Balneario Sao Jose Surf Break

Lat Long: 24.09° S 46.60° W

Balneario Sao Jose Surf Forecast and Surf Report

Issued: 8 am 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Balneario Sao Jose sea temperature is
19.8° C
0.5° 

Balneario Sao Jose surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Balneario Sao Jose surf forecast from 26 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 9PM (local time) - 2.5ft (0.7m), 12s period, S swell with cross-offshore winds.
  • Most powerful swell: Sunday 26 Jul, 6PM (local time) - 2.5ft (0.7m), 12s period, S swell with 146 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 9PM (local time) - 2.5ft (0.7m), 12s period with S swell.

Best Forecast Surf Conditions for Balneario Sao Jose this week:

The surf forecast for Balneario Sao Jose over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 26) at 9PM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.8m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Balneario Sao Jose in the next 16 days are 0.7m 12s and forecast to arrive on Sunday (Jul 26) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 26) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sun 26th Jul)2.5ft (0.7m) 12s
Best Surf 9PM (Sun 26th Jul)2.5ft (0.7m) 12s
Most Powerful 6PM (Sun 26th Jul)2.5ft (0.7m) 12s

Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.


The Lowdown

Alright, this is Rusty comin' at ya from the local beach.

Right off the bat, we've got a bit of a slow start, but don't let the quiet fool you—there's a real pulse building in the water. The early days are small, but things are set to ramp up into something truly special by the second week. For the first few days, you're looking at small, clean, glassy conditions. It's not going to blow your mind, but it's shoulder-high fun for the patient surfer.

The standout period is clear: the 5th of August through the 8th of August. That's where the magic happens. A solid, long-period groundswell rolls in, and the wind plays ball. Balneario Sao Jose is protected from the northerly breezes and sits wide open to the south swell. The water temp is sitting at 68°, which is pretty much spot on for this time of year, so no surprises there.

Let's get into the day-by-day, starting with the first real action. On Sunday, July 26th, we finally see a pulse. The morning is glassy with a clean 2ft swell from the south, a period of 13 seconds, and moderate combined energy (321). That's a nice, clean start to the day. The afternoon gets a bit dicey with a cross-on breeze, so get your waves in early.

Monday, July 27th, is a repeat of the morning glass-off, but the swell drops a touch to 2ft, and the period shortens to 8 seconds. The energy is weak (161). It's surfable, but nothing to write home about.

Tuesday, July 28th, offers a similar story. A 3ft swell from the east-southeast in the morning with a clean cross-off breeze, but it's still a mushy, short-period affair. The afternoon turns glassy again with a 2ft south swell and a longer 12-second period, but the energy is still moderate (177).

Wednesday, July 29th, and Thursday, July 30th, are the lull before the storm. Swell heights drop to 1ft and 2ft. The morning of the 30th is glassy, but the energy is weak (91). The afternoon brings rain showers and a cross-on wind, making it poor. This is the quiet gap before the big push.

Now we get to the real action. The first big standout is Wednesday, August 5th. The morning is absolutely glassy with a 6ft swell from the south, a very long 14-second period, and strong wave energy (1155). This is solid, powerful groundswell. The water will be clean, but at 6ft, it's starting to push into the intermediate range. The afternoon gets a bit bumpy with a cross-on wind, but that morning session is a cracker.

The absolute best of the bunch is Thursday, August 6th. The morning is glassy again with a 8ft swell from the south-southeast, a 14-second period, and very strong wave energy (1906). The afternoon is also glassy, with a 7ft swell from the same direction and strong energy (1652). This is a full day of big, clean, powerful swell. This is for experienced surfers only—it's big, heavy, and the long period means it will be walling up. At a beach break, that long period can make it a bit closed-out and fast, but the quality is undeniable.

Friday, August 7th, the swell is still pumping at 6ft, but the wind turns cross-on, which will chop up the surface. It's still a big day, but it loses the glassy perfection of the day before.

Saturday, August 8th, is still a great option. The morning glass-off returns with a 5ft swell from the south-southeast, a 12-second period, and strong energy (724). This is a great size for a wider range of surfers, and the conditions are clean.

After that, the swell slowly backs off through the 9th and 10th of August, with clean conditions and dropping swell sizes. It's a nice, gentle comedown.

So, if you're looking for the one true standout, it's the morning of Thursday, August 6th. That's the session. Big, glassy, powerful groundswell. The morning of Wednesday, August 5th, is a very close second. The early week is for fun, clean waves, and the second week is for power and size. Crowds are often a factor here, so be prepared for some company when the good stuff hits.

The long stretch from the 27th of July to the 4th of August is a real lull, but the forecasts can change, and it usually doesn't stay flat for long.

This is Rusty, signing off.

Short Range Forecast

Mostly dry. Warm (max 30°C on Tue morning, min 19°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Thu afternoon. Warm (max 35°C on Wed afternoon, min 19°C on Thu afternoon). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
0
1
1
1
1
1
1
1
1
0
1
1
0
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
13
0.8
S
13
0.6
S
12
0.7
SE
8
0.7
SE
8
0.4
S
12
0.9
ESE
8
0.5
S
12
0.4
S
12
0.4
S
12
0.5
S
11
0.5
S
11
0.5
S
10
0.5
S
10
0.6
S
9
0.7
S
9
0.7
S
9
0.4
SSE
12
0.6
S
11
0.6
S
12
0.6
S
11
Wave Graph
Metric surfscale
Energy kJ
173
212
103
68
66
53
95
65
46
42
61
58
51
49
63
81
79
47
84
98
82
Wind (km/h)
0
NNE
10
ESE
5
NNE
5
NNE
10
ESE
5
NNE
5
N
5
E
10
NNW
5
NW
10
WNW
5
NNW
5
SSW
15
SSW
5
SSW
0
SE
5
SE
5
ENE
0
ENE
5
ESE
10
N
Wind State
glassy
cross-on
cross-off
glassy
cross-on
glassy
cross-off
glassy
off
off
cross-off
off
glassy
cross-on
glassy
glassy
on
glassy
glassy
cross-on
off
High Tide
1:47PM1.12m
1:14AM1.01m
2:13PM1.19m
1:46AM1.11m
2:37PM1.25m
2:15AM1.21m
3:02PM1.29m
2:45AM1.29m
3:28PM1.31m
3:16AM1.35m
3:57PM1.31m
3:50AM1.38m
4:28PM1.29m
Low Tide
7:46PM0.45m
7:43AM0.14m
8:18PM0.39m
8:19AM0.07m
8:47PM0.35m
8:53AM0.02m
9:15PM0.33m
9:26AM-0.01m
9:42PM0.32m
9:57AM0.00m
10:08PM0.32m
10:27AM0.05m
10:31PM0.34m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:45
6:43
6:43
6:43
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:40
5:40
5:40
5:42
5:42
5:43
 mm
1
5
1
Temp °C
22
22
19
25
24
22
30
30
27
34
35
27
22
21
20
20
21
20
26
26
25
Feels °C
22
22
19
25
24
23
30
31
26
32
34
28
22
21
21
22
23
23
28
28
25
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  • 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 Balneario Sao Jose Surf forecast

The above surf forecast table for Balneario Sao Jose provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Balneario Sao Jose can be found by selecting the local surf guide option on the grey menu. Our Balneario Sao Jose 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 (Balneario Sao Jose) 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 Balneario Sao Jose 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.

Balneario Sao Jose is 3 km (2 miles) from the city of Mongagua. If you plan a holiday in São Paulo, look for hotels and other accommodation in Mongagua. Mongagua has rooms for a wide range of budgets as well as car hire and transport links.

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