Barra do Una surfForecast / São Paulo / Brazil

information circle16 Day Weather and Surf, issued 2 am Monday 30 Mar 2026 -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
26.5° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Mar 31) at 3AM. The primary swell is predicted to be 0.8m and 5s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.3m and 7s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Barra do Una in the next 16 days are 1.1m 10s and forecast to arrive on Wednesday (Apr 01) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 4s period and expected on Monday (Mar 30) at 6PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 31st Mar)2.5ft (0.8m) 5s
Best Surf 9PM (Fri 3rd Apr)4ft (1.2m) 8s
Most Powerful12PM (Wed 1st Apr)3.5ft (1.1m) 10s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 15mm), heaviest on Mon night. Warm (max 26°C on Mon afternoon, min 21°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Sat night. Warm (max 32°C on Fri afternoon, min 23°C on Thu morning). Wind will be generally light.

Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
1
0
1
1
1
1
1
1
1
1
0
0
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.2
S
0.3
SSE
0.3
ESE
0.7
SE
0.6
ESE
0.9
SE
0.9
SE
1.1
SE
1.1
SE
0.9
ESE
1
ESE
0.9
ESE
0.9
ESE
1
ESE
0.9
ESE
0.8
ESE
0.8
ESE
0.7
ESE
0.4
SSE
0.3
SSE
0.5
ESE
Period(s) (?)11117668810988888888813127
Wave
Graph
(?)Metric surfscale
Energy kJ (?)924933241159520817612314310095128107666460553130
Wind
(km/h)
10
SW
10
SE
5
NE
5
SSW
5
SE
5
NNE
5
WSW
5
SW
5
NNW
5
N
5
ENE
10
NNE
5
NW
5
E
10
NW
10
WSW
15
SSW
5
S
10
SSW
10
SSE
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncrossglassonglassoffcross-
on
onglassglasscross-
off
offcross-
off
glasscross-
off
cross-
on
onononcross-
on
cross-
off
High Tide
/ height (m)
1:09PM
1.26
1:52AM
1.29
1:41PM
1.36
2:14AM
1.32
2:13PM
1.43
2:36AM
1.32
2:43PM
1.45
2:58AM
1.31
3:13PM
1.43
3:20AM
1.27
3:43PM
1.37
3:42AM
1.22
4:14PM
1.29
Low Tide
/ height (m)
7:50PM
0.06
8:01AM
0.32
8:14PM
0.06
8:16AM
0.25
8:35PM
0.08
8:31AM
0.18
8:53PM
0.14
8:48AM
0.14
9:11PM
0.21
9:07AM
0.11
9:28PM
0.29
9:27AM
0.12
9:45PM
0.38
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Saturday
04
Sunday
05
Sunrise6:15--6:16--6:16--6:16--6:16--6:16--6:18--
Sunset-6:08--6:07--6:07--6:06--6:05--6:04--6:02-
part cloud
cloud
thunderstorm
thunderstorm
thunderstorm
cloud
part cloud
thunderstorm
part cloud
thunderstorm
cloud
part cloud
clear
part cloud
part cloud
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
Rain (mm)
--552--3-1------3713-
Temp. °C252624232422252523252725313225282725252524
Feels °C (?)272826262724262825293027343526292928272726
  • 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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