
Surf Forecasts:
Prainha surf forecast from 24 Jul 2026:
- Best quality surf: Friday 24 Jul, 6PM (local time) - 2.5ft (0.8m), 9s period, SE swell with glassy winds.
- Most powerful swell: Friday 24 Jul, 12PM (local time) - 2.5ft (0.8m), 10s period, SE swell with 130 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 6PM (local time) - 2.5ft (0.8m), 9s period with SE 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 Friday (Jul 24) at 6PM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Prainha in the next 16 days are 0.8m 10s and forecast to arrive on Friday (Jul 24) at 12PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 7s period and expected on Monday (Jul 27) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 24th Jul) | 2.5ft (0.8m) 9s |
| Best Surf | 6PM (Fri 24th Jul) | 2.5ft (0.8m) 9s |
| Most Powerful | 12PM (Fri 24th Jul) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Prainha over the next 16 days.
The Lowdown
Alright, Rusty here, with the local skinny.
Well, look, I’m gonna be straight with you. The next couple of weeks are looking pretty flat and frustrating for us. We’ve got a long stretch of small, weak surf ahead, and the models are showing a real lack of any proper energy. It’s not a total write-off, but we’re going to have to be patient and pick our moments.
Let’s start with what little we’ve got. The first real chance to get wet comes on Friday, July 24th. The morning session at Prainha is the best we’ll see for a while. We’ve got a small, clean 3ft swell coming from the SE, with a period of 9 seconds. The wind is a light cross-offshore from the SSW at 3 mph, which will keep the surface tidy. The water is currently sitting at 67°, which is a touch warmer than normal for this time of year. The combined wave energy is weak, only 145, so don’t expect much push. It’s surfable, but it’s very ordinary. The afternoon gets worse as the wind swings onshore.
Saturday, July 25th, is a similar story. Another small 3ft SE swell, with a light cross-offshore wind in the morning from the W. It’s clean, but the energy is even weaker at 107. It’s just barely surfable.
After that, we hit a dead zone. From Sunday, July 26th, all the way through to Friday, August 1st, the swell drops right off. We’re looking at tiny waves, poor conditions, and onshore winds. There’s nothing worth paddling out for. It’s a real flat spell.
The next glimmer of hope comes on Saturday, August 2nd, in the morning. The swell fills back in to a weak 3ft from the ESE, with a bit of energy (60). The wind is a light cross-off from the S, so the surface should be clean. Still, it’s just “surfable” at best.
Monday, August 3rd, brings a similar morning: a 2ft ESE swell with a light cross-off wind. Clean, but tiny.
Then, another gap. Tuesday, August 4th, and Wednesday, August 5th are back to flat, poor conditions.
Thursday, August 6th, is a standout on paper, but we’re over a week out, so take it easy. The morning shows a glassy 3ft E swell (102 energy) with zero wind. That’s a rare treat. It’s the only morning in the whole run that’s described as “glassy.” If the forecast holds, that’s the one to pencil in, but it’s a long way off.
Saturday, August 8th, also has a glassy morning, with a 3ft E swell. Again, it’s a long-range call, but it’s another potential window.
So, the honest truth: there are no proper standouts here. The best on offer are those tiny, clean windows on the mornings of July 24th, 25th, August 2nd, 3rd, and the long-shot glassy mornings on August 6th and 8th. If you’re desperate for a slide, you’ll get wet on a longboard, but don’t expect any power or size. It’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sun night, min 15°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Wed night. Warm (max 22°C on Tue afternoon, min 18°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | NE 5 | ESE 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | SE 10 |
Wave Graph | |||||||||||||||||||||
125 | 130 | 99 | 97 | 115 | 112 | 70 | 59 | 53 | 36 | 48 | 26 | 24 | 38 | 34 | 32 | 34 | 36 | 39 | 37 | 4 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | glassy | cross-off | on | cross | cross | on | cross | cross | on | cross-on | glassy | cross-on | cross-off | cross | cross-on | cross-off | cross | cross | cross-off |
High Tide | 11:34AM0.99m | 11:33PM0.90m | 12:35PM1.08m | 00:28AM0.97m | 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 | ||||||||
Low Tide | 7:10PM0.56m | 6:41AM0.35m | 7:43PM0.51m | 7:15AM0.26m | 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 | ||||||||
6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | |
— | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | — | — | — |
Temp °C | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 17 | 18 | 20 | 19 | 19 | 21 | 22 | 21 | 19 | 19 | 19 | 17 | 17 | 17 |
Feels °C | 16 | 17 | 18 | 16 | 16 | 17 | 14 | 17 | 18 | 20 | 19 | 19 | 22 | 23 | 22 | 17 | 20 | 20 | 15 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | E 5 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
125 | 130 | 99 | 97 | 115 | 112 | 70 | 59 | 53 | 36 | 48 | 26 | 14 | 38 | 34 | 32 | 34 | 36 | 39 | 37 | 26 | |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 4 | E 7 | ENE 5 | ESE 8 | SE 13 | SE 12 | ESE 8 | ESE 9 | SSE 3 | ESE 8 | SE 11 | SSE 4 |
20 | 19 | 18 | 10 | 10 | 10 | 4 | 5 | 4 | 1 | 4 | 7 | 24 | 7 | 6 | 6 | 8 | 1 | 6 | 5 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SSE 14 | SE 15 | SE 13 | SSE 12 | SE 12 | E 7 | SE 13 | E 7 | SE 13 | E 6 | SSE 12 | SE 11 | SE 11 | ESE 8 | SE 11 | SE 8 | SE 10 |
— | — | — | — | 18 | 33 | 27 | 15 | 5 | 4 | 7 | 4 | 7 | 12 | 14 | 5 | 5 | 7 | 5 | 2 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 3 | — | ENE 4 | NE 5 | — | — | — | — | — | SSE 4 | SSE 3 | — | — |
— | — | — | — | — | — | — | — | 4 | — | 4 | 22 | — | — | — | — | — | 4 | 1 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 59 | 0 | 0 | 128 | 4 | 4 | 73 | 4 | 11 | 73 | 4 | 11 | 73 | 0 | 128 | 215 | 11 | 61 | 126 | 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.










