Surf Forecasts:
Praia da Baleia surf forecast from 20 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 12AM (local time) - 8ft (2.5m), 15s period, S swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 8ft (2.5m), 16s period, S swell with 3,388 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 9PM (local time) - 1.5ft (0.4m), 10s period with S swell.
Best Forecast Surf Conditions for Praia da Baleia this week:
The surf forecast for Praia da Baleia over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 20) at 9PM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.6m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia da Baleia in the next 16 days are 2.5m 16s and forecast to arrive on Monday (Aug 24) at 9PM. 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 21) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 20th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 12AM (Tue 25th Aug) | 8ft (2.5m) 15s |
| Most Powerful | 9PM (Mon 24th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Praia da Baleia over the next 16 days.
The Lowdown
Alright, Rusty here. Let's get into it. The first few days are pretty ordinary, but we've got a couple of proper sessions shaping up that are worth pointing the car at.
It kicks off with a bit of a fizzle. Thursday afternoon through Friday is all small and messy, not worth paddling out for. You're dealing with weak, cross-onshore slop that's barely moving. Better to wait.
Then Saturday 22nd morning, things turn around sharpish. Praia da Baleia is a beach and point setup exposed to the south, and we've got a clean 6ft S groundswell rolling in with a solid 11-second period. The best part? Glassy conditions, not a breath of wind. That's a proper dawny right there. The combined swell energy is kicking at 660 (moderate energy), and the water is a touch warmer than normal for late August. Crowds can pop up here sometimes, but with conditions that clean, it’ll be worth sharing the lineup.
The standout window, though, is from Monday 24th into Tuesday 25th. Monday afternoon sees the swell pumping up to 8ft from the south with a long 14-second period. That’s a lot of water moving. The combined energy hits 2524 (strong), so expect proper power. This is skilled surfer territory—over 8ft means it’s for the experienced crew. But the real gem is Tuesday 25th morning: a glassy 7ft S swell, 14-second period, and offshore winds. Excellent conditions for those who know what they’re doing. The water temperature anomaly is about average for this time of year, so nothing unusual there.
Wednesday 26th morning holds onto that quality with a clean 6ft S groundswell, the period stretching out to a very long 16 seconds. That kind of period can make beach breaks a bit straight, but at a point setup like Baleia, it’s going to run and offer up some proper lines. Combined energy is 1776 (strong), and the glassy wind is a massive plus. This is also only for solid surfers.
After that, things wind down. From Thursday 27th onward, the size drops and the wind starts to mess with the shape a bit. There’s a small window on Saturday 29th morning with a cross-off breeze cleaning up a 4ft E swell, but it’s nothing that’ll get the heart racing. The last real pulse of interest is on Thursday morning, September 3rd—a glassy 7ft S groundswell with a very long 16-second period, putting the combined energy at 1963. That’s a full two weeks out, so call it a promising long-range prospect rather than a sure thing, but it looks like a late-season gem if it holds.
So, to sum it up: the pick of the bunch is Tuesday 25th morning for the expert crew, with Saturday 22nd morning as a solid warm-up for everyone else.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 17°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Mon morning. Warm (max 23°C on Wed morning, min 17°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | E 7 | SSW 10 | SSW 9 | SSW 6 | SSW 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 13 | SSE 14 | S 14 | S 15 | S 14 | S 14 | S 13 | S 16 | SSE 14 | SSE 13 |
Wave Graph | ||||||||||||||||||||
26 | 33 | 70 | 165 | 166 | 649 | 603 | 432 | 356 | 394 | 734 | 2284 | 2452 | 2981 | 1797 | 1391 | 976 | 1589 | 1344 | 929 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-on | cross | glassy | glassy | on | cross | glassy | on | cross-on | on | cross-on | glassy | glassy | glassy | glassy | glassy | on | cross-off |
High Tide | 6:07PM0.77m | 8:37AM0.70m | 12:46PM0.75m | 6:56PM0.68m | 1:04PM0.86m | 00:18AM0.70m | 1:25PM0.95m | 00:48AM0.81m | 1:46PM1.03m | 1:12AM0.93m | 2:06PM1.10m | 1:35AM1.04m | 2:25PM1.15m | 1:58AM1.14m | ||||||
Low Tide | 2:31AM0.45m | 9:07AM0.70m | 4:40PM0.66m | 4:38AM0.41m | 6:14PM0.58m | 5:54AM0.32m | 6:53PM0.48m | 6:44AM0.20m | 7:23PM0.40m | 7:23AM0.10m | 7:52PM0.33m | 7:58AM0.01m | 8:21PM0.27m | |||||||
— | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | |
5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:49 | — | |
mm | — | — | — | — | — | — | — | — | — | 1 | 7 | 5 | 3 | 1 | — | 1 | — | — | 4 | 1 |
Temp °C | 28 | 25 | 24 | 19 | 18 | 19 | 19 | 17 | 21 | 20 | 18 | 18 | 17 | 17 | 19 | 19 | 19 | 23 | 22 | 20 |
Feels °C | 29 | 23 | 23 | 19 | 18 | 19 | 19 | 17 | 21 | 21 | 18 | 18 | 17 | 17 | 21 | 21 | 21 | 25 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 4 | E 4 | E 7 | E 8 | SSW 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 13 | SSE 14 | S 14 | S 15 | S 14 | S 14 | S 13 | S 16 | SSE 14 | SSE 13 |
3 | 18 | 51 | 57 | 166 | 649 | 603 | 432 | 356 | 394 | 734 | 2284 | 2452 | 2981 | 1797 | 1391 | 976 | 1589 | 1344 | 929 | |
Swell 2 Height (m) Direction Period (s) | S 11 | SSW 10 | — | S 15 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | S 14 | — | — | — | — | — | SSE 18 | — | — | — |
22 | 33 | — | 4 | 32 | 11 | 4 | 9 | 4 | 4 | 232 | — | — | — | — | — | 348 | — | — | — | |
Swell 3 Height (m) Direction Period (s) | SE 12 | E 7 | S 16 | — | S 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
6 | 15 | 5 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 7 | — | SSW 9 | SSW 6 | — | — | — | — | E 4 | ESE 4 | ESE 4 | ESE 4 | SE 5 | E 5 | E 5 | ESE 4 | E 5 | E 6 | E 6 | E 6 |
26 | — | 70 | 165 | — | — | — | — | 10 | 21 | 40 | 42 | 72 | 27 | 22 | 36 | 59 | 187 | 165 | 211 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 0 | 68 | 442 | 0 | 0 | 6 | 2 | 0 | 6 | 6 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 40 | 0 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Praia da Baleia Surf forecast
The above surf forecast table for Praia da Baleia provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia da Baleia can be found by selecting the local surf guide option on the grey menu. Our Praia da Baleia 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 da Baleia) 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 da Baleia 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.
Praia da Baleia is 26 km (16 miles) from Sao Sebastiao. If you plan a holiday in São Paulo, look for hotels and other accommodation in Sao Sebastiao. Sao Sebastiao has rooms for a wide range of budgets as well as car hire and transport links.











