Surf Forecasts:
Balneario Sao Jose surf forecast from 2 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 9PM (local time) - 2.5ft (0.7m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 3PM (local time) - 5ft (1.6m), 7s period, SSE swell with 261 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 9PM (local time) - 2.5ft (0.7m), 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 Sunday (Aug 02) at 9PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Balneario Sao Jose in the next 16 days are 1.6m 7s and forecast to arrive on Sunday (Aug 09) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Aug 07) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 2nd Aug) | 2.5ft (0.7m) 7s |
| Best Surf | 9PM (Tue 4th Aug) | 2.5ft (0.7m) 12s |
| Most Powerful | 3PM (Sun 9th Aug) | 5ft (1.6m) 7s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
G’day, I’m Rusty, and I’ve got the long-range outlook for Balneario Sao Jose. To be straight with you, the first week is a bit of a struggle – there’s a lot of small, ordinary surf with onshore winds mushing things up. But hang in there, because the second week shows some real promise, with a couple of mornings that are gonna be worth the wait.
The first real standout is Sunday morning, August 9th. The swell picks up to 5 ft from the SSE with a short period of 8 seconds, so it’s a bit weak and lumpy, but the wind is offshore from the NNW, blowing at 6 mph, making it clean. The combined wave energy here is moderate at 300, and for a beach/pier setup, that offshore wind is a major plus. It’s not gonna be huge, but it’s the first decent shot of the period.
The next highlight is Saturday morning, August 15th. The swell is 5 ft from the SE, period 7 seconds, so it’s short and a bit fat, but again, the wind is glassy – calm from the SSW at 3 mph. That’s a treat. The energy is moderate at 284. This is a good one for a clean, fun session, nothing too intense.
But the absolute best on offer is Sunday morning, August 16th. Swell is 4 ft from the S with a period of 10 seconds, giving it a bit more shape and energy. The wind is glassy – virtually calm from the SSW at 3 mph. The combined energy is moderate at 401. This is the cleanest, most lined-up swell of the whole outlook. For a beach/pier, the glassy conditions and that 10-second period will make for some real nice, rolling waves. The water temp is about 68°, which is normal for the time of year.
Now, the afternoon winds on these days tend to turn onshore or cross-on, so the mornings are the key. The first week from August 2nd to 8th is pretty flat and messy, with only a few small, surfable windows. The 11th and 12th August see a big jump in swell (7 ft and 6 ft), but it’s accompanied by rain and cross-onshore winds, so it’s more of a battle than a pleasure. The 17th August morning has a 6 ft swell from the E, but it’s cross-shore wind and just marginal.
Overall, the best bet is to pencil in the mornings of the 9th, 15th, and especially the 16th. The 16th is the standout – clean, glassy, and a proper 10-second swell. Break out the log.
Rusty.
Short Range ForecastMostly dry. Warm (max 30°C on Sun morning, min 18°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 35°C on Fri afternoon, min 21°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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) | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | SE 11 | S 12 | S 12 | S 11 | S 11 | S 10 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | SSE 9 | SSW 9 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 79 | 69 | 47 | 35 | 35 | 34 | 41 | 76 | 139 | 121 | 116 | 74 | 58 | 60 | 58 | 41 | 29 | 28 | 16 | 46 | 92 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-off | glassy | cross-on | glassy | glassy | on | cross-off | glassy | cross-on | glassy | glassy | glassy | glassy | off | off | off | off | cross-on | glassy |
High Tide | 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 | 1:09PM1.07m | 00:04AM0.82m | ||||||||
Low Tide | 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 | 5:54AM0.37m | 7:06PM0.48m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — |
 | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 30 | 26 | 19 | 22 | 22 | 20 | 25 | 24 | 23 | 26 | 24 | 22 | 28 | 28 | 24 | 33 | 35 | 29 | 32 | 26 | 25 |
Feels °C | 30 | 26 | 20 | 23 | 23 | 21 | 25 | 24 | 23 | 26 | 24 | 22 | 28 | 28 | 24 | 32 | 34 | 27 | 28 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | S 11 | ESE 8 | E 8 | E 8 | E 8 | ESE 8 | E 8 | E 8 | E 8 | E 5 | E 5 | S 6 |
| kJ | 79 | 69 | 47 | 35 | 35 | 34 | 34 | 47 | 52 | 121 | 63 | 58 | 58 | 60 | 58 | 41 | 29 | 28 | 8 | 9 | 92 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 5 | SSW 5 | SE 11 | SE 11 | S 12 | S 12 | E 7 | S 11 | S 10 | S 10 | S 9 | SSE 9 | SSE 9 | SSE 8 | E 4 | SSE 9 | E 7 | E 7 |
| kJ | 17 | 8 | 2 | 1 | 4 | 20 | 41 | 76 | 139 | 38 | 116 | 74 | 50 | 44 | 27 | 25 | 14 | 5 | 16 | 4 | 14 |
Swell 3 Height (m) Direction Period (s) | SE 9 | S 8 | S 8 | SE 11 | SE 12 | SSW 4 | S 13 | SE 10 | SE 10 | SE 11 | — | S 7 | S 16 | SE 15 | SSE 13 | SSE 12 | SSE 11 | SSE 8 | E 7 | NNE 3 | — |
| kJ | 3 | 1 | 1 | 5 | 23 | 2 | 30 | 28 | 16 | 18 | — | 4 | 5 | 9 | 17 | 27 | 12 | 12 | 9 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 3 | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | E 4 | — | SSW 9 | — |
| kJ | — | — | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | — | 46 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 102 | 0 | 9 | 104 | 0 | 0 | 19 | 0 | 0 | 66 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 100 | 336 | 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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