Itaipu Surf Break

Lat Long: 24.02° S 46.39° W

Itaipu Surf Forecast and Surf Report

Issued: 2 pm 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Itaipu sea temperature is
20.4° C
0.9° 

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


Itaipu surf forecast from 4 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 6PM (local time) - 4ft (1.2m), 13s period, SSE swell with glassy winds.
  • Most powerful swell: Tuesday 11 Aug, 3AM (local time) - 6ft (1.9m), 12s period, SSE swell with 1,002 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 6PM (local time) - 1.5ft (0.5m), 12s period with S swell.

Best Forecast Surf Conditions for Itaipu this week:

The surf forecast for Itaipu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 04) at 6PM. The primary swell is predicted to be 0.5m and 12s period with a secondary swell of 0.5m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Itaipu in the next 16 days are 1.9m 12s and forecast to arrive on Tuesday (Aug 11) at 3AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Aug 07) at 3AM.

Wave TypeTime (-03) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 4th Aug)1.5ft (0.5m) 12s
Best Surf 6PM (Sat 8th Aug)4ft (1.2m) 13s
Most Powerful 3AM (Tue 11th Aug)6ft (1.9m) 12s

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


The Lowdown

Alright, surfers, Rusty here. Let’s be straight with you: the next couple of weeks are looking pretty average for Itaipu. There’s surf on the charts, but it’s mostly going to be a case of small, jumbled, and wind-affected waves. We’ve got a long stretch of nothing worth getting excited about, but a couple of windows do open up if you’re patient.

The water is sitting at 69°, which is right around the normal mark for this time of year, so no surprises there.

The week starts off flat and messy. Tuesday morning you might see a tiny 1ft S swell, but with the weak energy (64) and poor conditions, it’s not worth paddling out for. The next few days are more of the same: small, short-period leftovers and onshore breezes messing things up. We’re looking at a real dry spell from Tuesday through to Friday of the first week, with nothing but minuscule, weak surf. Don’t bother getting your hopes up.

Finally, on Saturday the 8th, things start to stir a little. The morning brings a cleaner 3ft S swell (357 energy) with glassy conditions, and it’s surfable but nothing special. The afternoon, though, sees a jump in size to 5ft from the SSE, and the energy climbs to 1210, but the wind turns onshore and it gets messy. It’s a tease, really.

Sunday the 9th keeps that 3ft S swell with a clean morning, but it’s still pretty ordinary. Then we slip back into another run of poor surf, with onshore winds and lumpy conditions from Monday the 10th through to Wednesday the 12th. This is a rough patch, folks. The swell stays small, the wind is messy, and the wave quality is poor. Not a good look.

Thursday the 13th is a bit all over the place, with a short-period ESE swell in the morning that’s not going to offer anything clean.

Now, here’s the standout. Friday the 14th. The morning is where it’s at. We’ve got a 5ft SSE groundswell, with a period of 14 seconds, and the energy is strong at 1006. The wind is glassy, and the report says to expect very good surf conditions. This is the one to circle on the calendar. It’s not huge, but it’s clean, has some push, and will be the best wave quality we’ve seen in this whole window. It’s a long-period swell, so keep in mind that Itaipu, being a sheltered spot, might see it a bit more lined up than a beach break. Make the most of the morning, because the afternoon gets windier and more onshore.

After that high point, the weekend and the start of the next week fade back into the ordinary. Saturday the 15th and Sunday the 16th have small, weak swells with cross-shore winds. The following week, from the 17th to the 18th, looks pretty poor – small, short-period, and choppy. Not worth the effort.

Hang on, one more glimmer. On Wednesday the 19th, there’s a bigger SSW swell pushing in, 6ft in the morning with glassy conditions. The energy is solid at 666, and the report says to expect good surf. This is a bigger, more powerful swell, but the period is a bit shorter at 10 seconds, so it might not be as clean as the 14th. Still, it’s the biggest surf of the period and could be a fun one for the more experienced crew. The afternoon sees it jump to 7ft, but the wind turns cross-onshore, so it’ll get lumpy.

So, bottom line: the next 16 days are mostly a waiting game. The standout is definitely Friday morning the 14th – clean, glassy, and with a decent groundswell. The 19th is the other one to watch, but it’s a bit less certain. Everything else is pretty much a write-off. Get out there on the 14th and make it count.

Rusty

Short Range Forecast

Mostly dry. Warm (max 31°C on Thu morning, min 22°C on Tue afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Fri night. Warm (max 27°C on Sat night, min 19°C on Fri night). Wind will be generally light.

Tue
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
0
0
0
0
0
0
0
0
1
1
2
0
0
0
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)
0.4
SSE
12
0.6
S
12
0.6
S
11
0.6
S
11
0.5
S
10
0.4
SSE
10
0.5
ESE
8
0.6
E
8
0.4
ESE
7
0.4
ESE
8
0.4
ESE
7
1.1
S
12
1.2
SSE
14
1
SSE
12
1.1
S
13
1
S
12
1.4
S
7
1.3
SSE
11
1.3
SSE
11
1.1
S
13
Wave Graph
Metric surfscale
Energy kJ
50
104
91
86
53
33
35
42
18
19
18
368
571
313
427
319
195
394
401
386
Wind (km/h)
5
SSE
5
NNE
0
NW
10
SSW
5
NE
10
NNE
5
SW
5
NW
20
SW
10
S
5
NNW
5
ESE
10
S
5
N
10
SW
10
SSW
15
S
10
S
15
S
15
S
Wind State
on
cross-off
glassy
cross-on
cross-off
cross-off
glassy
glassy
cross-on
cross-on
off
glassy
on
glassy
cross-on
cross-on
cross-on
on
cross-on
on
High Tide
6:10PM0.99m
6:31AM1.03m
6:54PM0.87m
7:40AM0.92m
7:53PM0.75m
12:34PM0.88m
9:47PM0.69m
1:21PM1.03m
00:34AM0.76m
1:54PM1.14m
1:04AM0.87m
2:22PM1.21m
1:32AM0.99m
Low Tide
00:44AM0.45m
2:10PM0.48m
2:30AM0.48m
4:04PM0.55m
4:16AM0.45m
5:46PM0.53m
5:40AM0.34m
6:57PM0.46m
6:42AM0.20m
7:45PM0.41m
7:32AM0.07m
8:23PM0.38m
cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
clear
clear
part cloud
cloud
light rain
mod rain
light rain
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:37
6:37
6:37
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:44
5:44
5:45
5:45
5:45
5:45
 mm
5
1
6
3
4
8
Temp °C
23
24
26
23
25
31
30
27
25
23
20
24
24
27
21
20
19
19
19
19
Feels °C
23
23
25
23
24
31
30
27
23
23
23
25
26
28
23
22
20
20
19
20
  • 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 Itaipu Surf forecast

The above surf forecast table for Itaipu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Itaipu can be found by selecting the local surf guide option on the grey menu. Our Itaipu 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 (Itaipu) 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 Itaipu 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.

Itaipu is 2 km (1 miles) from the city of Praia Grande. If you plan a holiday in São Paulo, look for hotels and other accommodation in Praia Grande. Praia Grande has rooms for a wide range of budgets as well as car hire and transport links.

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