Barra do Una Surf Break

Lat Long: 24.43° S 47.04° W

Barra do Una Surf Forecast and Surf Report

Issued: 8 am 05 Aug 2026 (local time)

Forecast update in  hr  min

Today's Barra do Una sea temperature is
20.3° C
1.3° 

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


Barra do Una surf forecast from 5 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 6AM (local time) - 5ft (1.5m), 11s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Saturday 8 Aug, 9AM (local time) - 5.5ft (1.7m), 13s period, SSE swell with 946 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 3PM (local time) - 2ft (0.6m), 11s period with SSE swell.

Best Forecast Surf Conditions for Barra do Una this week:

The surf forecast for Barra do Una over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 05) at 3PM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.5m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Barra do Una in the next 16 days are 1.7m 13s and forecast to arrive on Saturday (Aug 08) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Aug 12) at 12PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Wed 5th Aug)2ft (0.6m) 11s
Best Surf 6AM (Sat 8th Aug)5ft (1.5m) 11s
Most Powerful 9AM (Sat 8th Aug)5.5ft (1.7m) 13s

Table - best surf conditions forecast for Barra do Una over the next 16 days.


Short Range Forecast

Moderate rain (total 11mm), heaviest on Fri night. Warm (max 30°C on Fri morning, min 19°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 20mm), heaviest during Mon afternoon. Warm (max 21°C on Sat morning, min 16°C on Mon night). Wind will be generally light.

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
1
1
2
0
0
0
3
3
2
0
0
2
1
1
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SSE
11
0.6
SSE
11
0.5
SSE
10
0.6
E
8
0.6
E
8
1.2
ENE
8
0.7
E
8
0.5
E
7
0.7
SE
8
1.7
SSE
13
1.3
S
13
1.2
SSE
14
1.1
SSE
13
0.9
SSE
12
1.3
SSE
12
1.3
SSE
11
1.4
SSE
12
1.6
S
13
1.4
SSE
7
1.3
SSE
7
1.6
SSE
13
Wave Graph
Metric surfscale
Energy kJ
97
91
58
42
43
178
55
28
60
946
591
563
424
252
486
387
514
875
170
172
848
Wind (km/h)
0
ENE
5
E
5
W
5
NW
5
ENE
10
N
10
W
15
SW
5
ESE
10
NE
10
E
5
SW
15
SW
20
S
10
S
10
S
15
S
20
S
15
SSE
15
S
15
SE
Wind State
glassy
cross-off
cross-on
glassy
glassy
cross-off
cross
cross-on
cross
off
cross-off
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
High Tide
7:16PM0.94m
8:04AM1.00m
8:26PM0.82m
10:03AM0.97m
10:12PM0.78m
12:45PM1.09m
11:57PM0.86m
1:27PM1.22m
00:50AM0.98m
2:00PM1.31m
1:28AM1.12m
2:30PM1.36m
2:02AM1.24m
Low Tide
11:58AM0.55m
11:51PM0.53m
4:44PM0.62m
00:45AM0.61m
4:49AM0.53m
6:13PM0.56m
6:02AM0.39m
7:12PM0.48m
6:56AM0.24m
7:56PM0.43m
7:40AM0.11m
8:30PM0.42m
8:18AM0.01m
8:57PM0.42m
clear
cloud
part cloud
clear
part cloud
part cloud
cloud
light rain
mod rain
rain showers
clear
rain showers
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:41
6:39
6:39
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:46
5:46
5:46
5:47
5:47
 mm
2
9
1
1
2
2
2
2
3
7
2
2
1
Temp °C
24
22
22
27
27
24
30
24
19
21
21
21
20
19
18
18
18
17
16
16
17
Feels °C
24
22
21
27
27
22
27
23
21
22
22
23
20
18
18
19
18
15
14
14
15
  • 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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Information about the Barra do Una Surf forecast

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

Barra do Una is 13 km (8 miles) from the city of Peruibe. If you plan a holiday in São Paulo, look for hotels and other accommodation in Peruibe. Peruibe has rooms for a wide range of budgets as well as car hire and transport links.

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