
Surf Forecasts:
Balneario Sao Jose surf forecast from 3 Aug 2026:
- Best quality surf: Sunday 9 Aug, 6AM (local time) - 3ft (0.9m), 17s period, S swell with offshore winds.
- Most powerful swell: Sunday 9 Aug, 6PM (local time) - 5ft (1.5m), 14s period, S swell with 915 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 9AM (local time) - 2ft (0.6m), 7s 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 Monday (Aug 03) at 9AM. The primary swell is predicted to be 0.6m and 7s period with a secondary swell of 0.4m and 4s. Another secondary swell of 0.4m and 4s is also forecast. 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 1.5m 14s and forecast to arrive on Sunday (Aug 09) at 6PM. Winds are predicted to be cross-shore 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 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 3rd Aug) | 2ft (0.6m) 7s |
| Best Surf | 6AM (Sun 9th Aug) | 3ft (0.9m) 17s |
| Most Powerful | 6PM (Sun 9th Aug) | 5ft (1.5m) 14s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
G'day, Rusty here. Let's have a look at what's on the cards for Balneario Sao Jose.
Alright, the next couple of weeks are a bit of a mixed bag. We've got a fair bit of swell on the horizon, but the wind is gonna be the main character, making things tricky at times. The first week is mostly small and clean with some real nice moments, and then we get a solid pulse of size that'll need the right conditions to line up. The standout window is definitely Sunday the 9th.
First up, Monday the 3rd kicks off with a clean, glassy 2ft swell from the east, but it's short period stuff at 7 seconds, so nothing with any real punch. The combined energy is weak (51). Tuesday the 4th picks up a bit with the swell dropping to 1ft but the period jumps to 11 seconds, bringing a bit more shape. The water temp is about average for this time of year, so no dramas there. Wednesday the 5th keeps the trend going with 2ft swell from the south and a solid 11-second period, and the morning is glassy. The energy is starting to build (175), but it's still small.
Thursday the 6th is a bit of a mixed day. The morning has a light cross-offshore wind with a small 2ft east swell, but the afternoon goes glassy again with a similar 3ft swell. Friday the 7th has a clean offshore breeze from the NNW in the morning, but the swell is tiny at 2ft. Saturday the 8th is one to skip – the wind is cross-onshore all day and the swell is small and weak.
Now, here's where it gets interesting. Sunday the 9th is the pick of the whole forecast. We've got a clean 4ft south swell pushing in with a very long 16-second period. The combined energy is a solid 748, so there's some proper grunt behind it. The morning is glassy with a light offshore from the north, making for some seriously clean lines. Keep in mind, with that long period, Balneario Sao Jose is a beach/pier setup, so it might break a bit straight at times, but the clean conditions should make it very fun. The afternoon gets messy with a strong cross-onshore, so get in early.
The following week sees a lot of size but the wind is a problem. Monday the 10th has a 8ft south swell (1736 energy) but it's cross-onshore and rainy. That's a big, chopped-up mess. Tuesday the 11th is similar with 7ft to 8ft swell and onshore wind. Wednesday the 12th is a little better, with a 8ft south swell (1393 energy) and a light cross-onshore, which is at least ridable for the experienced crew. Thursday the 13th morning is another standout. The swell drops to a manageable 5ft from the SSE with an 11-second period (453 energy) and the wind goes glassy. That's a clean, solid session.
After that, the swell drops back under 3ft through the weekend, with some clean moments on Saturday the 15th morning (3ft, glassy). Then we head into the following week (Monday the 17th) with a big 8ft east-southeast swell (1170 energy), but the wind is cross-onshore and choppy. That kind of size with bad wind is only for the hardcore.
So, bottom line: get out on Sunday the 9th morning for the best combination of clean, long-period swell. If you miss that, Thursday the 13th morning is your next best bet with glassy conditions and a solid 5ft swell. The rest of the time, it's mostly small or messy.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue morning, min 18°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 36°C on Fri afternoon, min 22°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 | E 7 | E 7 | E 7 | SE 11 | S 12 | S 12 | S 11 | S 11 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
Wave Graph | |||||||||||||||||||
47 | 37 | 37 | 34 | 41 | 76 | 139 | 121 | 116 | 76 | 57 | 80 | 72 | 28 | 41 | 41 | 28 | 28 | 42 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | on | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | cross-off | glassy | off | off | cross-off | cross-off | cross-on | cross-on | cross-off |
High Tide | 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 | 1:09PM1.07m | 00:04AM0.82m | |||||||
Low Tide | 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 | 5:54AM0.37m | 7:06PM0.48m | |||||||
— | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | |
— | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 22 | 21 | 20 | 25 | 24 | 23 | 25 | 25 | 23 | 28 | 29 | 25 | 35 | 36 | 28 | 27 | 28 | 30 |
Feels °C | 20 | 23 | 23 | 21 | 25 | 25 | 23 | 25 | 25 | 23 | 28 | 29 | 25 | 32 | 34 | 28 | 29 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | S 11 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 |
47 | 37 | 37 | 34 | 33 | 45 | 49 | 121 | 77 | 76 | 57 | 80 | 72 | 28 | 41 | 41 | 28 | 28 | 42 | |
Swell 2 Height (m) Direction Period (s) | S 10 | SW 4 | SW 5 | SE 11 | SE 11 | S 12 | S 12 | E 7 | S 11 | S 10 | S 10 | S 9 | SSE 9 | E 5 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | S 5 |
2 | 4 | 6 | 20 | 41 | 76 | 139 | 36 | 116 | 74 | 50 | 45 | 28 | 7 | 23 | 33 | 17 | 16 | 13 | |
Swell 3 Height (m) Direction Period (s) | S 8 | SE 11 | SE 12 | SSW 4 | S 13 | SE 10 | SE 10 | SE 11 | — | S 7 | S 16 | SSE 15 | SSE 13 | SSE 8 | SSE 8 | — | NE 4 | — | S 9 |
1 | 5 | 23 | 2 | 30 | 28 | 16 | 18 | — | 4 | 5 | 21 | 34 | 14 | 13 | — | 1 | — | 6 | |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 4 | — | — | E 4 | — | — | — | — | NE 2 | — | — | — | — | — | — | SW 3 | SSW 4 | — |
2 | 5 | — | — | 12 | — | — | — | — | 1 | — | — | — | — | — | — | 7 | 21 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 53 | 0 | 423 | 0 | 0 | 0 | 0 | 0 | 44 | 0 | 0 | 0 | 0 | 9 | 0 | 0 | 135 | 91 | 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.











