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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 pm Tuesday 19 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
15.4° C
(Which is 2.2°C colder than average for this time of year)How big are the waves at Cassino today?
The current surf forecast for Cassino at 1AM is: 1.0m 12s primary swell from a South direction (forecast issued at 08:00pm May 19). An open ocean swell of 0.6m 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 (20 May) | 4ft (1.2m) | 14s |
| Afternoon (20 May) | 5.5ft (1.7m) | 16s |
| Evening (20 May) | 10ft (3.0m) | 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 14°C on Wed afternoon, min 8°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||||||||
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 | 12 PM | 3 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 | SSE 15 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | |
280 | 252 | 244 | 318 | 411 | 596 | 849 | 1428 | 1591 | 3570 | 1913 | 1605 | 1249 | 1094 | 721 | 1708 | 1488 | 1319 | 1189 | 994 | 850 | 793 | 679 | 1139 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | cross | cross | cross-off | cross | cross | cross | |
High Tide | 4:19PM0.35m | 10:10PM0.71m | 11:04AM0.26m | 4:59PM0.30m | 11:05PM0.72m | 11:52AM0.25m | 5:44PM0.26m | 00:00AM0.69m | 12:41PM0.25m | |||||||||||||||
Low Tide | 6:00PM0.32m | 7:04AM-0.12m | 1:42PM0.15m | 6:40PM0.27m | 7:54AM-0.10m | 2:37PM0.14m | 7:21PM0.23m | 8:46AM-0.05m | ||||||||||||||||
 | | | | |  | | |  |  | | | |  |  | | | | | | | | | | |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:15 | — | — | — |
 | — | — | — | — | — | — | — | 5:36 | — | — | — | — | — | — | — | 5:36 | — | — | — | — | — | — | — | 5:35 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 11 | 9 | 8 | 8 | 8 | 12 | 14 | 14 | 13 | 12 | 12 | 11 | 12 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 |
9 | 7 | 5 | 3 | 3 | 3 | 7 | 8 | 9 | 9 | 7 | 7 | 7 | 8 | 9 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 | SSE 15 | SSE 16 | SSE 16 | SSE 15 | — | — | SSE 13 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 13 |
 kJ | 280 | 252 | 244 | 318 | 411 | 596 | 849 | 1428 | 1591 | 1728 | — | — | 1249 | 1094 | 721 | 1708 | 1488 | 1319 | 1189 | 994 | 850 | 793 | 679 | 1139 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSE 15 | — | — | — | — | — | — | — | — | SE 18 | SSE 17 | SSE 16 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 196 | — | — | — | — | — | — | — | — | 84 | 373 | 700 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 3 | W 3 | W 4 | W 4 | WSW 4 | WSW 4 | WSW 4 | — | — | SSE 15 | SSE 14 | SSE 14 | — | — | — | — | — | — | — | — | — | — | — | SSE 13 |
| kJ | 5 | 8 | 9 | 10 | 15 | 17 | 8 | — | — | 3570 | 1913 | 1605 | — | — | — | — | — | — | — | — | — | — | — | 633 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 210 | 9 | 9 | 9 | 224 | 235 | 375 | 293 | 293 | 336 | 293 | 336 | 274 | 274 | 9 | 235 | 235 | 235 | 235 | 235 | 235 | 235 | 235 | 515 |
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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