- Forecast
- Maps
- Live
- Weather State
- Spot Information
Cassino Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Cassino surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 am Tuesday 12 May 2026 -03Forecast update in hr min s Forecast update imminent
Cassino surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cassino sea temperature is
18.2° C
(Which is normal for this time of year)How big are the waves at Cassino today?
The current surf forecast for Cassino at 7AM is: 1.6m 13s primary swell from a South-southeast direction and 0.2m 9s secondary swell from a East direction (forecast issued at 02:00am May 12). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 5ft (1.6m) | 13s |
| Afternoon (12 May) | 4.5ft (1.3m) | 13s |
| Evening (12 May) | 3.5ft (1.1m) | 13s |
Table - waves today at Cassino. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 9°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 12 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | S 11 | |
1179 | 979 | 965 | 863 | 711 | 606 | 476 | 389 | 283 | 254 | 232 | 213 | 278 | 408 | 557 | 643 | 614 | 475 | 459 | 425 | 444 | 425 | 331 | 286 | |
Wind (km/h) | ||||||||||||||||||||||||
off | cross-off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 12:15PM0.30m | 1:39AM0.46m | 12:48PM0.33m | 2:19AM0.39m | 4:13AM0.39m | 1:20PM0.37m | ||||||||||||||||||
Low Tide | 8:18AM0.19m | 7:20PM0.09m | 8:45AM0.19m | 8:33PM0.07m | 3:45AM0.39m | 9:18AM0.19m | ||||||||||||||||||
 | | |  | | | | | | | | |  | |  | | | | | | | | | | |
 | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — |
 | — | — | — | — | — | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 10 | 9 | 8 | 9 | 15 | 18 | 16 | 14 | 12 | 11 | 10 | 11 | 15 | 16 | 15 | 15 | 14 | 13 | 12 | 12 | 14 | 15 | 14 | 14 |
6 | 5 | 3 | 4 | 9 | 13 | 12 | 11 | 8 | 7 | 7 | 8 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 9 | 11 | 11 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 12 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | S 11 |
 kJ | 1179 | 979 | 965 | 863 | 711 | 606 | 476 | 389 | 283 | 254 | 232 | 213 | 278 | 408 | 557 | 643 | 614 | 475 | 459 | 425 | 444 | 425 | 331 | 286 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | SE 16 | SE 16 | SE 16 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 |
| kJ | 2 | 2 | 6 | 6 | 2 | 2 | 2 | 2 | 2 | 10 | 10 | 10 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 10 | E 10 | E 10 | E 15 | ENE 10 | E 10 | E 10 | E 10 | SE 14 | SE 14 | E 10 | E 10 | — | E 9 | E 9 |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 4 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | — | 2 | 2 |
Wind waves Height (m) Direction Period (s) | W 4 | W 3 | W 3 | W 4 | W 4 | W 4 | W 4 | W 4 | WSW 4 | W 4 | W 4 | WSW 3 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 20 | 8 | 8 | 9 | 9 | 9 | 12 | 14 | 16 | 10 | 6 | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 9 | 236 | 9 | 9 | 9 | 9 | 210 | 210 | 210 | 9 | 9 | 9 | 9 | 210 | 9 | 9 | 210 | 9 | 210 | 9 | 9 |
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 Cassino 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