
Surf Forecasts:
Prainha surf forecast from 7 Jul 2026:
- Best quality surf: Monday 13 Jul, 9AM (local time) - 6ft (1.8m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 9AM (local time) - 6ft (1.8m), 12s period, SSE swell with 857 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 12PM (local time) - 5.5ft (1.7m), 8s period with SSE swell.
Best Forecast Surf Conditions for Prainha this week:
The surf forecast for Prainha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 07) at 12PM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 1.1m and 10s. Another secondary swell of 0.2m and 8s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Prainha in the next 16 days are 1.8m 12s and forecast to arrive on Monday (Jul 13) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Jul 12) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Tue 7th Jul) | 5.5ft (1.7m) 8s |
| Best Surf | 9AM (Mon 13th Jul) | 6ft (1.8m) 12s |
| Most Powerful | 9AM (Mon 13th Jul) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Prainha over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let’s look at what Prainha has got cooking for us over the next couple of weeks. It's a slow start, but there are a couple of solid windows to keep an eye on.
Overall, the pattern is pretty quiet for the first week or so. We've got a mix of small, short-period swell and onshore breezes making a mess of things. The real standout is tucked away in the second week, and it’s worth waiting for.
The first proper surfable day doesn't show up until the morning of Wednesday, July 9th. We're talking tiny 2 ft of swell coming from the ESE with a period of 11 seconds. It's not going to get the heart racing, but the wind is glassy (WNW at 3 mph), so it'll be clean. The water temp is about average for this time of year, so no surprises there.
Thursday morning, July 10th, is even smaller – 1 ft – but that swell has some serious legs with a 14-second period. Combined wave energy is moderate (122), and with that glassy WNW wind, it’ll be clean, but you'll have to be patient between sets. The long period might make it a bit straight at the beach, but Prainha can handle it.
Things get more interesting on Saturday morning, July 12th. That ESE swell builds to a clean 3 ft, with a 13-second period, and glassy winds from the WNW. The combined energy jumps to a solid 342 (moderate), and it’s looking like a good, clean morning session.
The main event, and the one true standout, is Monday morning, July 14th. This is the day to circle on the calendar. A solid 6 ft of SSE swell rolls in with a 12-second period. The combined wave energy is pumping at a strong 1019, and the wind is a clean cross-offshore from the SSE at 9 mph. This is excellent surf, but it’s only for experienced surfers – that 6 ft is pushing the limits for learners. Crowds are sometimes a thing here, so you might have some company, but with conditions this good, it’ll be worth it.
After that, the swell backs right off again. The morning of Friday, July 18th, offers a glimmer with 3 ft ESE swell at 12 seconds and a glassy calm wind, but it's nothing compared to that Monday pulse. Sunday morning, July 20th, brings 4 ft of E swell with 12-second period, combined energy of 381, and flat calm winds. It'll be glassy and has potential for a decent session, but it’s not quite the standout of the 14th.
The rest of the outlook is mostly small, onshore, and not worth paddling out for. There's a long quiet spell between the 12th and the 20th that's mostly poor conditions.
So, keep your powder dry for Monday, July 14th. That's your best shot at Prainha for this whole run. The rest is small and fickle.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Mon night. Very mild (max 17°C on Mon night, min 11°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Sun afternoon. Very mild (max 18°C on Fri morning, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Mon 13 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | ESE 14 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | SE 8 | SSE 12 | ESE 11 |
Wave Graph | |||||||||||||||||||||
79 | 222 | 177 | 92 | 80 | 80 | 80 | 65 | 63 | 58 | 80 | 233 | 378 | 342 | 326 | 261 | 190 | 136 | 164 | 857 | 48 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross-off | off | on | cross-off | glassy | cross-on | cross | glassy | cross-on | off | glassy | cross-on | glassy | cross | cross-on | cross-off | cross-off | cross-on |
High Tide | 8:18AM1.05m | 9:10PM1.02m | 9:31AM1.04m | 10:16PM0.98m | 10:47AM1.09m | 11:20PM0.97m | 11:59AM1.17m | 00:18AM0.98m | 1:02PM1.26m | 1:09AM1.01m | 1:57PM1.34m | 1:54AM1.05m | 2:45PM1.37m | ||||||||
Low Tide | 00:35AM0.53m | 1:18PM0.39m | 1:40AM0.56m | 5:15PM0.47m | 5:40AM0.52m | 6:37PM0.43m | 6:31AM0.42m | 7:38PM0.40m | 7:11AM0.32m | 8:28PM0.40m | 7:43AM0.22m | 9:11PM0.43m | 8:08AM0.14m | ||||||||
— | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | |
— | — | 5:35 | — | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | |
mm | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 4 | 9 | 2 | — | — |
Temp °C | 17 | 15 | 16 | 15 | 13 | 15 | 15 | 15 | 16 | 17 | 18 | 17 | 17 | 16 | 18 | 18 | 18 | 18 | 18 | 16 | 17 |
Feels °C | 17 | 11 | 13 | 13 | 12 | 14 | 14 | 14 | 14 | 16 | 17 | 16 | 16 | 15 | 17 | 18 | 18 | 18 | 17 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 10 | E 8 | SE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | SE 5 | SE 5 |
79 | 6 | 177 | 92 | 80 | 80 | 80 | 65 | 63 | 58 | 42 | 233 | 378 | 342 | 326 | 261 | 190 | 136 | 96 | 30 | 18 | |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 15 | E 8 | E 8 | E 8 | SE 10 | SE 12 | S 10 | — | NE 3 | ESE 14 | ENE 4 | ESE 14 | — | — | NE 4 | SE 20 | SE 20 | SSE 12 | SE 12 | ESE 11 |
6 | 8 | 5 | 1 | 1 | 4 | 6 | 2 | — | 2 | 80 | 1 | 281 | — | — | 1 | 15 | 15 | 58 | 132 | 48 | |
Swell 3 Height (m) Direction Period (s) | SE 16 | — | E 8 | — | — | E 8 | SSE 11 | — | — | E 7 | ENE 3 | S 8 | — | — | — | S 14 | SE 20 | — | SE 18 | — | SE 11 |
10 | — | 5 | — | — | 5 | 25 | — | — | 1 | 1 | 1 | — | — | — | 4 | 15 | — | 12 | — | 30 | |
Wind waves Height (m) Direction Period (s) | — | SE 10 | — | — | — | — | — | — | — | NNE 3 | — | — | — | — | — | — | SSE 3 | SE 6 | SE 8 | SSE 12 | — |
— | 222 | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | 6 | 64 | 164 | 857 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 4 | 52 | 54 | 0 | 0 | 52 | 0 | 0 | 4 | 4 | 0 | 128 | 0 | 0 | 96 | 0 | 4 | 4 | 0 | 0 | 61 |
Best forecast wave conditions in Santa Catarina - Norte | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Prainha Surf forecast
The above surf forecast table for Prainha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Prainha can be found by selecting the local surf guide option on the grey menu. Our Prainha 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 (Prainha) 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 Prainha 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.
Prainha is 14 km (9 miles) from Sao Francisco do Sul. If you plan a holiday in Santa Catarina - Norte, look for hotels and other accommodation in Sao Francisco do Sul. Sao Francisco do Sul has rooms for a wide range of budgets as well as car hire and transport links.











