Barra de Guaratiba Surf Break

Lat Long: 23.06° S 43.57° W

Barra de Guaratiba Surf Forecast and Surf Report

Issued: 8 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Barra de Guaratiba sea temperature is
22.9° C
1.6° 

Barra de Guaratiba surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Barra de Guaratiba surf forecast from 18 Aug 2026:

  • Best quality surf: Monday 24 Aug, 6PM (local time) - 8ft (2.5m), 14s period, S swell with cross-offshore winds.
  • Most powerful swell: Tuesday 25 Aug, 12AM (local time) - 10ft (3.0m), 14s period, S swell with 2,876 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 6AM (local time) - 6ft (1.8m), 10s period with SSW swell.

Best Forecast Surf Conditions for Barra de Guaratiba this week:

The surf forecast for Barra de Guaratiba over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 6AM. The primary swell is predicted to be 1.8m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Barra de Guaratiba in the next 16 days are 3.0m 14s and forecast to arrive on Tuesday (Aug 25) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Friday (Aug 21) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sun 23rd Aug)6ft (1.8m) 10s
Best Surf 6PM (Mon 24th Aug)8ft (2.5m) 14s
Most Powerful12AM (Tue 25th Aug)10ft (3.0m) 14s

Table - best surf conditions forecast for Barra de Guaratiba over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 30°C on Wed morning, min 20°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 32°C on Fri morning, min 18°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
2
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
10
0.5
S
10
0.4
SSE
10
0.3
S
9
0.2
S
9
0.1
S
10
0.1
SE
13
0.1
SE
12
0.2
S
12
0.4
SSW
11
0.5
S
9
0.7
SSW
9
1.4
SSW
7
1.3
SSW
7
1.9
SSW
10
1.7
SSW
10
1.9
SSW
10
1.6
SSW
10
2
S
11
Wave Graph
Metric surfscale
Energy kJ
102
50
31
15
7
3
6
6
11
37
45
70
170
169
754
528
657
492
969
Wind (km/h)
15
NNE
15
NNE
15
ESE
10
NNW
10
NNE
15
ESE
5
N
5
NNW
15
ESE
10
NNE
20
N
25
SSW
15
SW
15
SW
15
SSW
10
S
10
ESE
15
ESE
15
ESE
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
off
cross-off
on
on
on
cross-on
cross-on
cross-off
cross-off
cross-off
High Tide
5:33AM1.01m
5:38PM0.91m
6:16AM0.89m
6:07PM0.84m
7:18AM0.78m
6:43PM0.75m
12:12PM0.76m
8:16PM0.68m
12:52PM0.85m
11:53PM0.73m
1:21PM0.94m
00:41AM0.84m
Low Tide
11:50PM0.33m
12:22PM0.42m
00:24AM0.35m
1:00PM0.53m
1:22AM0.40m
2:29PM0.63m
3:06AM0.43m
5:00PM0.64m
4:59AM0.39m
6:32PM0.56m
6:14AM0.30m
7:11PM0.48m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
part cloud
rain showers
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:16
6:15
6:15
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:38
5:38
5:39
5:39
5:39
 mm
1
2
4
Temp °C
23
28
26
24
30
27
24
26
24
23
32
25
21
20
20
19
19
18
18
Feels °C
23
28
25
26
30
26
25
26
24
23
30
23
20
19
18
18
19
17
17
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Barra de Guaratiba Surf forecast

The above surf forecast table for Barra de Guaratiba provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Barra de Guaratiba can be found by selecting the local surf guide option on the grey menu. Our Barra de Guaratiba 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 (Barra de Guaratiba) 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 Barra de Guaratiba 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.

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