
Surf Forecasts:
Praia do Porto surf forecast from 15 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 6PM (local time) - 5.5ft (1.7m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 6PM (local time) - 7.5ft (2.3m), 8s period, NE swell with 778 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 9PM (local time) - 4ft (1.2m), 6s 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 Tuesday (Sep 15) at 9PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 1.1m and 6s. Another secondary swell of 0.7m and 10s is also forecast. 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 2.3m 8s and forecast to arrive on Sunday (Sep 20) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 15th Sep) | 4ft (1.2m) 6s |
| Best Surf | 6PM (Wed 16th Sep) | 5.5ft (1.7m) 9s |
| Most Powerful | 6PM (Sun 20th Sep) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s cookin’ at Praia do Porto. First things first, don’t be fooled by the water temp sittin' at 62°F, which is a good 4°F chillier than normal for this time of year – you’ll be wantin’ a decent wetsuit.
The next week and a half is a bit of a mixed bag, with a lot of onshore wind messin' things up. We’ve got some windows, but you’ve got to pick your moments.
The first real chance to get wet that actually looks half-decent is Wednesday the 16th. Wednesday morning is the call – clean surf with a southeast swell pushing 4ft at 8 seconds, and light winds. The energy is moderate (373). Wednesday afternoon blows out a bit more, but the morning will offer some fun ones for the beginner-plus crew. It’s a fairly consistent spot and fairly exposed, so it'll pick up what's around.
Then it goes quiet. We’ve got a solid week of onshores and poor conditions from Thursday the 17th right through to the 20th. Some of those swells get bigger – up to 7ft on the 20th – but the wind is trash, so save your energy.
There’s a tiny glimmer on Monday the 21st. Glassy conditions, 5ft swell from the east-northeast (369 combined energy). It’s surfable, but nothing to write home about. And again on Tuesday the 22nd with glassy 4ft waves. Small and clean.
The real standout, though, is the last week of September. If you can wait, this is the one. Sunday the 27th afternoon turns glassy with a 7ft south swell – that’s big, but the glassy wind will make it clean. The energy is strong (834). Still, 7ft is gettin' up there for a beginner.
But the absolute best session of the whole run is Monday the 28th of September. We’re talkin’ a solid 7ft south groundswell, but here’s the kicker – it’s a proper long-period groundswell at 13 seconds (groundswell energy is massive at 1741). This is expert territory at over 8ft and that kind of period. For a beach/jetty setup, these long-period south swells can be a bit straight, but with clean, light cross-offshore winds, the better surfers are going to have a field day. This is the one to circle on the calendar.
Otherwise, after the 28th, Tuesday the 29th drops back to a more manageable 5ft with glassy conditions, which is a nice mellow follow-up.
Bottom line: the first week is mostly a write-off. The second week, specifically the 27th through the 29th, is where the magic is. Keep an eye on that Monday the 28th for the big one.
Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 13°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Fri night. Warm (max 25°C on Mon morning, min 17°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 10 | S 12 | S 8 | S 9 | S 10 | S 8 | S 11 | S 10 | S 10 | S 9 | NE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | ||||||||||||||||||||
133 | 220 | 206 | 257 | 535 | 167 | 396 | 296 | 186 | 142 | 109 | 305 | 342 | 480 | 559 | 601 | 512 | 353 | 286 | 246 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | glassy | on | on | cross-on | on | on | on | on | on | on | cross-on | on | cross-off | glassy | cross-on | glassy |
High Tide | 4:14PM0.54m | 4:51AM0.55m | 4:42PM0.49m | 5:49AM0.48m | 12:12PM0.33m | 00:36AM0.22m | 6:58AM0.44m | 12:24PM0.37m | 6:45PM0.41m | 7:59AM0.40m | 12:36PM0.41m | 7:49PM0.39m | 12:21PM0.44m | 9:48PM0.40m | 11:55AM0.48m | 11:11PM0.47m | ||||
Low Tide | 9:14PM0.12m | 9:13AM0.24m | 9:14PM0.15m | 9:04AM0.28m | 12:19PM0.30m | 9:26PM0.18m | 9:08AM0.31m | 1:56PM0.33m | 9:50PM0.23m | 9:10AM0.34m | 4:09PM0.29m | 4:05AM0.17m | 4:45PM0.24m | 4:46AM0.11m | 5:16PM0.20m | |||||
— | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | |
6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 6 | 7 | 9 | 1 | 1 | — | 1 | — | 1 | — |
Temp °C | 16 | 15 | 17 | 16 | 15 | 18 | 18 | 16 | 18 | 18 | 17 | 18 | 19 | 19 | 24 | 24 | 21 | 25 | 24 | 21 |
Feels °C | 13 | 13 | 13 | 12 | 14 | 14 | 14 | 13 | 17 | 17 | 15 | 17 | 18 | 18 | 25 | 25 | 23 | 27 | 25 | 23 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 7 | S 8 | E 7 | S 10 | S 8 | S 11 | S 10 | S 10 | S 9 | E 6 | S 9 | SSE 9 | S 13 | S 12 | S 12 | ENE 9 | ENE 8 | ENE 8 | ENE 8 |
133 | 127 | 206 | 27 | 535 | 167 | 396 | 296 | 186 | 142 | 49 | 40 | 25 | 51 | 25 | 24 | 512 | 353 | 286 | 246 | |
Swell 2 Height (m) Direction Period (s) | SE 8 | S 12 | S 10 | SSE 14 | E 7 | S 11 | ESE 11 | E 7 | E 10 | ESE 10 | S 9 | S 13 | S 13 | SE 8 | S 8 | — | S 10 | S 10 | S 9 | S 9 |
80 | 220 | 128 | 67 | 28 | 116 | 12 | 9 | 17 | 18 | 83 | 30 | 29 | 3 | 1 | — | 19 | 16 | 15 | 6 | |
Swell 3 Height (m) Direction Period (s) | E 8 | SE 8 | E 7 | SE 8 | ESE 12 | E 7 | ESE 11 | E 11 | ENE 7 | — | E 8 | E 11 | SE 7 | — | — | — | — | — | — | S 12 |
33 | 53 | 39 | 15 | 14 | 17 | 23 | 9 | 4 | — | 23 | 9 | 2 | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | S 5 | — | — | S 9 | — | — | ENE 7 | NE 4 | ENE 6 | ENE 5 | NE 7 | NE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — |
21 | — | — | 257 | — | — | 42 | 12 | 40 | 51 | 109 | 305 | 342 | 480 | 559 | 601 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 0 | 0 | 13 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 2 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
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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.










