Backdoor Surf Forecast

/ Rio de Janeiro (47 surf breaks) /

Brazil (447 surf breaks)

Surf Forecasts:

Backdoor surfForecast / Rio de Janeiro / Brazil

48hr Weather and Surf, issued 8 pm Friday 31 Oct 2025 -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 23.1° C
(Which is normal for this time of year)

How big are the waves at Backdoor today?

The current surf forecast for Backdoor at 11PM is: 1.4m 9s primary swell from a South direction and 0.6m 10s secondary swell from a East direction, 0.6m 3s secondary swell from a East direction (forecast issued at 08:00pm October 31). The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (-03) & Date	Wave Height	Wave Period
Morning (31 Oct)	-	-
Afternoon (31 Oct)	-	-
Evening (31 Oct)	4.5ft (1.4m)	9s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Fri 31		Saturday 01								Sunday 02								Monday 03
	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM
Rating (10 max)	2	2	2	2	2	2	0	0	0	1	1	2	0	2	1	0	2	1	0	2	2	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	S	S	S	S	ESE	S	S	S	S	S	SSE	S	E	E	E	E	E	E	E	E	E
Period(s) (?)	10	9	9	9	9	9	9	10	8	8	10	10	11	10	10	6	7	7	8	8	8	8	8	8
Wave Graph (?)
kJ (?)	415	341	320	270	230	230	150	197	113	113	122	96	82	77	74	94	274	210	137	148	156	107	90	68
Wind (km/h)	ESE	ENE	NE	ENE	ENE	ENE	ESE	E	ENE	ENE	ENE	ENE	NE	ENE	ENE	E	SSW	NE	NE	NE	NNW	WSW	S	SSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	on	cross- off	cross- off	cross- off	off	glass	on	on
High Tide / height (m)			11:21PM 0.86					12:27PM 1.01				12:05AM 0.96				12:59PM 1.03				12:46AM 1.05				1:27PM 1.02
Low Tide / height (m)	5:13PM 0.38				5:26AM 0.10				5:59PM 0.31					6:16AM 0.04				6:40PM 0.23				7:03AM 0.02

	Fri 31		Saturday 01								Sunday 02								Monday 03
Sunrise	-	-	-	-	5:03	-	-	-	-	-	-	-	5:03	-	-	-	-	-	-	-	5:03	-	-	-
Sunset	6:00	-	-	-	-	-	-	-	6:01	-	-	-	-	-	-	-	6:01	-	-	-	-	-	-	-

Rain (mm)	1	1	-	-	-	-	-	-	-	-	-	-	-	-	-	1	12	24	-	-	-	-	-	1
Temp. °C	20	20	20	19	19	23	24	24	22	22	21	21	21	25	28	27	22	22	22	22	22	24	24	23
Feels °C (?)	21	21	21	20	20	24	22	23	21	22	21	22	22	26	29	27	25	23	23	24	25	27	25	25

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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