Barra do Una surfForecast / São Paulo / Brazil

information circle12 Day Weather and Surf, issued 8 pm Thursday 25 Dec 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
25.6° 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 Tuesday (Dec 30) at 9PM. The primary swell is predicted to be 0.3m and 16s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.2m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Barra do Una in the next 12 days are 1.2m 16s and forecast to arrive on Wednesday (Dec 31) at 12PM. Winds are predicted to be cross-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 Friday (Dec 26) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 30th Dec)1ft (0.3m) 16s
Best Surf 6AM (Wed 31st Dec)3ft (0.9m) 17s
Most Powerful12PM (Wed 31st Dec)4ft (1.2m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 30°C on Fri morning, min 24°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 25mm), heaviest during Wed afternoon. Warm (max 28°C on Wed morning, min 24°C on Sun night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
01
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
2
1
1
Swell
Height Map
Wave Height (m) & direction (?)
0.6
E
0.5
ESE
0.5
E
0.5
E
0.5
ESE
0.4
ESE
0.3
ESE
0.3
ESE
0.3
S
0.3
S
0.5
ESE
0.4
ESE
0.3
ESE
0.5
S
0.2
S
0.6
SSE
1.1
SSE
1.2
SSE
0.9
SSE
0.7
SSE
0.6
S
Period(s) (?)777777771010777514161614131212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3526242426159101917261591416201575565286152101
Wind
(km/h)
10
W
0
WSW
15
E
5
NNE
5
SSE
15
E
5
N
0
ESE
10
ESE
10
SW
10
WSW
15
SSE
15
E
10
SE
10
SE
10
NNE
10
SW
10
E
5
N
5
WSW
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glasscross-
off
glassglasscross-
off
glassglasscrosscross-
on
cross-
on
cross-
on
cross-
off
crosscrossoffoncross-
off
cross-
off
glasscross-
off
High Tide
/ height (m)
6:53AM
1.11
6:51PM
1.10
7:52AM
1.03
7:59PM
1.04
9:03AM
0.97
9:25PM
1.02
10:23AM
0.94
11:04PM
1.07
11:37AM
0.95
12:27AM
1.17
12:32PM
0.98
1:26AM
1.28
1:15PM
1.03
Low Tide
/ height (m)
12:16AM
0.32
12:25PM
0.64
2:12AM
0.40
3:22PM
0.64
3:58AM
0.43
4:42PM
0.57
5:21AM
0.42
5:44PM
0.46
6:29AM
0.40
6:35PM
0.35
7:28AM
0.38
7:20PM
0.23
8:17AM
0.38
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
01
Sunrise-5:18--5:18--5:20--5:20--5:20--5:22--5:22-
Sunset--6:57--6:58--6:58--6:59--6:59--6:59--7:00
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
thunderstorm
mod rain
cloud
thunderstorm
Rain (mm)
---------2-54-1--138-6
Temp. °C263028252828253029252726252626252826242827
Feels °C (?)303231283130283332292929282929283129293230
  • 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 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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