Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 2 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
17.5° C
1.0° 

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


Prainha surf forecast from 15 Jul 2026:

  • Best quality surf: Thursday 16 Jul, 12AM (local time) - 3.5ft (1.0m), 10s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Thursday 16 Jul, 6AM (local time) - 3.5ft (1.0m), 10s period, ESE swell with 218 kJ wave energy.
  • Next surfable swell (1★+): Thursday 16 Jul, 12AM (local time) - 3.5ft (1.0m), 10s 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 Thursday (Jul 16) at 12AM. The primary swell is predicted to be 1.0m and 10s period. 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 1.0m 10s and forecast to arrive on Thursday (Jul 16) at 6AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Saturday (Jul 18) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Thu 16th Jul)3.5ft (1.0m) 10s
Best Surf12AM (Thu 16th Jul)3.5ft (1.0m) 10s
Most Powerful 6AM (Thu 16th Jul)3.5ft (1.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let's have a look at what's on offer for the local stretch.

There's a bit of a flat spell ahead, but we've got a few windows of clean, fun waves if you time it right. The first surf worth mentioning kicks off Wednesday morning, July 15th. The water is sitting at 64°, which is a bit nippier than usual for this time of year, so a good wetsuit is the call.

For the best bet in the near term, look no further than Prainha on Wednesday morning, July 15th. Glassy conditions with a light NW breeze at 3 mph, and an ESE swell of 3 ft churning in with a moderate 10-second period and good energy (204). It's an exposed spot, so it'll be catching that energy. With the wind being glassy, the waves are going to be clean and lined up. The water's a bit colder than normal, but that's a small price to pay for the conditions on offer. Just keep in mind it's an advanced spot and can get crowded sometimes, so expect some company.

Thursday morning, July 16th, is also a solid shout. The wind goes offshore from the WSW at 3 mph, cleaning up a 3 ft, 10-second easterly swell (212 energy). That's a proper clean session.

Friday morning, July 17th, we see the swell period drop to 8 seconds. The waves will be there at 3 ft, and the morning is glassy again, but the quality is ordinary. The surf will be a bit weak and crumbly, not the same punch as the previous days.

From Saturday the 18th through to Monday the 27th, the forecast gets pretty ordinary. Most mornings are glassy, but the swell is small and weak, with energy readings dropping well below 100 at times. There are a few moments of surfable but very ordinary waves, with the best being the glassy mornings of Sunday the 19th and Monday the 20th, offering 3 ft easterly swell. It's not going to be great, but if you're desperate, you could get a few small ones.

Then, on the afternoon of Monday, July 27th, things get interesting. We get a jump in the swell to 6 ft from the SSE, with a short 7-second period. The wind is cross-offshore from the SSW at 9 mph, and the energy jumps to a strong 540. The model says "expect very good surf conditions." This is a bigger, punchy, short-period swell that will be powerful. Given the size, this is only for experienced surfers. The wind is clean, so it should be a fun, powerful session for the crew that can handle it. This is the standout event of the whole 16-day window.

The final morning worth looking at is Thursday, July 30th. The wind goes glassy from the SW with a 4 ft, 8-second easterly swell and moderate energy (248). That's a solid, clean morning session to wrap things up.

So, to sum it up: the next few days are the cleanest, with Wednesday and Thursday mornings being the pick. After a long flat period, the afternoon of Monday, July 27th, offers a burst of powerful, clean swell for the experts. But don't hold your breath for much else.

Rusty signing off.

Short Range Forecast

Mostly dry. Warm (max 21°C on Sat morning, min 14°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Sat afternoon, min 18°C on Sat night). Wind will be generally light.

Wed
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
2
2
0
0
1
0
0
0
0
0
1
0
1
1
0
0
0
0
1
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)
1
ESE
10
1
ESE
10
1
E
10
0.7
ESE
10
0.6
ESE
10
0.9
E
8
1
E
8
0.3
ESE
10
1.1
E
8
1.1
E
8
1.1
E
8
1
E
8
0.1
S
13
1.1
E
8
1
E
8
0.9
E
8
0.1
S
11
0.8
E
8
0.8
E
8
0.7
E
8
0.7
E
8
Wave Graph
Metric surfscale
Energy kJ
190
214
212
92
73
97
132
21
157
173
169
124
3
169
133
105
2
82
80
63
61
Wind (km/h)
15
NE
10
NW
5
WSW
10
NE
10
N
5
W
10
NE
5
NNW
10
N
10
NE
10
N
5
N
10
NE
5
NNW
0
WNW
15
SSE
10
SSW
5
NNW
10
NNE
0
NE
5
WNW
Wind State
on
cross-off
off
on
cross
glassy
on
cross
cross
on
cross-on
glassy
on
glassy
glassy
cross
cross-off
cross
cross-on
glassy
glassy
High Tide
4:11PM1.31m
3:50AM1.19m
4:49PM1.23m
4:28AM1.21m
5:26PM1.15m
5:07AM1.19m
6:03PM1.07m
5:50AM1.14m
6:40PM1.00m
6:40AM1.07m
7:21PM0.93m
7:41AM0.99m
8:11PM0.88m
8:54AM0.93m
Low Tide
9:10PM0.57m
9:25AM0.05m
9:24PM0.54m
9:56AM0.09m
9:50PM0.50m
10:28AM0.16m
10:24PM0.46m
11:02AM0.25m
11:02PM0.44m
11:39AM0.36m
11:46PM0.44m
12:20PM0.48m
00:39AM0.47m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
7:00
6:58
6:58
6:58
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:38
5:39
5:39
5:40
5:40
5:42
5:42
 mm
Temp °C
17
16
16
16
16
17
18
19
21
24
22
20
23
21
21
20
19
21
22
24
24
Feels °C
16
15
16
15
15
17
18
18
20
23
20
19
23
19
19
19
19
20
21
24
24
  • 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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