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Surf Forecasts:

Praia Seca surfForecast / Rio de Janeiro / Brazil

information circle12 Day Weather and Surf, issued 8 am Wednesday 20 Aug 2025 -03
Forecast update in hr  min  s Forecast update imminent
Praia Seca surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Praia Seca sea temperature is
21.1° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Praia Seca this week:

The surf forecast for Praia Seca over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 25) at 3AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Praia Seca in the next 12 days are 2.1m 11s and forecast to arrive on Wednesday (Aug 27) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Thursday (Aug 21) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 25th Aug)4.5ft (1.3m) 9s
Best Surf 6AM (Mon 25th Aug)5ft (1.6m) 9s
Most Powerful 3AM (Wed 27th Aug)7ft (2.1m) 11s

Table - best surf conditions forecast for Praia Seca over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
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Short Range Forecast Mostly dry. Warm (max 27°C on Thu morning, min 18°C on Wed night). Winds increasing (moderate winds from the ENE on Thu morning, strong winds from the ENE by Fri afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 28°C on Sat morning, min 19°C on Sat night). Winds decreasing (strong winds from the ENE on Sat afternoon, calm by Mon morning).

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
3
0
3
2
0
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
S
0.8
S
0.6
S
1
ENE
1.3
ENE
1.4
ENE
1.2
ENE
1.8
ENE
1.6
ENE
1.4
ENE
1.7
E
1.5
ENE
1.2
E
1.5
WSW
0.7
SW
1.6
SW
1.6
SSW
1.7
SSW
1.6
SSW
1.5
SSW
1.5
SSW
Period(s) (?)10101076776787886109912121211
Wave
Graph
(?)Metric surfscale
Energy (?)21013079149175203155287243268340254204253137517503920771654592
Wind
(km/h)
40
NE
35
ENE
40
NE
25
NE
30
ENE
30
NE
35
NE
45
ENE
45
NE
35
NE
40
ENE
30
NE
15
W
40
WSW
20
WNW
0
SE
25
ESE
15
NE
10
SW
20
SSW
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
off		glasscross-
on		cross-
off		cross-
on		cross-
on		cross
High Tide
/ height (m)
1:53PM
1.01
1:03AM
0.88
2:21PM
1.03
1:35AM
0.97
2:46PM
1.03
2:06AM
1.04
3:08PM
1.02
2:36AM
1.09
3:28PM
1.00
3:07AM
1.10
3:48PM
0.98
3:37AM
1.08
4:07PM
0.94
Low Tide
/ height (m)
7:28PM
0.40
7:28AM
0.01
7:59PM
0.36
8:08AM
-0.03
8:28PM
0.32
8:44AM
-0.04
8:56PM
0.28
9:17AM
-0.02
9:23PM
0.26
9:48AM
0.03
9:51PM
0.24
10:18AM
0.11
10:21PM
0.23
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tuesday
26
Sunrise6:09--6:09--6:07--6:07--6:07--6:05--6:05--
Sunset-5:34--5:35--5:35--5:35--5:36--5:36--5:36-
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
rain showers
Rain (mm)
--------------------1
Temp. °C242420272621262520282621232020222221222120
Feels °C (?)181915242218211913232019221517212020232021
  • 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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Eyeball surf reportRecent Eyeball Surf Reports for Rio de Janeiro

  1. weather stationWind Update The wind is still cross-off at Praia Seca (fresh winds from the NE at Cabo Frio Cape Airport 20 km from Praia Seca). 1.5m 5s windswell from the ENE with a 1.0m 10s swell from the S. 2 swells combining to make bigger set waves.

    2 hours 21 minutes ago Praia Seca
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20 km away, 2 h 21 min ago

31 km/h
NE
0.0
21.1
Air / Water (°C)
Please reload the page to see if there are any updates.

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 Praia Seca 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.

View detailed surf forecast for Praia Seca at:
surf-forecast.com

Information about the Praia Seca Surf forecast

The above surf forecast table for Praia Seca provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia Seca can be found by selecting the local surf guide option on the grey menu. Our Praia Seca 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 (Praia Seca) 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 Praia Seca 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.

Praia Seca is 10 km (6 miles) from the city of Araruama. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Araruama. Araruama has rooms for a wide range of budgets as well as car hire and transport links.

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