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Prainha Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Prainha surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 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)How big are the waves at Prainha today?
The current surf forecast for Prainha at 1AM is: 1.4m 6s primary swell from a Northeast direction and 0.7m 9s secondary swell from a East-southeast direction (forecast issued at 08:00pm March 21). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Mar) | 2.5ft (0.8m) | 9s |
| Afternoon (22 Mar) | 2.5ft (0.8m) | 9s |
| Evening (22 Mar) | 2.5ft (0.8m) | 10s |
Table - waves today at Prainha. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 6 | 6 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 103 | 71 | 114 | 119 | 84 | 84 | 84 | 84 | 103 | 105 | 105 | 100 | 110 | 98 | 76 | 47 | 45 | 64 | 46 | 45 | 30 | 40 | 59 | 28 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | glass | cross- off | cross | cross- on | cross- on | glass | glass | cross- off | cross | cross | cross | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off | cross | cross | cross |
High Tide / height (m) | 7:16PM 0.35 | 2:08AM 0.41 | 8:24AM 0.23 | 2:41PM 0.55 | 8:34PM 0.41 | 2:32AM 0.42 | 9:28AM 0.20 | 3:21PM 0.50 | 9:41PM 0.49 | 2:57AM 0.44 | 10:24AM 0.19 | |||||||||||||
Low Tide / height (m) | 5:41PM 0.33 | 10:44PM 0.15 | 5:45AM 0.12 | 10:38AM 0.16 | 6:01PM 0.31 | 11:36PM 0.26 | 6:27AM 0.04 | 11:22AM 0.15 | 6:29PM 0.29 | 12:34AM 0.35 | 7:09AM 0.00 | 12:15PM 0.15 | ||||||||||||
Sat 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - |
| Sunset | 6:29 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - | - |
 |  | |  |  | | |  |  | | | | | | | |  |  | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | 2 | 1 | - | - | - | - | - | - | 2 | 2 | 1 | 3 | - | - | - | - | 1 |
| Temp. °C | 25 | 24 | 24 | 24 | 24 | 24 | 26 | 24 | 24 | 24 | 23 | 22 | 22 | 24 | 27 | 26 | 24 | 23 | 23 | 23 | 23 | 24 | 22 | 21 |
| Feels °C (?) | 26 | 25 | 26 | 28 | 26 | 26 | 27 | 26 | 28 | 28 | 26 | 24 | 24 | 26 | 27 | 25 | 23 | 24 | 26 | 26 | 26 | 26 | 21 | 21 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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