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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 Sunday 17 May 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
20.2° C
(Which is normal for this time of year)How big are the waves at Atlantida today?
The current surf forecast for Atlantida at 2AM is: 0.9m 5s primary swell from a South-southeast direction and 0.5m 9s secondary swell from a South direction, 0.2m 15s secondary swell from a South-southeast direction (forecast issued at 08:00pm May 17). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 5ft (1.6m) | 7s |
| Afternoon (18 May) | 6ft (1.9m) | 7s |
| Evening (18 May) | 4ft (1.2m) | 7s |
Table - waves today at Atlantida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 30mm), heaviest during Sun night. Very mild (max 17°C on Sun night, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | |||||||||||||||||||||
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 10 | SSE 10 | S 10 | SSE 5 | S 5 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 11 | SSE 13 | SSE 17 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SSE 14 | |
125 | 166 | 67 | 58 | 124 | 222 | 204 | 351 | 191 | 143 | 392 | 836 | 1779 | 1674 | 1525 | 1224 | 874 | 713 | 554 | 454 | 447 | 554 | 750 | 1240 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-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-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 5:58PM0.55m | 00:14AM0.35m | 6:40AM0.14m | 1:40PM0.44m | 7:06PM0.58m | 00:46AM0.42m | 7:37AM0.12m | 2:15PM0.41m | 8:09PM0.59m | 1:23AM0.48m | 8:28AM0.11m | 2:52PM0.37m | ||||||||||||
Low Tide | 9:51PM0.27m | 4:11AM0.06m | 9:19AM0.04m | 3:47PM0.38m | 10:36PM0.35m | 5:02AM0.01m | 10:05AM0.03m | 4:32PM0.33m | 11:17PM0.41m | 5:50AM-0.00m | 10:53AM0.03m | |||||||||||||
 | | | |  |  |  | | |  | | | |  | | | | | | | | | | | |
 | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 7:00 | — | — | — |
 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:31 |
2 | 2 | 3 | 5 | 6 | 6 | 3 | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 17 | 16 | 15 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 11 | 14 | 17 | 16 | 14 | 13 | 12 | 11 | 12 | 15 | 17 |
16 | 16 | 14 | 13 | 9 | 7 | 8 | 9 | 9 | 10 | 11 | 9 | 8 | 8 | 12 | 15 | 14 | 12 | 11 | 9 | 7 | 8 | 10 | 11 | |
Swell 1 Height (m) Direction Period (s) | E 4 | E 5 | S 10 | S 9 | SSE 14 | SSE 13 | SSE 12 | S 7 | SSE 7 | SSE 7 | SSE 11 | SSE 13 | SSE 17 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SSE 14 |
 kJ | 4 | 2 | 67 | 44 | 18 | 34 | 30 | 211 | 191 | 143 | 392 | 836 | 1779 | 1674 | 1525 | 1224 | 874 | 713 | 554 | 454 | 447 | 554 | 750 | 1240 |
Swell 2 Height (m) Direction Period (s) | SE 16 | SE 16 | SSE 15 | SSE 15 | E 7 | E 7 | SE 16 | SSE 12 | SSE 15 | SSE 12 | SSE 13 | SSE 18 | ESE 5 | ESE 5 | ESE 5 | E 5 | E 5 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 |
| kJ | 10 | 10 | 22 | 21 | 1 | 1 | 10 | 15 | 22 | 48 | 101 | 295 | 10 | 5 | 5 | 2 | 2 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | E 7 | E 7 | E 5 | E 7 | — | — | — | SSE 16 | E 11 | SSE 15 | SE 19 | ESE 6 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 2 | 1 | — | — | — | 24 | 2 | 44 | 96 | 10 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 5 | SSE 5 | S 5 | S 7 | S 7 | S 7 | — | WSW 3 | — | — | — | — | — | — | — | — | — | W 2 | W 3 | W 3 | W 3 | W 4 |
| kJ | 125 | 166 | 42 | 58 | 124 | 222 | 204 | 351 | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 4 | 7 | 8 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 180 | 180 | 190 | 209 | 209 | 222 | 257 | 222 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 32 | 0 | 0 | 0 | 0 | 18 | 18 | 32 | 45 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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