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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 pm 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 7PM is: 1.2m 13s primary swell from a South-southeast direction and 0.1m 9s secondary swell from a East direction (forecast issued at 02:00pm May 12). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | - | - |
| 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 11°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Fri 15 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | S 11 | SSE 11 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | |
624 | 606 | 522 | 389 | 283 | 226 | 232 | 260 | 331 | 503 | 585 | 633 | 604 | 501 | 393 | 380 | 374 | 374 | 320 | 245 | 191 | 180 | 176 | 176 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross-off | off | off | off | |
High Tide | 12:15PM0.30m | 1:39AM0.46m | 12:48PM0.33m | 2:19AM0.39m | 4:13AM0.39m | 1:20PM0.37m | 2:14AM0.29m | 6:21AM0.35m | ||||||||||||||||
Low Tide | 7:20PM0.09m | 8:45AM0.19m | 8:33PM0.07m | 3:45AM0.39m | 9:18AM0.19m | 9:41PM0.07m | 3:08AM0.29m | |||||||||||||||||
 | |  | | | | | |  | | |  | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — |
 | — | 5:40 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | 5:38 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 18 | 16 | 14 | 12 | 11 | 11 | 12 | 16 | 16 | 15 | 15 | 14 | 13 | 13 | 12 | 14 | 15 | 14 | 14 | 13 | 12 | 11 | 11 |
10 | 12 | 12 | 10 | 8 | 7 | 8 | 10 | 13 | 13 | 13 | 13 | 12 | 10 | 11 | 10 | 10 | 11 | 11 | 12 | 11 | 10 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | S 11 | SSE 11 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
 kJ | 624 | 606 | 522 | 389 | 283 | 226 | 232 | 260 | 331 | 503 | 585 | 633 | 604 | 501 | 393 | 380 | 374 | 374 | 320 | 245 | 191 | 180 | 176 | 176 |
Swell 2 Height (m) Direction Period (s) | 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 | E 9 | E 13 | SE 14 | E 9 |
| kJ | 2 | 2 | 2 | 2 | 2 | 10 | 10 | 10 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 7 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | E 10 | E 10 | E 10 | SE 15 | SE 15 | E 14 | E 10 | E 10 | E 10 | SE 14 | E 10 | E 10 | — | E 9 | E 13 | E 13 | E 9 | E 9 | E 9 |
| kJ | — | — | — | — | — | 2 | 2 | 2 | 9 | 8 | 4 | 8 | 8 | 8 | 8 | 8 | 7 | — | 7 | 3 | 3 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | W 4 | W 4 | W 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | W 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 14 | 9 | 14 | 12 | 15 | 16 | 7 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 262 | 9 | 9 | 9 | 9 | 235 | 210 | 210 | 9 | 9 | 210 | 235 | 9 | 9 | 9 | 9 | 9 | 235 | 9 | 235 | 9 | 9 | 9 | 9 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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