Surf Forecasts:
Praia do Porto surf forecast from 13 Aug 2026:
- Best quality surf: Thursday 13 Aug, 12PM (local time) - 6.5ft (2.0m), 14s period, S swell with offshore winds.
- Most powerful swell: Thursday 13 Aug, 6PM (local time) - 7ft (2.1m), 13s period, S swell with 1,514 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 12PM (local time) - 6.5ft (2.0m), 14s period with S 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 Thursday (Aug 13) at 12PM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 0.4m and 5s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Praia do Porto in the next 16 days are 2.1m 13s and forecast to arrive on Thursday (Aug 13) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Tuesday (Aug 18) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 13th Aug) | 6.5ft (2.0m) 14s |
| Best Surf | 12PM (Thu 13th Aug) | 6.5ft (2.0m) 14s |
| Most Powerful | 6PM (Thu 13th Aug) | 7ft (2.1m) 13s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Praia do Porto has got cookin’ for us.
We’ve got a bit of a slow start, but don’t write this stretch off. The first real action kicks off later this week, with building energy. There’s a big pulse of swell coming through in the second week that’s got some serious potential, though we’ll have to keep an eye on the wind. Let’s break it down.
Thursday 13th August is where we get going. Morning session is looking *sweet*. We’ve got a solid 7ft S’ly groundswell rolling in with that 14-second period, and a light 6 mph offshore breeze from the SW keeping things clean. The water’s sitting at 66°, which is pretty normal for this time of year. The wave energy is strong – reading 1587 – so there’s plenty of push. This is excellent, but it’s a bit more size and power than the average punter wants. More for the experienced crew. By the afternoon, we drop to 6ft, still from the S with 13-second period. The wind swings SSW but stays offshore. It’ll clean up nicely, making for some very good waves if you can get on it.
Friday 14th gets messy. We’ve got solid 6ft to 7ft SSE swell, but the wind turns cross-onshore from the E and ENE. It’s gonna be choppy. Saturday 15th is one to sleep in. The wind is junk, and the swell drops off into the 4ft to 5ft range with that NE onshore flow. It’s a write-off.
Sunday 16th and Monday 17th are no good either. The swell sticks around 5ft to 7ft, but it’s a short-period, wind-affected mess from the ENE. Strong onshore winds in the 12-16 mph range make for poor conditions. Kite surfers might have a field day, but for a paddle surfer, it’s a hard pass.
We get a nice little reprieve on Tuesday 18th. The morning has clean 5ft waves from the ENE, but *finally* the wind is a light offshore from the SW again. Glassy conditions. The energy is moderate (360), but the quality makes up for it. A good, fun, manageable option for the keen. The afternoon holds up with 5ft and a moderate offshore.
Wednesday 19th through Friday 21st is a mixed bag of average to poor conditions. The swell is there but the wind is just never lining up. You get a bit of glass on the afternoon of the 20th, but it’s just 5ft with a short period, making for very ordinary surf.
Saturday 22nd August is our first real standout window. The morning is *flat-out perfect* conditions. Glassy, as calm as it gets, with a clean 5ft S’ly swell at 10 seconds. The energy reading is 570 (moderate). This is the sweet spot for a wide range of surfers. The afternoon stays clean but the wind gets a little light cross-onshore.
Sunday 23rd keeps the quality up. It’s a bit smaller in the morning (4ft), but that S’ly swell is building again. The afternoon sees 5ft from the S with a nice 12-second period and a cross-offshore breeze. Very good conditions are on the cards.
Alright, here’s the big one. Monday 24th August. This is the standout. Morning starts with a pumping 6ft S’ly swell, 12-second period, and a light offshore wind. Clean as a whistle. The afternoon is the *pick of the forecast*: 7ft of S’ly groundswell with a 13-second interval and light 6 mph offshore breeze. The wave energy is roaring at 1449. This is excellent surf, though the size pushes it into experienced territory. If you’ve got the skills, this is your window.
Tuesday 25th hangs in there with a solid 8ft S’ly groundswell in the afternoon, but the wind is a touch cross-onshore. The energy is a massive 3673, meaning there’s *plenty* of power, but the conditions won’t be pristine. This is for the die-hards only.
