Surf Forecasts:
Atlantida surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 9PM (local time) - 6ft (1.9m), 8s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 3AM (local time) - 8ft (2.5m), 9s period, SSE swell with 1,070 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 9PM (local time) - 3.5ft (1.1m), 9s 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 Tuesday (Sep 08) at 9PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.6m and 5s. 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 2.5m 9s and forecast to arrive on Saturday (Sep 12) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Friday (Sep 11) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 8th Sep) | 3.5ft (1.1m) 9s |
| Best Surf | 9PM (Sat 12th Sep) | 6ft (1.9m) 8s |
| Most Powerful | 3AM (Sat 12th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Atlantida over the next 16 days.
The Lowdown
Alright folks, Rusty here. Gotta be straight with you, the next couple of weeks look pretty grim for Atlantida. This is one of those stretches where you might be better off waxing your longboard at home, because the ocean isn't giving us much to work with.
We do have a few windows where it might be worth a paddle, but it's nothing to write home about. The first real chance comes on Friday, September 11th. That morning, we’re looking at a 4ft swell from the east, but the wind is a light cross-offshore breeze, which will keep it clean. The energy is weak though, only scoring a 204 on the energy scale. The afternoon actually looks slightly better with a 4ft swell from the east-northeast and clean offshore wind from the west. That's the best you'll see all week, but it's still small.
Saturday, September 12th, the swell picks up to 7ft in the morning from the SSE. The wind is cross-offshore, so it'll be clean. The energy is building (752), but this is getting into the "too big for beginners" territory. The afternoon gets messy with a 7ft swell and a strong cross-shore wind that will chop it up.
The real standout, if you can call it that, is Sunday, September 13th. That morning, we have a 4ft swell from the southeast, with a light cross-offshore wind from the southwest. The energy is moderate (561), and the conditions are described as clean. This is the best session on offer, but don't expect perfection.
After that, it's a long stretch of poor conditions. Monday and Tuesday have some size but the winds are onshore and strong, making a mess of things. The break is inconsistent at the best of times, so a blank run like this is a bit more normal for the area.
Looking way out, there's a glimmer on Tuesday, September 22nd. The morning looks glassy, with a 5ft swell from the east-southeast and no wind. The energy is moderate (371), and it's clean. That's a long way off, so keep an eye on it, but it's promising.
To sum it up, if you're desperate, try Friday afternoon (Sept 11th) or Sunday morning (Sept 13th). Anything else will leave you frustrated.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu night. Very mild (max 18°C on Thu morning, min 13°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 50mm), heaviest during Fri afternoon. Very mild (max 18°C on Fri morning, min 12°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 10 | E 8 | E 8 | SSE 15 | SSE 13 | E 8 | E 8 | ENE 8 | S 8 | SSE 9 | SSE 9 | SSE 8 | SE 8 | SE 9 | ESE 7 | E 7 | E 6 | E 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 193 | 158 | 188 | 197 | 118 | 165 | 292 | 187 | 108 | 157 | 206 | 871 | 716 | 698 | 418 | 198 | 777 | 265 | 255 | 196 | 222 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross | on | cross | cross | cross-on | glassy | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | on | on | cross-on | cross-on | cross-on |
High Tide | 2:40PM0.62m | 9:16PM0.34m | 3:31PM0.56m | 10:39PM0.41m | 4:23PM0.48m | 11:32PM0.49m | 12:43PM0.37m | 00:18AM0.54m | 1:00PM0.41m | 6:14PM0.31m | 1:26PM0.44m | 7:14PM0.23m | 7:13AM0.25m | 1:54PM0.47m | 8:17PM0.18m | ||||||
Low Tide | 7:17PM0.31m | 6:49AM-0.05m | 7:34PM0.30m | 7:32AM-0.06m | 8:01PM0.27m | 8:12AM-0.04m | 2:45PM0.33m | 8:30PM0.24m | 8:51AM0.01m | 4:07PM0.26m | 9:00PM0.21m | 9:28AM0.08m | 5:08PM0.19m | 9:29PM0.18m | 5:52AM0.24m | 5:58PM0.13m | 9:59PM0.16m | ||||
 | |  |  | | |  | |  | | | | | | | |  | | |  |  | |
 | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — |
 | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:10 | — |
mm | — | — | — | — | — | — | 2 | 3 | 4 | 6 | 33 | 5 | — | — | — | — | 2 | 4 | 5 | 9 | 23 |
Temp °C | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 15 | 16 | 16 | 14 | 15 | 15 | 14 | 14 | 14 | 15 |
Feels °C | 14 | 14 | 14 | 17 | 17 | 17 | 18 | 19 | 20 | 18 | 19 | 9 | 13 | 13 | 12 | 13 | 12 | 9 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 9 | SSE 10 | E 8 | E 8 | E 8 | ENE 8 | E 8 | SSE 11 | E 8 | ENE 8 | SSE 9 | SSE 9 | SSE 8 | SE 8 | ENE 8 | S 9 | S 10 | S 10 | SSE 10 |
| kJ | 193 | 158 | 188 | 197 | 118 | 165 | 140 | 115 | 108 | 41 | 153 | 79 | 716 | 516 | 318 | 138 | 24 | 194 | 120 | 122 | 209 |
Swell 2 Height (m) Direction Period (s) | E 5 | E 5 | E 5 | E 7 | S 9 | SSE 12 | SSE 15 | SSE 13 | S 12 | S 5 | SSE 11 | E 12 | ENE 8 | ENE 8 | E 9 | S 9 | — | ENE 9 | SE 8 | SE 8 | SE 8 |
| kJ | 25 | 27 | 21 | 63 | 85 | 78 | 292 | 187 | 73 | 2 | 39 | 3 | 36 | 12 | 42 | 152 | — | 67 | 53 | 43 | 35 |
Swell 3 Height (m) Direction Period (s) | E 8 | S 15 | SE 10 | SE 9 | SSE 12 | S 9 | E 15 | E 14 | S 6 | E 13 | E 13 | — | — | — | S 13 | SSE 11 | — | — | — | — | — |
| kJ | 5 | 5 | 16 | 43 | 75 | 56 | 4 | 4 | 3 | 4 | 3 | — | — | — | 3 | 73 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 5 | — | — | — | — | — | — | — | — | E 8 | ENE 8 | S 8 | — | SSE 9 | SSE 8 | SE 8 | SE 9 | ESE 7 | E 7 | E 6 | E 7 |
| kJ | 38 | — | — | — | — | — | — | — | — | 157 | 206 | 871 | — | 698 | 418 | 198 | 777 | 265 | 255 | 196 | 222 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 208 | 0 | 32 | 208 | 39 | 53 | 18 | 0 | 0 | 0 | 292 | 225 | 306 | 0 | 0 | 180 | 208 | 574 | 574 | 208 |
Best forecast wave conditions in Rio Grande Do Sul | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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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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