Surf Forecasts:
Praia do Porto surf forecast from 17 Jul 2026:
- Best quality surf: Monday 20 Jul, 9AM (local time) - 7ft (2.1m), 8s period, NE swell with glassy winds.
- Most powerful swell: Saturday 18 Jul, 9PM (local time) - 7.5ft (2.3m), 8s period, NE swell with 754 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 9AM (local time) - 7ft (2.1m), 8s period with NE 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 Monday (Jul 20) at 9AM. The primary swell is predicted to be 2.1m and 8s period with a secondary swell of 1.7m and 8s. Another secondary swell of 0.2m and 12s is also forecast. 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 2.3m 8s and forecast to arrive on Saturday (Jul 18) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Tuesday (Jul 21) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 20th Jul) | 7ft (2.1m) 8s |
| Best Surf | 9AM (Mon 20th Jul) | 7ft (2.1m) 8s |
| Most Powerful | 9PM (Sat 18th Jul) | 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. We’ve got a 16-day outlook for Praia do Porto, and it’s a bit of a slow burner. The first few days are a write-off, but there’s some real quality to be found if you’re patient.
Right now, things are rough. We’ve got a solid 6ft to 8ft swell from the NE, but the wind is a mess—cross-onshore and onshore, making it choppy and poor. The wave energy is moderate to strong (526 to 1255), but it’s all for nothing with that wind. You’d be better off staying home until this cleans up. This messy stretch runs from Friday the 17th right through the weekend.
The first real glimmer of hope comes on Monday the 20th. The morning looks magic – glassy conditions with a light WNW breeze, and a 7ft NE swell. The energy is strong (1007), and the forecast says “expect very good surf conditions.” That’s the standout for the first week. The water is currently sitting at 60°F, which is a whopping 5°F below normal for this time of year – much colder than usual, so you’ll want a thick wetsuit.
Tuesday the 21st is also a good call. The morning has a clean 5ft swell from the ENE with a light offshore SSW wind, and the afternoon goes glassy with a slightly smaller 4ft wave. Solid, clean surfing.
The middle of the week (22nd to 24th) keeps the quality going. Wednesday the 22nd is a gem: a 5ft S swell with a 10-second period, light offshore wind in the morning, and glassy conditions in the afternoon. The energy is moderate (528). Thursday the 23rd morning is also glassy with a 4ft SSE swell. Friday the 24th afternoon has a clean 4ft S swell with a decent offshore breeze.
Now, Monday the 27th and Thursday the 30th are the real standouts of the whole outlook. On the 27th, we’ve got a proper 6ft to 5ft S swell with a long 13-second period, and a strong offshore SW wind keeping it clean. The energy is very strong (1230 and 1020). This is quality, powerful groundswell. The 30th is similar: a 8ft S swell, 11-second period, offshore wind in the morning, and energy at 1304. That’s expert-level power, but it’ll be a sight to see.
The very end of the forecast, into the first of August, offers smaller but clean options. Saturday the 1st has a morning 3ft SSE swell with a long 12-second period and clean offshore wind.
Overall, the first few days are a bust, but from Monday the 20th onward, we’ve got a consistent run of good waves. The 27th and the 30th are the two best bets for size and power, just be aware that 8ft on the 30th is for experienced surfers only. Praia do Porto is a beach/jetty setup, so it can handle mixed swell directions, but it’s fairly exposed, so it’ll pick up any pulse. Crowds are “sometimes” a factor here, so you might have some company on those good days.
Stay stoked, and keep an eye on that wind.
Rusty
Short Range ForecastMostly dry. Warm (max 27°C on Sun morning, min 17°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 26mm), heaviest during Wed night. Warm (max 27°C on Mon afternoon, min 17°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | ENE 8 | ENE 8 | S 8 | S 10 | S 9 | SSE 9 | SSE 9 | ENE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 423 | 515 | 509 | 719 | 571 | 534 | 565 | 434 | 711 | 593 | 428 | 611 | 339 | 249 | 200 | 371 | 320 | 328 | 238 | 145 | 147 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | glassy | on | cross | off | glassy | off | off | glassy | glassy | glassy | cross-on | cross |
High Tide | 4:46PM0.61m | 4:21AM0.66m | 5:21PM0.58m | 5:04AM0.62m | 6:02PM0.54m | 6:02AM0.58m | 6:40PM0.51m | 6:57AM0.53m | 7:14PM0.48m | 7:47AM0.48m | 7:51PM0.45m | 8:55AM0.44m | 8:47PM0.41m | ||||||||
Low Tide | 10:10AM0.05m | 10:38PM0.28m | 11:05AM0.11m | 11:29PM0.29m | 11:55AM0.16m | 00:09AM0.28m | 12:36PM0.22m | 00:43AM0.26m | 1:17PM0.27m | 1:28AM0.25m | 3:27PM0.29m | 3:43AM0.21m | 4:30PM0.27m | ||||||||
 | |  | | | | | |  |  | |  | | | |  | |  |  |  | | |
 | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:38 | — | — | 5:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 7 | 1 | 2 | 15 | — | 1 | 3 |
Temp °C | 23 | 23 | 18 | 25 | 26 | 20 | 27 | 27 | 21 | 25 | 27 | 22 | 22 | 21 | 18 | 19 | 19 | 17 | 19 | 20 | 19 |
Feels °C | 19 | 20 | 15 | 22 | 23 | 18 | 25 | 24 | 18 | 25 | 26 | 21 | 23 | 23 | 19 | 20 | 21 | 18 | 21 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ENE 8 | SSE 16 | S 15 | ENE 8 | S 13 | NE 8 | ENE 8 | S 11 | ENE 8 | ENE 8 | ENE 8 | S 8 | S 10 | S 9 | SSE 9 | SSE 9 | ENE 8 | NE 8 |
| kJ | 88 | 57 | 38 | 513 | 26 | 38 | 394 | 12 | 450 | 403 | 10 | 360 | 339 | 249 | 200 | 371 | 320 | 328 | 238 | 145 | 147 |
Swell 2 Height (m) Direction Period (s) | SE 18 | SSE 16 | S 15 | ESE 10 | ESE 10 | SE 9 | S 13 | — | S 12 | S 12 | — | S 11 | SSW 10 | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSE 8 | SE 8 |
| kJ | 12 | 25 | 17 | 9 | 9 | 3 | 31 | — | 11 | 11 | — | 9 | 32 | — | 157 | 157 | 131 | 131 | 94 | 140 | 67 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 13 | S 13 | — | S 8 | — | — | — | — | — | — | — | — | — | S 12 | S 11 | — | S 12 | S 10 |
| kJ | 3 | 3 | 9 | 14 | 3 | — | 1 | — | — | — | — | — | — | — | — | — | 11 | 2 | — | 3 | 29 |
Wind waves Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 9 | — | SSW 9 | — | — | — | NNE 2 | NE 4 | N 4 | N 5 |
| kJ | 423 | 515 | 509 | 719 | 571 | 534 | 565 | 434 | 711 | 593 | 428 | 611 | — | 86 | — | — | — | 1 | 23 | 40 | 27 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 9 | 74 | 49 | 9 | 34 | 14 | 169 | 19 | 0 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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