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Surf Forecasts:

Prainha surf break

Prainha surfForecast / Santa Catarina – Norte / Brazil

information circle12 Day Weather and Surf, issued 8 am Saturday 18 Oct 2025 -03
Forecast update in hr  min  s Forecast update imminent
Prainha surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Prainha sea temperature is
21.5° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Prainha this week:

The surf forecast for Prainha over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 19) at 6AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 1.6m and 9s. Another secondary swell of 0.4m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Prainha in the next 12 days are 3.0m 9s and forecast to arrive on Sunday (Oct 19) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 8s period and expected on Friday (Oct 24) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sun 19th Oct)10ft (3.0m) 9s
Best Surf 6AM (Sun 19th Oct)10ft (3.0m) 9s
Most Powerful 6AM (Sun 19th Oct)10ft (3.0m) 9s

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

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

Short Range Forecast Light rain (total 7mm), mostly falling on Sat morning. Warm (max 21°C on Sat morning, min 17°C on Sat night). Winds decreasing (strong winds from the S on Sat afternoon, light winds from the ESE by Mon morning).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Tue morning. Warm (max 21°C on Thu morning, min 18°C on Tue morning). Mainly fresh winds.

Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
E
0.5
E
1.8
SE
2.5
SSE
1.4
SE
1.3
ESE
1.3
ESE
1.1
ESE
1.1
ESE
1
E
0.9
ESE
1.2
E
1.2
E
1.7
E
1.2
E
1.2
E
1.2
E
1.4
E
1.5
E
1.4
E
1.3
E
Period(s) (?)889998998886787778888
Wave
Graph
(?)Metric surfscale
Energy kJ (?)42284931003281235244194160134104112134323150146143252266251223
Wind
(km/h)
15
SSW
30
SSE
40
S
25
S
30
SSE
20
SSE
15
SE
15
ESE
25
E
20
ENE
15
NE
30
ENE
20
ENE
20
NE
25
NE
25
NE
20
NE
20
NE
30
NE
25
NE
20
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		crosscross-
off		cross-
off		crosscrosscross-
on		cross-
on		onononononononcross-
on		oncross-
on		cross-
on		oncross-
on
High Tide
/ height (m)
1:03PM
1.24
1:02AM
1.30
1:33PM
1.28
1:38AM
1.35
2:01PM
1.29
2:12AM
1.38
2:28PM
1.26
2:46AM
1.37
2:54PM
1.21
3:20AM
1.32
3:21PM
1.15
3:56AM
1.26
3:48PM
1.08
Low Tide
/ height (m)
7:20PM
0.35
7:26AM
0.12
7:25PM
0.26
7:40AM
0.12
7:37PM
0.18
7:57AM
0.15
7:55PM
0.12
8:16AM
0.19
8:17PM
0.07
8:39AM
0.24
8:43PM
0.06
9:04AM
0.30
9:11PM
0.08
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Sunrise5:35--5:35--5:33--5:33--5:31--5:31--5:31--
Sunset-6:22--6:22--6:22--6:22--6:23--6:24--6:24-
rain showers
rain showers
rain showers
rain showers
clear
rain showers
rain showers
clear
part cloud
rain showers
clear
rain showers
part cloud
clear
clear
rain showers
clear
rain showers
rain showers
clear
part cloud
Rain (mm)
1211-11--1-2---1-21--
Temp. °C212118181819181919181920202020212120202020
Feels °C (?)221911131214151514151715171717181918161718
  • 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 - Norte

  1. weather stationWind Update Continuing clean conditions at Prainha (calm at Itapoa 22 km from Prainha). 0.6m 8s swell from the E with a 0.2m 8s swell from the SSE. 2 swells combining to make bigger set waves.

    1 hour 52 minutes ago Prainha
Expand
<
>
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22 km away, 1 h 52 min ago

0 km/h
S
0.0
21.5
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 Prainha 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 Prainha at:
surf-forecast.com

Information about the Prainha Surf forecast

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

Prainha is 14 km (9 miles) from Sao Francisco do Sul. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Sao Francisco do Sul. Sao Francisco do Sul has rooms for a wide range of budgets as well as car hire and transport links.

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