
17
0
0
0
0
0
5
2
Best forecast wave conditions in Santa Catarina - Sul
Rating
(10 max)
1
3
3
5
4
4
4
4
7
5
4
5
4
4
4
4
3
3
3
3
3
Best forecast wave conditions in Brazil
Rating
(10 max)
1
3
3
5
4
4
4
4
7
5
5
4
4
4
4
4
4
3
3
3
3
Header Global
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
5
7
5
5
7
6
5
4
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Ribanceira Surf forecast

The above surf forecast table for Ribanceira provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ribanceira can be found by selecting the local surf guide option on the grey menu. Our Ribanceira surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ribanceira) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Ribanceira may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Ribanceira is 6 km (4 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.

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