Surf Forecasts:
Balneario Sao Jose surf forecast from 5 Aug 2026:
- Best quality surf: Saturday 8 Aug, 9AM (local time) - 5.5ft (1.7m), 11s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 12PM (local time) - 6ft (1.9m), 15s period, SSE swell with 1,479 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 6PM (local time) - 2ft (0.6m), 11s 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 Wednesday (Aug 05) at 6PM. The primary swell is predicted to be 0.6m and 11s 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 1.9m 15s and forecast to arrive on Saturday (Aug 08) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Thursday (Aug 06) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 5th Aug) | 2ft (0.6m) 11s |
| Best Surf | 9AM (Sat 8th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 12PM (Sat 8th Aug) | 6ft (1.9m) 15s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's coming up for Balneario Sao Jose.
First things first, the water is sitting at 68°, which is pretty normal for this time of year, so no surprises there.
The next few days are a bit of a write-off for anything decent. We've got small, weak swell around 2 ft and the winds are mostly fiddly. Wednesday the 5th morning is glassy but the swell is tiny and from the south, which isn't ideal for this spot. Thursday the 6th is similar. It's not until Saturday the 8th that things start to look interesting.
Saturday the 8th morning is the first real standout. We've got a clean 7 ft SSE swell with a solid 11-second period. The wave energy is strong (1001), and the wind is light and offshore from the NE. This is excellent surf, but at 7 ft, it's getting into the territory for experienced surfers only. This is your best bet in the first week.
Sunday the 9th and Monday the 10th are a mess with onshore winds and rain. The swell is there but the quality is poor. We see a bit of a lull through the middle of the week, with small, ordinary waves.
Now, looking further ahead, the real power shows up for the weekend of the 15th and 16th. Saturday the 15th has a massive 5 ft to 7 ft S/SSE groundswell, with a very long 16-second period. The energy is off the charts (1437-2277). This kind of long-period swell can be a bit tricky at a beach break, as it can close out. It's definitely for the experts only.
But the absolute pick of the 16-day window is Sunday the 16th morning. The wind is dead calm, glassy as can be. There's a solid 7 ft SSE swell, still with strong energy (1404). This is a powerful, clean, spectacular-looking morning for experienced surfers at Balneario Sao Jose. The following week starts to back off again, but the 17th offers some clean, smaller waves on the Monday morning.
So, to wrap it up: grind through the small stuff this week, hit Saturday the 8th morning for a solid session, and then mark your calendar for Sunday the 16th morning. That's the one.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Fri night. Warm (max 32°C on Fri morning, min 20°C on Fri afternoon). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Mon night. Warm (max 24°C on Sat afternoon, min 16°C on Tue morning). Wind will be generally light. | |||||||||||||||||||
Wed 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 11 | S 10 | S 10 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 11 | S 14 | S 13 | S 13 | S 12 | SSE 12 | SSE 12 | S 12 | SSE 12 | S 11 | S 11 | S 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 116 | 74 | 50 | 61 | 142 | 54 | 28 | 28 | 764 | 1059 | 694 | 582 | 339 | 743 | 754 | 759 | 847 | 930 | 191 | 848 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | off | glassy | cross-off | cross | cross | glassy | glassy | cross-on | glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on |
High Tide | 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 | 2:35PM1.32m | 2:01AM1.20m | |||||||
Low Tide | 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 | 8:18AM-0.01m | 8:56PM0.40m | ||||||||
 |  | |  |  | |  |  |  | | |  | |  | | |  | | | | |
 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — |
mm | — | — | — | — | — | — | 1 | 7 | — | — | 1 | 1 | 1 | 3 | 1 | 1 | 7 | 4 | 2 | 2 |
Temp °C | 24 | 23 | 30 | 30 | 27 | 32 | 25 | 20 | 24 | 24 | 24 | 21 | 20 | 19 | 19 | 19 | 19 | 17 | 16 | 16 |
Feels °C | 25 | 23 | 29 | 30 | 25 | 31 | 26 | 23 | 25 | 26 | 26 | 22 | 21 | 21 | 21 | 20 | 19 | 15 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | S 11 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | SSE 11 | S 14 | S 13 | S 13 | S 12 | SSE 12 | SSE 12 | S 12 | E 12 | SSE 12 | S 11 | S 13 |
| kJ | 116 | 57 | 42 | 61 | 74 | 54 | 28 | 28 | 764 | 1059 | 694 | 582 | 339 | 743 | 754 | 759 | 3 | 718 | 191 | 848 |
Swell 2 Height (m) Direction Period (s) | ESE 7 | S 10 | S 10 | S 9 | SSE 9 | SSE 9 | S 11 | S 4 | E 7 | E 8 | E 5 | E 6 | SSE 14 | E 13 | E 8 | ESE 5 | E 12 | — | — | — |
| kJ | 54 | 74 | 50 | 45 | 28 | 15 | 21 | 4 | 17 | 29 | 34 | 23 | 163 | 4 | 11 | 24 | 3 | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 10 | S 7 | S 16 | SSE 15 | SSE 13 | SSE 12 | SSE 8 | SSE 10 | E 7 | — | ENE 7 | E 15 | E 6 | — | — | E 8 | — | E 12 | — | — |
| kJ | 11 | 4 | 5 | 21 | 17 | 27 | 7 | 19 | 40 | — | 17 | 4 | 18 | — | — | 5 | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 8 | — | SSW 3 | SE 4 | — | E 5 | E 5 | SW 3 | S 4 | E 8 | E 8 | — | SSE 12 | S 11 | SSE 7 | E 5 |
| kJ | — | — | — | — | 142 | — | 4 | 17 | — | 37 | 59 | 3 | 18 | 30 | 63 | — | 847 | 930 | 191 | 43 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 9 | 0 | 0 | 0 | 0 | 44 | 0 | 0 | 0 | 28 | 0 | 50 | 35 | 91 | 152 | 175 | 175 | 95 | 95 |
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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