Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 2 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
19.1° C
0.8° 

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


Prainha surf forecast from 3 Aug 2026:

  • Best quality surf: Monday 3 Aug, 12AM (local time) - 2.5ft (0.7m), 8s period, E swell with offshore winds.
  • Most powerful swell: Sunday 9 Aug, 9PM (local time) - 4ft (1.2m), 6s period, SE swell with 102 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 12AM (local time) - 2.5ft (0.7m), 8s period with E swell.

Best Forecast Surf Conditions for Prainha this week:

The surf forecast for Prainha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 03) at 12AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.4m and 4s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 1.2m 6s and forecast to arrive on Sunday (Aug 09) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Saturday (Aug 08) at 12PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 3rd Aug)2.5ft (0.7m) 8s
Best Surf12AM (Mon 3rd Aug)2.5ft (0.7m) 8s
Most Powerful 9PM (Sun 9th Aug)4ft (1.2m) 6s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.

To be straight with you, it’s a pretty quiet stretch overall. The first real surf worth paddling out for is the Wednesday morning session on the 5th of August, but even that’s small and the conditions are just ordinary. The good news is there’s a nice little window that opens up on Tuesday morning, the 11th of August, that really stands out as the best on offer. That’s the one to circle.

Now, let’s talk about the place. The break is Prainha, an advanced spot that’s very consistent. The water temperature is 66.4°, which is about normal for this time of year, so no need for a thick suit.

The standout session is Tuesday morning, 11th of August. We’ve got a 3.3ft swell coming from the southeast with a long period of 12 seconds. That’s a proper groundswell, and with the wind blowing cross-offshore from the southwest at 9 mph, the surface will be clean. The combined wave energy is moderate at 292. The swell direction is straight out of the southeast, which is the optimum direction for this spot. This is the best combination of size, wind, and direction we’ll see for a while. It’s a solid choice for the experienced surfer, but be aware that crowds are possible here.

The rest of the forecast is pretty forgettable. The week leading up to that is all small waves, weak energy, and mostly poor conditions. After the 11th, the swell drops off again, and the wind turns messy. The 17th of August morning has a little pulse of 3.6ft easterly swell with clean offshore wind from the west at 3 mph, but it’s just ordinary, not a standout.

So, keep your eyes on the 11th. That’s your session.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue morning, min 16°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 27°C on Fri night, min 17°C on Fri night). Wind will be generally light.

Sun
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
0
0
0
0
0
1
1
0
0
1
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
7
0.7
E
8
0.6
E
7
0.6
E
7
0.5
E
7
0.3
SE
12
0.3
SE
12
0.4
SE
12
0.6
E
7
0.6
E
7
0.6
E
7
0.6
E
8
0.6
E
8
0.6
E
8
0.6
E
8
0.6
E
8
0.2
SSE
10
0.6
E
8
0.6
E
8
0.6
E
8
Wave Graph
Metric surfscale
Energy kJ
62
55
38
37
25
24
23
35
37
35
38
42
42
42
41
41
9
44
44
41
Wind (km/h)
20
SSE
10
SW
5
W
10
NE
10
N
0
NW
15
NE
10
S
0
WSW
10
ESE
5
N
5
N
10
ENE
10
N
10
N
10
E
15
S
25
SSE
15
SE
0
NE
Wind State
cross
off
glassy
on
cross-on
glassy
cross-on
cross-off
glassy
cross-on
cross-on
glassy
on
cross
cross
on
cross-off
cross-off
cross-on
glassy
High Tide
5:44PM1.20m
5:45AM1.21m
6:29PM1.10m
6:39AM1.12m
7:21PM0.99m
7:46AM1.04m
8:25PM0.89m
9:09AM1.00m
3:15PM0.66m
9:42PM0.83m
3:54AM0.57m
10:59PM0.84m
12:00PM1.14m
00:04AM0.91m
Low Tide
10:29PM0.34m
10:57AM0.17m
11:05PM0.37m
11:36AM0.30m
11:46PM0.41m
12:22PM0.46m
00:35AM0.47m
1:24PM0.63m
1:45AM0.53m
5:51AM0.53m
7:02PM0.49m
6:42AM0.39m
7:49PM0.43m
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:50
6:50
6:50
6:48
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:47
5:47
5:49
5:49
5:50
5:50
 mm
Temp °C
18
16
18
19
19
20
20
20
19
19
19
21
21
21
23
25
27
17
17
18
Feels °C
16
16
18
19
19
21
20
21
20
20
21
21
22
21
23
26
26
15
16
20
  • Map Icons:
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  • 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 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 16 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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