
Surf Forecasts:
Praia do Aventureiro surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 9AM (local time) - 5ft (1.6m), 8s period, SSE swell with glassy winds.
- Most powerful swell: Friday 18 Sep, 12AM (local time) - 6.5ft (2.0m), 12s period, SSE swell with 1,066 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 12AM (local time) - 2.5ft (0.8m), 12s period with S swell.
Best Forecast Surf Conditions for Praia do Aventureiro this week:
The surf forecast for Praia do Aventureiro over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Sep 12) at 12AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia do Aventureiro in the next 16 days are 2.0m 12s and forecast to arrive on Friday (Sep 18) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Sep 12) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 12th Sep) | 2.5ft (0.8m) 12s |
| Best Surf | 9AM (Mon 14th Sep) | 5ft (1.6m) 8s |
| Most Powerful | 12AM (Fri 18th Sep) | 6.5ft (2.0m) 12s |
Table - best surf conditions forecast for Praia do Aventureiro over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the lowdown in feet and miles per hour.
We’re looking at Praia do Aventureiro for the next couple of weeks. The first real good one is Friday morning, September 11th. The water’s at 73°, a touch warmer than normal, so you’re fine in a spring suit. We’ve got a clean 4ft swell from the south, period around 14 seconds – that’s real groundswell with plenty of grunt. Wind is glassy from the NNW, so the surface will be like a mirror. The combined energy is pumping at 488. This spot is very consistent and good for beginners, but it can get crowded sometimes, so beat the rush.
Friday afternoon turns onshore from the ESE, and it’s game over for quality.
Saturday the 12th and Sunday the 13th are a bust. Small swell, cross or onshore winds. Leave the board in the car.
Monday the 14th morning is worth a look. Swell runs 5ft from the SSE, period about 8 seconds, but the wind is glassy from the east. That’s clean, but it’s a shorter-period wave. Energy is moderate at 369. At 5ft, it’s starting to get a bit much for absolute beginners, but still okay. The afternoon gets messy with onshore wind.
Tuesday the 15th morning is a real contender. 5ft from the SE, light cross-offshore wind from the SW, energy up to 503. Clean and punchy. The afternoon holds size but the wind picks up to 12 mph, making it a bit more work.
Wednesday the 16th morning is another glassy beauty. 5ft from the SE, wind from the west at almost nothing, energy at 461. Smooth sailing.
Thursday the 17th and Friday the 18th are mostly poor. Onshore winds and rain. Skip ’em.
Now, Saturday the 19th is a hidden gem. Both morning and afternoon are glassy or dead calm. Swell drops to 3ft then 3ft from the S and SSE, periods around 9-10 seconds. Energy sits in the low 300s. Not big, but perfectly clean. This is a longboard or funboard dream.
Sunday the 20th is small and only so-so, with glassy conditions but only 2ft to 2ft.
Monday the 21st through Tuesday the 22nd, the swell just dies. We’re talking 1ft to 2ft with very low energy. A true lull.
Wednesday the 23rd morning jumps up to 6ft from the S, but with a short 8-second period and strong cross-offshore wind at 19 mph. Energy is high at 804, but it’s a choppy wind-swell. More of a kite day.
But here’s the main event – Thursday the 24th morning. 6ft from the S, period of 11 seconds, offshore wind from the west at 6 mph. Energy is cranking at 876. The forecast is for very good surf conditions. This is the one. Solid, clean groundswell – a little overhead, so it’s for the experienced crowd, but it will be firing.
Friday the 25th morning is calm and glassy with 5ft from the S, period 11 seconds. Another great clean option before the afternoon turns onshore.
Saturday the 26th morning finishes up with a calm, glassy 4ft from the SSE. A clean, mellow end.
