Surf Forecasts:
Balneario Sao Jose surf forecast from 7 Aug 2026:
- Best quality surf: Saturday 8 Aug, 6PM (local time) - 5ft (1.5m), 15s period, S swell with glassy winds.
- Most powerful swell: Monday 10 Aug, 9PM (local time) - 5.5ft (1.7m), 14s period, S swell with 1,047 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 6AM (local time) - 2.5ft (0.7m), 8s 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 Friday (Aug 07) at 6AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.3m and 9s. 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 1.7m 14s and forecast to arrive on Monday (Aug 10) at 9PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 7th Aug) | 2.5ft (0.7m) 8s |
| Best Surf | 6PM (Sat 8th Aug) | 5ft (1.5m) 15s |
| Most Powerful | 9PM (Mon 10th Aug) | 5.5ft (1.7m) 14s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
Alright, Rusty here, let's talk about the next couple weeks at Balneario Sao Jose.
You're going to be waiting a bit this week. The first few days are looking pretty grim with weak, short-period windswell and onshore wind. Not much to get excited about, honestly. But hold on, because the weekend is where things start to look up. The standout session is shaping up for Saturday morning, August 8th. The forecast is calling for a clean 4ft groundswell from the south with a solid 10-second period and glassy conditions. The wave energy is moderate (352), and with that offshore wind, it's going to be a fun, clean session. It's a beach/pier setup, so don't expect perfection, but for a Saturday morning it's a solid bet.
After that, the swell sticks around but the wind gets a bit messy. Sunday is still surfable with 4ft southerly swell, but it's cross-onshore and a bit lumpy. The water temperature is about average for this time of year, so no surprises there.
The following week is a tough read. The energy picks up a bit, but it's mostly onshore or rainy. Monday morning, August 17th, is another one to watch. It's a bigger push of 6ft from the east, but with a short period of 7 seconds, so it's more of a beach-break chop. The morning is glassy and calm, so it could be worthwhile if you can get out early before the cross-onshore afternoon breeze kicks in. But honestly, the combination of short period and a beach break means it won't be the best shape.
The end of the window, around August 21st and 22nd, has some potential. A cleaner 3ft swell from the southeast with a longer 11-second period arrives on Friday morning, August 21st, with glassy conditions. That's a promising setup for a cleaner, more lined-up wave, though the energy is still moderate (356). Saturday morning, the 22nd, also looks good with glassy conditions and a 3ft SE swell, but it's a smaller day.
In short, the best bet is this Saturday morning, August 8th, with the clean south swell. The second week has a few mornings worth checking, but nothing is a sure thing. Keep an eye on the forecasts, as things can change.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Fri night. Warm (max 32°C on Fri morning, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Mon afternoon. Very mild (max 19°C on Sun night, min 17°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||
Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||
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 8 | E 8 | E 8 | E 7 | S 10 | S 16 | S 14 | S 13 | S 13 | SSE 12 | SSE 11 | S 13 | S 13 | S 12 | S 12 | S 11 | S 12 | SSE 13 | SSE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 57 | 40 | 28 | 27 | 327 | 743 | 626 | 511 | 386 | 833 | 716 | 862 | 891 | 504 | 480 | 231 | 505 | 722 | 528 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross | cross-on | glassy | glassy | on | cross-off | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | glassy |
High Tide | 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 | 3:01PM1.32m | 2:33AM1.30m | |||||||
Low Tide | 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 | 8:53AM-0.05m | 9:19PM0.40m | |||||||
 |  |  |  |  | | |  | |  | | | | | | | | | | |
 | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:46 | — |
mm | — | — | 1 | 8 | — | — | — | — | 2 | 4 | 2 | 4 | 5 | 2 | 2 | 2 | 1 | — | — |
Temp °C | 26 | 32 | 26 | 20 | 25 | 26 | 25 | 21 | 20 | 19 | 18 | 18 | 17 | 17 | 17 | 18 | 19 | 19 | 18 |
Feels °C | 25 | 30 | 27 | 22 | 27 | 28 | 26 | 23 | 21 | 20 | 18 | 18 | 15 | 16 | 16 | 18 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 7 | S 10 | S 16 | S 14 | S 13 | S 13 | SSE 12 | SSE 11 | S 13 | S 13 | S 12 | S 12 | S 11 | S 12 | SSE 13 | SSE 12 |
| kJ | 57 | 40 | 28 | 27 | 327 | 743 | 626 | 511 | 386 | 833 | 716 | 862 | 891 | 504 | 480 | 231 | 505 | 722 | 528 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 12 | S 11 | SSE 10 | E 7 | S 9 | E 6 | E 6 | E 6 | E 9 | E 8 | E 8 | E 12 | — | — | SSE 13 | — | — | — |
| kJ | 28 | 27 | 21 | 19 | 17 | 117 | 48 | 15 | 10 | 37 | 10 | 5 | 3 | — | — | 170 | — | — | — |
Swell 3 Height (m) Direction Period (s) | SSE 13 | SSE 9 | SSE 8 | S 3 | S 20 | — | — | — | — | E 13 | E 13 | — | E 12 | — | — | — | — | — | — |
| kJ | 17 | 15 | 7 | 1 | 8 | — | — | — | — | 4 | 3 | — | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 9 | SSW 2 | — | — | E 4 | E 6 | SW 3 | S 5 | — | ESE 5 | ESE 6 | ESE 6 | ESE 5 | ESE 6 | ESE 6 | E 6 | E 6 | E 6 |
| kJ | — | 23 | 1 | — | — | 21 | 77 | 5 | 33 | — | 33 | 41 | 49 | 42 | 53 | 91 | 72 | 72 | 92 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 48 | 171 | 9 | 0 | 32 | 0 | 47 | 411 | 152 | 95 | 175 | 95 | 28 | 28 | 28 | 28 | 28 | 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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