
Surf Forecasts:
Praia do Porto surf forecast from 5 Sep 2026:
- Best quality surf: Monday 7 Sep, 12AM (local time) - 8ft (2.5m), 9s period, S swell with offshore winds.
- Most powerful swell: Sunday 6 Sep, 6PM (local time) - 10ft (3.0m), 10s period, S swell with 1,478 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 9AM (local time) - 3.5ft (1.0m), 9s 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 Saturday (Sep 05) at 9AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 1.0m and 8s. 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 3.0m 10s and forecast to arrive on Sunday (Sep 06) 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 0.4m 3s period and expected on Thursday (Sep 10) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 5th Sep) | 3.5ft (1.0m) 9s |
| Best Surf | 12AM (Mon 7th Sep) | 8ft (2.5m) 9s |
| Most Powerful | 6PM (Sun 6th Sep) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, Rusty here again, giving you the same rundown in feet and miles per hour.
Water temp is 66°F, right on the average for this time of year.
The start is slow. Saturday the 5th has tiny 3ft S swell with glassy morning conditions—you’d need a longboard to get any joy. Sunday the 6th morning is the first real standout: 8ft of S swell with clean offshore wind. The combined energy is moderate (700) and the period is short at 8 seconds, but the offshore breeze will make it rideable. For intermediate surfers, that’s your window.
Monday the 7th morning stays clean with 6ft and offshore wind, but it falters in the afternoon. Tuesday the 8th is a total loss with onshore slop.
Now the big one: Sunday the 13th. You’re looking at 18ft of SSE groundswell with a 13-second period and offshore wind. Energy is massive (15117), and the swell direction lines up with the optimum SE. This is strictly for experts—far too big for anyone else. The wind will make it a raw, powerful beast.
Monday the 14th is still excellent for experienced surfers: 8ft of SE swell, 11-second period, light offshore wind and clean. Strong energy (1910) and a proper groundswell.
The second week is quieter, with a few glassy mornings like the 16th and 19th bringing 4ft to 7ft of easterly swell. Sunday the 20th offers 8ft of ENE swell, glassy in the morning and moderate energy (822)—a good session, but nothing compared to that huge Sunday.
Best of the early run: Sunday the 6th morning. Absolute standout: Sunday the 13th for the big-wave crew. Be there if you’re keen.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat morning. Very mild (max 15°C on Sat afternoon, min 9°C on Sun night). Winds decreasing (fresh winds from the SSW on Sun afternoon, calm by Mon night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 15°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 9 | S 9 | S 8 | S 8 | S 10 | S 9 | S 10 | SSE 9 | S 10 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 14 | S 13 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
173 | 225 | 368 | 669 | 1223 | 1138 | 513 | 442 | 332 | 320 | 322 | 424 | 404 | 370 | 275 | 193 | 329 | 202 | 98 | 168 | 71 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | off | off | off | off | off | cross-on | cross-on | on | on | cross-on | glassy | cross-off | off | glassy | on | cross-on | on | on | cross-on |
High Tide | 12:47PM0.49m | 8:40PM0.35m | 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 | |||||||
Low Tide | 4:57PM0.26m | 4:40AM0.10m | 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 | ||||||||
6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | |
— | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 1 | 12 |
Temp °C | 14 | 15 | 14 | 14 | 13 | 12 | 14 | 14 | 13 | 19 | 20 | 16 | 21 | 20 | 17 | 20 | 20 | 18 | 22 | 20 | 20 |
Feels °C | 14 | 13 | 12 | 7 | 6 | 7 | 11 | 12 | 10 | 16 | 16 | 14 | 21 | 19 | 17 | 20 | 19 | 19 | 21 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 8 | E 8 | ENE 8 | S 9 | S 10 | SSE 9 | S 10 | ENE 7 | SSE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 11 | ENE 8 |
173 | 225 | 234 | 31 | 21 | 770 | 513 | 442 | 332 | 255 | 144 | 424 | 404 | 370 | 275 | 181 | 167 | 107 | 87 | 89 | 58 | |
Swell 2 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | — | — | E 8 | E 8 | E 8 | SE 6 | S 10 | SE 12 | SSE 9 | S 12 | S 12 | S 10 | S 11 | S 14 | S 13 | S 12 | SE 5 | S 11 |
134 | 99 | 68 | — | — | 5 | 5 | 11 | 56 | 226 | 34 | 113 | 341 | 270 | 96 | 112 | 329 | 202 | 98 | 7 | 37 | |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | — | — | — | — | — | S 16 | — | S 16 | SSE 14 | — | E 14 | S 12 | SSE 16 | E 14 | SSE 4 | E 13 | ESE 13 | ESE 12 |
36 | 26 | 16 | — | — | — | — | — | 5 | — | 5 | 38 | — | 4 | 112 | 193 | 4 | 8 | 13 | 17 | 15 | |
Wind waves Height (m) Direction Period (s) | — | — | S 8 | S 8 | S 10 | S 9 | — | — | ENE 6 | ENE 7 | ENE 8 | — | — | — | SW 2 | SSW 3 | — | — | ESE 5 | ENE 8 | ENE 5 |
— | — | 368 | 669 | 1223 | 1138 | — | — | 84 | 320 | 322 | — | — | — | 1 | 1 | — | — | 22 | 168 | 71 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 90 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 14 |
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.










