Prainha Surf Break

Lat Long: 27.37° S 48.53° W

Prainha 48 hour detailed Surf Forecast

Issued: 2 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
18.3°C
1.1° 

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 (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 10ft (3.0m), 9s period with NE swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 10ft (3.0m), 9s period with ENE swell.
  • Evening surf: Evening surf (20 Sep, local time) - 8ft (2.4m), 9s period with ENE swell.

The current surf forecast for Prainha at 6AM is: 3.0m 8s primary swell from a Northeast direction and 0.3m 11s secondary swell from a South-southeast direction (forecast issued at 02:00am September 20). The wind direction is predicted to be cross-onshore.

Time (-03) & DateWave HeightWave Period
Morning (20 Sep)10ft (3.0m)9s
Afternoon (20 Sep)10ft (3.0m)9s
Evening (20 Sep)8ft (2.4m)9s

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


Short Range Forecast

Heavy rain (total 26mm), heaviest during Mon night. Warm (max 26°C on Mon morning, min 12°C on Tue night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
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
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
0
0
0
!
!
!
2
2
2
0
2
2
2
2
3
2
2
2
2
0
0
2
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
NE
8
2.5
NE
8
3
NE
8
3
NE
9
3
ENE
9
3
ENE
9
2.5
ENE
9
2.4
ENE
9
2.2
ENE
9
2.2
ENE
9
2.1
ENE
9
2
ENE
9
1.9
ENE
9
1.8
ENE
9
1.8
ENE
9
1.7
ENE
9
1.5
ENE
9
1.4
ENE
9
1.3
ENE
8
1.1
ENE
8
1
ENE
8
1.8
S
6
1.9
S
6
2.2
S
7
Wave Graph
Metric surfscale
Energy kJ
803
952
1065
1292
1542
1338
1065
933
812
766
716
615
536
513
513
454
336
281
221
176
147
251
297
447
Wind (km/h)
25
NNE
30
NNE
25
N
20
N
15
NNE
15
NNE
10
N
10
N
5
N
15
N
10
NNW
5
NW
15
SE
15
S
10
SSW
10
SSW
10
SW
15
S
15
SSE
15
S
15
SSE
15
SSE
15
SSE
15
S
Wind State
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
12:12PM0.73m
10:57PM0.58m
12:20PM0.81m
11:34PM0.69m
12:38PM0.88m
Low Tide
4:13AM0.32m
5:56PM0.46m
5:12AM0.23m
6:12PM0.39m
5:54AM0.14m
6:35PM0.33m
mod rain
heavy rain
light rain
cloud
cloud
thunderstorm
part cloud
part cloud
clear
clear
clear
clear
clear
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:08
6:08
6:09
 mm
7
11
3
1
2
1
1
4
1
2
1
2
2
2
1
Temp °C
18
19
19
19
21
21
19
19
19
19
19
24
26
21
20
20
20
17
16
14
13
13
13
13
Feels °C
16
17
17
19
22
22
20
21
21
19
20
27
26
21
22
22
21
17
15
11
10
11
10
10
  • 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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