Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 2 pm 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
18.0° C
0.7° 

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


Prainha surf forecast from 10 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 12AM (local time) - 4ft (1.2m), 8s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Sunday 12 Jul, 9PM (local time) - 6.5ft (2.0m), 8s period, SSE swell with 554 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 9PM (local time) - 2.5ft (0.8m), 14s 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 Friday (Jul 10) at 9PM. The primary swell is predicted to be 0.8m and 14s period with a secondary swell of 0.2m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 2.0m 8s and forecast to arrive on Sunday (Jul 12) 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 1.6m 8s period and expected on Friday (Jul 17) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 10th Jul)2.5ft (0.8m) 14s
Best Surf12AM (Tue 14th Jul)4ft (1.2m) 8s
Most Powerful 9PM (Sun 12th Jul)6.5ft (2.0m) 8s

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


Alright, grab a coffee and listen up, it’s Rusty.

We’ve got a pretty quiet run at Prainha comin’ up. The first week has a few windows where it’s worth paddlin’ out, but it ain’t gonna be the kind of swell that gets you out of bed before dawn. The real standout is Sunday morning, July 12th, with clean, glassy conditions and a clean little knee to waist-high ESE swell.

Friday the 10th is a washout with rain showers and a bumpy 2ft cross-shore swell. Forget it.

Saturday the 11th starts cloudy with a light cross breeze, but the afternoon is the real turnin’ point. Around lunchtime the wind drops to glass, the swell holds at 3ft from the ESE with 13 seconds of period. That’s clean, small, and fun. The water temp is about average for July at 64°, so it ain’t a shocker.

Sunday the 12th is your best bet early. Morning is glassy, 3ft from the ESE with 12 seconds of period, combined swell energy is moderate (223). It’s clean and invitin’ for a longboard or a fish. The afternoon picks up a cross-off breeze from the SSE, so still clean, but the wind gets up to 16 mph, so it’ll be a bit more work.

Monday the 13th sees a short period SSE bump at 6ft, but the period is only 8 seconds, so it’s a messy, choppy close-out. The combined energy jumps to 617, which is moderate to strong, but it’s wind-affected and not for beginners – that size and short period will be too much for anyone not ready for it.

Tuesday the 14th morning gets an offshore breeze from the WSW and a clean 4ft swell from the SE, 10-second period. That’s a decent window for a morning session before the wind swings onshore.

Wednesday the 15th is another glassy morning, 4ft from the ESE with 11 seconds. Nice long lines, clean conditions. A good option for intermediate crew.

After that, the second week drops off noticeably. From the 16th through to the 25th of July, the swell stays below 3ft most days, with periods droppin’ to 8 seconds or less. The combined energy drops into the double digits many times (55-110), so it’s weak and inconsistent. There are some glassy mornings, like the 17th and 19th, but the swell is just too small to get excited about. Flat spells look likely. If you’re a beginner, some of those small, glassy mornings on the 19th, 20th, or 21st might be fun for a soft-top, but don’t expect much push.

Truth is, the first week has a few golden hours, but the second week is a long stretch of barely surfable conditions. If you want the best, aim for Sunday the 12th morning or Wednesday the 15th morning.

Rusty.

Short Range Forecast

Heavy rain (total 21mm), heaviest during Fri night. Warm (max 21°C on Sun morning, min 15°C on Fri night). Winds increasing (calm on Fri night, fresh winds from the SSE by Sun afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Mon afternoon, min 13°C on Wed morning). Wind will be generally light.

Fri
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
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
1
2
2
2
1
1
1
1
3
2
1
2
2
0
2
2
0
0
2
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)
0.7
ESE
12
0.9
ESE
14
0.9
ESE
13
0.9
ESE
13
0.9
ESE
13
0.8
ESE
12
0.9
SE
12
2
SSE
8
1.7
SSE
8
1.4
SSE
8
1.2
SSE
8
1.2
SE
10
1.3
ESE
11
1.3
ESE
11
1.3
ESE
11
1.3
ESE
12
1.1
ESE
12
1
ESE
12
1
ESE
12
0.9
ESE
12
0.8
ESE
12
Wave Graph
Metric surfscale
Energy kJ
136
285
273
269
242
193
216
536
385
277
212
322
396
366
423
446
353
304
294
215
169
Wind (km/h)
15
SSE
5
WSW
10
N
5
E
10
S
5
SW
25
SSE
20
SSE
20
SSE
15
SSE
10
SSW
10
WSW
5
E
10
NNW
5
W
10
ENE
5
NW
5
NW
10
NE
15
N
5
WNW
Wind State
cross
off
cross
glassy
cross-off
glassy
cross-off
cross
cross
cross
cross-off
off
on
cross
glassy
on
cross-off
glassy
cross-on
cross-on
glassy
High Tide
00:18AM0.98m
1:02PM1.26m
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
Low Tide
7:38PM0.40m
7:11AM0.32m
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
rain showers
rain showers
rain showers
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
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
7:01
7:00
7:00
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:37
5:37
5:37
5:38
5:38
5:39
 mm
1
15
1
2
2
Temp °C
18
16
17
17
17
21
20
16
15
16
16
15
16
16
15
16
16
16
17
17
19
Feels °C
16
15
18
18
17
21
16
12
11
13
14
15
16
15
14
15
16
15
16
16
19
  • Map Icons:
  • Break
  • 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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