Surf Forecasts:
Balneario Sao Jose surf forecast from 4 Aug 2026:
- Best quality surf: Saturday 8 Aug, 9AM (local time) - 5ft (1.6m), 12s period, SSE swell with glassy winds.
- Most powerful swell: Tuesday 11 Aug, 3AM (local time) - 5ft (1.6m), 13s period, SSE swell with 888 kJ wave energy.
- Next surfable swell (1★+): Tuesday 4 Aug, 3PM (local time) - 1.5ft (0.5m), 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 Tuesday (Aug 04) at 3PM. The primary swell is predicted to be 0.5m and 12s period with a secondary swell of 0.7m 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 1.6m 13s and forecast to arrive on Tuesday (Aug 11) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Aug 06) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 4th Aug) | 1.5ft (0.5m) 12s |
| Best Surf | 9AM (Sat 8th Aug) | 5ft (1.6m) 12s |
| Most Powerful | 3AM (Tue 11th Aug) | 5ft (1.6m) 13s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Balneario Sao Jose has in store for us over the next couple of weeks.
The opening few days are a bit of a slow grind, with small, ordinary waves. The water temp is sitting right around average for this time of year, so nothing unusual there. The first real glimmer of hope comes on Saturday the 8th. That morning, we’ve got a clean 1.6m swell sneaking in from the SSE with a nice 12-second period, and the wind is dead calm, making for glassy conditions. The energy is ramping up too, with a moderate reading. That’s the standout of the first week. It’s a beach and pier setup, so expect crowds to be likely, but it’ll be well worth it for those clean lines.
The following days are a mixed bag of onshore winds and choppy conditions, but the excitement builds again for the second week. Friday the 14th is absolute fire for the experienced crew. A solid 1.6m groundswell from the SSE, with a very long 14-second period, is pushing some serious energy. The morning is glassy with a light southerly breeze. This is the real standout of the entire outlook. The waves will have fantastic shape and power, just be aware that the long period might make it a bit straight at the beach, so hunt for a bank or a rip. The afternoon gets a bit messy with onshore wind, so get it early.
Then, to cap it all off, Wednesday the 19th is a big one for the experts. You’re looking at a 2.4m swell from the south, pushing 10-second periods, and the energy is powerful. The morning is glassy with zero wind. That’s a big, powerful, clean swell, but over 2.5m, it’s for the experienced crew only. The afternoon sees a bit of a cross-onshore breeze, but the morning window is a gem.
Overall, Saturday the 8th morning is your best bet for a fun, crowd-friendly session, but Friday the 14th morning is the absolute top-tier call for the advanced surfers.
Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Thu morning, min 22°C on Tue afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Fri night. Warm (max 28°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
AM | 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) | SE 11 | S 12 | S 12 | S 11 | S 11 | S 10 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | SSE 12 | S 13 | S 12 | S 12 | S 12 | SSE 12 | S 8 | SSE 11 | SSE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 41 | 76 | 139 | 121 | 116 | 74 | 57 | 58 | 74 | 40 | 43 | 43 | 669 | 683 | 444 | 409 | 347 | 232 | 163 | 423 | 774 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | glassy | cross-on | off | off | glassy | cross-off | cross | glassy | off | glassy | cross-on | cross-off | glassy | cross-on | cross-on | cross-on | cross | cross-on |
High Tide | 6:19PM1.05m | 6:42AM1.09m | 7:07PM0.92m | 7:54AM0.98m | 8:13PM0.80m | 9:59AM0.93m | 10:01PM0.75m | 1:09PM1.07m | 00:04AM0.82m | 1:40PM1.19m | 00:53AM0.94m | 2:08PM1.28m | 1:28AM1.07m | ||||||||
Low Tide | 11:55AM0.38m | 11:29PM0.47m | 1:52PM0.54m | 11:54PM0.53m | 4:28PM0.60m | 4:36AM0.50m | 6:03PM0.55m | 5:54AM0.37m | 7:06PM0.48m | 6:51AM0.22m | 7:52PM0.42m | 7:38AM0.09m | 8:27PM0.40m | ||||||||
 |  |  |  | |  | | | | | |  | | | | |  |  | | |  | |
 | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — |
 | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | 1 | 3 | 1 | — | 9 |
Temp °C | 26 | 24 | 23 | 28 | 26 | 24 | 32 | 31 | 26 | 28 | 25 | 20 | 24 | 24 | 24 | 22 | 20 | 20 | 19 | 19 | 19 |
Feels °C | 26 | 24 | 22 | 27 | 26 | 23 | 30 | 31 | 27 | 26 | 27 | 22 | 26 | 26 | 26 | 22 | 21 | 22 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | E 6 | ESE 7 | E 7 | S 11 | ESE 7 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | SSE 12 | S 13 | S 12 | S 12 | S 12 | SSE 12 | S 8 | SSE 11 | SSE 13 |
| kJ | 31 | 45 | 48 | 121 | 52 | 58 | 57 | 58 | 74 | 40 | 43 | 43 | 669 | 683 | 444 | 409 | 347 | 232 | 163 | 423 | 774 |
Swell 2 Height (m) Direction Period (s) | SE 11 | S 12 | S 12 | E 7 | S 11 | S 10 | S 10 | SSE 9 | SSE 9 | SSE 12 | SSE 9 | SSE 10 | — | E 8 | E 5 | E 5 | ESE 5 | E 8 | SSE 11 | E 8 | E 8 |
| kJ | 41 | 76 | 139 | 36 | 116 | 74 | 50 | 29 | 28 | 27 | 8 | 19 | — | 29 | 34 | 21 | 10 | 31 | 158 | 12 | 10 |
Swell 3 Height (m) Direction Period (s) | S 13 | SE 10 | SE 10 | SE 11 | ESE 10 | — | S 16 | SSE 15 | SSE 13 | SSE 9 | — | SW 3 | — | — | — | E 15 | E 7 | E 8 | E 8 | — | E 12 |
| kJ | 30 | 28 | 16 | 18 | 11 | — | 5 | 21 | 17 | 8 | — | 2 | — | — | — | 4 | 9 | 31 | 11 | — | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 3 | SSW 4 | SSW 3 | E 8 | ESE 5 | — | — | SW 4 | S 6 | — | — | ESE 5 |
| kJ | — | — | — | — | — | — | — | — | — | 4 | 14 | 1 | 18 | 38 | — | — | 18 | 89 | — | — | 34 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 42 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 0 | 95 | 0 | 0 | 168 | 35 | 35 | 47 | 48 |
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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