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Surf Forecasts:

Barra do Una surfForecast / São Paulo / Brazil

information circle12 Day Weather and Surf, issued 8 am Thursday 20 Nov 2025 -03
Forecast update in hr  min  s Forecast update imminent
Barra do Una surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Barra do Una sea temperature is
23.7° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Barra do Una this week:

The surf forecast for Barra do Una over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 21) at 3AM. The primary swell is predicted to be 1.3m and 14s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Barra do Una in the next 12 days are 1.6m 16s and forecast to arrive on Thursday (Nov 20) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Nov 21) at 12AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 21st Nov)4.5ft (1.3m) 14s
Best Surf 3AM (Fri 21st Nov)4.5ft (1.3m) 14s
Most Powerful 6PM (Thu 20th Nov)5ft (1.6m) 16s

Table - best surf conditions forecast for Barra do Una over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 23°C on Fri morning, min 18°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 96mm), heaviest during Mon night. Warm (max 22°C on Sun morning, min 19°C on Sun night). Wind will be generally light.

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
2
1
2
2
1
0
0
1
0
0
0
0
0
0
0
0
1
0
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SSE
0.9
SSE
1.4
SSE
1
S
0.8
SSE
0.6
S
0.5
S
0.5
S
0.4
SSE
0.6
SSE
1
S
1.1
SSE
1.3
SSE
2
SE
1.2
SE
1.6
SE
1.5
SE
1.3
SE
1.3
SE
1.2
SE
1.1
SE
Period(s) (?)817141312131212111111111077888999
Wave
Graph
(?)Metric surfscale
Energy kJ (?)184504822339198121757140102256314338389156335306250287230172
Wind
(km/h)
10
ESE
20
E
25
ENE
0
SSE
15
E
5
N
10
S
5
SSE
0
ESE
10
SW
20
SW
30
SE
15
SSE
15
S
15
SSE
15
SSW
15
S
10
S
10
S
15
SSE
15
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		glasscross-
off		glasscross-
on		cross-
on		glasscross-
on		oncrosscross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		oncross-
on		cross-
off
High Tide
/ height (m)
2:11PM
1.20
2:50AM
1.33
2:39PM
1.20
3:23AM
1.30
3:11PM
1.18
3:59AM
1.26
3:47PM
1.16
4:40AM
1.20
4:30PM
1.13
5:28AM
1.14
5:19PM
1.08
6:26AM
1.07
12:51PM
0.69
6:19PM
1.03
Low Tide
/ height (m)
8:21PM
0.09
8:50AM
0.37
8:47PM
0.09
9:14AM
0.42
9:14PM
0.12
9:38AM
0.47
9:45PM
0.18
10:03AM
0.53
10:21PM
0.25
10:34AM
0.61
11:11PM
0.34
11:29AM
0.69
1:08PM
0.69
1:45AM
0.41
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Sunrise5:11--5:11--5:11--5:11--5:11--5:11--5:11--
Sunset-6:35--6:35--6:36--6:37--6:37--6:37--6:38-
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
rain showers
light rain
heavy rain
heavy rain
heavy rain
thunderstorm
thunderstorm
thunderstorm
rain showers
clear
clear
clear
Rain (mm)
---------2415181631343---
Temp. °C222220232320232322222120202020212221222220
Feels °C (?)212017232321252424232118201920212221222120
  • 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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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

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View detailed surf forecast for Barra do Una at:
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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 12 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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