Surf Forecasts:
Prainha surf forecast from 8 Jul 2026:
- Best quality surf: Friday 10 Jul, 9PM (local time) - 2.5ft (0.8m), 14s period, ESE swell with cross-offshore winds.
- Most powerful swell: Tuesday 14 Jul, 3AM (local time) - 6ft (1.8m), 8s period, SSE swell with 422 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 12AM (local time) - 1.5ft (0.5m), 10s 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 Thursday (Jul 09) at 12AM. The primary swell is predicted to be 0.5m and 10s period with a secondary swell of 0.1m and 12s. 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 8s and forecast to arrive on Tuesday (Jul 14) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Saturday (Jul 11) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Thu 9th Jul) | 1.5ft (0.5m) 10s |
| Best Surf | 9PM (Fri 10th Jul) | 2.5ft (0.8m) 14s |
| Most Powerful | 3AM (Tue 14th Jul) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Prainha over the next 16 days.
G’day, Rusty here. Let’s have a look at what’s coming up at Prainha.
Right off the bat, the first few days are pretty flat and ordinary. We’ve got small stuff around 2ft early Wednesday morning the 8th, but the combined energy is a weak 82 — not really worth paddling out for. The water’s sitting at 65°, which is about average for this time of year, so nothing weird there. It’s not until Saturday morning the 11th that things start to look interesting. That’s our first real standout.
Saturday morning the 11th brings a 3ft ESE swell with a period of 13 seconds, a good groundswell, and the combined energy kicks up to a moderate 390. Wind is glassy from the west at just 3 mph, so it’ll be clean as a whistle. This is definitely the best session on offer for the whole outlook — that long-period swell and glassy wind will have Prainha (Prainha_4) looking fun, especially for advanced surfers. For beginners, 3ft is fine, but the period’s longer, so watch for sets.
Then Tuesday morning the 14th, we get a jump in size: 5ft from the SSE with an 8-second period. That’s a short-period windswell, and combined energy is a solid 457, so there’s plenty of push. The wind is dead calm and glassy, which is excellent. But that 5ft is getting a bit much for beginners, and the short period means lumpy, close-together waves. For experienced surfers, it’s a good session though — just keep an eye on the crowds, which can pop up sometimes here.
After that, the second week goes quiet again. From the 15th to the 23rd of July, the swell drops back to 2ft to 4ft, mostly weak energy under 200, and the periods are short (8–11 seconds). Winds are often cross-onshore or glassy, but the waves are just too small and weak to get excited about. There’s a morning on the 21st with 4ft and glassy wind, but the combined energy is only 160 and period is 8 seconds — it’s surfable but very ordinary. Nothing else really stands out.
So, to sum it up: Saturday morning the 11th is the pick of the bunch — clean, glassy, decent groundswell. Tuesday morning the 14th is a close second for stronger surfers. The rest is a long gap of small, weak waves. Don’t hold your breath.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Very mild (max 17°C on Thu night, min 11°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 22°C on Sun afternoon, min 15°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | ESE 12 | ESE 12 | ESE 14 | ESE 13 | ESE 11 | ESE 13 | ESE 12 | SE 12 | SE 12 | SE 8 | SE 9 | SE 8 | SSE 8 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 81 | 83 | 58 | 66 | 60 | 58 | 53 | 175 | 307 | 346 | 163 | 290 | 264 | 159 | 278 | 84 | 95 | 156 | 331 | 76 | 68 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | cross-off | glassy | cross-on | cross | cross-off | cross | cross-off | glassy | on | cross | cross | cross-on | cross | cross-off | cross | cross | glassy | cross-on | cross |
High Tide | 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 | 2:34AM1.10m | 3:30PM1.36m | ||||||||
Low Tide | 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 | 9:42PM0.49m | 8:31AM0.08m | 9:39PM0.56m | ||||||||
 | |  | | | |  | |  |  | |  |  | | | | |  | | | | |
 | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 5:36 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | 2 | — | — | 1 | 2 | — | 1 | — | — | — | — | — | — |
Temp °C | 13 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 16 | 15 | 16 | 17 | 18 | 22 | 19 | 17 | 16 | 16 | 16 | 16 | 17 |
Feels °C | 12 | 14 | 14 | 15 | 14 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 19 | 23 | 17 | 14 | 13 | 13 | 16 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 11 | ESE 10 | ESE 10 | ESE 12 | ESE 12 | ESE 14 | ESE 13 | ESE 11 | ESE 13 | ESE 12 | SE 12 | SE 12 | SE 12 | SE 11 | E 6 | SE 9 | SE 9 | SE 9 |
| kJ | 81 | 83 | 58 | 66 | 60 | 58 | 53 | 175 | 307 | 346 | 163 | 290 | 264 | 159 | 116 | 68 | 33 | 3 | 123 | 76 | 68 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 10 | SE 12 | SE 4 | SSE 9 | NE 3 | ESE 14 | ENE 4 | SE 5 | SSE 6 | ESE 13 | SSE 10 | SE 20 | ESE 5 | E 5 | E 6 | ENE 6 | ESE 11 | E 6 | E 6 | E 6 |
| kJ | 1 | 4 | 5 | 1 | 17 | 2 | 38 | 1 | 12 | 44 | 102 | 179 | 16 | 8 | 7 | 6 | 7 | 13 | 3 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | E 8 | S 10 | — | ESE 14 | ENE 4 | E 7 | — | — | — | NE 5 | SE 12 | SE 20 | NNE 4 | — | S 18 | — | — | ENE 6 | ENE 7 |
| kJ | — | — | 1 | 2 | — | 18 | 1 | 1 | — | — | — | 1 | 38 | 15 | 4 | — | 6 | — | — | 4 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 5 | NNE 3 | — | — | — | — | — | — | NNE 5 | ENE 5 | SE 12 | SE 8 | SE 9 | SE 8 | SSE 8 | — | — |
| kJ | — | — | — | — | 1 | 4 | — | — | — | — | — | — | 2 | 13 | 278 | 84 | 95 | 156 | 331 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 52 | 0 | 0 | 4 | 4 | 0 | 80 | 0 | 0 | 52 | 4 | 4 | 4 | 33 | 52 | 129 | 61 | 0 | 73 | 4 |
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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