Surf Forecasts:
Praia do Aventureiro surf forecast from 18 Aug 2026:
- Best quality surf: Saturday 22 Aug, 9PM (local time) - 5ft (1.5m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 8ft (2.4m), 14s period, S swell with 2,346 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 6PM (local time) - 3ft (0.9m), 7s period with ESE 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 Tuesday (Aug 18) at 6PM. The primary swell is predicted to be 0.9m and 7s period with a secondary swell of 0.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia do Aventureiro in the next 16 days are 2.4m 14s and forecast to arrive on Monday (Aug 24) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Friday (Aug 21) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Tue 18th Aug) | 3ft (0.9m) 7s |
| Best Surf | 9PM (Sat 22nd Aug) | 5ft (1.5m) 10s |
| Most Powerful | 9PM (Mon 24th Aug) | 8ft (2.4m) 14s |
Table - best surf conditions forecast for Praia do Aventureiro over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what Praia do Aventureiro has in store for us over the next couple of weeks.
Right off the bat, it’s a bit of a slow start. The first few days are pretty ordinary with small, weak swell. The water’s sitting at 72°, which is a touch warmer than usual for this time of year, so that’s something.
Tuesday the 18th kicks things off with a tiny 4ft swell from the ESE, but the period is a short 8 seconds and the energy is only moderate (203). The morning is glassy though, with a light ENE breeze, so it’s clean but weak. By the afternoon, it gets worse as the wind swings cross-on. Wednesday and Thursday are similar – small, weak, and not worth getting excited about.
We finally see a bit of life on Friday morning the 21st. We’ve got a 4ft easterly swell with an 8-second period, and it’s glassy with a light west wind. The energy is moderate (167). It’s not a standout, but it’s the first session that feels surfable.
The real action starts to build from the 22nd. Saturday the 22nd sees a jump in size, with the afternoon pushing 6ft from the south, a 10-second period, and the energy getting strong at 609. The wind is cross-off, so it’s clean, but this is getting into the size range that’s better for more experienced surfers. The swell direction is south, but this break really likes it from the east, so it’s not breaking perfectly.
Sunday the 23rd is similar, with a bit less energy, but still some punch.
Now, here’s where it gets interesting. Monday the 24th has a solid 6ft south swell with a 12-second period, and the energy is pumping at 1072. It’s a long-period groundswell, which is great for the point setup here, but the cross-onshore wind is spoiling it a bit, making it choppy.
The real standout for the whole forecast is Tuesday morning the 25th of August. We’ve got a chunky 7ft south swell with a very long 13-second period, and the energy is massive at 1717. This is serious power. The wind is onshore from the ENE though, so it’s going to be pretty bumpy. This is a big, powerful, long-period swell – it’s going to be a challenge, and only for the experts with some serious paddle fitness. The afternoon has the wind picking up even more, so the morning is your only shot.
The conditions clean up beautifully on Wednesday the 26th of August. The swell drops to a more manageable 5ft from the south, still with a nice 12-second period and strong energy (724). The wind goes glassy from the NE this morning. This is your call. Clean, lined-up waves, good energy, and that long period means proper, powerful walls on the point. It’s the best balance of size and quality all week. Get on it.
After that, things slowly taper off. Thursday the 27th is smaller and a bit messy. Friday and Saturday are tiny and poor. Sunday the 30th has a glimmer of hope in the afternoon with a 4ft south swell and a cross-off breeze, giving clean but small waves.
Looking into the second week, Monday the 31st of August has a punchy 6ft swell in the morning with glassy conditions – that’s a solid, clean session. Tuesday the 1st of September is also promising with a glassy morning and a 5ft SSW swell. Then Wednesday the 2nd of September brings another 7ft swell from the SE, which is a better direction for this spot, and with a cross-off wind, it’s going to be clean and powerful. That could be a late-season gem, but it’s further out so keep an eye on it.
In summary, the first week is a slow burner, with Wednesday the 26th being the clear pick for quality and fun. The second week has a couple of solid, clean days as well, but nothing that quite matches that Wednesday glass.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed morning, min 21°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Fri night. Warm (max 27°C on Fri morning, min 17°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | ESE 8 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 8 | E 8 | SSW 7 | S 8 | S 10 | S 10 | S 9 | S 9 | S 11 | S 11 | S 12 | S 14 |
Wave Graph | |||||||||||||||||||||
169 | 109 | 89 | 89 | 69 | 51 | 37 | 47 | 210 | 138 | 95 | 176 | 163 | 598 | 441 | 281 | 276 | 585 | 724 | 1071 | 2186 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | glassy | on | cross-off | cross-off | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 5:22PM0.90m | 5:59AM0.89m | 5:51PM0.83m | 6:56AM0.77m | 6:25PM0.74m | 12:18PM0.75m | 7:38PM0.66m | 12:49PM0.85m | 11:56PM0.71m | 1:15PM0.94m | 00:36AM0.82m | 1:40PM1.02m | 1:06AM0.92m | ||||||||
Low Tide | 12:18PM0.42m | 00:19AM0.35m | 1:00PM0.53m | 1:18AM0.40m | 2:30PM0.62m | 2:58AM0.42m | 4:47PM0.63m | 4:46AM0.39m | 6:21PM0.55m | 6:02AM0.30m | 7:01PM0.47m | 6:51AM0.19m | 7:31PM0.39m | ||||||||
6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | |
— | 5:42 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:44 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | — | — | 3 | 2 | 2 | — |
Temp °C | 25 | 24 | 25 | 27 | 27 | 24 | 22 | 22 | 25 | 27 | 21 | 20 | 19 | 19 | 18 | 18 | 19 | 18 | 18 | 18 | 18 |
Feels °C | 25 | 25 | 25 | 26 | 27 | 25 | 23 | 23 | 23 | 26 | 19 | 18 | 17 | 17 | 16 | 18 | 18 | 18 | 17 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | ESE 7 | E 8 | E 8 | SSW 7 | S 8 | S 10 | S 10 | S 9 | S 9 | S 11 | S 11 | S 12 | S 14 |
169 | 109 | 89 | 89 | 69 | 51 | 37 | 47 | 75 | 138 | 95 | 176 | 163 | 598 | 441 | 281 | 276 | 585 | 724 | 1071 | 2186 | |
Swell 2 Height (m) Direction Period (s) | S 10 | SSE 9 | S 11 | S 9 | S 10 | SE 13 | SE 12 | S 12 | S 11 | SSW 9 | S 15 | E 9 | E 8 | E 8 | E 8 | E 8 | S 12 | E 8 | E 7 | E 7 | — |
31 | 29 | 9 | 7 | 2 | 7 | 6 | 3 | 20 | 29 | 4 | 54 | 21 | 11 | 5 | 5 | 109 | 4 | 1 | 1 | — | |
Swell 3 Height (m) Direction Period (s) | SE 9 | SSE 9 | SSE 8 | SE 14 | SE 13 | S 10 | S 9 | SE 12 | SE 11 | NW 3 | — | S 14 | S 13 | — | — | S 15 | E 8 | — | — | — | — |
3 | 8 | 7 | 7 | 7 | 2 | 2 | 6 | 5 | 2 | — | 4 | 3 | — | — | 4 | 5 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | E 7 | — | SSW 9 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 210 | — | 82 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 78 | 61 | 0 | 78 | 0 | 61 | 144 | 61 | 0 | 78 | 70 | 70 | 78 | 0 | 20 | 40 | 20 | 40 | 20 | 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.




