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Atlantida Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Atlantida surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 8 pm Saturday 18 Apr 2026 -03Forecast update in hr min s Forecast update imminent
Atlantida surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Atlantida sea temperature is
23.4° C
(Which is slightly warmer than usual)How big are the waves at Atlantida today?
The current surf forecast for Atlantida at 12AM is: 1.0m 9s primary swell from a South direction and 0.4m 8s secondary swell from a East direction (forecast issued at 08:00pm April 18). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Apr) | 3ft (0.9m) | 8s |
| Afternoon (19 Apr) | 3.5ft (1.1m) | 8s |
| Evening (19 Apr) | 3ft (0.9m) | 8s |
Table - waves today at Atlantida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 397 | 322 | 148 | 142 | 138 | 107 | 104 | 157 | 103 | 98 | 91 | 105 | 94 | 63 | 149 | 172 | 204 | 216 | 208 | 173 | 170 | 170 | 170 | 145 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross | cross- on | cross- on | glass | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross- on | cross- on |
High Tide / height (m) | 5:59PM 0.43 | 12:56AM 0.35 | 7:02AM 0.19 | 1:46PM 0.50 | 7:17PM 0.47 | 1:19AM 0.39 | 8:07AM 0.15 | 2:23PM 0.48 | 8:24PM 0.52 | 1:47AM 0.44 | 9:04AM 0.14 | |||||||||||||
Low Tide / height (m) | 4:07PM 0.39 | 9:50PM 0.17 | 4:32AM 0.11 | 9:34AM 0.11 | 4:37PM 0.37 | 10:40PM 0.27 | 5:19AM 0.03 | 10:15AM 0.09 | 5:11PM 0.32 | 11:30PM 0.36 | 6:05AM -0.02 | 11:03AM 0.09 | ||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:57 | - | - | - | - | - | - | - | 5:55 | - | - | - | - | - | - | - | 5:54 |
 | | | | |  | | | | | | | | | | | |  | | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 23 | 21 | 20 | 19 | 19 | 21 | 24 | 23 | 21 | 20 | 19 | 19 | 18 | 19 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 20 | 21 | 21 |
| Feels °C (?) | 21 | 20 | 19 | 18 | 18 | 20 | 23 | 22 | 21 | 22 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 19 | 19 | 18 | 17 | 20 | 21 | 21 |
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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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