- Forecast
- Maps
- Live
- Weather State
- Spot Information
Atlantida Surf Forecast
/ Rio Grande Do Sul (19 surf breaks) /
Surf Forecasts:
Atlantida surfForecast / Rio Grande Do Sul / Brazil
48hr Weather and Surf, issued 2 pm Monday 18 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
18.5° C
(Which is 1.8°C colder than average for this time of year)How big are the waves at Atlantida today?
The current surf forecast for Atlantida at 5PM is: 1.5m 8s primary swell from a South direction and 1.2m 8s secondary swell from a South direction, 0.2m 15s secondary swell from a South-southeast direction (forecast issued at 02:00pm May 18). The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 5ft (1.6m) | 8s |
| Evening (18 May) | 4.5ft (1.4m) | 8s |
Table - waves today at Atlantida. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Tue afternoon, min 11°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
S 7 | S 8 | S 8 | S 8 | S 11 | SSE 13 | SSE 17 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 | SSE 15 | S 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | |
152 | 326 | 291 | 247 | 326 | 735 | 1842 | 1674 | 1525 | 1095 | 874 | 713 | 554 | 528 | 519 | 628 | 774 | 1075 | 1680 | 4221 | 2731 | 2721 | 2541 | 2221 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 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 | 9:07PM0.59m | 2:06AM0.52m | |||||||||||||
Low Tide | 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 | 5:17PM0.27m | 11:58PM0.45m | 6:37AM0.02m | ||||||||||||
 | |  |  | | | |  | | | | | | | | | | | | | | |  | | |
 | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — |
 | — | 5:32 | — | — | — | — | — | — | — | 5:32 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | 5:31 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 14 | 13 | 12 | 11 | 11 | 11 | 15 | 18 | 16 | 14 | 13 | 12 | 11 | 11 | 15 | 17 | 15 | 13 | 13 | 13 | 12 | 12 |
10 | 11 | 11 | 10 | 10 | 8 | 9 | 9 | 12 | 15 | 13 | 12 | 10 | 8 | 7 | 7 | 9 | 11 | 11 | 9 | 10 | 10 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | S 7 | S 8 | S 8 | S 8 | S 11 | SSE 13 | SSE 17 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 14 | SSE 15 | SSE 16 | SSE 16 | SSE 15 | SSE 14 | SSE 14 |
 kJ | 152 | 177 | 187 | 200 | 326 | 735 | 1842 | 1674 | 1525 | 1095 | 874 | 713 | 554 | 528 | 519 | 628 | 774 | 1075 | 1680 | 2652 | 2731 | 2721 | 2541 | 2221 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 15 | SSE 15 | SSE 13 | SSE 18 | E 5 | E 5 | — | — | — | — | — | E 7 | E 7 | E 7 | E 7 | E 7 | — | — | — | — | — | — |
| kJ | 30 | 15 | 22 | 44 | 101 | 295 | 2 | 2 | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 16 | SSE 16 | — | SE 21 | SE 19 | SSE 18 | — | — | — | — | — | — | — | — | E 9 | E 8 | — | NE 7 | — | — | — | — | — | — |
| kJ | 10 | 24 | — | 17 | 96 | 528 | — | — | — | — | — | — | — | — | 1 | 1 | — | 2 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | S 8 | S 8 | S 8 | — | — | — | — | — | — | — | — | W 2 | W 3 | W 3 | W 3 | W 4 | WSW 4 | W 4 | S 16 | — | — | — | — |
| kJ | 4 | 326 | 291 | 247 | — | — | — | — | — | — | — | — | 1 | 4 | 8 | 11 | 12 | 13 | 9 | 4221 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 32 | 18 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 39 | 45 | 190 | 180 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Rio Grande Do Sul | ||||||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- 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
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Atlantida surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest