Surf Forecasts:
Balneario Sao Jose surf forecast from 14 Aug 2026:
- Best quality surf: Saturday 15 Aug, 12AM (local time) - 6ft (1.8m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 15 Aug, 12AM (local time) - 6ft (1.8m), 14s period, SSE swell with 1,122 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 12AM (local time) - 6ft (1.8m), 14s period with SSE 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 Saturday (Aug 15) at 12AM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 0.2m and 8s. 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 1.8m 14s and forecast to arrive on Saturday (Aug 15) at 12AM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 15th Aug) | 6ft (1.8m) 14s |
| Best Surf | 12AM (Sat 15th Aug) | 6ft (1.8m) 14s |
| Most Powerful | 12AM (Sat 15th Aug) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Balneario Sao Jose over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s get straight to it, we got a mixed bag comin’ our way, but there are a couple sessions you won't wanna miss.
The first real standout is this coming Saturday morning. We got a proper SSE groundswell pushin’ in at 6ft, with a period of 13 seconds. That’s real energy, and the combined swell energy is strong, reading 1162. Wind is dead calm, leavin’ the ocean glassy. This is the one for the experienced surfers. If you’re not solid in bigger surf, this one’s gonna be a handful – at 6ft, it’s sizing up.
Balneario Sao Jose (Brazil) is the spot. The water is 69°, which is a touch warmer than average for this time of year – nothin’ radical, but you might be fine in a spring suit.
Leadin’ into that, Friday morning is a decent warm-up. Swell is 4ft from the S with a 13-second period, and it’s glassy too. The combined energy is moderate at 569. It’s not as big as Saturday, but it’s clean and will have some push. Friday afternoon, the wind swings onshore and it gets more ordinary – I’d be out there in the morning.
Saturday afternoon drops off as the wind goes cross-onshore. Sunday looks messy. The swell is 6ft, but the period crashes to 8 seconds, and the wind is all over the place. Not worth your time.
Monday morning sees the swell settle to 5ft with a 9-second period, but it’s glassy. It’ll be okay, but nothin’ special. Tuesday morning is smaller again at 4ft, and the energy is weakenin’.
There’s a real gap from Tuesday afternoon through to Thursday morning. The surf is tiny and weak. Thursday morning gets interesting again with a 5ft ESE swell and cross-offshore wind, which could make for some clean walls, but the period is short at 7 seconds, so it might lack punch.
After that, we hit the doldrums. From Friday the 21st all the way through to Monday the 25th, the surf is mostly poor and weak. There’s some south swell energy startin’ to build on the 24th and 25th, but winds are onshore or variable, and the quality just ain’t there. The combined energy is weak, nowhere near enough to get excited about.
The long-range stuff, into the final week of the month, is lookin’ pretty average. There are signs of a S/SE swell around the 27th and 28th, but it’s small and the winds look iffy. At this stage, I wouldn’t be plannin’ any road trips around it. It’s a waitin’ game.
So, in short: Saturday morning is the one. Get on it while it’s good.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 19°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 33°C on Wed morning, min 21°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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) | S 13 | SSE 13 | SSE 14 | SSE 13 | SSE 12 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | E 8 | E 7 | E 7 | E 7 | ESE 8 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 564 | 690 | 1122 | 1044 | 511 | 427 | 291 | 416 | 593 | 417 | 300 | 240 | 222 | 171 | 107 | 72 | 54 | 131 | 127 | 94 | 79 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross | on | cross | cross | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | off | cross-off | glassy | glassy | off | cross-on | cross |
High Tide | 3:50PM1.25m | 3:38AM1.38m | 4:14PM1.21m | 4:11AM1.35m | 4:37PM1.16m | 4:44AM1.27m | 5:00PM1.10m | 5:19AM1.16m | 5:24PM1.03m | 5:59AM1.03m | 5:50PM0.95m | 6:51AM0.89m | 6:25PM0.85m | ||||||||
Low Tide | 9:50AM0.01m | 9:45PM0.38m | 10:10AM0.09m | 9:53PM0.35m | 10:26AM0.20m | 10:08PM0.32m | 10:39AM0.32m | 10:29PM0.32m | 10:52AM0.43m | 10:54PM0.35m | 11:03AM0.55m | 11:23PM0.42m | 11:06AM0.67m | 11:57PM0.52m | |||||||
 | |  | | | | |  |  | | | | | | | | | | | | | |
 | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — |
 | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 20 | 21 | 22 | 20 | 24 | 23 | 20 | 25 | 24 | 23 | 31 | 29 | 28 | 33 | 30 | 27 | 31 | 25 | 21 |
Feels °C | 23 | 23 | 22 | 23 | 24 | 21 | 26 | 24 | 23 | 27 | 26 | 26 | 32 | 30 | 28 | 32 | 31 | 28 | 30 | 26 | 21 |
Swell 1 Height (m) Direction Period (s) | S 13 | SSE 13 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | ESE 8 | SSE 11 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | ESE 9 | ESE 8 | ESE 8 | E 8 | E 7 | E 7 | E 7 | ESE 8 | ESE 8 |
| kJ | 564 | 690 | 1122 | 1044 | 511 | 228 | 291 | 123 | 460 | 417 | 300 | 240 | 222 | 171 | 107 | 72 | 54 | 86 | 127 | 94 | 79 |
Swell 2 Height (m) Direction Period (s) | E 6 | E 8 | E 8 | E 9 | — | — | SSE 11 | ESE 13 | SSE 10 | S 10 | S 10 | SSE 10 | SSE 10 | S 9 | S 10 | S 10 | S 9 | S 9 | S 8 | S 9 | S 8 |
| kJ | 5 | 6 | 6 | 6 | — | — | 158 | 17 | 85 | 55 | 53 | 34 | 18 | 7 | 7 | 2 | 2 | 2 | 5 | 14 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 13 | — | — | — | — | — | SE 9 | S 11 | S 8 | S 8 | SE 13 | SE 13 | SE 12 | — | S 11 |
| kJ | — | — | — | — | — | — | 17 | — | — | — | — | — | 3 | 2 | 1 | 1 | 7 | 7 | 6 | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ESE 8 | ESE 8 | — | ESE 8 | E 8 | — | — | — | — | — | — | — | — | E 7 | — | SW 3 | SW 4 |
| kJ | — | — | — | — | 165 | 427 | — | 416 | 593 | — | — | — | — | — | — | — | — | 131 | — | 6 | 14 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 213 | 0 | 26 | 91 | 26 | 28 | 28 | 0 | 0 | 32 | 0 | 0 | 32 | 0 | 0 | 0 | 0 | 0 | 35 | 9 |
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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