Surf Forecasts:
Praia do Porto surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 9PM (local time) - 10ft (3.0m), 9s period, S swell with offshore winds.
- Most powerful swell: Monday 24 Aug, 3AM (local time) - 10ft (3.0m), 13s period, S swell with 3,017 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 3PM (local time) - 3.5ft (1.0m), 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 Wednesday (Aug 19) at 3PM. The primary swell is predicted to be 1.0m and 8s period with a secondary swell of 0.1m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia do Porto in the next 16 days are 3.0m 13s and forecast to arrive on Monday (Aug 24) at 3AM. 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 5s period and expected on Friday (Aug 21) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 19th Aug) | 3.5ft (1.0m) 8s |
| Best Surf | 9PM (Fri 21st Aug) | 10ft (3.0m) 9s |
| Most Powerful | 3AM (Mon 24th Aug) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Praia do Porto over the next 16 days.
The Lowdown
Alright, Rusty here, and I've been staring at the charts for Praia do Porto. Let's just get it out there: the next few days are a bit of a write-off for proper surfing. We've got a long, slow start. We're talking about a gap of a couple of days with nothing really worth paddling out for.
The first real chance to get wet comes on Friday the 21st. It's not a classic, but the morning is looking passable. We've got a 5ft swell from the SSW, with a light offshore breeze from the SW. That's clean enough to have a crack at some waist-high waves. The combined energy is moderate, sitting at 318.
Saturday the 22nd is where things start to get exciting. The morning is the standout of the first week. The swell builds to 7ft from the S, with a period bumping up to 9 seconds. The wind is a gentle offshore from the SW, and the forecast says clean. The energy jumps to strong (1126). This is a solid, fun size for a beach/jetty setup, and it's going to be the best session of the early run.
But the real highlight, the one you mark on your calendar, is Monday the 24th. The morning is absolutely firing for experienced surfers. The swell hits 8ft from the S with a period of 13 seconds – that's proper groundswell. The energy is very strong (2512). And the wind? Glassy. Dead flat. It doesn't get much cleaner than that. This is big, powerful, and perfect. It's only for the guys who know what they're doing, though. That 8ft mark is no joke.
We then hit a rough patch. From Tuesday the 25th right through to the end of the month, the onshore winds ruin it. The swell drops, the wind is onshore or cross-onshore, and it's just messy. There's a brief flash of hope on the morning of Friday the 28th with a clean offshore wind, but the swell is tiny at 4ft. It's barely surfable.
Looking into the first week of September, there's a glimmer. The afternoon of September 3rd is worth a mention. The swell is 6ft from the S with a 12-second period. The wind is dead calm, glassy. The energy is strong (930). It's a long way out, so take it with a pinch of salt, but if it holds, that's a beautiful, clean, chest-high afternoon.
So, for the best on offer: Saturday morning the 22nd is your first real winner. Monday morning the 24th is the absolute standout for the experienced crew, with big, glassy, powerful waves. The rest of the fortnight is mostly a waiting game.
- Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Sat morning, min 11°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | S 8 | S 9 | S 9 | S 9 | S 9 | S 10 | S 12 | S 13 | S 13 | S 14 | S 13 | S 13 | S 12 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 165 | 119 | 110 | 110 | 146 | 108 | 54 | 374 | 1252 | 885 | 449 | 311 | 545 | 1332 | 2483 | 2545 | 2534 | 1734 | 1070 | 690 | 488 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | on | on | on | cross-off | off | cross-off | off | off | cross-off | glassy | off | cross-off | off | off | on | cross-on | cross-on | on | cross-on |
High Tide | 11:54AM0.32m | 6:24PM0.45m | 7:19AM0.45m | 12:30PM0.36m | 7:12PM0.42m | 8:18AM0.40m | 1:10PM0.39m | 8:07PM0.39m | 12:21PM0.42m | 10:23PM0.39m | 12:07PM0.46m | 11:27PM0.45m | 12:34PM0.51m | 00:07AM0.52m | 1:15PM0.56m | 00:48AM0.58m | |||||
Low Tide | 9:36AM0.29m | 12:35PM0.29m | 10:01PM0.21m | 9:36AM0.32m | 3:01PM0.32m | 3:13AM0.21m | 4:25PM0.28m | 4:23AM0.16m | 12:13PM0.39m | 5:06AM0.11m | 5:41PM0.20m | 5:48AM0.06m | 6:24PM0.17m | 6:33AM0.02m | 7:05PM0.14m | ||||||
 | |  | | |  |  | | | |  | | | | | | | | | |  | |
 | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — |
 | — | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 23 | 26 | 20 | 20 | 19 | 15 | 14 | 14 | 13 | 14 | 13 | 13 | 14 | 14 | 13 | 18 | 18 | 15 |
Feels °C | 22 | 23 | 21 | 21 | 25 | 20 | 16 | 15 | 11 | 11 | 11 | 11 | 11 | 8 | 9 | 12 | 11 | 10 | 14 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | S 9 | S 9 | ENE 7 | SSW 6 | ENE 7 | ENE 8 | S 9 | S 9 | S 9 | S 10 | S 12 | S 13 | S 13 | S 14 | S 13 | S 13 | S 12 | S 12 |
| kJ | 165 | 119 | 110 | 108 | 54 | 108 | 48 | 51 | 51 | 651 | 449 | 311 | 545 | 1022 | 2483 | 2545 | 2534 | 1734 | 1070 | 690 | 488 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 7 | SE 12 | SE 12 | SE 6 | ENE 7 | E 11 | — | ENE 9 | ENE 9 | S 11 | NE 8 | NE 8 | ENE 7 | ENE 7 | NE 7 | — | — | — | — |
| kJ | 2 | 1 | 24 | 6 | 6 | 1 | 54 | 2 | — | 65 | 70 | 125 | 17 | 15 | 5 | 5 | 2 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | S 7 | S 10 | — | — | SE 11 | S 8 | — | — | — | — | ENE 9 | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 1 | 18 | — | — | 5 | 1 | — | — | — | — | 49 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 3 | — | ENE 8 | ENE 7 | S 8 | SSW 6 | S 8 | S 9 | S 9 | — | — | — | S 12 | — | — | — | NNE 3 | NE 4 | NE 4 | NE 5 |
| kJ | 2 | 2 | — | 110 | 146 | 33 | 64 | 374 | 1252 | 885 | — | — | — | 1332 | — | — | — | 7 | 11 | 35 | 62 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 2 | 13 | 0 | 13 | 0 | 0 | 0 | 0 | 0 | 13 | 0 | 0 | 2 | 25 | 14 | 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.
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