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Lopes Mendes (Ilha Grande) Surf Forecast
/ Rio de Janeiro (47 surf breaks) /
Surf Forecasts:
Lopes Mendes (Ilha Grande) surfForecast / Rio de Janeiro / Brazil
16 Day Weather and Surf, issued 2 pm Sunday 03 May 2026 -03Forecast update in hr min s Forecast update imminent
Lopes Mendes (Ilha Grande) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lopes Mendes (Ilha Grande) sea temperature is
24.7° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Lopes Mendes (Ilha Grande) this week:
The surf forecast for Lopes Mendes (Ilha Grande) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 03) at 9PM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Lopes Mendes (Ilha Grande) in the next 16 days are 2.5m 16s and forecast to arrive on Tuesday (May 05) at 3AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Monday (May 04) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 3rd May) | 8ft (2.5m) 11s |
| Best Surf | 3AM (Tue 5th May) | 8ft (2.5m) 16s |
| Most Powerful | 3AM (Tue 5th May) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Lopes Mendes (Ilha Grande) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sun afternoon. Warm (max 25°C on Tue morning, min 21°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 32°C on Fri afternoon, min 23°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sun 3 | Monday 4 | Tuesday 5 | Wednesday 6 | Thursday 7 | Friday 8 | Saturday 9 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
S 9 | S 12 | S 13 | S 13 | S 14 | S 16 | S 15 | S 14 | S 13 | S 13 | S 12 | S 11 | S 11 | S 11 | S 10 | SSW 10 | S 12 | S 12 | S 12 | S 12 | S 11 | |
773 | 1901 | 2278 | 1712 | 1553 | 2982 | 2051 | 1127 | 569 | 377 | 282 | 155 | 116 | 90 | 56 | 35 | 26 | 44 | 41 | 72 | 119 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | glassy | off | cross-off | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | off | cross-off | cross-on | cross-on | cross-on | on | |
High Tide | 3:25PM1.10m | 3:11AM1.00m | 3:59PM1.05m | 3:40AM0.97m | 4:35PM0.99m | 4:12AM0.93m | 5:16PM0.91m | 4:51AM0.88m | 6:10PM0.85m | 5:40AM0.83m | 7:47PM0.81m | 6:51AM0.78m | 10:52PM0.87m | 8:56AM0.78m | |||||||
Low Tide | 10:07PM0.36m | 10:03AM0.12m | 10:42PM0.42m | 10:40AM0.17m | 11:23PM0.48m | 11:29AM0.22m | 00:18AM0.53m | 12:32PM0.28m | 1:28AM0.56m | 1:46PM0.31m | 2:43AM0.56m | 3:01PM0.30m | 3:55AM0.52m | ||||||||
 |  |  | |  | | | | | | | |  | | | | | | |  | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 |
 | 5:29 | — | — | 5:28 | — | — | 5:28 | — | — | 5:27 | — | — | 5:27 | — | — | 5:25 | — | — | 5:24 | — | 5:24 |
1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 1 | |
Temp °C | 22 | 22 | 23 | 23 | 23 | 25 | 24 | 23 | 25 | 25 | 24 | 28 | 28 | 26 | 30 | 32 | 27 | 25 | 24 | 22 | 22 |
21 | 24 | 21 | 21 | 22 | 26 | 25 | 25 | 26 | 27 | 26 | 28 | 28 | 26 | 29 | 31 | 26 | 27 | 26 | 23 | 21 | |
Swell 1 Height (m) Direction Period (s) | S 9 | S 12 | S 13 | S 13 | S 14 | S 16 | S 15 | S 14 | S 13 | S 13 | S 12 | E 6 | S 11 | ESE 6 | E 7 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 |
 kJ | 773 | 1901 | 2278 | 1712 | 1553 | 2982 | 2051 | 1127 | 569 | 377 | 282 | 44 | 116 | 90 | 94 | 103 | 108 | 114 | 124 | 140 | 92 |
Swell 2 Height (m) Direction Period (s) | E 9 | ESE 9 | ESE 9 | — | S 17 | E 5 | ESE 9 | ESE 6 | ESE 6 | E 8 | E 5 | S 11 | — | S 11 | S 10 | SSW 10 | S 12 | S 12 | S 12 | S 12 | S 11 |
| kJ | 41 | 27 | 28 | — | 930 | 29 | 16 | 52 | 33 | 12 | 12 | 155 | — | 85 | 56 | 35 | 26 | 44 | 41 | 72 | 119 |
Swell 3 Height (m) Direction Period (s) | E 9 | — | — | — | ESE 9 | ESE 9 | — | E 9 | E 8 | — | E 8 | E 8 | — | — | S 13 | S 13 | S 10 | S 20 | S 14 | SW 4 | S 18 |
| kJ | 57 | — | — | — | 16 | 16 | — | 6 | 5 | — | 20 | 18 | — | — | 32 | 31 | 17 | 7 | 14 | 4 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 4 | E 5 | E 6 | E 5 | E 6 | — | E 5 | E 8 | E 6 | E 6 | NE 3 | NNE 4 | NNE 3 | NNE 3 | N 4 | WNW 3 | — | SSW 6 |
| kJ | — | — | — | 27 | 71 | 49 | 28 | 74 | — | 20 | 80 | 85 | 74 | 2 | 11 | 2 | 6 | 12 | 1 | — | 65 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 20 | 0 | 0 | 59 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 58 | 58 | 63 | 0 | 63 | 20 | 132 | 90 | 97 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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