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Prainha Surf Forecast
/ Rio de Janeiro (47 surf breaks) /
Prainha surfForecast / Rio de Janeiro / Brazil
12 Day Weather and Surf, issued 2 am Saturday 02 Aug 2025 -03
Best Forecast Surf Conditions for Prainha this week:
The surf forecast for Prainha over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 02) at 6AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 1.0m and 6s. Another secondary swell of 1.1m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Prainha in the next 12 days are 1.9m 16s and forecast to arrive on Thursday (Aug 07) at 12AM. 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 Saturday (Aug 09) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 2nd Aug) | 4.5ft (1.4m) 11s |
| Best Surf | 12AM (Thu 7th Aug) | 6ft (1.9m) 16s |
| Most Powerful | 12AM (Thu 7th Aug) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Prainha over the next 12 days.
Short Range Forecast Mostly dry. Warm (max 29°C on Mon afternoon, min 18°C on Sat morning). Wind will be generally light. | Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Thu afternoon. Warm (max 24°C on Thu morning, min 18°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | Thursday 07 | Friday 08 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 10 | 7 | 6 | 7 | 7 | 7 | 7 | 7 | 12 | 12 | 11 | 11 | 16 | 14 | 13 | 13 | 12 | 12 | 11 |
Wave (?)Graph  | |||||||||||||||||||||
| Energy (?) | 513 | 276 | 317 | 395 | 133 | 505 | 190 | 128 | 87 | 97 | 173 | 291 | 329 | 592 | 1779 | 1454 | 1029 | 790 | 618 | 699 | 537 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- on | cross- off | cross- off | cross | cross- off | cross- off | cross | off | cross- off | cross | glass | cross- off | cross | cross- off | cross- off | cross- on | glass | glass | on | glass |
High Tide / height (m) | 7:15PM 0.66 | 11:36AM 0.72 | 10:45PM 0.61 | 12:38PM 0.80 | 12:13AM 0.67 | 1:21PM 0.89 | 12:55AM 0.75 | 1:57PM 0.96 | 1:28AM 0.82 | 2:30PM 1.02 | 1:56AM 0.90 | 3:00PM 1.05 | 2:23AM 0.98 | ||||||||
Low Tide / height (m) | 2:54PM 0.48 | 3:21AM 0.35 | 4:28PM 0.50 | 4:43AM 0.30 | 5:53PM 0.46 | 5:52AM 0.23 | 6:50PM 0.40 | 6:47AM 0.14 | 7:33PM 0.34 | 7:34AM 0.05 | 8:11PM 0.30 | 8:16AM -0.03 | 8:46PM 0.27 | ||||||||
Saturday 02 | Sunday 03 | Monday 04 | Tuesday 05 | Wednesday 06 | Thursday 07 | Friday 08 | |||||||||||||||
| Sunrise | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - | 6:26 | - | - | 6:24 | - | - | 6:24 | - | - | 6:24 | - | - |
| Sunset | - | 5:31 | - | - | 5:32 | - | - | 5:32 | - | - | 5:34 | - | - | 5:34 | - | - | 5:34 | - | - | 5:35 | - |
 | |  | | | |  | |  | | |  | | | | |  | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | - | - | 7 | 2 | - | 1 | - |
| Temp. °C | 23 | 24 | 21 | 25 | 28 | 25 | 27 | 29 | 23 | 20 | 20 | 21 | 21 | 21 | 19 | 24 | 22 | 19 | 21 | 19 | 19 |
| Feels °C (?) | 22 | 21 | 20 | 25 | 26 | 24 | 25 | 27 | 23 | 20 | 19 | 22 | 21 | 21 | 21 | 25 | 21 | 20 | 22 | 20 | 21 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Rio de Janeiro
Cross-off wind 26 km from Prainha has become light (light winds from the NNW at Santa Cruz (Aero)). Waves should be turning clean at Prainha. 1.4m 11s groundswell from the SSE with a 1.4m 5s windswell from the E. 2 swells combining so expect closeout sets.
26 km away, 2 h 5 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 Prainha 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 Prainha Surf forecast
The above surf forecast table for Prainha provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Prainha can be found by selecting the local surf guide option on the grey menu. Our Prainha 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 (Prainha) 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 Prainha 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.
Prainha is 26 km (16 miles) from the very large city of Nilopolis. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Nilopolis. Nilopolis has rooms for a wide range of budgets as well as cheap car hire and transport links.
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