Surf Forecasts:
Balneario Sao Jose surf forecast from 2 Aug 2026:
- Best quality surf: Wednesday 5 Aug, 12AM (local time) - 2.5ft (0.7m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 5 Aug, 12AM (local time) - 2.5ft (0.7m), 12s period, S swell with 137 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3AM (local time) - 3.5ft (1.0m), 6s period with E 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 (Aug 02) at 3AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.4m and 10s. The wind is predicted to be 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 Wednesday (Aug 05) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Thursday (Aug 06) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 12AM (Wed 5th Aug) | 2.5ft (0.7m) 12s |
| Most Powerful | 12AM (Wed 5th Aug) | 2.5ft (0.7m) 12s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright mates, Rusty here with the lowdown on Balneario Sao Jose.
First off, the next week or so is quiet – a real lull with nothing much to get the heart pumping. Don't get your hopes up for the first several days; the juice just isn't flowing.
Sunday the 2nd is a write-off. From Monday through to the following Saturday morning, the waves are tiny and weak. You’ll see some glassy mornings on the 4th, 5th, and 6th, but with swell heights of 1ft to 2ft from the SE and S, and short periods, you’ll be doing more bobbing than riding. The combined energy is in the doldrums, barely reaching 118 in some spots, which is a clear sign to find something else to do.
But hold onto your leash, because Tuesday the 11th is the day. That morning, a proper 6ft southerly groundswell rolls in with a long, powerful 14-second period. The combined energy rockets up to 1191. With glassy conditions under some clouds, it’s going to be clean, powerful, and throw some serious walls. This is for the experienced crew – it’s solid, the long period will make it fast and a bit tricky, especially on a beach/pier setup. Beginners should sit this one out. The water temp is pretty standard for this time of year, nothing crazy.
Tuesday afternoon and Wednesday hold size too, but the wind gets messy, turning cross-shore from the SW and S, so that Tuesday morning window is the one to lock in.
For the rest of the week, the swell backs off. Thursday morning the 13th offers a clean-ish 4ft S swell, and Friday morning the 14th has a glassy surface, but the energy is fading fast (143). By the weekend, it’s small and choppy again with onshore winds.
Looking further ahead, Monday morning the 17th shows a little promise – 4ft from the SE, glassy, and clear skies. It’s a long way out, but it’s something to watch.
So, the verdict: if you’ve got one session in you, make it Tuesday morning the 11th. That’s the standout.
Rusty.
Short Range ForecastMostly dry. Warm (max 29°C on Sun morning, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 33°C on Fri afternoon, min 20°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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) | E 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | SE 11 | ESE 7 | S 12 | S 11 | S 11 | S 10 | S 10 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 144 | 79 | 66 | 47 | 35 | 35 | 34 | 42 | 54 | 137 | 119 | 114 | 75 | 50 | 45 | 41 | 29 | 28 | 28 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | on | cross-off | glassy | cross-on | glassy | glassy | glassy | cross-off | glassy | cross-on | glassy | glassy | glassy | off | glassy | off | off |
High Tide | 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 | 9:59AM0.93m | 10:01PM0.75m | |||||||
Low Tide | 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 | 4:36AM0.50m | 6:03PM0.55m | |||||||
 |  | | |  | |  |  | | | | | | | |  | | | | |
 | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 22 | 29 | 26 | 19 | 23 | 22 | 21 | 25 | 25 | 23 | 24 | 23 | 20 | 27 | 27 | 23 | 31 | 33 | 29 |
Feels °C | 21 | 28 | 25 | 19 | 24 | 23 | 21 | 25 | 26 | 22 | 25 | 24 | 22 | 28 | 28 | 23 | 32 | 33 | 27 |
Swell 1 Height (m) Direction Period (s) | E 6 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | ESE 7 | ESE 8 | S 11 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 |
| kJ | 84 | 79 | 66 | 47 | 35 | 35 | 34 | 31 | 54 | 60 | 119 | 63 | 57 | 42 | 44 | 41 | 29 | 28 | 28 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | SSW 4 | SSW 4 | SE 11 | SE 11 | SSE 12 | S 12 | ESE 8 | S 11 | S 10 | S 10 | S 9 | SSE 9 | SSE 9 | SSE 8 | SSE 8 |
| kJ | 32 | 17 | 8 | 2 | 1 | 2 | 20 | 42 | 50 | 137 | 60 | 114 | 75 | 50 | 45 | 28 | 26 | 14 | 13 |
Swell 3 Height (m) Direction Period (s) | — | SE 9 | S 8 | S 8 | SE 11 | SE 12 | S 14 | S 13 | SE 10 | SE 10 | SE 11 | — | S 7 | S 16 | SE 15 | S 4 | SSE 12 | SSE 11 | S 10 |
| kJ | — | 3 | 1 | 1 | 5 | 23 | 16 | 30 | 28 | 15 | 18 | — | 4 | 5 | 9 | 2 | 27 | 12 | 18 |
Wind waves Height (m) Direction Period (s) | E 7 | — | — | — | SW 4 | — | — | — | — | — | — | — | — | — | SSW 3 | NE 3 | SSW 5 | SSW 4 | ENE 3 |
| kJ | 144 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | 3 | 1 | 7 | 7 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 97 | 0 | 9 | 100 | 0 | 0 | 0 | 0 | 0 | 253 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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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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