Balneario Sao Jose Surf Break

Lat Long: 24.09° S 46.60° W

Balneario Sao Jose Surf Forecast and Surf Report

Issued: 2 am 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Balneario Sao Jose sea temperature is
19.8° C
0.4° 

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 24 Jul 2026:

  • Best quality surf: Friday 24 Jul, 9PM (local time) - 4ft (1.2m), 9s period, S swell with glassy winds.
  • Most powerful swell: Friday 24 Jul, 6PM (local time) - 4.5ft (1.3m), 9s period, S swell with 293 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 9PM (local time) - 4ft (1.2m), 9s 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 Friday (Jul 24) at 9PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Balneario Sao Jose in the next 16 days are 1.3m 9s and forecast to arrive on Friday (Jul 24) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Jul 27) at 9PM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 24th Jul)4ft (1.2m) 9s
Best Surf 9PM (Fri 24th Jul)4ft (1.2m) 9s
Most Powerful 6PM (Fri 24th Jul)4.5ft (1.3m) 9s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s cookin’ for Balneario Sao Jose over the next couple of weeks.

Right off the bat, it’s a bit of a slow start. The first few days are pretty ordinary, with only small, short-period swell and tricky winds. The water temp is sitting around 20°, which is pretty much normal for this time of year, so no need to dig out the extra thick wetsuit just yet.

Friday the 24th is a write-off, with a messy 4ft S swell and cross-shore winds. Not worth paddling out for. Saturday morning the 25th shows a glimmer of hope – the wind goes glassy, and the swell is a clean 4ft from the SSE, with a period of 9 seconds. The combined energy is moderate (284), and it’s the first real chance for a decent session. The wind is off, the waves are tidy, but it’s a beach break, so it might get a little sectiony. Sunday morning the 26th offers a similar story: glassy conditions with a 2ft S swell, but the period jumps to 13 seconds, which is a long groundswell. That longer period might make it break a bit too straight for a beach break, but at least the energy is still moderate (320). The crowd situation is “often” here, so expect some company.

Then we hit a dry spell. From Monday the 27th right through to Friday the 31st, it’s a frustrating run of tiny swell, poor wind, and very ordinary conditions. The energy drops right off, with values like 138 and 85, and swell heights barely scraping 1ft to 2ft. It’s a real lull, and honestly, there’s nothing worth chasing.

Now, hold onto your board, because Saturday the 1st of August brings a pulse. The swell jumps to 5ft from the E, but the period is a short 6 seconds, and the wind is cross-shore. The energy is moderate (430), but it’s not clean. Sunday the 2nd is still struggling with onshore winds.

The real standout, the one you’ve been waiting for, is Thursday the 6th of August. The morning is glassy, with a solid 7ft swell from the ESE, a period of 10 seconds, and a combined energy of 832 – that’s strong wave energy. This is a proper groundswell, and with the wind off, it’s going to be clean and powerful. This is expert territory, as it’s over 8ft for the bigger sets. Friday the 7th is also a cracker, with glassy conditions again, a 6ft ESE swell, and energy at 598. It’s still a big, solid groundswell, so respect the power.

Saturday the 8th of August sees the swell drop back to 4ft, but it’s still glassy in the morning, making for a fun, clean session to wind down the forecast period.

So, to sum it up: the first week is a bit of a grind, with only a couple of glassy windows on the 25th and 26th. The real pay-off is the second week, especially Thursday the 6th and Friday the 7th of August. Those are the days to clear your schedule. The swell is big, the direction is good, and the wind is perfect. Just be aware that the crowd factor is “often” here, so get there early.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri morning. Warm (max 22°C on Sun morning, min 17°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Warm (max 35°C on Wed morning, min 20°C on Wed night). Wind will be generally light.

Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
2
1
2
2
1
2
1
0
1
1
0
1
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
S
8
1.3
S
9
1.2
SSE
9
1.3
SSE
9
1.2
SSE
9
1.1
SSE
9
0.7
S
13
0.7
S
13
0.9
SE
8
0.7
SE
8
0.6
SE
8
0.4
S
12
0.4
S
11
0.4
S
11
0.4
S
12
0.4
S
11
0.7
E
7
0.5
S
11
0.4
S
10
0.5
S
10
0.4
S
9
Wave Graph
Metric surfscale
Energy kJ
191
276
259
266
242
203
176
163
103
66
54
47
41
40
45
38
48
56
31
48
25
Wind (km/h)
10
SW
5
SSW
5
W
5
SW
5
SSE
5
NE
5
ESE
10
ESE
5
W
0
NE
10
ESE
5
NNE
5
NNE
5
SSW
10
N
5
NW
5
WSW
10
N
15
SW
10
SW
5
WSW
Wind State
cross
cross-on
glassy
glassy
on
glassy
glassy
cross-on
glassy
glassy
cross-on
glassy
cross-off
cross-on
off
glassy
cross
off
cross
cross-on
cross
High Tide
12:39PM0.92m
11:26PM0.82m
1:18PM1.03m
00:35AM0.91m
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
Low Tide
6:21PM0.59m
6:16AM0.34m
7:09PM0.52m
7:03AM0.24m
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
light rain
light rain
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
mod rain
mod rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
6:45
6:45
6:45
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:39
5:39
5:40
5:40
5:40
5:42
 mm
1
1
4
6
8
Temp °C
19
18
18
19
19
18
22
22
20
27
25
23
31
29
28
35
33
26
20
20
19
Feels °C
20
19
19
20
20
19
23
23
22
28
26
25
32
30
28
34
33
27
21
22
20
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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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