Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 8 am 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
19.4° C
1.2° 

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


Prainha surf forecast from 27 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 6AM (local time) - 2ft (0.6m), 6s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 2 Aug, 6AM (local time) - 3ft (0.9m), 7s period, E swell with 87 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 6AM (local time) - 2ft (0.6m), 6s 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 Wednesday (Jul 29) at 6AM. The primary swell is predicted to be 0.6m and 6s period with a secondary swell of 0.3m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 0.9m 7s and forecast to arrive on Sunday (Aug 02) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 5s period and expected on Tuesday (Jul 28) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Wed 29th Jul)2ft (0.6m) 6s
Best Surf 6AM (Wed 29th Jul)2ft (0.6m) 6s
Most Powerful 6AM (Sun 2nd Aug)3ft (0.9m) 7s

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


The Lowdown

Alright folks, Rusty here. Let’s take a good look at what’s lining up for Prainha over the next couple of weeks. I gotta be straight with you: this is a rough stretch. The overall pattern is one of tiny, weak, and mostly messy surf. The wave energy is just lacking, and with only one standout window of truly clean conditions, we are looking at a whole lot of waiting around. There’s a big gap with nothing worth paddling out for, so don’t get your hopes up too high.

We kick things off on Monday morning, the 27th of July. It’s the best we’re going to see for a long while. Prainha has tiny 2ft swell pushing in from the ESE with a short, weak period of 8 seconds. The combined energy is a paltry 50, so it’s weak. What makes it worth a mention is the glassy conditions—wind is from the WSW at a mere 3 mph. That’s rare, and it’ll make the water look like a mirror. Water temp is sitting at 67°, which is a touch warmer than normal for this time of year, so that’s a small bonus. It’s surfable but very ordinary, so don't expect much. The rest of that day and all of Tuesday are a write-off with onshore winds and even smaller surf.

From Wednesday the 29th all the way through to Monday the 11th of August, we are looking at a massive stretch of poor surf. Most mornings and afternoons show tiny waves under 3ft, often with poor, onshore, or cross-onshore winds. The combined swell energy is almost always below 100, so weak is the name of the game. A few mornings, like Thursday the 30th of July, are clean but the swell is only 1ft with a ridiculously short 5-second period. There’s a brief uptick on Sunday the 2nd of August with 3ft swell from the east, but again, onshore winds ruin it.

Now, there is a curious little event on Thursday morning, the 6th of August. The wind goes totally calm, glassy as can be. The swell is only 1ft but the period stretches to 10 seconds, giving a little more shape. Combined energy is 69, still weak. For a split second there, it might be worth a look if you are desperate. The following Friday morning, the 7th of August, actually sees combined energy hit 121, which is moderate wave energy for the first time, with a 2ft swell from the south at 9 seconds, but the wind is a messy cross-shore. That’s the highest energy we see, but the conditions aren’t there.

By Saturday the 8th of August morning, we get glassy winds from the WNW at 3 mph, with a 1ft swell from the SE at a long 12-second period. That’s a long-period groundswell, but it’s tiny. That same glassy window pops up again on the 9th and 10th of August mornings, each time with a 2ft and 2ft east swell, but the energy is low and the wave height just isn’t there to offer anything more than a wobbly ride on a longboard. The breakout is only ever ‘surfable but very ordinary’ on those glassy windows.

For advanced surfers, there is literally nothing here that’s going to get the heart pumping. The water is a touch warmer than normal, but that’s about the only positive. Honestly, this setup looks more interesting for kite surfing than paddle surfing given the weak swell and cross-shore winds on many afternoons. We’re looking at a blank run that’s pretty normal for this area when the weather patterns settle in. Forecasts can change, but right now, keep the board in the bag.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Tue afternoon, min 17°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Thu morning. Warm (max 21°C on Sat night, min 17°C on Thu morning). Wind will be generally light.

Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
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)
0.6
ESE
8
0.6
ESE
8
0.4
ESE
8
0.4
ESE
8
0.4
SE
8
0.3
ESE
8
0.3
ESE
8
0.2
ESE
8
0.2
ESE
8
0.4
SE
5
0.5
E
7
0.5
E
7
0.4
E
7
0.4
E
7
0.5
E
6
0.7
E
6
0.8
E
6
0.9
E
7
0.9
E
7
0.8
E
7
0.8
E
8
Wave Graph
Metric surfscale
Energy kJ
46
45
26
25
16
13
12
6
7
9
23
23
15
15
19
35
51
80
87
69
74
Wind (km/h)
5
WSW
10
NE
15
N
10
N
10
NE
15
S
5
S
20
SE
15
S
10
S
5
E
5
E
10
NNE
15
NE
15
NNE
10
N
10
ENE
10
W
10
N
10
ENE
5
NNW
Wind State
glassy
on
cross-on
cross-on
on
cross-off
glassy
cross
cross-off
cross-off
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
off
cross-on
on
glassy
High Tide
2:02PM1.24m
1:54AM1.15m
2:38PM1.29m
2:30AM1.23m
3:14PM1.32m
3:06AM1.29m
3:49PM1.33m
3:42AM1.32m
4:25PM1.31m
4:20AM1.32m
5:03PM1.27m
5:00AM1.28m
5:44PM1.20m
Low Tide
8:26PM0.43m
8:09AM0.12m
8:36PM0.41m
8:33AM0.06m
8:47PM0.38m
8:56AM0.03m
9:04PM0.36m
9:22AM0.01m
9:27PM0.33m
9:51AM0.03m
9:56PM0.33m
10:23AM0.08m
10:29PM0.34m
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
light rain
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
6:54
6:54
6:52
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:45
5:45
5:46
5:46
5:47
 mm
2
Temp °C
20
20
19
21
22
19
22
18
18
17
17
18
18
19
19
20
20
21
20
20
19
Feels °C
21
20
18
21
22
20
22
17
18
17
18
19
19
19
20
21
20
23
21
20
20
  • 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 
submit an eyeball surf report

Quick surf report for Prainha:

join our community of surf reporters

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.


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.

Nearest locationNearest