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Prainha Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Prainha surfForecast / Rio Grande Do Sul / Brazil
16 Day Weather and Surf, issued 2 pm Saturday 21 Mar 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
25.3° C
(Which is slightly warmer than usual)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 Sunday (Mar 22) at 3AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.8m and 9s. 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 0.9m 12s and forecast to arrive on Thursday (Mar 26) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Thursday (Mar 26) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 22nd Mar) | 2.5ft (0.8m) 9s |
| Best Surf | 9PM (Wed 25th Mar) | 3ft (0.9m) 8s |
| Most Powerful | 12AM (Thu 26th Mar) | 3ft (0.9m) 12s |
Table - best surf conditions forecast for Prainha over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 17mm), heaviest on Mon afternoon. Warm (max 27°C on Mon morning, min 22°C on Sun night). Mainly fresh winds. | Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Fri morning, min 21°C on Tue afternoon). Wind will be generally light. | ||||||||||||||||||||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 9 | 6 | 9 | 9 | 10 | 9 | 9 | 9 | 11 | 5 | 8 | 9 | 9 | 12 | 10 | 10 | 9 | 7 | 8 | 8 | 9 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 103 | 148 | 65 | 94 | 105 | 76 | 47 | 45 | 89 | 43 | 98 | 95 | 104 | 220 | 170 | 123 | 59 | 127 | 24 | 13 | 6 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross- on | off | cross | cross- on | glass | cross | cross | glass | cross- off | cross- off | cross | cross | cross- on | cross | cross | cross- on | cross | cross- off | ||
High Tide / height (m) | 7:16PM 2:08AM 0.35 0.41 | 8:24AM 0.23 | 2:41PM 0.55 | 8:34PM 2:32AM 0.41 0.42 | 9:28AM 0.20 | 3:21PM 0.50 | 9:41PM 2:57AM 0.49 0.44 | 10:24AM 0.19 | 4:03PM 0.43 | 10:41PM 0.55 | 3:22AM 11:11AM 0.45 0.21 | 4:50PM 0.35 | 11:35PM 0.60 | 11:51AM 0.23 | 5:49PM 0.26 | 12:25AM 0.62 | 12:26PM 0.26 | 1:11AM 0.62 | |||||
Low Tide / height (m) | 5:41PM 0.33 | 10:44PM 0.15 | 5:45AM 10:38AM 0.12 0.16 | 6:01PM 11:36PM 0.31 0.26 | 6:27AM 11:22AM 0.04 0.15 | 6:29PM 12:34AM 0.29 0.35 | 7:09AM 0.00 | 12:15PM 0.15 | 6:58PM 1:42AM 0.26 0.42 | 7:51AM 0.00 | 1:19PM 0.15 | 7:27PM 0.24 | 8:34AM 0.04 | 2:33PM 0.14 | 7:51PM 0.22 | 9:18AM 0.11 | 3:53PM 0.10 | 10:07AM 0.20 | |||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | |||||||||||||||||
| Sunrise | - | - | 6:22 | - | - | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - | 6:26 | - | - | 6:26 | ||
| Sunset | 6:29 | - | - | 6:28 | - | - | 6:27 | - | - | 6:25 | - | - | 6:23 | - | - | 6:22 | - | - | 6:22 | - | - | ||
 |  | |  |  | | | |  |  |  | | |  | | | | | | | | |||
Rain (mm) | - | - | - | 3 | 2 | - | 7 | 5 | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
| Temp. °C | 26 | 24 | 26 | 25 | 24 | 27 | 26 | 23 | 24 | 22 | 21 | 23 | 23 | 23 | 25 | 26 | 24 | 27 | 26 | 24 | 31 | ||
| Feels °C (?) | 26 | 25 | 28 | 27 | 28 | 27 | 26 | 26 | 24 | 21 | 22 | 24 | 24 | 27 | 26 | 27 | 27 | 27 | 27 | 26 | 32 | ||
- Map Icons:
Break
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 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 17 km (11 miles) from Torres. If you plan a holiday in Rio Grande Do Sul, look for hotels and other accommodation in Torres. Torres has rooms for a wide range of budgets as well as car hire and transport links.
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