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Itaipu surfForecast / Rio de Janeiro / Brazil
12 Day Weather and Surf, issued 8 pm Friday 18 Jul 2025 -03
Best Forecast Surf Conditions for Itaipu this week:
The surf forecast for Itaipu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jul 20) at 3AM. The primary swell is predicted to be 1.2m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Itaipu in the next 12 days are 1.6m 10s and forecast to arrive on Friday (Jul 25) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Friday (Jul 25) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 20th Jul) | 4ft (1.2m) 8s |
| Best Surf | 3AM (Fri 25th Jul) | 4.5ft (1.4m) 6s |
| Most Powerful | 3PM (Fri 25th Jul) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Itaipu over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 21°C on Mon morning, min 16°C on Sat night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue afternoon, min 18°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 15 | 14 | 12 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 69 | 241 | 400 | 147 | 165 | 167 | 133 | 93 | 90 | 42 | 148 | 164 | 152 | 118 | 142 | 141 | 118 | 112 | 175 | 255 | 471 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross- on | on | cross- on | cross- off | cross- on | cross- off | cross- off | cross- off | off | glass | cross | glass | glass | cross- on | cross- on | cross- on | on | cross- off | cross- on | cross | |
High Tide / height (m) | 9:54PM 0.91 | 10:24AM 1.04 | 9:52PM 0.91 | 11:13AM 1.04 | 9:56PM 0.92 | 12:00PM 1.03 | 10:20PM 0.95 | 12:49PM 0.99 | 10:52PM 0.98 | 1:43PM 0.94 | 11:30PM 1.00 | 2:45PM 0.88 | 12:13AM 1.00 | 3:52PM 0.83 | ||||||||
Low Tide / height (m) | 3:30AM -0.00 | 4:01PM 0.07 | 4:16AM -0.08 | 4:46PM 0.11 | 5:00AM -0.14 | 5:30PM 0.16 | 5:45AM -0.17 | 6:12PM 0.22 | 6:31AM -0.17 | 6:55PM 0.27 | 7:19AM -0.14 | 7:40PM 0.31 | 8:09AM -0.09 | |||||||||
Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Fri 25 | ||||||||||||||||
| Sunrise | - | 6:31 | - | - | 6:31 | - | - | 6:31 | - | - | 6:30 | - | - | 6:30 | - | - | 6:30 | - | - | 6:28 | - | |
| Sunset | - | - | 5:24 | - | - | 5:24 | - | - | 5:25 | - | - | 5:25 | - | - | 5:25 | - | - | 5:27 | - | - | 5:27 | |
 |  | |  | | | | |  | | | | | | | | |  | | |  | ||
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | |
| Temp. °C | 19 | 19 | 19 | 19 | 20 | 19 | 19 | 21 | 21 | 19 | 21 | 22 | 21 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 20 | |
| Feels °C (?) | 17 | 17 | 16 | 19 | 20 | 18 | 20 | 21 | 20 | 18 | 21 | 22 | 22 | 22 | 21 | 22 | 21 | 21 | 24 | 21 | 19 | |
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Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Rio de Janeiro
The wind is still cross-on at Itaipu (light winds from the SSW at Castelo wx 15 km from Itaipu). 1.2m 6s windswell from the SW with a 0.3m 10s swell from the S. Swells combining to make to make bigger set waves.
Actual: 31 min ago
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 Itaipu 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.
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 12 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.
Are you planning a holiday in Rio de Janeiro? If you are looking for accommodation near Itaipu, camping, hotels and holiday cottages in Rio de Janeiro, consider staying in Niteroi which is 11 km (7 miles) away. Other places in and around Rio de Janeiro where you can find information about places to rent, and car hire include Sao Goncalo which is 18 km (11 miles) away, Marica, Rio de Janeiro and Itaborai.
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