Barra do Una Surf Break

Lat Long: 24.43° S 47.04° W

Barra do Una Surf Forecast and Surf Report

Issued: 2 pm 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Barra do Una sea temperature is
19.9° C
0.4° 

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 10 Jul 2026:

  • Best quality surf: Friday 10 Jul, 9PM (local time) - 2ft (0.6m), 14s period, SE swell with glassy winds.
  • Most powerful swell: Monday 13 Jul, 6AM (local time) - 6ft (1.9m), 8s period, S swell with 464 kJ wave energy.
  • Next surfable swell (1★+): Friday 10 Jul, 12AM (local time) - 1.5ft (0.5m), 10s period with SE 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 Friday (Jul 10) at 12AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Barra do Una in the next 16 days are 1.9m 8s and forecast to arrive on Monday (Jul 13) at 6AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Jul 15) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 10th Jul)1.5ft (0.5m) 10s
Best Surf 9PM (Fri 10th Jul)2ft (0.6m) 14s
Most Powerful 6AM (Mon 13th Jul)6ft (1.9m) 8s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Sat night. Warm (max 22°C on Fri morning, min 15°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Sun night. Warm (max 20°C on Sun afternoon, min 14°C on Tue night). Wind will be generally light.

Thu
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
1
1
1
0
2
2
2
2
0
0
1
0
0
1
1
2
1
0
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
10
0.5
SE
10
0.6
SE
14
0.7
SE
13
0.8
SE
14
1
SE
13
1
SE
13
0.9
SE
13
0.8
SE
12
0.7
SE
12
1.1
SSE
9
1.7
S
8
1.4
SSE
9
1.2
SSE
9
1.2
SSE
9
1.1
SSE
9
1
SSE
10
1
SE
9
0.8
SSE
9
0.7
SE
9
0.6
SE
9
Wave Graph
Metric surfscale
Energy kJ
65
49
128
168
265
335
330
277
210
148
197
381
268
208
237
201
175
170
108
83
65
Wind (km/h)
10
E
10
N
5
NNW
5
E
10
WSW
0
NE
15
ENE
0
SE
5
NNW
15
SW
10
SSW
10
SSW
10
S
10
SSE
5
SE
10
SE
5
NNE
5
W
10
ESE
5
N
5
SSW
Wind State
cross-off
off
glassy
cross-off
cross-on
glassy
cross-off
glassy
cross-off
on
on
on
on
cross-on
cross
cross
off
glassy
cross
cross-off
glassy
High Tide
10:46PM0.91m
11:50AM1.12m
00:00AM0.93m
1:04PM1.23m
00:54AM0.99m
1:56PM1.32m
1:37AM1.06m
2:39PM1.36m
2:15AM1.14m
3:17PM1.36m
2:50AM1.21m
3:52PM1.32m
3:26AM1.27m
Low Tide
5:56PM0.45m
6:04AM0.39m
7:03PM0.42m
6:57AM0.28m
7:58PM0.40m
7:44AM0.17m
8:44PM0.41m
8:26AM0.08m
9:23PM0.44m
9:04AM0.03m
9:52PM0.50m
9:38AM0.02m
10:10PM0.54m
10:08AM0.05m
clear
clear
clear
clear
part cloud
clear
clear
rain showers
light rain
part cloud
light rain
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:52
6:50
6:50
6:50
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:34
5:35
5:35
5:36
5:36
5:36
5:37
 mm
7
1
4
2
1
Temp °C
18
16
22
21
18
20
21
19
19
20
18
18
18
17
18
18
16
17
17
16
20
Feels °C
18
15
22
21
18
19
20
20
18
20
17
17
16
15
17
17
14
17
16
16
20
  • 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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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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