Prainha Surf Break

Lat Long: 27.37° S 48.53° W

Prainha 48 hour detailed Surf Forecast

Issued: 8 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
18.3° C
0.3° 

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


How big are the waves at Prainha today (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 5ft (1.6m), 8s period with ENE swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 5.5ft (1.7m), 8s period with ENE swell.
  • Evening surf: Evening surf (18 Aug, local time) - 5ft (1.5m), 8s period with ENE swell.

The current surf forecast for Prainha at 4AM is: 1.7m 8s primary swell from a East-northeast direction and 0.2m 10s secondary swell from a South-southeast direction (forecast issued at 08:00pm August 17). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (18 Aug)5ft (1.6m)8s
Afternoon (18 Aug)5.5ft (1.7m)8s
Evening (18 Aug)5ft (1.5m)8s

Table - waves today at Prainha. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 27°C on Tue afternoon, min 18°C on Mon night). Wind will be generally light.

Mon
17
Tuesday
18
Wednesday
19
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
1
0
0
0
1
1
0
0
1
2
2
2
2
1
0
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
ENE
9
1.7
ENE
8
1.7
ENE
8
1.7
ENE
8
1.7
ENE
8
1.6
ENE
8
1.5
ENE
8
1.7
ENE
8
1.7
ENE
8
1.5
ENE
8
1.4
ENE
8
1.4
ENE
8
1.3
ENE
8
1.2
ENE
8
1.2
ENE
8
1.1
ENE
8
0.9
ENE
8
0.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
512
432
370
361
352
344
306
370
388
329
268
256
217
172
163
135
102
102
Wind (km/h)
15
N
10
N
10
N
10
NNW
10
NNW
10
NNW
10
NNE
15
NNE
10
N
0
SW
0
E
5
SSE
5
SSW
0
SSE
15
SE
15
SSE
10
S
5
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
glassy
glassy
cross-off
glassy
glassy
cross
cross-off
cross-off
off
High Tide
4:31PM0.74m
4:50AM0.80m
4:51PM0.70m
5:35AM0.71m
5:10PM0.65m
Low Tide
9:38PM0.28m
10:05AM0.37m
10:09PM0.28m
10:17AM0.45m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:53
 mm
Temp °C
19
18
18
18
18
20
26
27
24
23
21
19
18
20
21
22
19
18
Feels °C
20
19
19
19
19
21
27
28
25
26
24
20
20
23
21
22
20
20
  • 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 

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.


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