Surf Forecasts:
Prainha surf forecast from 29 Jul 2026:
- Best quality surf: Sunday 2 Aug, 3AM (local time) - 2.5ft (0.8m), 7s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 3PM (local time) - 3ft (0.9m), 7s period, E swell with 74 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 3AM (local time) - 2.5ft (0.8m), 7s period with E 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 Sunday (Aug 02) at 3AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.1m and 10s. 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 0.9m 7s and forecast to arrive on Saturday (Aug 01) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 7s period and expected on Saturday (Aug 01) at 12PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 2nd Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 3AM (Sun 2nd Aug) | 2.5ft (0.8m) 7s |
| Most Powerful | 3PM (Sat 1st Aug) | 3ft (0.9m) 7s |
Table - best surf conditions forecast for Prainha over the next 16 days.
The Lowdown
Alright crew, Rusty here. Let me lay it out for ya at Prainha.
We are looking at a real slow start. From Wednesday the 29th through the first few days, there's barely a ripple. Combined energy is pitiful, in the single digits to start. The wait for anything worth paddling out for is long, and the first "surfable" label doesn't pop up until Sunday the 2nd of August, and even then, it's just ordinary. You're waiting a week before you see any real energy.
The best of the bunch comes in the second week. Mornings on Friday the 7th and Saturday the 8th of August show some promise. You've got a 1.0 yard swell from the East both days, with combined energy hitting moderate levels – 147 and 148 yards respectively (moderate energy). The period is short at 7 to 9 seconds, which means it's windswell, not groundswell. The big plus here is the wind: a cross-offshore breeze from the SW on the 7th and from the S on the 8th will keep the surface clean.
At Prainha, an advanced break, this is the best we get. A 1.0 yard East swell might not sound like much, but with that clean wind, it’ll be the most surfable period. The break is a bit inconsistent, so you'll be waiting, but the conditions will be right. The water temperature is a touch warmer than normal at 67°. Don't expect big, punchy waves; it'll be small and clean.
After that, the energy drops off and the wind picks up. By Tuesday the 11th, strong S winds at 15 mph are likely to mess up any remaining order.
So, that's the long and short of it. A whole lotta nothing, then a few clean, small windows on those August mornings. Not a classic run, but if you're desperate and local, you might get a few. Things can change, so don't write it off completely.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Very mild (max 19°C on Wed morning, min 17°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sat morning, min 17°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
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) | ESE 8 | ESE 8 | SSE 4 | SE 5 | SE 4 | SE 10 | E 7 | E 4 | ENE 4 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7 | 6 | 7 | 6 | 5 | 4 | 8 | 14 | 19 | 46 | 74 | 61 | 59 | 60 | 48 | 35 | 23 | 47 | 52 | 47 | 53 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross-off | glassy | cross-on | cross | glassy | cross-on | cross-on | cross-on | on | cross | glassy | cross | glassy | glassy | on | cross | cross | cross-on | cross-off |
High Tide | 3:14PM1.32m | 3:06AM1.29m | 3:49PM1.33m | 3:42AM1.32m | 4:25PM1.31m | 4:20AM1.32m | 5:03PM1.27m | 5:00AM1.28m | 5:44PM1.20m | 5:45AM1.21m | 6:29PM1.10m | 6:39AM1.12m | 7:21PM0.99m | ||||||||
Low Tide | 8:47PM0.38m | 8:56AM0.03m | 9:04PM0.36m | 9:22AM0.01m | 9:27PM0.33m | 9:51AM0.03m | 9:56PM0.33m | 10:23AM0.08m | 10:29PM0.34m | 10:57AM0.17m | 11:05PM0.37m | 11:36AM0.30m | 11:46PM0.41m | ||||||||
 |  |  | |  | |  | |  | | |  | | | | | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 20 | 19 | 19 | 19 | 19 | 18 | 18 | 19 | 19 | 19 | 19 | 19 |
Feels °C | 19 | 20 | 16 | 18 | 16 | 19 | 19 | 18 | 18 | 20 | 19 | 19 | 19 | 19 | 19 | 18 | 20 | 21 | 20 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | SSE 4 | ENE 7 | ENE 7 | ENE 7 | E 7 | ESE 4 | SSE 12 | E 6 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
| kJ | 22 | 22 | 7 | 16 | 16 | 15 | 8 | 6 | 13 | 46 | 74 | 61 | 59 | 60 | 48 | 35 | 23 | 47 | 52 | 47 | 53 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ENE 6 | SE 5 | SE 4 | SSE 4 | SE 4 | E 7 | E 7 | SE 11 | SE 10 | SSE 10 | S 10 | S 10 | E 13 | SE 12 | ESE 11 | ESE 10 | ESE 12 | SE 11 | SE 11 |
| kJ | 6 | 6 | 14 | 6 | 3 | 2 | 1 | 4 | 4 | 4 | 4 | 9 | 2 | 2 | 3 | 6 | 12 | 11 | 13 | 31 | 19 |
Swell 3 Height (m) Direction Period (s) | SE 13 | SE 12 | ESE 8 | SE 10 | SE 11 | SE 10 | SE 13 | SE 13 | — | SSE 11 | S 10 | — | — | S 8 | S 8 | — | SE 15 | SE 12 | SSE 12 | SSE 12 | ESE 11 |
| kJ | 7 | 6 | 6 | 4 | 5 | 4 | 7 | 6 | — | 12 | 8 | — | — | 1 | 1 | — | 8 | 6 | 15 | 14 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | S 4 | — | — | — | — | E 4 | ENE 4 | — | — | — | — | S 2 | — | — | — | — | — | — | — |
| kJ | — | — | 18 | — | — | — | — | 14 | 19 | — | — | — | — | 1 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 33 | 61 | 33 | 61 | 140 | 74 | 61 | 249 | 88 | 4 | 73 | 2 | 0 | 128 | 0 | 11 | 73 | 4 | 4 | 128 | 0 |
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.
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