Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Issued: 8 pm 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
18.2° C

Slightly cooler than normal

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


Prainha surf forecast from 5 Jul 2026:

  • Best quality surf: Sunday 12 Jul, 3AM (local time) - 2.5ft (0.8m), 13s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 9AM (local time) - 4.5ft (1.4m), 10s period, SSE swell with 363 kJ wave energy.
  • Next surfable swell (1★+): Sunday 5 Jul, 3AM (local time) - 2ft (0.6m), 12s period with SE 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 05) at 3AM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 1.4m 10s and forecast to arrive on Tuesday (Jul 07) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Jul 07) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 5th Jul)2ft (0.6m) 12s
Best Surf 3AM (Sun 12th Jul)2.5ft (0.8m) 13s
Most Powerful 9AM (Tue 7th Jul)4.5ft (1.4m) 10s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let's have a look at what's on the menu for the next couple of weeks.

We're looking at a pretty flat start, to be honest. The first few days are a write-off, with nothing but small, messy junk and a lot of "poor surf conditions" flags. You'll be waiting for a while. The first real glimmer of hope doesn't show up until Tuesday morning, July 7th, but it's a bit of a mixed bag.

Tuesday, July 7th sees a bump in size at Prainha with a 5 ft swell from the SSE, but it's got a short 10-second period. The morning has a clean feel with a cross-offshore wind from the south at 12 mph, and the combined wave energy is a solid 515. It's a bit of a grunty one, and with that short period, it will be a bit lumpy and powerful. This is firmly in the "advanced" surfer zone. The afternoon turns into a cross-on mess, so the window is tight.

Thursday, July 9th and Friday, July 10th mornings offer a completely different vibe. We're talking small – 2 ft and 1 ft from the ESE. The key here is the wind: it's glassy. The conditions are described as "glassy" with a "surfable waves but very ordinary conditions" comment. The energy is weak (69 and 53), so it's a longboard or a big, fat fish situation. The crowds at Prainha can be there sometimes, so on a tiny, clean day, you might have company.

The first real standout that gets my blood pumping is Sunday, July 12th. The morning brings a 2 ft ESE swell, but the period stretches out to a nice 13 seconds from the east-southeast. The best part? It's glassy again. The combined energy is a solid 206 (moderate), so there's some push behind it. That 13-second period means it'll be a proper groundswell, offering long, clean lines. This is the pick of the first week.

Now, for the long-range call. The big one is on Sunday, July 19th. The forecast shows a 7 ft swell from the SSE, but it's a short-period 7-second wind swell, with a massive combined energy of 641 (strong). This is a lot of water moving, but it'll be a raw, close-out dump at a beach break. The wind is a cross-offshore from the south at 9 mph, and conditions are "clean," so it's for experts only. Anyone else will be getting pounded. This is a promising but less certain call two weeks out, so keep an eye on it.

So, to sum it up: the first week is a flat spell with a few tiny glassy windows for the longboard crew. The highlight is the clean, long-period swell on the morning of Sunday, July 12th. The second week has that big, raw 7 ft storm swell on the Sunday, July 19th, which is a serious proposition for the experts.

Rusty out.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Mon night. Very mild (max 17°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Some drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Fri afternoon, min 12°C on Tue night). Wind will be generally light.

Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Sat
11
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
0
0
1
0
0
1
2
0
1
1
0
1
1
0
1
1
0
0
0
0
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)
0.6
SE
12
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.7
SE
10
0.6
SE
10
1.4
SSE
10
1.5
SSE
8
0.7
SE
10
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.4
ESE
10
0.4
ESE
10
0.6
ESE
13
0.8
ESE
13
0.8
ESE
13
Wave Graph
Metric surfscale
Energy kJ
112
103
97
94
87
100
80
363
322
94
75
86
77
54
60
56
38
33
137
195
195
Wind (km/h)
5
WSW
5
N
10
ENE
10
NW
5
NNW
10
NNE
5
WSW
20
S
10
SE
5
WNW
5
WNW
10
NE
10
NW
5
WNW
10
NE
5
NW
5
WNW
10
SSE
10
NNW
20
SSE
20
SE
Wind State
glassy
cross
on
cross-off
cross
cross-on
off
cross-off
cross-on
cross-off
cross-off
on
cross-off
glassy
cross-on
cross-off
glassy
cross
cross
cross
cross
High Tide
6:16AM1.14m
7:11PM1.12m
7:13AM1.09m
8:08PM1.06m
8:18AM1.05m
9:10PM1.02m
9:31AM1.04m
10:16PM0.98m
10:47AM1.09m
11:20PM0.97m
11:59AM1.17m
00:18AM0.98m
1:02PM1.26m
Low Tide
10:58PM0.45m
11:30AM0.20m
11:43PM0.49m
12:18PM0.28m
00:35AM0.53m
1:18PM0.39m
1:40AM0.56m
5:15PM0.47m
5:40AM0.52m
6:37PM0.43m
6:31AM0.42m
7:38PM0.40m
7:11AM0.32m
cloud
cloud
cloud
part cloud
cloud
cloud
heavy rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
7:01
7:01
7:01
7:01
7:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:35
5:35
5:36
5:36
5:37
5:37
 mm
12
1
1
Temp °C
14
15
15
16
16
17
16
15
15
16
14
15
15
15
16
16
17
18
16
16
16
Feels °C
13
14
13
15
15
16
15
12
12
15
13
14
15
14
15
15
16
17
17
13
15
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
12
0.6
SE
11
0.6
SE
11
0.6
SE
11
0.6
SE
10
0.7
SE
10
0.6
SE
10
0.8
SE
10
0.9
SE
10
0.7
SE
10
0.7
ESE
9
0.7
ESE
10
0.6
ESE
10
0.5
ESE
10
0.5
ESE
10
0.5
ESE
10
0.4
ESE
10
0.4
ESE
10
0.6
ESE
13
0.8
ESE
13
0.8
ESE
13
Energy kJ
112
103
97
94
87
100
80
138
154
94
75
86
77
54
60
56
38
32
137
195
195
Swell 2
Height (m)
Direction
Period (s)
0.4
E
8
0.3
E
9
0.3
E
9
0.3
E
9
0.3
E
9
0.3
E
9
0.2
E
8
0.2
E
8
0.2
ESE
12
0.2
E
8
0.1
SE
12
0.2
SSE
13
0.1
SE
11
0.2
ESE
12
0.3
SSE
9
0.4
NE
4
0.3
ENE
4
0.3
ESE
13
0.3
ENE
5
0.3
E
5
0.3
SE
4
Energy kJ
23
15
15
14
14
13
6
6
15
5
6
18
5
14
16
3
3
33
5
5
2
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
22
0.3
SE
19
0.3
SE
18
0.1
SE
16
0.1
SE
14
0.2
E
8
0.2
E
8
0.1
E
8
0.1
E
8
0.2
E
8
0.1
SE
4
0.1
E
16
0.2
ESE
12
0.3
ENE
4
0.1
S
8
0.1
S
16
0.3
ENE
5
Energy kJ
18
58
49
10
8
5
5
1
1
5
1
5
15
4
1
5
6
Wind waves
Height (m)
Direction
Period (s)
1.4
SSE
10
1.5
SSE
8
0.1
SW
4
0.5
NE
4
0.4
SSE
3
0.4
SSE
4
Energy kJ
363
322
1
7
2
5
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
2
2
Distance (km)
0
4
52
0
4
4
0
52
40
0
0
73
0
0
73
0
0
52
4
52
128
Best forecast wave conditions in Santa Catarina - Norte
Rating
(10 max)
1
1
2
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
2
Best forecast wave conditions in Brazil
Rating
(10 max)
3
2
3
2
2
2
2
3
2
1
1
2
1
1
2
1
1
1
1
2
2
Header Global
Rating
(10 max)
5
9
7
5
6
8
7
5
5
9
8
9
9
5
5
5
5
8
7
6
8
  • 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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