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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 Saturday 16 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
15.7° C
(Which is 2.0°C colder than average for this time of year)How big are the waves at Cassino today?
The current surf forecast for Cassino at 3AM is: 0.5m 10s primary swell from a South-southeast direction and 0.1m 8s secondary swell from a East direction, 0.4m 4s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 16). The wind direction is predicted to be cross-shore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2.5ft (0.8m) | 10s |
| Afternoon (17 May) | 3.5ft (1.0m) | 4s |
| Evening (17 May) | 5ft (1.6m) | 6s |
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 15°C on Sat night, min 9°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||||||||
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 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 4 | S 5 | S 6 | S 6 | S 6 | S 7 | SE 16 | SSE 9 | S 10 | S 10 | SSE 13 | SSE 17 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | |
128 | 158 | 82 | 58 | 133 | 131 | 38 | 40 | 113 | 188 | 170 | 128 | 111 | 10 | 62 | 216 | 450 | 444 | 1134 | 1184 | 1024 | 800 | 659 | 458 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-on | cross | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | |
High Tide | 7:20PM0.49m | 1:55AM0.14m | 8:31AM0.31m | 3:03PM0.41m | 8:18PM0.58m | 9:25AM0.29m | 3:40PM0.39m | 9:14PM0.66m | 10:15AM0.28m | |||||||||||||||
Low Tide | 4:24PM0.38m | 11:56PM0.10m | 4:39AM0.05m | 11:17AM0.19m | 4:50PM0.38m | 5:26AM-0.04m | 12:03PM0.18m | 5:23PM0.36m | 6:15AM-0.10m | 12:51PM0.17m | ||||||||||||||
 | | |  | |  | | | | | | | |  |  | |  | | | | | | | | |
 | — | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:13 | — | — | — |
 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 13 | 13 | 13 | 12 | 12 | 11 | 13 | 14 | 13 | 13 | 12 | 11 | 10 | 9 | 12 | 14 |
11 | 12 | 14 | 13 | 11 | 11 | 11 | 10 | 7 | 8 | 8 | 8 | 8 | 6 | 8 | 10 | 11 | 11 | 10 | 8 | 7 | 6 | 8 | 9 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | SSE 10 | SSE 10 | E 8 | SE 12 | SSE 10 | SE 12 | E 12 | E 7 | — | SSE 13 | SE 16 | SE 16 | SSE 9 | S 21 | S 10 | SSE 13 | SSE 17 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 13 |
 kJ | 1 | 1 | 82 | 58 | 1 | 6 | 38 | 6 | 3 | 1 | — | 17 | 10 | 10 | 62 | 9 | 302 | 444 | 1134 | 1184 | 1024 | 800 | 659 | 458 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 12 | E 8 | S 16 | E 8 | E 7 | NE 4 | E 7 | E 7 | — | — | SE 15 | — | SSE 20 | SSE 19 | — | — | — | — | — | E 6 |
| kJ | 1 | 1 | 1 | 1 | 3 | 1 | 5 | 1 | 1 | 1 | 1 | 1 | — | — | 9 | — | 79 | 137 | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 12 | S 18 | S 17 | E 12 | — | E 7 | E 7 | — | SE 16 | — | — | E 7 | — | SE 20 | — | — | — | — | — | — | — |
| kJ | — | — | — | 6 | 7 | 6 | 3 | — | 1 | 1 | — | 10 | — | — | 1 | — | 98 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 11 | SSE 10 | SSE 4 | SSE 4 | SSE 10 | SSE 10 | S 4 | S 4 | S 5 | S 6 | S 6 | S 6 | S 7 | S 5 | SSW 5 | S 10 | S 10 | — | — | — | — | WSW 3 | — | — |
| kJ | 128 | 158 | 5 | 5 | 133 | 131 | 16 | 40 | 113 | 188 | 170 | 128 | 111 | 68 | 50 | 216 | 450 | — | — | — | — | 3 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 240 | 210 | 236 | 236 | 293 | 274 | 293 | 530 | 515 | 515 | 210 | 210 | 210 | 210 | 235 | 235 | 235 | 9 | 9 | 9 | 9 | 236 | 235 | 235 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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