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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 Sunday 10 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
20.0° C
(Which is 1.7°C warmer than normal for this time of year)How big are the waves at Cassino today?
The current surf forecast for Cassino at 10PM is: 1.8m 15s primary swell from a South-southeast direction and 0.2m 9s secondary swell from a East direction (forecast issued at 02:00pm May 10). An open ocean swell of 1.2m 5s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 May) | - | - |
| Afternoon (10 May) | 6ft (1.8m) | 15s |
| Evening (10 May) | 6ft (1.8m) | 15s |
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 8°C on Sun night). Winds decreasing (fresh winds from the W on Sun afternoon, light winds from the W by Wed morning). | ||||||||||||||||||||||||
Sun 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 16 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 11 | |
1613 | 1471 | 1275 | 1432 | 1781 | 1689 | 1559 | 1496 | 1433 | 1440 | 1306 | 1325 | 1106 | 994 | 979 | 863 | 711 | 606 | 476 | 383 | 278 | 203 | 183 | 163 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | cross-off | off | off | off | cross-off | off | off | off | off | off | off | off | off | off | off | |
High Tide | 11:25AM0.22m | 00:29AM0.49m | 11:45AM0.26m | 1:01AM0.49m | 12:15PM0.30m | 1:39AM0.46m | ||||||||||||||||||
Low Tide | 4:36PM0.13m | 8:02AM0.19m | 5:57PM0.10m | 8:18AM0.19m | 7:20PM0.09m | 8:45AM0.19m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — |
 | — | 5:43 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | — | — | 5:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 13 | 12 | 10 | 10 | 9 | 8 | 8 | 12 | 14 | 14 | 12 | 10 | 9 | 8 | 8 | 15 | 18 | 16 | 14 | 12 | 11 | 10 | 10 |
3 | 6 | 5 | 3 | 3 | 2 | 2 | 2 | 6 | 9 | 10 | 8 | 6 | 5 | 3 | 3 | 10 | 13 | 12 | 11 | 9 | 8 | 7 | 7 | |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | S 11 |
 kJ | 1613 | 1471 | 1275 | 1432 | 1781 | 1689 | 1559 | 1496 | 1433 | 1440 | 1306 | 1325 | 1106 | 994 | 979 | 863 | 711 | 606 | 476 | 383 | 278 | 203 | 183 | 163 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | SE 16 | SE 16 | SE 16 |
| kJ | 6 | 7 | 7 | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 6 | 2 | 2 | 2 | 2 | 10 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 16 | E 10 | E 10 | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 4 | WSW 4 | W 4 | — | W 4 | W 4 | W 4 | W 4 | W 3 | W 3 | W 3 | W 3 | W 4 | W 4 | W 4 | W 3 | WNW 4 |
| kJ | 54 | 34 | 45 | 59 | 59 | 59 | 48 | 26 | 18 | 16 | — | 21 | 9 | 9 | 9 | 8 | 6 | 6 | 6 | 9 | 9 | 9 | 3 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 420 | 515 | 515 | 354 | 236 | 375 | 235 | 235 | 235 | 235 | 210 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 210 | 9 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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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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