Surf Forecasts:
How big are the waves at Prainha today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 1.5ft (0.4m), 9s period with SSE swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 0.5ft (0.2m), 12s period with SSE swell.
- Evening surf: Evening surf (19 Sep, local time) - 1ft (0.3m), 11s period with SSE swell.
The current surf forecast for Prainha at 4PM is: 0.2m 12s primary swell from a South-southeast direction and 0.3m 8s secondary swell from a South-southeast direction (forecast issued at 08:00am September 19). An open ocean swell of 1.8m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 1.5ft (0.4m) | 9s |
| Afternoon (19 Sep) | 0.5ft (0.2m) | 12s |
| Evening (19 Sep) | 1ft (0.3m) | 11s |
Table - waves today at Prainha. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 101mm), heaviest during Mon afternoon. Warm (max 22°C on Sun morning, min 13°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||||||||
6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 9 | SSE 9 | SSE 8 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | S 12 | S 12 | S 12 | S 12 | E 9 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 3 | E 10 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 39 | 25 | 24 | 15 | 15 | 25 | 25 | 11 | 11 | 11 | 11 | 516 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 8 | 262 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-on | glassy | cross | cross-off | cross | cross |
High Tide | 5:15AM0.34m | 11:33AM0.47m | 3:59PM0.39m | 11:28PM0.24m | 12:01PM0.50m | 11:41PM0.28m | 12:29PM0.53m | |||||||||||||||
Low Tide | 7:35AM0.29m | 3:00PM0.38m | 8:45PM0.17m | 2:31AM0.16m | 8:56PM0.23m | 3:52AM0.12m | 8:35PM0.27m | |||||||||||||||
 |  | | | |  |  | |  |  |  |  |  |  | | | |  | |  | | | |
 | 6:13 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — |
 | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:14 | — |
mm | — | 1 | 3 | 3 | 5 | 3 | 9 | 6 | 1 | — | — | — | 1 | — | — | — | 3 | 10 | 10 | 12 | 23 | 7 |
Temp °C | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 20 | 22 | 21 | 20 | 20 | 21 | 21 | 19 | 19 | 20 | 21 | 17 | 15 |
Feels °C | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 14 | 16 | 20 | 24 | 22 | 21 | 21 | 22 | 22 | 18 | 21 | 21 | 24 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | S 9 | SSE 9 | SSE 8 | SSE 8 | SSE 8 | SSE 11 | SSE 11 | S 12 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | ENE 10 | E 10 | ENE 10 | ENE 10 | E 10 |
| kJ | 39 | 25 | 24 | 14 | 14 | 25 | 25 | 11 | 662 | 612 | 589 | 516 | 469 | 499 | 520 | 468 | 459 | 386 | 432 | 378 | 322 | 262 |
Swell 2 Height (m) Direction Period (s) | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SE 8 | — | — | S 12 | S 12 | S 12 | S 11 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 8 | S 11 |
| kJ | 33 | 16 | 16 | 15 | 15 | 3 | — | — | 11 | 11 | 11 | 9 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 9 |
Swell 3 Height (m) Direction Period (s) | S 13 | S 11 | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 12 | S 12 | S 12 | — |
| kJ | 29 | 23 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | — |
Wind waves Height (m) Direction Period (s) | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | NE 9 | — | — | — | — | — | — | — | — | — | — | S 3 | SSW 4 |
| kJ | 134 | 219 | 278 | 353 | 353 | 400 | 408 | 592 | 1216 | 1405 | — | — | — | — | — | — | — | — | — | — | 8 | 20 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 165 | 177 | 165 | 186 | 700 | 700 | 625 | 417 | 362 | 44 | 3 | 76 | 165 | 3 | 3 | 3 | 89 | 3 | 44 | 3 | 89 | 44 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||
Header Global | ||||||||||||||||||||||
- 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.
Nearest