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Surf Forecasts:

Backdoor surfForecast / Rio de Janeiro / Brazil

information circle48hr Weather and Surf, issued 8 pm Monday 16 Mar 2026 -03
Forecast update in hr  min  s Forecast update imminent
Backdoor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoor sea temperature is
26.8° C
 (Which is normal for this time of year)

How big are the waves at Backdoor today?

The current surf forecast for Backdoor at 3AM is: 1.0m 10s primary swell from a South-southeast direction and 0.4m 10s secondary swell from a East-southeast direction (forecast issued at 08:00pm March 16). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (-03) & DateWave HeightWave Period
Morning (17 Mar)3.5ft (1.1m)10s
Afternoon (17 Mar)3.5ft (1.1m)10s
Evening (17 Mar)4ft (1.2m)10s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Mon
16
Tuesday
17
Wednesday
18
Thursday
19
6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM
Rating
(10 max)
1
1
2
2
2
2
1
0
1
2
2
2
2
2
1
0
0
2
2
2
2
2
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
SSE
1.1
SSE
0.9
SSE
1
SSE
0.9
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.2
SSE
1.1
SSE
1.2
SSE
1.2
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1.1
SSE
1
SSE
1
SSE
Period(s) (?)10101010101010101010101010101010109999999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)169237180183169223232240227281232286281218214210205197193193193188158158
Wind
(km/h)
20
E
15
ENE
15
NE
15
NE
10
NE
10
NE
15
ESE
20
ESE
15
E
15
ENE
10
NE
5
NNE
5
NNE
5
NNE
10
SSE
15
SSE
10
SE
5
ESE
5
ESE
5
ENE
5
N
0
NNE
10
S
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross-
off		cross-
off		offoffcross-
off		cross-
on		cross-
on		cross-
on		glassglassglassoffglassonon
High Tide
/ height (m)
2:14AM
1.08
1:49PM
1.07
2:39AM
1.09
2:18PM
1.13
3:02AM
1.06
2:49PM
1.15
Low Tide
/ height (m)
7:33PM
-0.02
7:55AM
0.23
8:12PM
-0.07
8:29AM
0.18
8:50PM
-0.07
9:02AM
0.15
Mon
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise----5:52-------5:52-------5:52---
Sunset6:04-------6:02-------6:02-------
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C242322222123262524232222222325252424232322232424
Feels °C (?)252423232224272525242425252527252526252624262525
  • 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

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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 Backdoor 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 Backdoor at:
surf-forecast.com

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