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Prainha Surf Forecast
/ Santa Catarina – Sul (37 surf breaks) /
Prainha surfForecast / Santa Catarina – Sul / Brazil
12 Day Weather and Surf, issued 8 am Sunday 18 May 2025 -03
Best Forecast Surf Conditions for Prainha this week:
The surf forecast for Prainha over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 19) at 12AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.4m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Prainha in the next 12 days are 2.0m 14s and forecast to arrive on Thursday (May 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (May 22) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Mon 19th May) | 4ft (1.2m) 8s |
| Best Surf | 9PM (Wed 21st May) | 6ft (1.8m) 15s |
| Most Powerful | 3AM (Thu 22nd May) | 6.5ft (2.0m) 14s |
Table - best surf conditions forecast for Prainha over the next 12 days.
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | |||||||||||||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 7 | 8 | 8 | 7 | 8 | 8 | 12 | 7 | 16 | 16 | 15 | 14 | 13 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 143 | 131 | 172 | 127 | 97 | 96 | 102 | 106 | 179 | 429 | 671 | 1505 | 1440 | 1144 | 1399 | 811 | 786 | 514 | 308 | 254 | 136 | 104 | 100 | 74 | 142 | 142 | 142 | 130 | 86 | 89 | 542 | 481 | 545 | 539 | 766 | 993 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | off | cross- off | cross- on | cross- on | off | cross- off | cross- off | off | cross- off | cross- off | cross- off | off | off | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross | cross- on | off | glass | cross- off | off | glass | on | cross- on | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:00PM 9:39PM 0.59 0.60 | 5:27AM 0.53 | 10:34PM 0.66 | 6:49AM 0.51 | 11:16PM 0.70 | 9:05AM 0.52 | 11:53PM 0.71 | 10:47AM 0.59 | 12:24AM 0.70 | 11:41AM 0.66 | 12:46AM 0.65 | 12:28PM 0.72 | 12:55AM 0.59 | 1:12PM 0.76 | 12:59AM 0.55 | 1:54PM 0.77 | 1:08AM 0.53 | 2:35PM 0.76 | 1:24AM 0.54 | 3:14PM 0.71 | 1:47AM 0.57 | 3:52PM 0.65 | 2:17AM 0.60 | |||||||||||||
Low Tide / height (m) | 12:45PM 0.16 | 7:49PM 2:12AM 0.59 0.43 | 2:02PM 0.15 | 3:20AM 0.40 | 3:11PM 0.12 | 4:20AM 0.36 | 4:15PM 0.09 | 5:10AM 0.32 | 5:16PM 0.07 | 5:54AM 0.27 | 6:14PM 0.08 | 6:33AM 0.22 | 7:10PM 0.12 | 7:10AM 0.17 | 8:05PM 0.19 | 7:44AM 0.12 | 8:58PM 0.28 | 8:19AM 0.08 | 9:48PM 0.37 | 8:56AM 0.06 | 10:35PM 0.45 | 9:37AM 0.06 | 11:19PM 0.52 | |||||||||||||
Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | |||||||||||||||||||||||||
| Sunrise | 6:48 | - | - | 6:50 | - | - | 6:50 | - | - | 6:50 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:52 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - | 6:54 | - | - |
| Sunset | - | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:29 | - | - | 5:29 | - | - | 5:29 | - | - | 5:28 | - | - | 5:28 | - | - | 5:28 | - | - | 5:27 | - | - | 5:27 | - |
 | |  | | | |  |  |  |  |  |  |  | |  | | | | | | |  | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | 2 | 1 | 2 | 8 | 12 | 20 | 2 | 8 | 8 | 8 | 10 | 13 | 2 | 1 | 1 | - | - | 5 | 4 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 29 | 22 | 23 | 24 | 20 | 22 | 23 | 19 | 17 | 17 | 17 | 16 | 16 | 17 | 18 | 18 | 19 | 21 | 21 | 20 | 24 | 25 | 20 | 21 | 24 | 19 | 22 | 20 | 19 | 20 | 21 | 18 | 21 | 21 | 17 |
| Feels °C (?) | 25 | 28 | 23 | 25 | 25 | 21 | 21 | 24 | 18 | 18 | 18 | 16 | 16 | 16 | 17 | 18 | 18 | 20 | 22 | 22 | 20 | 24 | 25 | 21 | 21 | 25 | 20 | 24 | 20 | 19 | 21 | 20 | 18 | 21 | 21 | 17 |
Short Range Forecast: Light rain (total 5mm), mostly falling on Tue morning. Warm (max 29°C on Sun afternoon, min 17°C on Tue night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 89mm), heaviest during Wed night. Very mild (max 19°C on Fri night, min 16°C on Wed night). Wind will be generally light. | Days 6-9 Weather Summary Moderate rain (total 13mm), heaviest on Sun night. Warm (max 25°C on Sun afternoon, min 18°C on Sun night). Wind will be generally light. | Long Range Forecast: Mostly dry. Warm (max 22°C on Tue morning, min 15°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 12 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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