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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 am 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 12PM is: 0.4m 9s primary swell from a South-southeast direction and 0.5m 8s secondary swell from a East direction, 0.5m 7s secondary swell from a South direction (forecast issued at 08:00am April 18). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Apr) | 1.5ft (0.5m) | 10s |
| Afternoon (18 Apr) | 3ft (0.9m) | 9s |
| Evening (18 Apr) | 5ft (1.5m) | 9s |
Table - waves today at Atlantida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| 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 | 6 PM | 9 PM | 0 AM | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 9 | 9 | 8 | 8 | 8 | 8 | 11 | 8 | 8 | 11 | 11 | 11 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 47 | 45 | 35 | 127 | 133 | 329 | 152 | 152 | 142 | 145 | 117 | 235 | 195 | 136 | 130 | 105 | 100 | 74 | 151 | 151 | 169 | 216 | 208 | 204 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross | cross- on | cross | glass | glass | glass | glass | cross- on | cross- on | cross- on | cross- on | cross | cross | cross |
High Tide / height (m) | 5:49AM 0.27 | 1:10PM 0.51 | 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 | ||||||||||||
Low Tide / height (m) | 3:39AM 0.22 | 8:56AM 0.13 | 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 | ||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tue 21 | |||||||||||||||||||||
| Sunrise | - | 6:39 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:58 | - | - | - | - | - | - | - | 5:57 | - | - | - | - | - | - | - | 5:55 | - | - | - | - |
 |  | | |  | | | | | | | | | | | | | | |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 22 | 25 | 27 | 24 | 21 | 20 | 19 | 19 | 21 | 25 | 24 | 21 | 20 | 19 | 18 | 18 | 19 | 21 | 21 | 21 | 20 | 20 | 20 |
| Feels °C (?) | 18 | 20 | 22 | 24 | 23 | 20 | 19 | 18 | 18 | 21 | 24 | 22 | 21 | 21 | 21 | 19 | 19 | 19 | 20 | 20 | 21 | 20 | 19 | 19 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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