Atlantida Surf Break

Lat Long: 29.81° S 50.05° W

Atlantida Surf Forecast and Surf Report

Issued: 8 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Atlantida sea temperature is
15.5°C
1.5° 

Atlantida surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Atlantida surf forecast from 14 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 9PM (local time) - 10ft (3.0m), 9s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Sunday 20 Sep, 9PM (local time) - 10ft (3.0m), 9s period, ENE swell with 1,376 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 9PM (local time) - 3ft (0.9m), 8s period with SSE swell.

Best Forecast Surf Conditions for Atlantida this week:

The surf forecast for Atlantida over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 9PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Atlantida in the next 16 days are 3.0m 9s and forecast to arrive on Sunday (Sep 20) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Sep 15) at 9AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 14th Sep)3ft (0.9m) 8s
Best Surf 9PM (Sun 20th Sep)10ft (3.0m) 9s
Most Powerful 9PM (Sun 20th Sep)10ft (3.0m) 9s

Table - best surf conditions forecast for Atlantida over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let's take a look at what's cookin' for Atlantida over this 16-day stretch. Gonna be a bit of a mixed bag, with some quiet days and a couple of decent windows to keep an eye on.

First up, the water temp is sitting at 60°, which is about two and a half degrees colder than what you'd normally expect this time of year – so you'll be wanting a thicker wetsuit.

We kick off on Monday the 14th with a bit of a tease. The morning is glassy with a clean 4ft southerly swell. The wave energy is low though, with the combined swell energy only reading 239. It's surfable, but you'll be working for 'em. The afternoon turns to junk as the wind swings onshore.

Tuesday and Wednesday are a tale of two halves. Mornings look clean with the wind tending cross-offshore, pushing in 3ft swells. The energy is still modest (244 and 162). But afternoons get chopped up by the seabreeze again. Tuesday afternoon has a bit more period behind it (10 seconds), but with that 12 mph cross-wind, it's not worth paddling out for.

We hit a real lull from Thursday the 17th through to Saturday the 19th. The wind is howling from the northeast, strong and messy, tearing up the 4ft to 8ft swells. The water gets lumpy and choppy. On Saturday, that swell jumps up but it's a short-period 7-second east-northeast windswell, just a washout. This is a good stretch to stay on the sand.

Sunday the 20th is a weird one. We've got a solid 8ft swell, but it's from the east-northeast with a chunky combined energy of 1093 to 1107. Problem is, it's a short period windswell with cross-shore winds. At this size and with this messy wind, this beach/pier setup looks more interesting for kite surfing than paddle surfing. The conditions are marginal at best.

Now, there's a flicker of hope on Monday the 21st. The morning is glassy and clean with a 5ft easterly swell. The period is a solid 9 seconds, so there's a bit of push behind it. Combined energy is moderate at 467. This is the best-looking window in the first week. Grab it before the onshore wind ruins the afternoon.

We slide into another quiet period from Tuesday the 22nd to Friday the 25th. The swell drops back to the 3ft to 4ft range, and the wind is a constant problem, mostly cross or cross-on from the northeast. Not worth getting excited about.

Then we get to Wednesday the 23rd. This is the standout of the whole run. The morning is dead flat calm with glassy conditions. The swell is a clean 7ft from the east-southeast with an 8-second period. The combined wave energy is pumping at 581. At 7ft, this is getting a bit big for beginners, but for the experienced crew, this is the session to circle. The wind is perfectly clean.

After that, it fades again. The rest of the week into the start of October is a mix of small, weak swells and windy, choppy afternoons. The swell on Tuesday the 29th tries to build again, hitting 6ft from the SSE (combined energy of 1036), but it's got an onshore wind on it. It’s a big, messy closeout most likely.

So, the bottom line: it's a slow run. Don't expect too much. The two mornings to lock in are Monday the 21st for a clean, fun-size wave, and especially Wednesday the 23rd for the best swell of the period with perfect glass. Everything else is a fight against the wind.

This is Rusty, signing off.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Tue afternoon, min 11°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 27mm), heaviest during Sat night. Very mild (max 18°C on Sat night, min 14°C on Thu morning). Winds increasing (light winds from the NE on Fri morning, strong winds from the ENE by Sat night).

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
2
2
0
1
1
0
1
0
0
0
1
0
0
0
0
0
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
S
9
0.9
SSE
8
0.9
SSE
8
1
SE
8
0.8
SSE
10
0.7
SSE
10
1
S
8
1.5
S
10
1.3
SSE
11
1.4
SSE
11
1.3
SSE
11
1.1
SSE
10
0.9
SSE
9
0.9
SSE
9
1.9
ENE
7
1.9
ENE
7
2.4
ENE
7
2.5
ENE
8
2.5
ENE
9
2.5
ENE
9
2
ENE
9
Wave Graph
Metric surfscale
Energy kJ
181
112
115
116
133
102
130
450
415
431
359
223
124
119
320
330
603
742
1083
1098
669
Wind (km/h)
0
S
10
SE
5
WNW
15
SW
20
S
5
WNW
15
SW
15
S
15
NNE
20
NE
30
NE
15
NNE
10
NE
20
NE
30
NE
25
NE
25
ENE
40
ENE
15
NNE
5
NE
0
SSW
Wind State
glassy
on
glassy
cross-off
cross
off
cross-off
cross
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
cross
cross
glassy
High Tide
1:54PM0.47m
8:17PM0.18m
8:26AM0.29m
2:23PM0.48m
9:19PM0.15m
3:01AM0.51m
2:51PM0.47m
10:15PM0.15m
3:40AM0.45m
3:17PM0.45m
10:51PM0.17m
4:21AM0.39m
3:40PM0.41m
11:11PM0.19m
5:09AM0.32m
3:47PM0.38m
11:26PM0.23m
12:00PM0.49m
11:39PM0.27m
Low Tide
10:05AM0.16m
5:58PM0.13m
9:59PM0.16m
6:17AM0.24m
6:40PM0.09m
6:43AM0.25m
7:18PM0.08m
7:07AM0.26m
12:17PM0.35m
7:51PM0.09m
7:24AM0.27m
1:24PM0.38m
8:18PM0.12m
7:30AM0.28m
2:59PM0.38m
8:40PM0.17m
8:51PM0.22m
clear
part cloud
clear
part cloud
part cloud
clear
cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
heavy rain
rain showers
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:18
6:16
6:16
6:15
6:13
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:10
6:12
6:12
6:13
6:14
6:14
6:15
 mm
2
25
1
2
2
Temp °C
13
14
13
15
17
14
12
14
13
16
16
15
17
17
17
17
17
18
20
22
20
Feels °C
11
12
12
13
13
12
9
11
11
11
11
11
15
15
14
14
14
16
21
24
22
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 16 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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