
Surf Forecasts:
Balneario Sao Jose surf forecast from 1 Aug 2026:
- Best quality surf: Saturday 1 Aug, 3AM (local time) - 4.5ft (1.3m), 6s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 8 Aug, 3AM (local time) - 5ft (1.6m), 9s period, SSE swell with 442 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 12AM (local time) - 1.5ft (0.4m), 12s period with SSE 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 Saturday (Aug 01) at 12AM. The primary swell is predicted to be 0.4m and 12s period with a secondary swell of 0.6m and 5s. Another secondary swell of 0.5m and 8s is also forecast. Another secondary swell of 0.7m and 5s is also forecast. 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 1.6m 9s and forecast to arrive on Saturday (Aug 08) at 3AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 1st Aug) | 1.5ft (0.4m) 12s |
| Best Surf | 3AM (Sat 1st Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 3AM (Sat 8th Aug) | 5ft (1.6m) 9s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what Balneario Sao Jose has in store for us over the next couple of weeks.
First up, the water temp is sitting at 68.2°F, which is pretty much bang on average for this time of year, so no surprises there.
The week ahead is a bit of a slow grind. We’ve got a small window of opportunity on the morning of Saturday the 1st of August. The swell is a tiny 4.6ft from the east, but the period is a super short 6 seconds, so it’ll be a bit lumpy. The real kicker is the glassy, offshore wind, which will make it look a lot better than it is. It’s an intermediate wave at best, and crowds are often around, so you’ll have company. That morning is the best of a pretty average bunch.
The next few days are all about tiny, weak surf. The combined energy is low, often in the double digits, with a lot of cross-onshore wind messing things up. There’s a glassy morning on Tuesday the 4th with a bit more energy (127), but it’s still only 2.3ft. It’s surfable, but you’ll be working for it.
Now, hold on to your board, because things get real interesting on Sunday the 9th of August. The morning brings a pulse of solid 4.3ft swell from the south with a very long 15-second period. That’s a proper groundswell, folks. The combined energy jumps to a strong 748, and with a light offshore wind, the conditions are going to be clean. This is the standout session of the whole forecast. The only catch is that with a period this long, it might be a bit too straight at a beach break like this, but with the wind right, it’ll be worth a look. The afternoon gets ruined by a strong onshore wind, so get your waves in early.
The energy stays high into Monday the 10th, with a 5.2ft south swell and a 15-second period, but the wind is a cross-onshore, which will put a chop on it. It’s more of a challenging session for the experienced crew.
The second week winds down with a smaller, more manageable swell. The morning of Friday the 14th of August is a sleeper pick. We’ve got a 5.2ft SSE swell with a 12-second period, and perfectly glassy conditions with no wind. The combined energy is a solid 684, and it’ll be clean. It’s a great call for a relaxed morning session.
Overall, the first week is a bit of a write-off with small, onshore junk. The absolute standout is the morning of Sunday the 9th of August, and the glassy morning of Friday the 14th is a solid backup. The rest is just making the most of small, clean windows.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 17°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 12 | E 6 | S 11 | E 7 | E 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | S 12 | S 11 | S 11 | S 10 | S 10 | E 8 | SSE 9 |
Wave Graph | |||||||||||||||||||
48 | 151 | 83 | 144 | 100 | 65 | 123 | 52 | 52 | 48 | 54 | 61 | 99 | 116 | 82 | 73 | 46 | 41 | 28 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | off | cross-off | on | cross | glassy | on | glassy | glassy | on | cross | cross | cross-on | glassy | glassy | cross-on | cross |
High Tide | 3:50AM1.38m | 4:28PM1.29m | 4:26AM1.36m | 5:02PM1.24m | 5:05AM1.30m | 5:38PM1.16m | 5:49AM1.21m | 6:19PM1.05m | 6:42AM1.09m | 7:07PM0.92m | 7:54AM0.98m | 8:13PM0.80m | |||||||
Low Tide | 10:08PM0.32m | 10:27AM0.05m | 10:31PM0.34m | 10:56AM0.13m | 10:52PM0.37m | 11:25AM0.24m | 11:11PM0.42m | 11:55AM0.38m | 11:29PM0.47m | 1:52PM0.54m | 11:54PM0.53m | 4:28PM0.60m | |||||||
— | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 |
Temp °C | 18 | 24 | 23 | 22 | 30 | 27 | 22 | 23 | 22 | 20 | 26 | 25 | 22 | 22 | 20 | 19 | 27 | 27 | 24 |
Feels °C | 19 | 23 | 23 | 22 | 29 | 26 | 22 | 24 | 23 | 21 | 27 | 26 | 22 | 23 | 21 | 20 | 28 | 28 | 25 |
Swell 1 Height (m) Direction Period (s) | SE 5 | E 6 | S 11 | E 6 | E 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 4 |
21 | 78 | 83 | 100 | 100 | 65 | 62 | 52 | 52 | 48 | 54 | 61 | 57 | 65 | 61 | 42 | 43 | 41 | 10 | |
Swell 2 Height (m) Direction Period (s) | S 8 | S 11 | E 10 | S 10 | S 10 | S 10 | S 10 | SE 11 | SE 12 | SE 11 | SE 11 | SSE 12 | S 12 | S 11 | S 11 | S 10 | S 10 | SSE 9 | E 7 |
35 | 88 | 2 | 32 | 17 | 8 | 2 | 4 | 23 | 20 | 40 | 50 | 99 | 116 | 82 | 73 | 46 | 28 | 28 | |
Swell 3 Height (m) Direction Period (s) | SSE 12 | E 11 | — | — | SE 9 | S 8 | S 8 | S 10 | S 12 | S 14 | S 13 | SE 10 | SE 10 | SE 10 | — | SSW 3 | S 12 | S 11 | SSE 9 |
48 | 2 | — | — | 3 | 1 | 1 | 2 | 3 | 16 | 31 | 37 | 15 | 15 | — | 1 | 3 | 2 | 26 | |
Wind waves Height (m) Direction Period (s) | ENE 5 | E 6 | ESE 6 | E 7 | — | — | E 7 | WSW 2 | SSW 2 | — | — | — | — | SW 3 | SW 3 | — | — | ENE 2 | — |
22 | 151 | 64 | 144 | — | — | 123 | 1 | 1 | — | — | — | — | 3 | 3 | — | — | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 32 | 0 | 0 | 32 | 48 | 0 | 135 | 0 | 0 | 32 | 19 | 28 | 47 | 0 | 0 | 50 | 48 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











