
Surf Forecasts:
Prainha surf forecast from 26 Jul 2026:
- Best quality surf: Monday 27 Jul, 9AM (local time) - 2ft (0.6m), 8s period, ESE swell with glassy winds.
- Most powerful swell: Sunday 26 Jul, 3PM (local time) - 2.5ft (0.7m), 8s period, ESE swell with 61 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 9AM (local time) - 2ft (0.6m), 8s period with ESE 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 Monday (Jul 27) at 9AM. The primary swell is predicted to be 0.6m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Prainha in the next 16 days are 0.7m 8s and forecast to arrive on Sunday (Jul 26) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Tuesday (Jul 28) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 27th Jul) | 2ft (0.6m) 8s |
| Best Surf | 9AM (Mon 27th Jul) | 2ft (0.6m) 8s |
| Most Powerful | 3PM (Sun 26th Jul) | 2.5ft (0.7m) 8s |
Table - best surf conditions forecast for Prainha over the next 16 days.
The Lowdown
Alright, here's the deal. For a while now, there's been next to nothing in the water. Tiny, weak, short-period swells that won't do much for anyone.
Starting Sunday the 26th of July, we're talking about waves around 2ft from the SE, only 8 seconds apart. Water temps are around 66°, which is about average for the time of year. Sunday morning is glassy, but the energy is too low – we're talking 111 on the combined energy scale. That's weak.
Through Monday and Tuesday, it's even smaller. Some of those days have clean conditions, but the swell is barely a ripple. Wednesday the 29th is flat; Thursday the 30th has glass in the afternoon but again, the swell's not there. Right through to the 31st and into August, it's pretty much the same story. Swell energy drops into the teens and twenties. Waves are 0.6ft to 2ft at best.
Now, there is a window worth watching. If we jump forward to Thursday the 6th of August, things change. A proper SE groundswell shows up – 4ft at 14 seconds. That's a long period, so there's real energy behind it – combined energy jumps to 628. Solid. For a break like Prainha, exposed to the south, this could be the day. The morning of the 6th has light offshore wind from the SW, which should keep the waves clean. That's your best shot across the whole 16 days.
Friday the 7th still has some size – 4ft and 13 seconds – with cross-off winds, but it won't be as clean as Thursday. After that, it fades out again through the 8th and beyond. Small, weak, and short-period for the rest of the outlook.
Prainha is an advanced break, very consistent, but when the swell shows up like that, the crowds can be around – it's marked as sometimes, so expect some company on that peak. That Thursday the 6th morning is the standout, but keep in mind it's over a week away, so treat it as promising, not guaranteed.
Otherwise, it’s a long stretch with nothing doing. A blank run like this is normal for the area, so don't lose hope. Forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 16°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Warm (max 22°C on Wed night, min 17°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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) | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 6 | E 6 | ESE 8 | E 7 | E 7 | E 7 | E 7 | E 7 | SE 8 | SE 7 | SE 8 | SE 7 | SSE 12 | SSE 11 | E 6 |
Wave Graph | |||||||||||||||||||||
74 | 61 | 45 | 46 | 38 | 26 | 25 | 27 | 13 | 34 | 34 | 34 | 38 | 37 | 14 | 14 | 20 | 9 | 13 | 12 | 24 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | glassy | on | cross-on | cross-on | on | cross-off | glassy | cross-on | cross-off | cross-off | glassy | glassy | glassy | on | cross-on | cross-on | on | cross-off |
High Tide | 1:22PM1.16m | 1:14AM1.06m | 2:02PM1.24m | 1:54AM1.15m | 2:38PM1.29m | 2:30AM1.23m | 3:14PM1.32m | 3:06AM1.29m | 3:49PM1.33m | 3:42AM1.32m | 4:25PM1.31m | 4:20AM1.32m | 5:03PM1.27m | ||||||||
Low Tide | 8:08PM0.46m | 7:44AM0.18m | 8:26PM0.43m | 8:09AM0.12m | 8:36PM0.41m | 8:33AM0.06m | 8:47PM0.38m | 8:56AM0.03m | 9:04PM0.36m | 9:22AM0.01m | 9:27PM0.33m | 9:51AM0.03m | 9:56PM0.33m | ||||||||
6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | |
— | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 18 | 20 | 19 | 19 | 21 | 22 | 19 | 20 | 20 | 22 | 17 | 18 | 17 | 18 | 18 | 18 | 19 | 19 | 19 |
Feels °C | 16 | 17 | 17 | 21 | 19 | 18 | 21 | 23 | 19 | 20 | 20 | 22 | 18 | 20 | 18 | 19 | 19 | 19 | 19 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 6 | E 6 | ENE 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ESE 6 | E 6 |
74 | 61 | 45 | 46 | 38 | 26 | 22 | 27 | 47 | 34 | 34 | 34 | 38 | 37 | 25 | 16 | 15 | 16 | 16 | 6 | 24 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | NE 4 | ENE 4 | E 7 | SE 12 | ESE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 4 | SSE 4 | SE 8 | SE 7 | SE 8 | SE 7 | SE 5 | ENE 7 | SE 7 |
10 | 4 | 3 | 7 | 4 | 6 | 25 | 15 | 13 | 6 | 6 | 6 | 2 | 1 | 14 | 14 | 20 | 9 | 7 | 9 | 2 | |
Swell 3 Height (m) Direction Period (s) | SE 13 | SSE 12 | E 8 | E 7 | SE 13 | E 7 | SE 13 | SE 13 | SE 12 | SE 13 | SE 12 | SE 11 | SE 12 | SE 11 | SE 11 | SE 13 | SE 12 | SE 11 | SSE 12 | SSE 11 | SE 10 |
27 | 15 | 4 | 4 | 7 | 1 | 7 | 7 | 6 | 7 | 6 | 5 | 5 | 5 | 4 | 6 | 6 | 5 | 13 | 12 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | — | ENE 4 | ENE 4 | — | — | — | — | — | — | S 4 | — | — | — | — | NE 3 | — | — | N 3 |
— | — | 12 | — | 7 | 12 | — | — | — | — | — | — | 4 | — | — | — | — | 2 | — | — | 2 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 73 | 4 | 0 | 73 | 40 | 4 | 73 | 52 | 11 | 74 | 61 | 28 | 11 | 11 | 52 | 73 | 52 | 54 | 73 | 77 |
Best forecast wave conditions in Santa Catarina - Norte | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