So, the standout by a mile is Thursday morning, September 24th – that offshore, 6ft S swell at 11 seconds is the best on offer. Next is Friday morning, September 11th for the glassy groundswell, and Saturday the 19th for a smaller but perfectly glassy session. There are some flat days and onshore slop in between, but those windows are where you want to be in the water.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sat afternoon. Warm (max 26°C on Fri night, min 19°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Mon night. Warm (max 21°C on Mon afternoon, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Wave Height (m) Direction Period (s) | S 14 | S 13 | S 12 | S 12 | S 11 | S 11 | S 7 | S 9 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 9 | SSW 10 | SSE 9 | SE 8 | S 12 | S 11 | S 12 | S 12 | SSE 12 |
Wave Graph | |||||||||||||||||||||
452 | 336 | 181 | 93 | 84 | 35 | 131 | 298 | 270 | 292 | 388 | 380 | 393 | 510 | 422 | 264 | 368 | 255 | 383 | 581 | 1066 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | cross | cross | cross-off | cross-on | on | cross-on | glassy | on | off | cross-off | cross-off | cross | glassy | cross | cross | on | on | cross-on |
High Tide | 2:47PM1.11m | 2:35AM1.23m | 3:05PM1.09m | 3:08AM1.22m | 3:27PM1.07m | 3:41AM1.18m | 3:50PM1.04m | 4:14AM1.10m | 4:14PM0.99m | 4:50AM1.00m | 4:39PM0.92m | 5:29AM0.89m | 5:05PM0.84m | ||||||||
Low Tide | 9:07AM-0.05m | 9:18PM0.22m | 9:40AM0.02m | 9:45PM0.20m | 10:10AM0.12m | 10:10PM0.19m | 10:38AM0.23m | 10:33PM0.20m | 11:03AM0.35m | 10:56PM0.24m | 11:27AM0.47m | 11:24PM0.29m | 12:01PM0.57m | 00:20AM0.36m | |||||||
5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:52 | — | — | |
— | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:51 | — | — | 5:51 | — | |
mm | — | — | 1 | — | 6 | 5 | 1 | 4 | 6 | 3 | 2 | 13 | — | — | 4 | — | 1 | 8 | 2 | 2 | — |
Temp °C | 24 | 24 | 26 | 24 | 23 | 20 | 20 | 20 | 20 | 20 | 21 | 20 | 21 | 21 | 20 | 20 | 21 | 19 | 19 | 19 | 19 |
Feels °C | 26 | 26 | 27 | 25 | 23 | 20 | 21 | 20 | 21 | 23 | 23 | 20 | 22 | 19 | 21 | 22 | 21 | 18 | 19 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | S 12 | S 12 | E 8 | S 5 | S 7 | S 9 | SSE 8 | SSE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SSE 9 | SE 8 | SE 8 | S 11 | S 12 | S 12 | SSE 12 |
452 | 336 | 181 | 93 | 46 | 29 | 131 | 298 | 270 | 292 | 388 | 380 | 393 | 227 | 422 | 264 | 187 | 255 | 383 | 581 | 1066 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | S 11 | E 8 | S 9 | ESE 8 | E 8 | ESE 8 | S 12 | S 12 | S 11 | S 10 | ESE 8 | S 10 | S 12 | SE 8 | ESE 8 | SE 8 | ESE 8 |
29 | 41 | 43 | 42 | 84 | 31 | 64 | 24 | 37 | 22 | 47 | 65 | 110 | 125 | 125 | 104 | 368 | 119 | 76 | 60 | 39 | |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 12 | ESE 12 | ESE 11 | SE 12 | S 11 | ESE 8 | — | S 14 | S 13 | S 12 | — | — | — | SSE 11 | S 14 | SE 12 | ESE 11 | — | — | — |
7 | 6 | 14 | 13 | 5 | 35 | 22 | — | 4 | 55 | 47 | — | — | — | 42 | 93 | 6 | 24 | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | ESE 3 | — | W 3 | SSW 4 | — | — | — | — | — | — | — | SW 4 | SSW 10 | — | — | — | — | — | ESE 8 | ESE 5 |
— | 3 | — | 8 | 11 | — | — | — | — | — | — | — | 7 | 510 | — | — | — | — | — | 83 | 78 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 20 | 0 | 20 | 78 | 0 | 40 | 40 | 20 | 0 | 20 | 0 | 0 | 124 | 58 | 0 | 78 | 125 | 20 | 40 | 20 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Praia do Aventureiro Surf forecast
The above surf forecast table for Praia do Aventureiro provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Aventureiro can be found by selecting the local surf guide option on the grey menu. Our Praia do Aventureiro 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 (Praia do Aventureiro) 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 Praia do Aventureiro 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.



