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Prainha Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Surf Forecasts:
Prainha surfForecast / Santa Catarina – Sul / Brazil
16 Day Weather and Surf, issued 2 am Thursday 21 May 2026 -03Forecast update in hr min s Forecast update imminent
Prainha surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Prainha sea temperature is
20.5° C
(Which is 1.1°C colder than average for this time of year)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 (May 21) at 6PM. The primary swell is predicted to be 2.5m and 14s period. 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 3.0m 14s and forecast to arrive on Thursday (May 21) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Wednesday (May 27) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 21st May) | 8ft (2.5m) 14s |
| Best Surf | 6PM (Thu 21st May) | 8ft (2.5m) 14s |
| Most Powerful | 12PM (Thu 21st May) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Prainha over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Fri night. Very mild (max 17°C on Thu afternoon, min 12°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Warm (max 22°C on Tue morning, min 15°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 7 | S 10 | SE 16 | SSE 14 | SSE 12 | SSE 12 | SSW 6 | S 10 | S 10 | S 10 | |
3269 | 2803 | 2541 | 2167 | 1750 | 1211 | 730 | 505 | 446 | 343 | 467 | 131 | 92 | 127 | 597 | 373 | 224 | 150 | 80 | 73 | 51 | |
Wind (km/h) | |||||||||||||||||||||
off | cross-off | cross-off | glassy | cross-off | cross-off | glassy | off | glassy | off | cross-off | cross-off | cross-on | on | cross-on | glassy | cross-off | off | off | cross-off | cross-off | |
High Tide | 10:39PM0.66m | 3:47AM0.59m | 11:24PM0.64m | 4:48AM0.57m | 11:54PM0.61m | 6:16AM0.53m | 00:07AM0.57m | 8:32AM0.53m | 11:55PM0.55m | 10:44AM0.58m | 11:32PM0.56m | 11:39AM0.63m | 11:41PM0.58m | ||||||||
Low Tide | 12:14PM0.14m | 1:57AM0.57m | 1:26PM0.17m | 2:50AM0.55m | 2:35PM0.19m | 3:37AM0.49m | 3:37PM0.20m | 4:20AM0.42m | 4:33PM0.22m | 5:00AM0.34m | 5:23PM0.23m | 5:37AM0.26m | 6:09PM0.25m | ||||||||
 | |  |  |  |  |  | |  | | |  | | | | | | | | | | |
 | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 5:30 | — | — | 5:29 | — | — | 5:29 | — | — | 5:29 | — | — | 5:28 | — | — | 5:28 | — | — | 5:28 | — |
— | — | — | — | — | 11 | 1 | 5 | 2 | — | — | — | — | — | 3 | — | — | — | — | — | — | |
Temp °C | 16 | 17 | 13 | 17 | 17 | 15 | 14 | 15 | 16 | 19 | 20 | 17 | 21 | 21 | 18 | 22 | 19 | 18 | 20 | 20 | 16 |
12 | 13 | 11 | 16 | 16 | 15 | 15 | 15 | 16 | 20 | 20 | 17 | 20 | 20 | 18 | 23 | 18 | 16 | 18 | 18 | 15 | |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 12 | E 7 | E 8 | ENE 8 | E 7 | SSE 7 | SE 7 | SE 7 | SSE 14 | SSE 12 | SSE 12 | S 6 | S 10 | SE 6 | ESE 6 |
 kJ | 3269 | 2803 | 2541 | 2167 | 1750 | 1211 | 730 | 179 | 265 | 173 | 112 | 131 | 69 | 63 | 597 | 373 | 224 | 91 | 80 | 28 | 31 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | E 9 | ESE 6 | SSE 12 | SSE 11 | SSE 11 | — | E 7 | S 10 | S 9 | SE 7 | ESE 7 | ESE 7 | SSE 11 | E 7 | S 10 | S 10 |
| kJ | — | — | — | — | — | 2 | 36 | 505 | 446 | 343 | — | 59 | 92 | 64 | 45 | 51 | 38 | 91 | 34 | 73 | 51 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSE 10 | E 7 | SE 16 | ENE 6 | E 13 | ENE 6 | E 7 | SSW 5 | E 7 | E 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 131 | 44 | 127 | 12 | 3 | 3 | 23 | 9 | 17 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 4 | W 2 | SSE 11 | — | — | — | — | — | S 4 | SSW 6 | SSW 5 | SW 4 | — |
| kJ | — | — | — | — | — | — | — | — | 16 | 1 | 467 | — | — | — | — | — | 9 | 150 | 22 | 5 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 51 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 6 | 5 | 0 | 53 | 0 | 0 | 53 | 0 |
Best forecast wave conditions in Santa Catarina - Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Prainha surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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 26 km (16 miles) from the city of Santo Amaro da Imperatriz. If you plan a holiday in Santa Catarina - Sul, look for hotels and other accommodation in Santo Amaro da Imperatriz. Santo Amaro da Imperatriz has rooms for a wide range of budgets as well as car hire and transport links.
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