Barre da Una surfForecast / São Paulo / Brazil

information circle12 Day Weather and Surf, issued 2 pm Thursday 03 Jul 2025 -03
Forecast update in hr  min  s Forecast update imminent
Barre da Una surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Barre da Una sea temperature is
21.7° C
(Which is 1.0°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Barre da Una this week:

The surf forecast for Barre da Una over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 03) at 9PM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Barre da Una in the next 12 days are 1.7m 10s and forecast to arrive on Friday (Jul 04) at 9AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Jul 08) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 3rd Jul)5ft (1.5m) 10s
Best Surf 9PM (Thu 3rd Jul)5ft (1.5m) 10s
Most Powerful 9AM (Fri 4th Jul)5.5ft (1.7m) 10s

Table - best surf conditions forecast for Barre da Una over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Thu
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tue
15
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
S
1.3
S
1.7
SSE
1.2
S
1.1
S
0.8
S
0.7
S
0.7
SSE
0.5
SSE
0.6
SSE
0.4
SSE
0.7
E
1
E
1
E
0.7
ESE
0.6
S
0.5
S
0.5
S
0.6
S
0.5
S
0.4
S
0.4
S
0.4
S
0.6
ESE
0.6
ESE
0.6
ESE
0.5
ESE
0.6
ESE
0.6
ESE
0.2
S
0.4
SSE
0.6
S
0.7
S
0.7
S
0.6
S
0.5
S
Period(s) (?)1110101010109988855569912111099877777725242219181614
Wave
Graph
(?)Metric surfscale
Energy (?)6365067484973851611131066169464251806412311713512487558056415865497169101225396444374247182
Wind
(km/h)
10
W
5
WNW
5
WSW
5
SE
5
N
5
NNW
5
S
5
NNW
0
W
5
S
5
N
0
NNE
5
SSE
5
N
5
NNW
5
SSE
5
NW
5
WSW
5
SSW
5
N
0
SSE
5
SE
5
N
0
SW
5
S
5
N
5
SW
5
S
5
N
0
SSE
5
SSE
5
N
0
S
5
SE
5
N
0
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
glasscross-
on
offglassglassoffglassonglassglassonoffglassglassglassglasscross-
on
offglasscross-
on
offglassonglassglassonglassglassonglassglasscross-
on
offglass
High Tide
/ height (m)
8:09PM
0.79
8:53AM
0.82
9:28PM
0.77
11:26AM
0.84
11:10PM
0.78
12:40PM
0.92
12:13AM
0.82
1:24PM
0.99
12:55AM
0.87
1:59PM
1.06
1:30AM
0.93
2:31PM
1.12
2:03AM
0.99
3:01PM
1.15
2:35AM
1.06
3:32PM
1.17
3:09AM
1.12
4:05PM
1.17
3:44AM
1.15
4:39PM
1.14
4:21AM
1.16
5:15PM
1.10
5:00AM
1.14
Low Tide
/ height (m)
3:29AM
0.48
4:15PM
0.49
4:39AM
0.42
5:27PM
0.48
5:40AM
0.34
6:29PM
0.45
6:33AM
0.26
7:21PM
0.41
7:20AM
0.17
8:05PM
0.37
8:03AM
0.10
8:44PM
0.34
8:45AM
0.04
9:22PM
0.33
9:25AM
0.01
9:58PM
0.33
10:05AM
-0.00
10:35PM
0.36
10:46AM
0.01
11:12PM
0.39
11:29AM
0.06
11:52PM
0.43
Thu
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tue
15
Sunrise--6:46--6:46--6:46--6:46--6:46--6:46--6:46--6:46--6:46--6:46--6:45--6:45
Sunset5:28--5:29--5:29--5:29--5:30--5:30--5:30--5:30--5:30--5:31--5:31--5:32--
light rainrain showersrain showerspart cloudclearclearclearclearpart cloudpart cloudpart cloudclearclearclearclearclearclearclearpart cloudclearclearclearclearclearclearclearclearclearpart cloudpart cloudclearclearclearclearclearclear
Rain (mm)
422---------------------------------
Temp. °C151619191620191620191721201622211720191822201722211721201722211823221723
Feels °C (?)151620201620191620201921201622221820201922201823221822211923222024231823

Short Range Forecast: Light rain (total 8mm), mostly falling on Thu afternoon. Warm (max 20°C on Sat morning, min 14°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue morning, min 15°C on Mon night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 22°C on Thu morning, min 16°C on Wed night). Wind will be generally light.

Long Range Forecast: Mostly dry. Warm (max 23°C on Mon morning, min 16°C on Sat night). Wind will be generally light.

  • 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 Barre da Una Surf forecast

The above surf forecast table for Barre da Una provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Barre da Una can be found by selecting the local surf guide option on the grey menu. Our Barre da 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 (Barre da 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 Barre da 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.

Are you planning a holiday in São Paulo? If you are looking for accommodation near Barre da Una, camping, hotels and holiday cottages in São Paulo, consider staying in Biritiba Mirim which is 26 km (16 miles) away. Other places in and around São Paulo where you can find information about places to rent, and car hire include Bertioga which is 27 km (17 miles) away, Mogi das Cruzes, Guararema and Moji das Cruzes.

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