Surf Forecasts:
Ilha surf forecast from 20 Oct 2026:
- Best quality surf: Tuesday 27 Oct, 6AM (local time) - 6ft (1.9m), 12s period, S swell with glassy winds.
- Most powerful swell: Tuesday 27 Oct, 6AM (local time) - 6ft (1.9m), 12s period, S swell with 1,062 kJ wave energy.
- Next surfable swell (1★+): Wednesday 21 Oct, 3AM (local time) - 3ft (0.9m), 10s period with SSE swell.
Best Forecast Surf Conditions for Ilha this week:
The surf forecast for Ilha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 21) at 3AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.2m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ilha in the next 16 days are 1.9m 12s and forecast to arrive on Tuesday (Oct 27) at 6AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Monday (Oct 26) at 12AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Wed 21st Oct) | 3ft (0.9m) 10s |
| Best Surf | 6AM (Tue 27th Oct) | 6ft (1.9m) 12s |
| Most Powerful | 6AM (Tue 27th Oct) | 6ft (1.9m) 12s |
Table - best surf conditions forecast for Ilha over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed afternoon. Warm (max 22°C on Thu morning, min 19°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 36mm), heaviest during Sat night. Warm (max 26°C on Sat morning, min 22°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | |||||||||||||||
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) | S 10 | S 10 | SSE 10 | SSE 10 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 12 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SSE 8 | SSE 8 | SSE 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 265 | 225 | 176 | 202 | 170 | 155 | 123 | 121 | 174 | 154 | 103 | 65 | 64 | 59 | 40 | 20 | 18 | 16 | 43 | 98 | 142 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross | glassy | cross-on | cross | cross | cross-on | cross | cross | cross-on | off | off | cross-on | glassy | cross-on | glassy | off | off | cross-on | cross-on |
High Tide | 12:22PM0.97m | 11:33PM0.89m | 12:38PM1.06m | 00:06AM1.02m | 12:56PM1.13m | 00:37AM1.14m | 1:17PM1.18m | 1:10AM1.24m | 1:39PM1.20m | 1:43AM1.31m | 2:04PM1.19m | 2:19AM1.35m | 2:30PM1.15m | 2:56AM1.34m | |||||||
Low Tide | 5:32PM0.49m | 5:40AM0.21m | 6:12PM0.38m | 6:24AM0.11m | 6:49PM0.28m | 7:05AM0.04m | 7:24PM0.20m | 7:44AM0.01m | 7:57PM0.14m | 8:23AM0.04m | 8:29PM0.10m | 9:03AM0.11m | 9:00PM0.09m | ||||||||
 |  |  |  |  |  | | | | |  | | |  |  | | |  | | | | |
 | 5:26 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — |
mm | — | — | — | — | 1 | 3 | 1 | — | 1 | — | 1 | — | 4 | 14 | 14 | 2 | 1 | — | — | — | 2 |
Temp °C | 20 | 20 | 20 | 20 | 21 | 21 | 22 | 21 | 22 | 23 | 23 | 25 | 26 | 24 | 23 | 24 | 24 | 22 | 26 | 25 | 21 |
Feels °C | 19 | 19 | 18 | 21 | 20 | 19 | 21 | 19 | 22 | 24 | 25 | 26 | 27 | 27 | 26 | 27 | 27 | 21 | 27 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | SSE 10 | SSE 10 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 12 | ESE 6 | SSE 11 | SSE 10 | SSE 10 | SSE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SSE 8 | SSE 8 | SSE 7 |
| kJ | 265 | 225 | 176 | 202 | 170 | 155 | 123 | 121 | 174 | 44 | 103 | 65 | 64 | 59 | 40 | 20 | 18 | 16 | 43 | 98 | 125 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | SE 8 | ESE 10 | ESE 9 | S 18 | — | — | S 15 | — | SSE 11 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | SE 7 | ESE 7 | ESE 7 | S 12 | S 12 | SSE 16 |
| kJ | 7 | 3 | 10 | 8 | 6 | — | — | 4 | — | 154 | 34 | 23 | 7 | 19 | 9 | 13 | 10 | 4 | 12 | 10 | 142 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 10 | — | S 18 | — | — | — | — | — | — | — | S 16 | ESE 8 | ESE 8 | S 14 | S 16 | S 15 | S 13 | — | S 17 | S 11 |
| kJ | 5 | 4 | — | 6 | — | — | — | — | — | — | — | 5 | 6 | 11 | 4 | 5 | 4 | 14 | — | 6 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | ESE 4 | ESE 4 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | — | — | — | — | — | — | — | — | ENE 2 | — | — | — |
| kJ | — | — | — | 15 | 21 | 58 | 60 | 80 | 82 | — | — | — | — | — | — | — | — | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 8 | 2 | 2 | 57 | 42 | 8 | 57 | 2 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 21 | 31 | 53 | 21 |
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 Ilha 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 Ilha Surf forecast
The above surf forecast table for Ilha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ilha can be found by selecting the local surf guide option on the grey menu. Our Ilha 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 (Ilha) 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 Ilha 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.
Are you planning a holiday in São Paulo? If you are looking for accommodation near Ilha, camping, hotels and holiday cottages in São Paulo, consider staying in Praia Grande which is 19 km (12 miles) away. Other places in and around São Paulo where you can find information about places to rent, and car hire include Bertioga which is 19 km (12 miles) away, Guaruja, Cubatao and Santos.
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