After that, the winds go messy again from the 26th through the 28th. We get some clean, smaller waves on the Friday 28th morning to finish the run – 4ft S’ly swell with offshore wind – a nice, easy way to end the outlook.
The call: The absolute best on offer is Monday 24th August. The 7ft S’ly groundswell, with that long 13-second period and light offshore wind, has the potential for some seriously good, powerful walls. For those looking for something a bit more user-friendly, Saturday 22nd August morning with its glassy 5ft waves is the go-to. Keep in mind for the Monday that this is a bit sizey – not for the beginners.
Rusty
Short Range ForecastHeavy rain (total 53mm), heaviest during Fri night. Very mild (max 19°C on Sat afternoon, min 16°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sun morning. Warm (max 25°C on Mon morning, min 17°C on Tue night). Winds decreasing (fresh winds from the NNE on Sun night, calm by Tue night). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | ENE 8 | ENE 7 |
Wave Graph | |||||||||||||||||||||
1576 | 1303 | 1344 | 1127 | 1430 | 773 | 456 | 308 | 408 | 338 | 527 | 606 | 612 | 715 | 561 | 343 | 301 | 254 | 160 | 287 | 237 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | off | off | off | on | on | on |
High Tide | 3:24PM0.65m | 2:58AM0.68m | 3:44PM0.64m | 3:30AM0.69m | 4:05PM0.61m | 4:01AM0.67m | 4:29PM0.58m | 4:36AM0.63m | 4:56PM0.54m | 5:22AM0.56m | 5:34PM0.49m | 00:07AM0.22m | 6:24AM0.50m | 6:24PM0.45m | |||||||
Low Tide | 8:52PM0.17m | 9:05AM-0.03m | 9:16PM0.18m | 9:35AM0.03m | 9:37PM0.18m | 10:07AM0.10m | 9:54PM0.19m | 10:53AM0.18m | 9:49PM0.20m | 11:51AM0.24m | 9:43PM0.20m | 9:36AM0.29m | 12:35PM0.29m | 10:01PM0.21m | |||||||
6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | |
— | 5:51 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | 3 | 3 | 13 | 4 | 10 | 14 | 2 | 3 | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 18 | 19 | 19 | 19 | 25 | 23 | 20 | 22 | 23 | 18 | 20 | 21 | 18 |
Feels °C | 16 | 17 | 17 | 17 | 16 | 16 | 19 | 19 | 16 | 18 | 18 | 17 | 24 | 22 | 22 | 20 | 22 | 18 | 19 | 19 | 17 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 13 | SSE 13 | SSE 13 | SSE 13 | ESE 8 | E 8 | E 8 | SSE 11 | E 8 | SSE 10 | S 10 | SSE 10 | SSE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | SSE 7 | S 8 | S 8 |
1576 | 1303 | 1344 | 1127 | 1430 | 507 | 387 | 308 | 191 | 338 | 108 | 74 | 34 | 22 | 561 | 343 | 301 | 254 | 149 | 104 | 33 | |
Swell 2 Height (m) Direction Period (s) | NE 5 | ENE 5 | NE 6 | — | — | S 12 | S 12 | S 11 | S 11 | SSE 10 | S 10 | — | — | SE 10 | S 11 | S 10 | S 9 | S 7 | ENE 8 | SE 6 | SSE 13 |
11 | 10 | 8 | — | — | 773 | 456 | 297 | 231 | 110 | 135 | — | — | 4 | 20 | 17 | 7 | 107 | 160 | 24 | 33 | |
Swell 3 Height (m) Direction Period (s) | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | SE 8 | — | — | E 14 | SE 12 | SE 13 | SE 13 |
— | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 4 | 6 | 7 | 7 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 6 | ESE 7 | ESE 7 | — | — | NE 5 | ENE 8 | NE 5 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | SW 3 | SSW 5 | SSW 6 | — | NE 3 | ENE 8 | ENE 7 |
— | — | 11 | 333 | 319 | — | — | 47 | 408 | 51 | 527 | 606 | 612 | 715 | 2 | 48 | 53 | — | 3 | 287 | 237 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 9 | 51 | 2 | 2 | 14 | 58 | 2 | 69 | 116 | 2 | 2 | 0 | 0 | 0 | 2 | 2 | 2 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
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 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.











