Surf Forecasts:
Balneario Sao Jose surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 12PM (local time) - 5.5ft (1.7m), 12s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 12PM (local time) - 6ft (1.9m), 13s period, SSE swell with 1,230 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 12PM (local time) - 5.5ft (1.7m), 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 Wednesday (Aug 12) at 12PM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.1m and 7s. 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 1.9m 13s and forecast to arrive on Tuesday (Aug 11) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Wed 12th Aug) | 5.5ft (1.7m) 12s |
| Best Surf | 12PM (Wed 12th Aug) | 5.5ft (1.7m) 12s |
| Most Powerful | 12PM (Tue 11th Aug) | 6ft (1.9m) 13s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for Balneario Sao Jose.
The start is a waiting game. The water’s sitting at 69°, which is a touch warmer than normal for this time of year – nothing wild, just a little extra warmth.
The first real opportunity is on Thursday, August 13th. The morning session looks sweet with a clean 4ft swell from the south and glassy conditions – dead calm, no wind. The combined energy is moderate (683). It’s not a big wave, but it’s clean and fun. Later that day, the swell pushes to 5ft from the south with a very long period of 15 seconds and offshore wind. That’s proper groundswell energy (1028), but that long period might make it a bit straight-running on the beach. Still, it’s the best of the week.
Friday morning, August 14th, also offers clean glass, 4ft from the south (582 energy). Perfect for a smooth session. Saturday morning, August 15th, brings a clean 4ft with cross-offshore winds, so you’ll get some nice little walls.
After that, the swell drops out. From the 16th through the morning of the 24th, it’s a long quiet stretch. A few glassy mornings pop up, but the swell is mostly under 3ft and the energy readings are weak. Not much to write home about.
Then, on Tuesday, August 25th, we get a late punch. The morning shows a solid 6ft from the southeast, glassy conditions, and strong wave energy (1291). That’s a proper set-up for experienced surfers – over 5ft, so it’s not for beginners. The period is short at 8 seconds, so it’s windswell, but with zero wind and clean conditions, it’ll be punchy and fun for the crew who know what they’re doing. The afternoon has a similar 6ft from the south at 12 seconds (1301), but the wind goes onshore, so grab the morning.
The standouts are Thursday morning, August 13th, for the clean, glassy conditions, and Tuesday morning, August 25th, for the bigger, clean energy. The rest is mostly flat or average. Crowds are often a factor here, so get out early on those good days.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon afternoon. Warm (max 25°C on Thu morning, min 16°C on Mon afternoon). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Sat afternoon, min 19°C on Thu afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
PM | 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) | S 13 | S 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 15 | SSE 14 | S 13 | SSE 13 | SSE 14 | SSE 13 | SSE 12 | SSE 11 | SSE 11 | ESE 7 | ESE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1514 | 987 | 1211 | 1092 | 692 | 749 | 579 | 511 | 341 | 1005 | 733 | 573 | 617 | 861 | 563 | 432 | 278 | 158 | 117 | 160 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross | cross | cross-on | glassy | glassy | on | glassy | glassy | on | glassy | cross-off | cross-on | glassy | glassy | cross-on | glassy |
High Tide | 1:28AM1.07m | 2:35PM1.32m | 2:01AM1.20m | 3:01PM1.32m | 2:33AM1.30m | 3:26PM1.29m | 3:06AM1.36m | 3:50PM1.25m | 3:38AM1.38m | 4:14PM1.21m | 4:11AM1.35m | 4:37PM1.16m | ||||||||
Low Tide | 8:27PM0.40m | 8:18AM-0.01m | 8:56PM0.40m | 8:53AM-0.05m | 9:19PM0.40m | 9:24AM-0.05m | 9:35PM0.40m | 9:50AM0.01m | 9:45PM0.38m | 10:10AM0.09m | 9:53PM0.35m | 10:26AM0.20m | 10:08PM0.32m | |||||||
 |  | | |  |  |  |  | | | | | | | | | | | | | |
 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — |
 | 5:46 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — |
mm | 3 | 4 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 17 | 17 | 18 | 20 | 20 | 19 | 25 | 23 | 19 | 24 | 23 | 20 | 24 | 25 | 21 | 25 | 24 | 21 |
Feels °C | 15 | 14 | 16 | 17 | 19 | 21 | 21 | 21 | 27 | 25 | 21 | 26 | 25 | 23 | 25 | 27 | 24 | 27 | 27 | 25 |
Swell 1 Height (m) Direction Period (s) | S 13 | S 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 12 | S 15 | SSE 14 | S 13 | SSE 13 | SSE 14 | SSE 13 | SSE 12 | SSE 11 | ESE 6 | ESE 7 | ESE 7 |
| kJ | 1103 | 987 | 1211 | 1092 | 692 | 749 | 579 | 511 | 341 | 1005 | 733 | 573 | 617 | 861 | 563 | 432 | 278 | 73 | 117 | 160 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | E 7 | — | — | E 5 | SSE 15 | E 6 | E 5 | E 5 | E 5 | E 6 | E 6 | E 6 | E 6 | SSE 11 | S 11 | S 10 |
| kJ | 19 | 5 | 4 | 4 | 1 | — | — | 45 | 312 | 23 | 14 | 9 | 5 | 12 | 17 | 20 | 43 | 158 | 83 | 54 |
Swell 3 Height (m) Direction Period (s) | — | E 12 | — | — | — | — | — | SSE 15 | E 6 | — | — | — | E 8 | — | — | — | ESE 12 | ESE 12 | ESE 13 | ESE 12 |
| kJ | — | 3 | — | — | — | — | — | 73 | 30 | — | — | — | 6 | — | — | — | 13 | 30 | 16 | 15 |
Wind waves Height (m) Direction Period (s) | S 13 | — | — | — | — | E 7 | E 4 | E 5 | — | — | — | — | — | — | — | — | E 6 | ENE 7 | — | — |
| kJ | 1514 | — | — | — | — | 1 | 25 | 70 | — | — | — | — | — | — | — | — | 102 | 73 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 356 | 95 | 28 | 28 | 26 | 17 | 32 | 0 | 0 | 29 | 0 | 0 | 97 | 0 | 0 | 28 | 0 | 0 | 28 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Balneario Sao Jose surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest