
Surf Forecasts:
Piratininga surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 12AM (local time) - 3ft (0.9m), 16s period, S swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 6AM (local time) - 4.5ft (1.3m), 15s period, S swell with 706 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 9AM (local time) - 3.5ft (1.1m), 12s period with S swell.
Best Forecast Surf Conditions for Piratininga this week:
The surf forecast for Piratininga over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 9AM. The primary swell is predicted to be 1.1m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Piratininga in the next 16 days are 1.3m 15s and forecast to arrive on Friday (Sep 11) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Sep 14) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 10th Sep) | 3.5ft (1.1m) 12s |
| Best Surf | 12AM (Fri 11th Sep) | 3ft (0.9m) 16s |
| Most Powerful | 6AM (Fri 11th Sep) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Piratininga over the next 16 days.
The Lowdown
Rusty here with the lowdown on our local stretch for the next couple of weeks. It's all about Piratininga, so that's our focus.
Water temp is a pleasant 73°, a touch warmer than average for this time of year, which is a nice bonus.
The first real chance to paddle out is on Thursday the 10th. The morning's looking decent with a clean cross-off breeze from the NNW. We're seeing a 4ft south swell with a nice 12-second period. The combined energy is moderate at 354, so nothing huge, but there'll be some fun ones. It's clean and glassy. A good start for the beginner-plus crowd this place is known for. The afternoon turns ugly with thunderstorms and a cross-on wind, so that early window is your only shot.
Friday the 11th is a dud. Cross-on winds and rough conditions. The swell is a touch bigger, 4ft from the south, with a solid 14-second period giving it a combined energy of 583. But the wind's just wrecking it.
Saturday the 12th is flat and choppy. Tiny swell, messy winds. Skip it.
Sunday the 13th is where we wake up. The morning is still average, but the afternoon brings the goods. A south-southwest swell builds to 6ft, with a 10-second period, giving a combined energy of 550. The wind swings clean cross-off from the southeast, and conditions will be very clean. This is our first standout.
Monday the 14th is another good morning with offshore winds from the NE. The swell is 6ft from the south-southeast, but it's a short 8-second period, so it'll be a little lumpy, but still fun. The heavy rain in the afternoon spoils it.
The absolute standout of this whole forecast is Thursday the 17th. The morning has offshore winds from the east-northeast, perfectly clean. We've got a solid 5ft south swell with a 13-second groundswell period—that's the real deal, giving us a strong combined energy of 748. The afternoon is just as good, with a 5ft south swell at 12 seconds, pushing the energy up to 946. For this spot, this is as good as it gets. It'll be firing.
Friday the 18th is still very solid and clean, though the wind picks up a bit in the afternoon.
We wind down after that. Saturday the 19th has a special moment in the afternoon with glassy conditions, a light southerly breeze, and a clean 3ft south swell with a very long 15-second period. It's not big, but it'll be buttery smooth.
From Monday the 22nd onward, it's mostly flat. Tiny, weak swells and messy winds take over until the 24th and 25th, which are both small and weak or too windy to bother with. There's a tiny 3ft swell on the 25th, but strong winds ruin it.
