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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 8 am 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 12PM is: 1.8m 16s primary swell from a South-southeast direction and 0.2m 9s secondary swell from a East direction (forecast issued at 08:00am May 10). An open ocean swell of 1.0m 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) | 5.5ft (1.7m) | 16s |
| 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 morning). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wed 13 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 16 | SSE 16 | 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 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | |
1224 | 1512 | 1613 | 1471 | 1275 | 1432 | 1781 | 1624 | 1559 | 1517 | 1454 | 1440 | 1306 | 1226 | 1196 | 1122 | 994 | 876 | 711 | 615 | 484 | 389 | 278 | 203 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | cross-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 | 8:15AM0.19m | 4:36PM0.13m | 8:02AM0.19m | 5:57PM0.10m | 8:18AM0.19m | 7:20PM0.09m | ||||||||||||||||||
 |  |  | | | | | | | | | | | | | | | | | | | | | | |
 | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | 7:07 |
 | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:42 | — | — | — | — | — | — | — | 5:40 | — | — | — | 5:39 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 9 | 8 | 11 | 13 | 12 | 10 | 9 | 9 | 8 | 8 | 12 | 14 | 14 | 12 | 10 | 9 | 9 | 8 | 14 | 18 | 16 | 14 | 12 | 11 |
2 | 1 | 3 | 5 | 5 | 3 | 2 | 3 | 2 | 2 | 6 | 9 | 10 | 8 | 6 | 5 | 5 | 3 | 9 | 13 | 12 | 11 | 9 | 8 | |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 16 | 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 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 |
 kJ | 1224 | 1512 | 1613 | 1471 | 1275 | 1432 | 1781 | 1624 | 1559 | 1517 | 1454 | 1440 | 1306 | 1226 | 1196 | 1122 | 994 | 876 | 711 | 615 | 484 | 389 | 278 | 203 |
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 | 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 |
| kJ | 6 | 6 | 6 | 7 | 7 | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 6 | 6 | 2 | 2 | 2 | 2 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 4 | W 4 | — | — | W 4 | W 4 | W 3 | W 3 | W 3 | W 3 | W 3 | W 3 | W 4 | WSW 4 | WSW 4 |
| kJ | 56 | 56 | 45 | 45 | 45 | 54 | 50 | 48 | 45 | 27 | 13 | — | — | 9 | 14 | 6 | 6 | 8 | 6 | 6 | 5 | 12 | 10 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 354 | 515 | 420 | 545 | 336 | 354 | 236 | 336 | 235 | 235 | 235 | 235 | 210 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 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 Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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