Surf Forecasts:
Praia do Porto surf forecast from 29 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 6PM (local time) - 11ft (3.5m), 11s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 1 Sep, 9PM (local time) - 13ft (4.0m), 11s period, S swell with 4,093 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 12AM (local time) - 5ft (1.6m), 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 Saturday (Aug 29) at 12AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.4m and 10s. 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 4.0m 11s and forecast to arrive on Tuesday (Sep 01) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 04) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 29th Aug) | 5ft (1.6m) 8s |
| Best Surf | 6PM (Tue 1st Sep) | 11ft (3.5m) 11s |
| Most Powerful | 9PM (Tue 1st Sep) | 13ft (4.0m) 11s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let's look at the waves on offer at Praia do Porto. It's a beach and jetty setup, fairly exposed to the swell, and it's a beginner-plus kind of spot.
Right off the bat, the water is sitting at 64° F, which feels a bit colder than what you'd normally expect for this time of year.
The next few days are a write-off. Friday the 28th is a no-go; we've got a 7 ft NE windswell with a short period of 8 seconds coming in on a cross-on breeze. The water is a mess of chop and the combined energy is only moderate at 657. It’s a pass.
Saturday the 29th is where it starts to turn. We wake up to light rain and a WSW wind swinging offshore at just 3 mph. The swell drops to a clean 5 ft from the ENE with a period of 8 seconds. The energy is a bit weak (338), but that glassy morning session will be the best of the weekend. The afternoon holds up with a 5 ft swell and a light cross-off breeze. Clean waves, but nothing to get too excited about.
Sunday the 30th is only offering up small, ordinary 4 ft waves with a cross-off wind. Rideable, but mediocre.
Then we hit a dry spell. From Monday the 31st right through Friday morning the 4th of September, it’s mostly poor conditions with onshore winds or strong offshore winds creating messy, unsurfable waves. The exception is Tuesday the 1st of September afternoon: the wind howls offshore at 19 mph, and a 7 ft SSW swell arrives with an 8-second period. The energy jumps to 800, but the forecast flags it as marginal due to tide. It’s raw and won’t be easy, but brave souls might find a few.
The real standout is Wednesday morning, the 2nd of September. Clear skies, a gentle offshore breeze from the SW at 9 mph, and a solid 12 ft groundswell from the south with a period of 11 seconds. The combined swell energy is a hefty 4228. This is serious, powerful swell. For a beginner spot, 12 ft is way too big. This is strictly for experts only. The wind is clean and offshore, but the size is the story here.
After that, things get spotty again. A 5 ft SE swell arrives on Thursday the 3rd, but the wind is cross-on and messy.
Friday the 4th of September sees the swell bottom out, with tiny 2 ft waves and glassy conditions in the morning. The energy is a mere 169. Not worth paddling out for.
The following week is a mixed bag of marginal conditions and onshore winds. Another big pulse shows up on Sunday the 6th of September: a 7 ft SSE groundswell with an 11-second period and light offshore wind. The energy is strong at 1121. That’s another good window for competent surfers, offering cleaner conditions than the previous big day.
Finally, on Thursday the 11th of September, the models are hinting at another huge swell, 12 ft from the SSE with a very long period of 13 seconds and a massive energy reading of 4082. But it’s coming with a 12 mph onshore wind. For a beach break, that long-period swell and onshore wind will turn it into a closeout mess. It’s just too big and poorly directed for this break.
For the average surfer, the best bet is the clean, smaller window on Sunday the 6th of September. Keep an eye on Tuesday the 1st of September afternoon if you can handle a strong offshore wind.
Rusty.
Short Range ForecastHeavy rain (total 43mm), heaviest during Mon morning. Warm (max 28°C on Fri afternoon, min 17°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Mon afternoon. Warm (max 20°C on Mon afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue afternoon, calm by Wed night). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | NE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | ENE 9 | ENE 9 | ESE 8 | ENE 9 | SSW 8 | S 11 | S 11 | S 10 | SSE 9 | SE 10 | SE 9 | SE 9 |
Wave Graph | ||||||||||||||||||||
589 | 343 | 313 | 256 | 211 | 197 | 223 | 338 | 311 | 218 | 165 | 157 | 581 | 3113 | 2445 | 1316 | 614 | 354 | 212 | 117 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | off | off | cross-off | cross-off | cross-off | on | cross-on | cross-on | cross-on | cross-on | off | off | off | off | cross-off | cross-on | cross-on | on | cross-on |
High Tide | 2:52AM0.70m | 3:26PM0.67m | 3:24AM0.71m | 3:53PM0.64m | 3:56AM0.68m | 4:21PM0.59m | 4:33AM0.63m | 4:52PM0.53m | 5:25AM0.57m | 5:35PM0.47m | 6:39AM0.51m | 6:33PM0.41m | ||||||||
Low Tide | 8:34PM0.12m | 8:47AM-0.02m | 8:55PM0.13m | 9:12AM0.03m | 9:11PM0.14m | 9:35AM0.09m | 9:19PM0.16m | 9:52AM0.17m | 9:21PM0.17m | 9:45AM0.25m | 9:29PM0.19m | 9:32AM0.32m | 1:18PM0.31m | 9:46PM0.21m | ||||||
— | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | |
5:58 | — | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | |
mm | 3 | 2 | 2 | — | 5 | 2 | 2 | 6 | 21 | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 18 | 18 | 20 | 18 | 19 | 20 | 19 | 19 | 20 | 19 | 20 | 19 | 15 | 16 | 16 | 13 | 19 | 19 | 15 |
Feels °C | 27 | 18 | 19 | 21 | 18 | 21 | 21 | 19 | 19 | 20 | 20 | 14 | 12 | 9 | 11 | 12 | 13 | 16 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 5 | E 8 | ENE 9 | ENE 9 | ESE 8 | ESE 8 | ENE 9 | ENE 10 | S 11 | SSE 10 | SSE 9 | SE 10 | SE 9 | SE 9 |
68 | 343 | 313 | 256 | 211 | 197 | 22 | 338 | 311 | 218 | 165 | 123 | 151 | 118 | 1693 | 1086 | 614 | 354 | 212 | 117 | |
Swell 2 Height (m) Direction Period (s) | — | SSE 10 | SE 10 | SSE 10 | SSE 5 | SSE 6 | SSE 10 | — | SSE 6 | SE 7 | ENE 9 | ENE 9 | SE 8 | — | ENE 10 | ENE 10 | ENE 9 | S 9 | S 8 | S 9 |
— | 42 | 25 | 20 | 55 | 34 | 9 | — | 49 | 102 | 161 | 157 | 59 | — | 90 | 56 | 50 | 95 | 65 | 99 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSE 10 | SSE 10 | S 8 | — | SSE 8 | E 8 | S 8 | — | SSE 10 | — | — | — | ENE 9 | ENE 9 | S 11 | ENE 9 |
— | — | — | — | 9 | 10 | 1 | — | 6 | 54 | 1 | — | 9 | — | — | — | 58 | 32 | 9 | 25 | |
Wind waves Height (m) Direction Period (s) | NE 8 | SW 3 | SSW 4 | SSW 4 | — | — | E 8 | — | — | — | — | SW 2 | SSW 8 | S 11 | S 11 | S 10 | — | — | NE 9 | NNE 4 |
589 | 1 | 7 | 3 | — | — | 223 | — | — | — | — | 1 | 581 | 3113 | 2445 | 1316 | — | — | 95 | 20 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 14 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 16 | 14 | 2 | 40 | 96 | 2 | 2 | 13 | 2 | 2 | 2 | 7 |
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.











