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Lopes Mendes (Ilha Grande) Surf Forecast
/ Rio de Janeiro (47 surf breaks) /
Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil
12 Day Weather and Surf, issued 8 pm Tuesday 29 Apr 2025 -03
Best Forecast Surf Conditions for Lopes Mendes (Ilha Grande) this week:
The surf forecast for Lopes Mendes (Ilha Grande) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Apr 30) at 3AM. The primary swell is predicted to be 2.4m and 12s period with a secondary swell of 0.3m and 7s. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Lopes Mendes (Ilha Grande) in the next 12 days are 2.4m 12s and forecast to arrive on Wednesday (Apr 30) 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 1.8m 7s period and expected on Wednesday (May 07) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 30th Apr) | 8ft (2.4m) 12s |
| Best Surf | 12PM (Fri 2nd May) | 6ft (1.8m) 13s |
| Most Powerful | 3AM (Wed 30th Apr) | 8ft (2.4m) 12s |
Table - best surf conditions forecast for Lopes Mendes (Ilha Grande) over the next 12 days.
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sun 11 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 11 | 11 | 11 | 12 | 11 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 7 | 11 | 11 | 10 | 10 | 9 | 9 | 5 | 18 | 8 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 1693 | 1229 | 943 | 778 | 514 | 946 | 739 | 427 | 1104 | 797 | 661 | 569 | 456 | 462 | 390 | 370 | 325 | 254 | 210 | 173 | 164 | 126 | 148 | 158 | 181 | 107 | 79 | 42 | 25 | 17 | 16 | 26 | 26 | 358 | 1317 | 1190 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | on | cross- on | cross- on | glass | cross- on | off | off | cross- off | off | off | cross- off | glass | cross- on | cross- on | cross- off | off | cross- off | off | glass | cross | glass | cross- off | cross- off | glass | glass | cross- off | off | cross- off | cross- on | cross- on | on | cross- on | off | off | cross- on |
High Tide / height (m) | 3:16AM 0.96 | 4:16PM 1.06 | 3:44AM 0.93 | 4:59PM 0.94 | 4:17AM 0.90 | 5:50PM 0.82 | 10:22PM 0.77 | 4:57AM 0.85 | 7:17PM 11:23PM 0.73 0.81 | 5:52AM 0.79 | 11:58PM 0.84 | 7:32AM 0.74 | 12:16AM 0.87 | 10:47AM 0.79 | 12:25AM 0.91 | 11:40AM 0.89 | 12:35AM 0.95 | 12:18PM 0.97 | 12:51AM 0.98 | 12:53PM 1.04 | 1:12AM 1.01 | 1:26PM 1.09 | 1:34AM 1.02 | 1:58PM 1.12 | ||||||||||||
Low Tide / height (m) | 10:48PM 0.38 | 10:38AM 0.09 | 11:34PM 0.51 | 11:25AM 0.15 | 12:27AM 0.62 | 12:24PM 0.22 | 8:32PM 1:31AM 0.75 0.68 | 1:39PM 0.29 | 7:55PM 2:49AM 0.73 0.69 | 3:01PM 0.32 | 4:07AM 0.64 | 4:17PM 0.30 | 5:08AM 0.55 | 5:19PM 0.27 | 5:54AM 0.46 | 6:08PM 0.24 | 6:32AM 0.36 | 6:49PM 0.21 | 7:05AM 0.28 | 7:26PM 0.20 | 7:36AM 0.21 | 8:00PM 0.21 | 8:05AM 0.15 | |||||||||||||
Wednesday 30 | Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sun 11 | |||||||||||||||||||||||||
| Sunrise | - | 6:15 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:16 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:18 | - | - | 6:20 | - | - | 6:20 | - |
| Sunset | - | - | 5:30 | - | - | 5:30 | - | - | 5:30 | - | - | 5:29 | - | - | 5:28 | - | - | 5:28 | - | - | 5:27 | - | - | 5:27 | - | - | 5:25 | - | - | 5:24 | - | - | 5:24 | - | - | 5:23 |
 |  |  |  |  | | | | |  | | | | | | | | | | | | | | | | | | | | |  | | | | | | |
Rain (mm) | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - |
| Temp. °C | 22 | 22 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 22 | 23 | 23 | 22 | 23 | 23 | 23 | 24 | 24 | 23 | 25 | 25 | 24 | 25 | 26 | 25 | 31 | 31 | 24 | 23 | 24 | 23 | 26 | 27 |
| Feels °C (?) | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 22 | 21 | 20 | 22 | 23 | 23 | 25 | 25 | 24 | 24 | 23 | 24 | 26 | 25 | 25 | 25 | 25 | 26 | 28 | 28 | 27 | 33 | 33 | 23 | 26 | 27 | 26 | 29 | 30 |
Short Range Forecast: Light rain (total 2mm), mostly falling on Tue night. Warm (max 23°C on Wed afternoon, min 20°C on Thu night). Wind will be generally light. | Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sat afternoon, min 20°C on Fri night). Wind will be generally light. | Days 6-9 Weather Summary Mostly dry. Warm (max 26°C on Thu afternoon, min 22°C on Mon night). Wind will be generally light. | Long Range Forecast: Light rain (total 4mm), mostly falling on Sun night. Warm (max 31°C on Fri morning, min 23°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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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 Lopes Mendes (Ilha Grande) 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 Lopes Mendes (Ilha Grande) Surf forecast
The above surf forecast table for Lopes Mendes (Ilha Grande) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Lopes Mendes (Ilha Grande) can be found by selecting the local surf guide option on the grey menu. Our Lopes Mendes (Ilha Grande) 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 (Lopes Mendes (Ilha Grande)) 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 Lopes Mendes (Ilha Grande) 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.
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