Prainha Surf Break

Lat Long: 26.23° S 48.50° W

Prainha Surf Forecast and Surf Report

Issued: 2 pm 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
19.8° C
1.5° 

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


Prainha surf forecast from 7 Aug 2026:

  • Best quality surf: Thursday 13 Aug, 9AM (local time) - 3.5ft (1.1m), 6s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 6PM (local time) - 3.5ft (1.1m), 13s period, SE swell with 392 kJ wave energy.
  • Next surfable swell (1★+): Saturday 8 Aug, 9PM (local time) - 1.5ft (0.5m), 15s 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 Saturday (Aug 08) at 9PM. The primary swell is predicted to be 0.5m and 15s period with a secondary swell of 0.7m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Prainha in the next 16 days are 1.1m 13s and forecast to arrive on Monday (Aug 10) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Saturday (Aug 08) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 8th Aug)1.5ft (0.5m) 15s
Best Surf 9AM (Thu 13th Aug)3.5ft (1.1m) 6s
Most Powerful 6PM (Mon 10th Aug)3.5ft (1.1m) 13s

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


The Lowdown

Alright, let’s take a look at what Prainha has lined up for us over the next couple of weeks.

Straight up, there’s not a lot of good news for the first little while. The early part of the outlook is pretty ordinary, with small, messy swell and wind issues keeping things quiet for a stretch. The water temp is sitting at 68°F, which is a touch warmer than normal for this time of year, so that’s nice if you’re just floating, but for real surfing, the first week or so is a write-off.

We’ve got a run of days from the 7th of August right through to the 12th where the swell is tiny, often under 2 ft, and the wind is cross or cross-onshore. It’s choppy and weak. The combined swell energy is low, mostly under 150, so not much to get excited about.

Then Thursday the 13th morning shows a little light. The swell picks up a bit to 4 ft from the ENE, with a short period of 6 seconds, and light NW winds make for clean conditions. Combined energy jumps to 225, which is moderate. It’s still not perfect, but it’s the first real chance for a surf.

Friday the 14th morning is glassy, with the swell from the SE at 2 ft and a period of 14 seconds, but the energy is only 154. It’s clean, but small. Still, that glassy surface is a treat.

The real standout window comes around Monday the 17th afternoon and into Tuesday the 18th. On the 17th afternoon, we’ve got a 6 ft swell from the east with a short 7 second period, but the combined energy hits 531 – that’s strong. The wind is light and variable, so it’s rideable but a little cross-on. It’s not the cleanest, but there’s power.

Tuesday the 18th is where it’s at. Morning sees 5 ft from the east with a moderate 8 second period, and a solid SW offshore wind of 12 mph. That’s clean, lined-up surf. Combined energy is 276. Then the afternoon holds 4 ft, similar direction, with light SSW winds. Both sessions look solid. The offshore wind on Tuesday morning is the best we’ll see for a clean, punchy wave.

After that, Wednesday the 19th drops back to 3 ft and the wind turns onshore or cross-off, so it fades fast. The rest of the outlook into the 22nd has small, inconsistent swell and mostly poor conditions.

Overall, the pick is Tuesday the 18th. The swell direction from the east works well for Prainha’s optimum from the south, and with moderate offshore wind in the morning, it’ll be the best quality wave of the whole period. It’s a fairly consistent break, but you might still see a few others out. If you can only paddle out once, make it that Tuesday morning.

– Rusty

Short Range Forecast

Heavy rain (total 22mm), heaviest during Sun morning. Very mild (max 18°C on Sat afternoon, min 13°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 18°C on Thu morning, min 13°C on Tue morning). Wind will be generally light.

Fri
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
1
0
0
0
0
0
1
1
1
1
0
1
1
2
1
2
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
E
8
0.9
SE
10
0.4
SE
14
0.4
SE
16
0.5
SE
14
0.4
SE
14
0.9
SSE
5
1.3
SE
6
1.1
SE
5
0.5
SE
14
1.3
SSE
6
0.5
SE
12
0.5
SE
13
0.7
SE
12
0.7
SE
12
0.6
SE
12
0.5
SE
12
1.1
ENE
6
0.7
SE
15
0.7
SE
16
Wave Graph
Metric surfscale
Energy kJ
42
139
50
88
93
69
49
108
74
89
132
77
82
146
153
122
72
79
227
245
Wind (km/h)
25
SSE
15
ESE
20
NNE
15
NNE
10
SW
20
SSE
25
SSE
25
SSE
25
S
20
S
15
SSE
5
SSW
10
SSW
10
SW
15
SW
10
SSW
5
WSW
5
NW
10
E
5
NW
Wind State
cross
cross-on
cross-on
cross-on
cross-off
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-on
cross-off
High Tide
10:59PM0.84m
12:00PM1.14m
00:04AM0.91m
1:02PM1.25m
00:55AM1.01m
1:50PM1.33m
1:38AM1.12m
2:31PM1.37m
2:16AM1.22m
3:08PM1.36m
2:52AM1.29m
3:42PM1.32m
Low Tide
7:02PM0.49m
6:42AM0.39m
7:49PM0.43m
7:22AM0.26m
8:27PM0.42m
7:54AM0.15m
8:56PM0.43m
8:20AM0.06m
9:12PM0.47m
8:37AM0.01m
8:59PM0.49m
8:52AM-0.00m
8:49PM0.45m
rain showers
cloud
cloud
rain showers
rain showers
light rain
light rain
light rain
light rain
cloud
cloud
cloud
light rain
cloud
cloud
cloud
light rain
part cloud
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:48
6:47
6:46
6:45
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:50
5:51
5:51
5:52
5:52
5:52
 mm
1
1
7
5
3
4
1
1
1
1
5
Temp °C
17
16
17
18
18
16
14
15
14
14
15
14
13
13
14
15
15
18
18
19
Feels °C
13
13
15
17
20
13
10
12
10
10
12
13
12
12
13
15
15
19
18
21
  • 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