Surf Break

Lat Long: 27.37° S 48.53° W

Prainha 48 hour detailed Surf Forecast

Issued: 8 pm 20 Oct 2026 (local time)

Forecast update in  hr  min

Today's Prainha sea temperature is
20.4°C
0.6° 

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 (21 Oct):

  • Morning surf: Morning surf (21 Oct, local time) - 4.5ft (1.4m), 11s period with SE swell.
  • Afternoon surf: Afternoon surf (21 Oct, local time) - 4.5ft (1.4m), 11s period with SE swell.
  • Evening surf: Evening surf (21 Oct, local time) - 4.5ft (1.3m), 10s period with SSE swell.

The current surf forecast for Prainha at 4AM is: 1.4m 11s primary swell from a Southeast direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm October 20). The wind direction is predicted to be offshore and the swell rating is 3.

Time (-03) & DateWave HeightWave Period
Morning (21 Oct)4.5ft (1.4m)11s
Afternoon (21 Oct)4.5ft (1.4m)11s
Evening (21 Oct)4.5ft (1.3m)10s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Thu night. Warm (max 24°C on Fri afternoon, min 16°C on Tue night). Wind will be generally light.

Tue
20
Wednesday
21
Thursday
22
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
2
2
3
3
3
1
1
2
1
1
1
1
0
0
1
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)
1.5
SSE
10
1.5
SSE
10
1.4
SSE
10
1.4
SE
11
1.4
SE
11
1.4
SE
11
1.4
SE
11
1.4
SE
11
1.3
SSE
10
1.3
SSE
10
1.3
SSE
10
1.2
SE
10
1.2
SE
10
1.3
SE
10
1.3
SE
10
1.3
SE
11
1.3
SE
11
1.3
SE
12
Wave Graph
Metric surfscale
Energy kJ
427
427
401
467
476
476
467
458
361
347
347
304
304
335
341
361
391
427
Wind (km/h)
10
SE
5
SSE
5
SW
5
SW
5
SW
5
SSE
5
ENE
10
ENE
5
NE
10
NE
10
NE
10
NNE
10
NNE
10
NE
15
ENE
15
NE
10
NE
10
NE
Wind State
cross
glassy
glassy
off
glassy
glassy
cross-on
on
glassy
on
on
on
on
on
on
on
on
on
High Tide
10:47PM0.70m
11:58AM0.86m
11:28PM0.80m
12:22PM0.91m
Low Tide
5:21PM0.40m
5:14AM0.15m
5:54PM0.32m
5:56AM0.08m
6:26PM0.26m
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
light rain
rain showers
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>
—
—
—
5:31
—
—
—
—
—
—
—
5:31
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:23
—
—
—
—
—
—
—
6:24
—
—
—
—
—
—
—
6:24
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 mm
—
—
—
—
—
—
—
—
—
—
1
1
1
1
2
2
2
3
Temp °C
17
17
16
16
16
17
18
19
19
19
19
18
18
19
18
19
19
19
Feels °C
16
17
16
15
16
17
18
19
20
20
19
18
19
20
18
19
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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