Atlantida Surf Break

Lat Long: 29.81° S 50.05° W

Atlantida Surf Forecast and Surf Report

Issued: 8 pm 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Atlantida sea temperature is
15.0° C
2.0° 

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


Atlantida surf forecast from 19 Jul 2026:

  • Best quality surf: Sunday 19 Jul, 12AM (local time) - 5ft (1.5m), 9s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 22 Jul, 6PM (local time) - 5.5ft (1.7m), 8s period, SSE swell with 402 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 12AM (local time) - 5ft (1.5m), 9s period with ENE 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 Sunday (Jul 19) at 12AM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.2m and 14s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Atlantida in the next 16 days are 1.7m 8s and forecast to arrive on Wednesday (Jul 22) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 9s period and expected on Sunday (Jul 19) at 6AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 19th Jul)5ft (1.5m) 9s
Best Surf12AM (Sun 19th Jul)5ft (1.5m) 9s
Most Powerful 6PM (Wed 22nd Jul)5.5ft (1.7m) 8s

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


The Lowdown

Alright, let’s see what’s cooking for Atlantida over the next couple of weeks. It’s a slow start, but there’s a real good one building in the back half.

The first few days are a bit of a waiting game. Sunday the 19th has a clean 5ft swell from the ENE with a light cross-offshore breeze, and the combined energy is moderate (393). The waves are short-period (9 seconds), so they’ll be a bit soft and crumbly, not a lot of punch. The afternoon gets a bit choppy with a cross-shore wind.

Monday and Tuesday are pretty meh. The swell drops a bit, and the wind is mostly onshore or cross-onshore, keeping the surface bumpy. The water temp is about normal for this time of year.

The first real highlight is Tuesday morning, July 21st. It’s glassy, dead calm, with a 4ft ENE swell. The energy is still there (283), and with zero wind, it’ll be smooth as butter. For a beach/pier spot like Atlantida, that’s a dream for a long, clean session on a longboard. The short period means it’ll be a bit fat, but it’ll be fun.

We hit a flat spell from Wednesday onward. The swell drops to under 3 feet by the weekend, and the winds are mostly onshore. The combined energy dips into the weak range. There’s a small window on Saturday morning, July 26th with a 3ft swell and clean cross-offshore wind, but it’s short-period (7 seconds). It’s surfable, but nothing to get stoked about.

Then the second week brings a big change. The swell comes up, and the period gets long. The absolute standout is Saturday, August 1st. The morning is dead flat calm, glassy, with a 5ft SSE swell. The period is 13 seconds – that’s a proper groundswell. The combined energy is a strong 927. This is going to be clean, powerful, and well-shaped. The afternoon sees the period climb to 14 seconds and the energy jumps to 1308, but a light cross-onshore wind will put a slight ripple on the face. The morning is the clear winner.

The next morning, Sunday, August 2nd, is still solid with a 5ft, 14-second swell, but a cross-shore wind will add a little chop. The energy is still very strong (1069). The afternoon gets ruined by a strong onshore wind.

So, the call is: don’t bother with the first week unless you’re really jonesing for a glassy, small wave. The big one to circle is Saturday morning, August 1st. Glassy, solid groundswell, and that long period will give you some proper, lined-up waves. That’s the one.

Rusty.

Short Range Forecast

Heavy rain (total 48mm), heaviest during Tue afternoon. Warm (max 28°C on Sun afternoon, min 18°C on Mon afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 45mm), heaviest during Tue night. Very mild (max 18°C on Fri afternoon, min 15°C on Tue night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
2
1
1
1
2
1
1
2
1
2
1
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
ENE
9
1.6
ENE
9
1.4
ENE
9
1.3
ENE
8
1.4
ENE
9
1.3
ENE
9
1.2
ENE
8
1.2
ENE
9
1.1
ENE
8
0.9
ENE
8
0.9
SSE
8
1.4
SSE
8
1.7
SSE
8
1.6
SE
8
1.8
SE
8
1.3
SE
8
1.2
SE
8
1.3
ESE
8
1.7
E
8
Wave Graph
Metric surfscale
Energy kJ
343
381
311
228
295
237
194
203
164
99
107
244
356
322
373
205
160
203
363
Wind (km/h)
15
NNW
15
N
10
NNE
10
WNW
5
NE
10
NE
10
NNE
0
WNW
10
NNE
10
SW
10
WSW
15
SSW
10
WSW
5
SSE
10
SSE
10
NE
15
NE
25
NE
20
NNE
Wind State
cross-off
cross-off
cross
off
cross-on
cross-on
cross
glassy
cross
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross
cross
cross-on
cross
High Tide
9:09PM0.39m
8:54AM0.19m
3:28PM0.40m
9:58PM0.33m
3:30AM0.53m
4:03PM0.41m
10:42PM0.29m
4:17AM0.47m
4:37PM0.41m
11:22PM0.26m
5:08AM0.40m
5:11PM0.39m
11:55PM0.24m
6:12AM0.33m
12:32PM0.38m
00:18AM0.23m
1:10PM0.43m
00:11AM0.24m
Low Tide
11:16PM0.33m
7:05AM0.16m
6:46PM0.19m
7:40AM0.18m
12:19PM0.17m
7:39PM0.18m
8:12AM0.21m
1:04PM0.24m
8:30PM0.18m
8:39AM0.24m
2:01PM0.30m
9:19PM0.19m
8:52AM0.28m
3:28PM0.33m
10:10PM0.21m
3:32AM0.18m
11:29PM0.24m
clear
clear
clear
mod rain
rain showers
rain showers
mod rain
heavy rain
heavy rain
heavy rain
light rain
light rain
light rain
rain showers
light rain
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:11
7:11
7:11
7:11
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:39
5:40
5:42
5:42
5:43
 mm
6
3
2
6
15
16
34
2
4
2
2
1
Temp °C
25
27
28
22
19
20
18
18
18
16
16
16
16
16
16
16
17
18
16
Feels °C
25
25
27
22
20
21
18
20
19
16
16
15
15
16
15
15
14
14
13
  • 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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