
Surf Forecasts:
Praia do Porto surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 6PM (local time) - 10ft (3.0m), 10s period, S swell with offshore winds.
- Most powerful swell: Saturday 12 Sep, 3PM (local time) - 10ft (3.0m), 10s period, SE swell with 1,572 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 6PM (local time) - 10ft (3.0m), 10s 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 Sunday (Sep 06) at 6PM. The primary swell is predicted to be 3.0m and 10s period with a secondary swell of 0.3m and 8s. 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 3.0m 10s and forecast to arrive on Saturday (Sep 12) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sun 6th Sep) | 10ft (3.0m) 10s |
| Best Surf | 6PM (Sun 6th Sep) | 10ft (3.0m) 10s |
| Most Powerful | 3PM (Sat 12th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty, and I’m looking at the next couple of weeks at Praia do Porto. Right now, it’s a bit of a mixed bag, but there are some real windows if you know when to paddle out.
The water is sitting around 65°F, which is pretty much what you’d expect for this time of year—nothing weird there.
So, the immediate picture: Sunday the 6th is a write-off for paddling. We’ve got 8ft to 10ft swell coming in, but it’s hammered by a fresh breeze and the conditions are just messy. The combined wave energy is strong (971 to 1522), but it’s not clean enough to be fun. Leave the boards in the van.
Monday the 7th looks much calmer. Morning has clean 6ft swell from the south with a light offshore breeze. The energy drops back to a moderate level (551), and it’s rideable and clean. That’s a decent little session before lunch. By afternoon, the wind swings cross-on and it gets a bit bumpy, so get your fix early.
Tuesday the 8th is a skip. Onshore winds and chop take the quality right out.
Now, Wednesday the 9th is the standout in this first week. The morning is glassy—dead flat water—with a 5ft swell from the east-northeast. The energy is solid (685) and that glassy surface means it’s going to be silky. Afternoon stays glassy too with a touch more size at 6ft. That’s the session to circle on the calendar. If you’ve got a shortboard, you’ll be smiling.
Thursday the 10th keeps it clean with offshore winds in the morning and a 3ft, long-period (12 sec) swell from the south. The energy is still moderate (592). It’s not huge, but clean and lined up—good for a longer board or a fish.
Friday the 11th is small and average. Then Saturday the 12th brings a jump in size again: 7ft in the morning with glassy conditions. The energy jumps to strong (914). That morning window is your second best bet of the whole forecast, with clean, pumping surf. Afternoon pushes 10ft with a cross-off wind, but the energy is very high (1665) and it gets more challenging.
Sunday the 13th through Monday the 14th see onshore winds and rain. The swell stays solid (7ft to 8ft) but the quality is poor, with moderate to fresh onshore winds and chop. Not worth it unless you’re a glutton for punishment.
Tuesday the 15th morning is another sneaky good one. A 5ft swell with clean, cross-off winds. The energy is moderate (731) but the conditions are tidy. That’ll be fun and uncrowded.
After that, the second week gets smaller and less consistent. Thursday the 17th has a small, clean 5ft south swell, and the following days drop off into tiny, weak surf with onshore winds. By the 20th and 21st, the swell is short-period and messy. Combined energy drops into the low hundreds—barely a ripple.
So, bottom line: Wednesday the 9th morning is your best call—glass, clean, and head-high. Saturday the 12th morning is the other real highlight for size and glass. Everything else is a wait-and-see, especially in that second week where it goes quiet.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Tue afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun morning, light winds from the NNW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Fri night. Warm (max 22°C on Wed morning, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 8 | S 10 | S 10 | S 10 | S 10 | S 10 | SSE 10 | S 9 | NE 8 | ENE 8 | ENE 8 | ENE 8 | S 12 | S 14 | S 13 | E 8 | ENE 8 | ENE 8 | SE 9 | SE 10 | ESE 10 |
Wave Graph | |||||||||||||||||||||
925 | 1509 | 1212 | 546 | 490 | 450 | 328 | 180 | 183 | 344 | 361 | 223 | 233 | 416 | 268 | 146 | 185 | 94 | 719 | 1572 | 1247 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-on | cross-on | cross-on | on | cross-on | glassy | glassy | cross-off | off | glassy | glassy | glassy | on | cross-on | glassy | cross-off | cross-off |
High Tide | 1:23PM0.54m | 11:15PM0.41m | 1:51PM0.57m | 11:51PM0.48m | 2:05PM0.60m | 00:29AM0.55m | 2:15PM0.61m | 1:13AM0.61m | 2:30PM0.62m | 1:59AM0.66m | 2:48PM0.62m | 2:37AM0.68m | 3:07PM0.62m | ||||||||
Low Tide | 5:35PM0.23m | 5:24AM0.03m | 6:13PM0.20m | 6:09AM-0.02m | 6:53PM0.17m | 6:56AM-0.05m | 7:27PM0.15m | 7:37AM-0.06m | 7:56PM0.12m | 8:10AM-0.05m | 8:21PM0.10m | 8:39AM-0.01m | 8:44PM0.09m | ||||||||
6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 1 | 3 | 2 | 9 | — | — | 5 |
Temp °C | 13 | 13 | 12 | 13 | 13 | 13 | 20 | 21 | 16 | 22 | 20 | 17 | 20 | 19 | 18 | 19 | 19 | 19 | 24 | 21 | 19 |
Feels °C | 6 | 6 | 7 | 10 | 10 | 10 | 16 | 17 | 14 | 22 | 21 | 18 | 21 | 21 | 20 | 21 | 20 | 20 | 25 | 21 | 18 |
Swell 1 Height (m) Direction Period (s) | E 8 | ENE 8 | S 10 | S 10 | S 10 | S 10 | SSE 10 | S 9 | E 7 | ENE 8 | S 11 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 8 | NE 5 | SE 9 | SE 10 | ESE 10 |
32 | 13 | 936 | 546 | 490 | 450 | 328 | 180 | 127 | 344 | 253 | 223 | 163 | 133 | 124 | 146 | 185 | 31 | 719 | 1572 | 1247 | |
Swell 2 Height (m) Direction Period (s) | E 9 | — | E 8 | E 8 | E 8 | ENE 8 | E 5 | SE 12 | NE 8 | S 12 | SE 10 | S 10 | S 12 | S 14 | S 13 | S 12 | S 11 | ENE 8 | ENE 8 | ENE 8 | S 13 |
14 | — | 5 | 5 | 5 | 12 | 19 | 68 | 108 | 274 | 4 | 90 | 233 | 416 | 268 | 100 | 61 | 94 | 89 | 55 | 272 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | ENE 8 | ENE 7 | S 16 | SSE 10 | SSE 10 | — | S 13 | SSE 16 | SE 8 | E 14 | E 13 | SSE 5 | SE 6 | — | S 15 | NE 7 |
— | — | — | — | — | 12 | 10 | 5 | 146 | 67 | — | 156 | 196 | 3 | 4 | 13 | 11 | 35 | — | 38 | 43 | |
Wind waves Height (m) Direction Period (s) | S 8 | S 10 | S 10 | — | — | NE 3 | — | ENE 6 | NE 8 | — | ENE 8 | — | — | — | — | — | — | NNE 4 | ENE 8 | — | NNE 5 |
925 | 1509 | 1212 | — | — | 5 | — | 150 | 183 | — | 361 | — | — | — | — | — | — | 50 | 106 | — | 44 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 40 | 482 | 0 | 0 | 2 | 2 | 2 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 13 | 90 |
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.