So, to boil it down: your top picks are Sunday the 13th afternoon and that epic window on Thursday the 17th. If you can only make one session, the 17th is the one. Get after it.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Thu night. Warm (max 27°C on Thu morning, min 20°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 74mm), heaviest during Mon night. Warm (max 20°C on Sun morning, min 18°C on Sun night). Winds decreasing (fresh winds from the ESE on Sun night, calm by Mon afternoon). | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 12 | S 12 | S 16 | S 14 | S 13 | S 12 | S 12 | S 11 | SSW 6 | SSW 9 | S 10 | SSE 9 | SSE 8 | SSE 8 | S 12 | S 11 | S 10 | SW 8 | S 8 | S 11 | S 11 |
Wave Graph | |||||||||||||||||||||
347 | 359 | 406 | 577 | 495 | 235 | 134 | 86 | 80 | 367 | 550 | 540 | 403 | 246 | 268 | 229 | 113 | 335 | 411 | 610 | 279 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross-on | cross-off | cross-off | cross | cross-on | on | cross | cross-off | cross-off | off | cross-off | cross-on | cross-off | on | on | on | cross | cross-off |
High Tide | 3:06PM0.84m | 00:21AM0.94m | 3:50PM0.83m | 2:38AM0.94m | 4:26PM0.84m | 4:13AM0.96m | 4:54PM0.85m | 5:06AM0.99m | 5:12PM0.86m | 5:52AM1.00m | 5:20PM0.89m | 6:33AM1.00m | 5:39PM0.92m | ||||||||
Low Tide | 7:29PM0.29m | 8:05AM0.02m | 8:20PM0.24m | 8:57AM0.06m | 9:11PM0.17m | 9:47AM0.08m | 10:02PM0.09m | 10:35AM0.11m | 10:51PM0.02m | 11:23AM0.12m | 11:40PM-0.04m | 12:10PM0.13m | 00:28AM-0.07m | ||||||||
5:54 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:48 | — | — | |
— | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | 4 | 26 | — | — | — | — | — | 2 | — | 4 | 10 | 12 | 12 | 29 | 4 | 2 | 1 | 3 | 3 | 1 |
Temp °C | 27 | 25 | 23 | 23 | 24 | 27 | 26 | 22 | 20 | 20 | 19 | 19 | 19 | 18 | 19 | 20 | 20 | 20 | 20 | 20 | 20 |
Feels °C | 30 | 27 | 24 | 26 | 25 | 29 | 28 | 22 | 19 | 19 | 19 | 17 | 20 | 18 | 20 | 19 | 18 | 20 | 20 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 16 | S 14 | S 13 | S 12 | S 12 | S 11 | SSW 6 | SSW 9 | S 10 | SSE 9 | SSE 8 | SSE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 8 | S 8 | S 11 | S 11 |
347 | 359 | 406 | 577 | 495 | 235 | 134 | 86 | 80 | 367 | 550 | 540 | 403 | 246 | 199 | 213 | 175 | 333 | 411 | 610 | 279 | |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | S 12 | E 8 | E 8 | E 8 | E 8 | ESE 8 | S 11 | ESE 9 | ESE 9 | S 17 | S 14 | ESE 7 | S 12 | S 11 | S 10 | ESE 8 | ESE 8 | ESE 8 | SE 9 |
49 | 54 | 224 | 29 | 31 | 30 | 48 | 22 | 58 | 15 | 26 | 6 | 32 | 105 | 268 | 229 | 113 | 92 | 58 | 35 | 62 | |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 13 | E 8 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | E 8 | — | — | S 17 | S 16 | S 14 | SSE 9 | SSE 9 | SSE 12 | SE 10 | SE 10 | ESE 12 | ESE 8 |
7 | 7 | 45 | 6 | 6 | 5 | 5 | 5 | 13 | — | — | 6 | 20 | 57 | 62 | 8 | 49 | 23 | 15 | 15 | 20 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 8 | — | W 2 | SW 4 | — | — | — | ESE 8 | E 7 | E 7 | E 7 | N 3 | SW 4 | SW 8 | — | — | SSE 6 |
— | — | — | — | 94 | — | 1 | 20 | — | — | — | 22 | 193 | 220 | 285 | 1 | 12 | 335 | — | — | 50 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 36 | 0 | 36 | 11 | 0 | 4 | 822 | 131 | 36 | 0 | 36 | 0 | 4 | 47 | 0 | 104 | 104 | 104 | 36 | 0 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Piratininga Surf forecast
The above surf forecast table for Piratininga provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Piratininga can be found by selecting the local surf guide option on the grey menu. Our Piratininga 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 (Piratininga) 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 Piratininga 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.
Are you planning a holiday in Rio de Janeiro? If you are looking for accommodation near Piratininga, camping, hotels and holiday cottages in Rio de Janeiro, consider staying in Niteroi which is 10 km (6 miles) away. Other places in and around Rio de Janeiro where you can find information about places to rent, and car hire include Sao Goncalo which is 19 km (12 miles) away, Marica, Rio de Janeiro and Itaborai.










