Surf Forecasts:
Bonete (Ilha Bela) surf forecast from 21 Aug 2026:
- Best quality surf: Monday 24 Aug, 12PM (local time) - 10ft (3.0m), 14s period, S swell with onshore winds.
- Most powerful swell: Tuesday 25 Aug, 12AM (local time) - 10ft (3.0m), 16s period, S swell with 4,282 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 12PM (local time) - 10ft (3.0m), 14s period with S swell.
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 (Aug 24) at 12PM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be onshore as the swell arrives.
The most powerful waves expected at Bonete (Ilha Bela) in the next 16 days are 3.0m 16s and forecast to arrive on Tuesday (Aug 25) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Aug 21) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 24th Aug) | 10ft (3.0m) 14s |
| Best Surf | 12PM (Mon 24th Aug) | 10ft (3.0m) 14s |
| Most Powerful | 12AM (Tue 25th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Bonete (Ilha Bela) over the next 16 days.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun night. Warm (max 25°C on Fri morning, min 18°C on Fri night). Winds decreasing (fresh winds from the SW on Fri morning, light winds from the S by Fri night). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Mon morning. Warm (max 21°C on Wed afternoon, min 17°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 7 | SSW 6 | SSW 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 13 | S 14 | S 14 | S 16 | S 14 | S 14 | S 13 | SSE 16 | S 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 130 | 242 | 249 | 935 | 851 | 656 | 557 | 689 | 1298 | 2471 | 3065 | 4282 | 2510 | 1979 | 1349 | 1041 | 1645 | 1339 | 1080 | 867 | 530 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | cross | cross | cross-on | cross-on | on | cross-on | cross | cross | cross | glassy | glassy | cross | cross | cross | cross | cross-off |
High Tide | 12:28PM0.74m | 6:49PM0.66m | 12:53PM0.84m | 00:10AM0.68m | 1:17PM0.93m | 00:43AM0.79m | 1:40PM1.01m | 1:08AM0.90m | 2:02PM1.07m | 1:31AM1.00m | 2:23PM1.11m | 1:55AM1.09m | 2:42PM1.14m | 2:20AM1.17m | |||||||
Low Tide | 4:34PM0.64m | 4:32AM0.39m | 6:11PM0.56m | 5:48AM0.30m | 6:48PM0.47m | 6:38AM0.19m | 7:18PM0.39m | 7:18AM0.09m | 7:47PM0.32m | 7:53AM0.01m | 8:15PM0.27m | 8:27AM-0.04m | 8:44PM0.23m | ||||||||
 | |  | | | |  | |  |  | |  | | | | | | |  | |  | |
 | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:18 | — | — | 6:16 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:47 | — |
mm | — | — | — | — | — | — | 1 | 1 | 9 | 4 | 1 | 2 | 2 | 3 | — | — | — | — | — | — | — |
Temp °C | 25 | 20 | 19 | 19 | 19 | 19 | 20 | 20 | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 21 | 21 | 23 | 22 | 23 |
Feels °C | 22 | 15 | 17 | 19 | 18 | 18 | 20 | 20 | 17 | 15 | 16 | 16 | 18 | 19 | 19 | 22 | 21 | 20 | 23 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 8 | SSW 7 | S 11 | S 10 | S 10 | S 10 | S 10 | S 13 | S 14 | S 14 | S 16 | S 14 | S 14 | S 13 | SSE 16 | S 14 | SSE 13 | SSE 14 | SSE 13 | SSE 13 |
| kJ | 130 | 113 | 249 | 935 | 851 | 656 | 557 | 689 | 1298 | 2471 | 3065 | 4282 | 2510 | 1979 | 1349 | 1041 | 1645 | 1339 | 1080 | 867 | 530 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 15 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | — | — | — | — | SSE 18 | S 12 | — | — | E 7 | — | — |
| kJ | 41 | 4 | 63 | 32 | 16 | 9 | 4 | 4 | 4 | 1 | — | — | — | — | 211 | 535 | — | — | 154 | — | — |
Swell 3 Height (m) Direction Period (s) | S 16 | — | S 13 | — | — | — | — | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | — | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 3 | SSW 6 | — | — | — | — | — | E 4 | ESE 4 | — | E 4 | E 4 | E 4 | E 5 | ENE 5 | E 5 | E 5 | E 6 | — | E 7 | E 7 |
| kJ | 4 | 242 | — | — | — | — | — | 7 | 19 | — | 14 | 12 | 21 | 42 | 64 | 47 | 37 | 99 | — | 153 | 340 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 35 | 455 | 10 | 10 | 41 | 22 | 3 | 26 | 41 | 41 | 41 | 26 | 22 | 3 | 0 | 0 | 41 | 16 | 3 | 22 | 16 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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