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Surf Forecasts:
Bonete (Ilha Bela) surfForecast / São Paulo / Brazil
16 Day Weather and Surf, issued 2 pm Sunday 17 May 2026 -03Forecast update in hr min s Forecast update imminent
Bonete (Ilha Bela) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bonete (Ilha Bela) sea temperature is
23.6° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Bonete (Ilha Bela) this week:
The surf forecast for Bonete (Ilha Bela) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 3AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bonete (Ilha Bela) in the next 16 days are 3.0m 14s and forecast to arrive on Friday (May 22) at 12AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (May 18) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 18th May) | 3ft (0.9m) 10s |
| Best Surf | 3PM (Thu 21st May) | 10ft (3.0m) 16s |
| Most Powerful | 12AM (Fri 22nd May) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Bonete (Ilha Bela) over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun night. Warm (max 23°C on Sun afternoon, min 20°C on Tue morning). Mainly fresh winds. | Days 5-7 Weather SummaryHeavy rain (total 43mm), heaviest during Sat morning. Warm (max 21°C on Wed afternoon, min 18°C on Thu night). Winds increasing (calm on Wed night, strong winds from the SE by Sat morning). | ||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||
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 11 | S 10 | S 10 | S 10 | S 14 | SSW 8 | S 8 | S 16 | S 14 | S 14 | S 13 | S 15 | S 16 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 12 | |
323 | 212 | 123 | 90 | 106 | 509 | 489 | 2475 | 2379 | 1671 | 1074 | 1860 | 3736 | 3978 | 3376 | 2927 | 2487 | 1603 | 1370 | 1060 | 738 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-off | off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | glassy | on | cross-on | cross-on | cross-on | cross | off | on | cross-on | cross | cross | |
High Tide | 3:13PM1.16m | 2:48AM0.91m | 3:56PM1.10m | 3:17AM0.90m | 4:41PM1.00m | 3:49AM0.89m | 5:29PM0.90m | 4:26AM0.88m | 6:29PM0.80m | 5:13AM0.85m | 10:55PM0.77m | 6:16AM0.81m | 11:25PM0.78m | 7:53AM0.78m | |||||||
Low Tide | 10:01PM0.35m | 9:45AM0.06m | 10:47PM0.47m | 10:29AM0.09m | 11:35PM0.57m | 11:22AM0.14m | 00:27AM0.64m | 12:26PM0.21m | 1:28AM0.68m | 1:41PM0.27m | 2:35AM0.67m | 2:55PM0.31m | 3:41AM0.61m | ||||||||
 |  | |  |  |  | |  |  | | | | | | | | |  | | | | |
 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:31 |
 | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:23 | — | — | 5:23 | — | — | 5:23 | — | — | 5:22 | — | 5:22 |
1 | 11 | 1 | 2 | 5 | — | 2 | 4 | 2 | 1 | 3 | 2 | 2 | 3 | 2 | 3 | 14 | 13 | 3 | 5 | 1 | |
Temp °C | 23 | 22 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 20 | 20 | 19 | 19 | 20 | 20 |
24 | 23 | 26 | 22 | 21 | 19 | 20 | 22 | 23 | 23 | 21 | 18 | 18 | 18 | 18 | 19 | 20 | 14 | 17 | 19 | 20 | |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | S 10 | S 10 | SSW 8 | S 8 | S 16 | S 14 | S 14 | S 13 | S 15 | S 16 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 12 |
 kJ | 323 | 212 | 123 | 90 | 67 | 509 | 489 | 2475 | 2379 | 1671 | 1074 | 1860 | 3736 | 3978 | 3376 | 2927 | 2487 | 1603 | 1370 | 1060 | 738 |
Swell 2 Height (m) Direction Period (s) | E 7 | SE 5 | NE 4 | SSE 16 | S 14 | S 13 | SSE 20 | S 8 | SE 7 | ESE 7 | ESE 6 | E 6 | E 8 | E 8 | E 8 | E 8 | E 9 | — | — | — | — |
| kJ | 4 | 1 | 4 | 48 | 106 | 84 | 395 | 206 | 91 | 70 | 30 | 18 | 5 | 5 | 5 | 6 | 14 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 12 | E 7 | S 16 | ENE 4 | ENE 5 | SSE 16 | S 15 | SE 7 | — | — | E 8 | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 1 | 21 | 2 | 2 | 50 | 157 | 143 | — | — | 5 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | — | SW 3 | SW 6 | — | — | — | — | — | — | ESE 6 | — | — | — | — | — | SE 6 | ESE 7 | E 7 | E 6 |
| kJ | — | 3 | — | 5 | 72 | — | — | — | — | — | — | 23 | — | — | — | — | — | 349 | 371 | 345 | 128 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 26 | 0 | 10 | 10 | 10 | 10 | 0 | 0 | 10 | 0 | 62 | 10 | 34 | 22 | 26 | 0 | 58 | 26 | 22 | 22 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||||
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 Bonete (Ilha Bela) 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 Bonete (Ilha Bela) Surf forecast
The above surf forecast table for Bonete (Ilha Bela) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bonete (Ilha Bela) can be found by selecting the local surf guide option on the grey menu. Our Bonete (Ilha Bela) 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 (Bonete (Ilha Bela)) 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 Bonete (Ilha Bela) 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.
Bonete (Ilha Bela) is 16 km (10 miles) from the city of Ilhabela. If you plan a holiday in São Paulo, look for hotels and other accommodation in Ilhabela. Ilhabela has rooms for a wide range of budgets as well as car hire and transport links.
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