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Surf Forecasts:

Atlantida surf break

Atlantida surfForecast / Rio Grande Do Sul / Brazil

information circle12 Day Weather and Surf, issued 2 am Thursday 18 Sep 2025 -03
Forecast 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
18.2° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Atlantida this week:

The surf forecast for Atlantida over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 9PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Atlantida in the next 12 days are 1.9m 10s and forecast to arrive on Thursday (Sep 18) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 7s period and expected on Sunday (Sep 21) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 19th Sep)4.5ft (1.3m) 8s
Best Surf 9PM (Mon 22nd Sep)5ft (1.5m) 11s
Most Powerful12PM (Thu 18th Sep)6ft (1.9m) 10s

Table - best surf conditions forecast for Atlantida over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 19mm), heaviest on Sat night. Warm (max 22°C on Fri night, min 17°C on Thu night). Winds decreasing (fresh winds from the NE on Thu afternoon, calm by Fri night).

Days 3-6 Weather Summary Heavy rain (total 80mm), heaviest during Sun afternoon. Warm (max 20°C on Sun morning, min 13°C on Mon afternoon). Winds decreasing (fresh winds from the SW on Mon afternoon, calm by Tue night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
1
0
2
1
2
0
2
0
2
0
0
3
1
2
3
2
0
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
ENE
2.1
ENE
2.2
ENE
1.7
ENE
1.5
E
1.2
E
1.1
E
1
E
1.5
ENE
0.9
ENE
1.3
ENE
1.1
ENE
1.3
S
1.5
S
1.4
S
1.2
S
1.3
S
1.4
SSE
1.5
SSE
1.5
SSE
1.5
SSE
Period(s) (?)9679988889986711111111101110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)517339485453340205161134309146249164137229466364426478458476469
Wind
(km/h)
20
NE
35
NE
25
NE
20
NE
10
NE
5
NNE
5
NE
5
NW
15
NNE
0
ENE
20
E
15
N
25
SW
30
SW
10
WNW
25
WSW
20
SW
5
SSW
10
ENE
15
E
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on		crosscrosscross-
on		glasscross-
on		cross-
off		crossglasscross-
on		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		glasscross-
on		cross-
on		cross
High Tide
/ height (m)
2:15PM
0.55
9:03PM
0.35
2:53PM
0.50
10:35PM
0.42
3:30PM
0.44
11:27PM
0.48
12:36PM 3:59PM
0.41 0.37
12:10AM
0.52
12:53PM
0.44
12:49AM
0.55
1:15PM
0.45
1:26AM
0.56
1:40PM
0.46
7:16PM 2:02AM
0.17 0.55
Low Tide
/ height (m)
6:38PM
0.32
6:20AM
-0.01
7:02PM
0.27
7:04AM
-0.03
7:33PM
0.24
7:44AM
-0.02
3:20PM
0.37
8:03PM
0.20
8:21AM
0.01
8:33PM
0.18
8:57AM
0.06
9:00PM
0.16
9:32AM
0.12
6:03PM 9:24PM
0.17 0.15
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise6:15--6:13--6:11--6:11--6:09--6:09--6:07--
Sunset-6:14--6:14--6:15--6:15--6:15--6:15--6:16-
clear
clear
part cloud
part cloud
part cloud
rain showers
cloud
light rain
heavy rain
heavy rain
heavy rain
heavy rain
heavy rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
cloud
Rain (mm)
-----1-315152722142-------
Temp. °C202018212122222220201919151414171915161616
Feels °C (?)17161520212323241923181811910121413131312
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Rio Grande Do Sul

  1. weather stationWind Update Light wind has turned cross-on at Atlantida (light winds from the ENE at Osvaldo Kroeff wx 82 km from Atlantida). 1.9m 9s swell from the E with a 1.0m 12s groundswell from the ESE. 2 swells combining to make bigger set waves.

    38 minutes ago Atlantida
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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.

View detailed surf forecast for Atlantida at:
surf-forecast.com

Information about the Atlantida Surf forecast

The above surf forecast table for Atlantida provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Atlantida can be found by selecting the local surf guide option on the grey menu. Our Atlantida surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Atlantida) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Atlantida may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Rio Grande Do Sul? If you are looking for accommodation near Atlantida, camping, hotels and holiday cottages in Rio Grande Do Sul, consider staying in Capao da Canoa which is 8 km (5 miles) away. Other places in and around Rio Grande Do Sul where you can find information about places to rent, and car hire include Tramandai which is 21 km (13 miles) away, Osorio, Rolante and Torres.

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