Surf Forecasts:
Praia do Porto surf forecast from 25 Aug 2026:
- Best quality surf: Monday 31 Aug, 12AM (local time) - 6.5ft (2.0m), 9s period, E swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 6AM (local time) - 7.5ft (2.3m), 15s period, SSE swell with 2,242 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 6PM (local time) - 6.5ft (2.0m), 8s period with ENE swell.
Best Forecast Surf Conditions for Praia do Porto this week:
The surf forecast for Praia do Porto over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 6PM. The primary swell is predicted to be 2.0m and 8s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia do Porto in the next 16 days are 2.3m 15s and forecast to arrive on Wednesday (Aug 26) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 29) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 28th Aug) | 6.5ft (2.0m) 8s |
| Best Surf | 12AM (Mon 31st Aug) | 6.5ft (2.0m) 9s |
| Most Powerful | 6AM (Wed 26th Aug) | 7.5ft (2.3m) 15s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, Rusty here, checkin’ out the surf at Praia do Porto for the next couple of weeks. The best waves are gonna be the weekend just ahead and then early the following week.
Water temp is about 19°, which is pretty average for the time of year, nothin’ weird.
The main standout is Saturday morning, the 29th of August. We’ve got a 6ft swell from the ENE, with a 9-second period, and the wind is glassin’ it off from the SW. That’s offshore, clean, and the combined energy of all swells is 452, moderate. It’s not massive, but it’s gonna be clean and fun. Saturday afternoon stays clean too, with a 6ft ENE swell, and the wind goes to a light cross-off from the SSE.
Sunday, the 30th, is also a good call. Morning has a light rain, wind from the SW at 6 mph, and a clean 5ft swell from the ENE. The energy is 403, still moderate. The afternoon gets glassy with a light SSW wind, 5ft ENE swell, and the energy drops to 367. Still good.
Monday, the 31st of August, keeps the run goin’. Morning is clean, cross-off wind from the south, 5ft ENE swell, and the energy is 481. The afternoon gets a bit better with a 6ft ENE swell, a gentle offshore from the SSW, and the energy building to 594. That’s a solid day.
Now, the week before that? Tuesday through Thursday, the 25th to the 27th, is pretty poor. Tuesday morning has a 6ft S swell with 12 seconds, and the wind is glassy from the NNW, so the energy is a strong 1102. But the rest of the week is all onshore, choppy, and messy. The swell direction is coming from the SSE and NE, and the wind just ruins it. Wednesday morning has a 8ft SSE swell with 14 seconds, energy at 2166, but it’s cross-onshore and choppy. Not for the faint of heart.
Friday, the 28th, is similar. Morning has a 6ft NE swell with a short 8-second period, energy at 511, but the wind is cross-onshore from the NNE. The afternoon is onshore, 7ft NE swell, 8 seconds, energy 611. Not great.
Then we get a bit of a gap. Tuesday, the 1st of September, has a 7ft SSE swell with an 8-second period, and the wind is a cross-off from the south, so it’s clean but the swell is short-period and a bit lumpy. The energy is 638, moderate. Wednesday, the 2nd of September, is a morning with a 7ft SE swell, 9 seconds, but the wind is onshore from the NE. The afternoon is onshore too.
Thursday, the 3rd of September, the afternoon cleans up. A 4ft ESE swell with 10 seconds, cross-off wind from the south, and the energy is 387. It’s small but clean. Friday, the 4th, the morning is glassy with a 3ft ESE swell, 10 seconds, energy 246. That’s surfable but ordinary.
The second week, the 5th to the 9th of September, is mostly onshore and messy. Saturday the 5th is poor, Sunday the 6th has a 7ft NE swell, 8 seconds, but the wind is onshore. The energy is 687, moderate, but the wind is a killer. Monday the 7th of September has a promising morning: a 6ft ENE swell, 9 seconds, and a cross-off wind from the SSW, energy 620. That’s a clean, fun session, but the afternoon gets a bit cross-shore.
Tuesday the 8th is a morning with a 6ft NE swell, 9 seconds, energy 1014, but the wind is onshore. The afternoon is poor. Wednesday the 9th is all onshore, small, and not worth it.
So, the pick of the window is Saturday morning, the 29th of August, with the 6ft ENE swell, glassy offshore wind, and clean waves. The weekend is your best bet. After that, Monday the 7th of September is a decent second option.
Keep in mind, the longer-range stuff on the 7th is a bit less certain, but it’s lookin’ good.
Rusty, out.
Short Range ForecastMostly dry. Warm (max 29°C on Fri morning, min 13°C on Tue night). Winds increasing (light winds from the N on Tue night, fresh winds from the NNE by Thu afternoon). | Days 5-7 Weather SummaryHeavy rain (total 52mm), heaviest during Mon morning. Warm (max 29°C on Fri afternoon, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | ||||||||||||||
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 | SSE 16 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | NE 7 | NE 8 | NE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | ESE 7 | ENE 8 | E 8 |
Wave Graph | ||||||||||||||||||||
926 | 788 | 2152 | 2152 | 1822 | 979 | 690 | 362 | 423 | 585 | 475 | 454 | 485 | 424 | 315 | 308 | 664 | 455 | 614 | 401 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on | off | cross-off | off | glassy | on | cross-off | off | off | cross-off |
High Tide | 00:48AM0.58m | 1:57PM0.61m | 1:34AM0.63m | 2:30PM0.65m | 2:16AM0.67m | 2:59PM0.67m | 2:52AM0.70m | 3:26PM0.67m | 3:24AM0.71m | 3:53PM0.64m | 3:56AM0.68m | 4:21PM0.59m | ||||||||
Low Tide | 7:05PM0.14m | 7:16AM-0.02m | 7:40PM0.12m | 7:51AM-0.04m | 8:09PM0.11m | 8:21AM-0.04m | 8:34PM0.12m | 8:47AM-0.02m | 8:55PM0.13m | 9:12AM0.03m | 9:11PM0.14m | 9:35AM0.09m | 9:19PM0.16m | |||||||
— | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | |
5:57 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 6 | 19 | 24 | 15 | 2 |
Temp °C | 17 | 15 | 21 | 21 | 17 | 23 | 24 | 19 | 29 | 29 | 21 | 23 | 21 | 19 | 19 | 19 | 19 | 18 | 18 | 18 |
Feels °C | 14 | 13 | 18 | 17 | 15 | 20 | 21 | 17 | 27 | 28 | 24 | 24 | 21 | 20 | 22 | 21 | 20 | 19 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | — | ENE 8 | E 8 |
926 | 686 | 2152 | 2152 | 1822 | 979 | 690 | 278 | 119 | 68 | 475 | 454 | 485 | 424 | 315 | 308 | 274 | — | 614 | 401 | |
Swell 2 Height (m) Direction Period (s) | — | SSE 16 | — | — | — | — | — | — | — | — | SSE 10 | SSE 10 | SSE 10 | SSE 11 | S 6 | SSE 6 | SE 6 | — | SE 7 | SSE 7 |
— | 788 | — | — | — | — | — | — | — | — | 42 | 20 | 10 | 11 | 25 | 34 | 95 | — | 209 | 75 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 7 | SSE 10 | SSE 10 | SE 10 | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 | 10 | 4 | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 4 | NNE 4 | NE 4 | NE 5 | NE 6 | NE 6 | NE 7 | NE 8 | NE 8 | — | SSW 4 | SSW 4 | SSW 4 | — | — | E 9 | ESE 7 | — | — |
6 | 10 | 16 | 41 | 74 | 132 | 206 | 362 | 423 | 585 | — | 8 | 7 | 5 | — | — | 664 | 455 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 126 | 2 | 2 | 51 | 51 | 74 | 14 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Praia do Porto Surf forecast
The above surf forecast table for Praia do Porto 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 Porto can be found by selecting the local surf guide option on the grey menu. Our Praia do Porto 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 Porto) 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 Porto 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 do Porto is 2 km (1 miles) from Imbituba. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Imbituba. Imbituba has rooms for a wide range of budgets as well as car hire and transport links.











