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Surf Forecasts:

Silveira surfForecast / Santa Catarina – Sul / Brazil

information circle12 Day Weather and Surf, issued 2 pm Thursday 18 Sep 2025 -03
Forecast update in hr  min  s Forecast update imminent
Silveira surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Silveira sea temperature is
19.2° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Silveira this week:

The surf forecast for Silveira over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 3AM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.7m and 11s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Silveira in the next 12 days are 2.5m 8s and forecast to arrive on Tuesday (Sep 23) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Monday (Sep 22) at 12PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 19th Sep)5ft (1.6m) 10s
Best Surf12AM (Tue 23rd Sep)8ft (2.5m) 8s
Most Powerful12AM (Tue 23rd Sep)8ft (2.5m) 8s

Table - best surf conditions forecast for Silveira over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 3mm), mostly falling on Sat night. Warm (max 25°C on Fri afternoon, min 19°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 73mm), heaviest during Sun night. Warm (max 21°C on Mon morning, min 12°C on Mon night). Winds decreasing (fresh winds from the SSW on Mon afternoon, calm by Tue night).

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
2
1
0
2
1
0
1
1
2
2
1
0
4
3
1
3
2
0
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
E
1.6
E
1.5
E
1.5
E
1.3
E
1.2
E
1.4
E
1.6
ENE
1.3
ENE
1.2
ENE
1.2
ENE
1.3
ENE
1.6
S
2.5
S
1.1
ENE
1.3
S
1.3
S
1.2
S
1
S
1
S
1.2
SSE
Period(s) (?)101099888999997810111110101012
Wave
Graph
(?)Metric surfscale
Energy kJ (?)590484357355228191283409262212203254269980260441403290198194404
Wind
(km/h)
20
NE
15
NNE
15
NNE
25
NE
15
N
10
NE
15
ENE
5
NNE
5
NNE
10
SW
5
NNW
15
N
30
SSW
10
SW
5
NW
10
E
5
W
5
SW
15
SSE
5
SSE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscrosscross-
off		crosscross-
on		crosscrosscross-
off		glasscross-
off		crosscross-
off		cross-
off		onglasscross-
off		cross-
on		cross-
on		on
High Tide
/ height (m)
11:43PM
0.51
2:08PM
0.63
12:06AM
0.59
1:45PM
0.60
12:37AM
0.66
1:36PM
0.60
1:10AM
0.71
1:47PM
0.61
1:43AM
0.73
2:06PM
0.61
2:17AM
0.72
2:28PM
0.61
2:52AM
0.70
Low Tide
/ height (m)
6:55PM
0.33
6:47AM
-0.02
7:18PM
0.29
7:24AM
-0.03
7:43PM
0.25
7:59AM
-0.01
8:08PM
0.22
8:31AM
0.03
8:29PM
0.19
9:00AM
0.10
8:41PM
0.17
9:25AM
0.18
8:23PM
0.15
9:34AM
0.26
Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise--6:07--6:05--6:05--6:03--6:03--6:01--6:01
Sunset6:07--6:07--6:08--6:08--6:09--6:09--6:10--
clear
part cloud
cloud
clear
clear
clear
part cloud
rain showers
rain showers
heavy rain
heavy rain
mod rain
rain showers
clear
clear
clear
clear
part cloud
part cloud
rain showers
rain showers
Rain (mm)
-------121249102------22
Temp. °C221924251925242022202021161520191618171718
Feels °C (?)201921221825242224222122111118161617151617
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Santa Catarina - Sul

  1. weather stationWind Update The wind is still cross-on at Silveira (light winds from the ENE at Florianopolis Airport 43 km from Silveira). 1.8m 10s swell from the E with a 0.8m 12s groundswell from the SE. 2 swells combining to make bigger set waves.

    2 hours 32 minutes ago Silveira
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43 km away, 2 h 32 min ago

11 km/h
ENE
0.0
19.2
Air / Water (°C)
Please reload the page to see if there are any updates.

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 Silveira 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.

View detailed surf forecast for Silveira at:
surf-forecast.com

Information about the Silveira Surf forecast

The above surf forecast table for Silveira provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Silveira can be found by selecting the local surf guide option on the grey menu. Our Silveira 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 (Silveira) 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 Silveira 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.

Silveira is 22 km (14 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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