Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 2 pm 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
18.0° C
0.6° 

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


Prainha surf forecast from 12 Jul 2026:

  • Best quality surf: Monday 13 Jul, 12AM (local time) - 7ft (2.2m), 8s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Monday 13 Jul, 12AM (local time) - 7ft (2.2m), 8s period, SSE swell with 682 kJ wave energy.
  • Next surfable swell (1★+): Sunday 12 Jul, 12AM (local time) - 3ft (0.9m), 13s period with ESE 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 Sunday (Jul 12) at 12AM. The primary swell is predicted to be 0.9m and 13s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 2.2m 8s and forecast to arrive on Monday (Jul 13) 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 1.8m 8s period and expected on Saturday (Jul 18) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 12th Jul)3ft (0.9m) 13s
Best Surf12AM (Mon 13th Jul)7ft (2.2m) 8s
Most Powerful12AM (Mon 13th Jul)7ft (2.2m) 8s

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


Alright folks, Rusty here. Let's have a look at what Prainha's got cookin' for us over the next couple of weeks.

Right now, there's not a whole lot to get excited about. The surf is real small and the conditions are messy. It's gonna be a bit of a slow start with a few days of nothing special before we see some real action.

Starting off Saturday the 11th, it's pretty marginal. We've got a weak 3ft swell from the ESE at a long 13 seconds, but a light cross-onshore wind from the NE messes it up. The combined energy is weak (269), so it's not really worth paddling out for. Sunday the 12th cleans up a bit in the morning with a light offshore from the SW and a clean 3ft ESE swell (period 12 secs). That's your first real chance for a session, but it's still small. The afternoon turns a bit bumpy with a cross-offshore wind.

Now, here's where it gets interesting. Monday the 13th morning is the first standout. We've got a solid pulse of swell building to 6ft from the SSE. The period is a short 8 seconds, so it's a bit of a windswell, but the wind is light and offshore from the SW, making it clean. The combined energy is moderate (570), and it's going to be *very good*. This is an advanced break so that size is perfect for the experienced crew, but beginners, it's going to be a bit heavy.

The rest of the week stays fun. Tuesday morning the 14th is clean again with a 4ft SE swell and a light cross-offshore wind. But the real gem of the week might be Tuesday afternoon. The wind goes glassy as can be, dead calm from the ESE, and the swell holds at 4ft with a nice 11-second period. It'll be clean as a whistle and the combined energy is a solid 389. That's a session you'll remember.

Wednesday the 15th and Thursday the 16th are a bit of a mixed bag. Wednesday gets blown out by a moderate cross-onshore wind. Thursday morning, though, delivers again. Thursday morning the 16th has glassy conditions with a light offshore from the W, and a 4ft swell from the ESE at a longer 12-second period. The combined energy jumps to 459. That’s another beautiful, clean morning for the advanced crew.

Friday the 17th is similar – clean in the morning with light cross-offshore winds and a 4ft E swell – but it gets lumpy in the afternoon.

Then we hit a dry spell. From Saturday the 18th all the way through to Saturday the 25th, the swell drops right off. We're looking at tiny waves, mostly under 3ft, with very low combined energy (mostly below 200, often below 100). It’s a long, flat stretch. The mornings are glassy with a 3ft to 3ft E swell, but it's barely surfable. Conditions are "ordinary" at best. This is just one of those blank runs for the area.

But hold on, the forecast is pointing to a return of real swell at the very end of the window. Sunday morning the 26th, we get a new pulse of 4ft swell from the SE at a long 12 seconds, with a clean cross-offshore wind. The combined energy is a solid 492, and conditions are good. That's your bet for the second week. The afternoon gets a little hairy with a strong cross-shore wind, but the morning session looks promising.

And for the water temp, it's sitting at 64°, which is pretty much average for the time of year – no major surprises there.

So, to wrap it up: the best waves on offer are Monday morning the 13th, Tuesday afternoon the 14th, and Thursday morning the 16th. After that, it’s a long flat stretch until Sunday morning the 26th. Keep an eye on that one, but the longer-range stuff is always a bit of a gamble.

Stay wet,
Rusty

Short Range Forecast

Light rain (total 7mm), mostly falling on Sat afternoon. Warm (max 22°C on Sun morning, min 12°C on Mon morning). Winds increasing (calm on Sat night, fresh winds from the SSE by Sun afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Wed morning, min 14°C on Wed night). Wind will be generally light.

Sat
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
2
2
1
4
3
1
3
2
2
1
0
0
1
2
0
1
2
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
ESE
13
0.9
ESE
13
0.8
ESE
12
0.9
SE
12
2.2
SSE
8
1.7
SSE
8
1.6
SSE
8
0.9
SE
10
1.2
SE
10
1.3
ESE
11
1.3
ESE
11
1.3
ESE
11
1.2
ESE
10
1.2
ESE
11
1.3
ESE
12
1.3
ESE
12
1.1
ESE
12
1.2
E
12
0.8
ESE
12
0.5
ESE
11
0.9
E
8
Wave Graph
Metric surfscale
Energy kJ
269
242
193
216
682
385
336
163
304
389
419
387
291
363
459
475
344
418
156
66
103
Wind (km/h)
5
NE
5
W
10
SW
20
SSW
15
S
10
SW
15
SSE
10
SW
10
SW
5
ESE
10
N
20
NE
15
NE
10
N
5
W
10
NE
10
NNW
5
W
10
NNE
5
NNW
5
NW
Wind State
cross-on
glassy
off
cross-off
cross-off
cross-off
cross
off
cross-off
glassy
cross-on
cross-on
cross-on
cross
glassy
cross-on
cross
cross-off
cross-on
cross
glassy
High Tide
1:09AM1.01m
1:57PM1.34m
1:54AM1.05m
2:45PM1.37m
2:34AM1.10m
3:30PM1.36m
3:13AM1.15m
4:11PM1.31m
3:50AM1.19m
4:49PM1.23m
4:28AM1.21m
5:26PM1.15m
5:07AM1.19m
Low Tide
8:28PM0.40m
7:43AM0.22m
9:11PM0.43m
8:08AM0.14m
9:42PM0.49m
8:31AM0.08m
9:39PM0.56m
8:57AM0.04m
9:10PM0.57m
9:25AM0.05m
9:24PM0.54m
9:56AM0.09m
9:50PM0.50m
10:28AM0.16m
rain showers
rain showers
clear
part cloud
clear
clear
clear
part cloud
cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
7:01
7:00
7:00
7:00
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:37
5:37
5:38
5:38
5:39
5:39
 mm
4
3
Temp °C
17
17
22
22
16
14
15
15
15
17
17
18
18
17
16
16
17
17
18
19
21
Feels °C
17
17
20
18
13
11
12
13
14
17
16
16
17
16
16
15
16
16
17
18
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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