Surf Forecasts:
Ilha surf forecast from 9 Jul 2026:
- Best quality surf: Thursday 9 Jul, 3AM (local time) - 2.5ft (0.8m), 9s period, S swell with glassy winds.
- Most powerful swell: Saturday 11 Jul, 12PM (local time) - 3ft (0.9m), 13s period, SE swell with 286 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 3AM (local time) - 2.5ft (0.8m), 9s period with S 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 Thursday (Jul 09) at 3AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.6m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ilha in the next 16 days are 0.9m 13s and forecast to arrive on Saturday (Jul 11) at 12PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 9th Jul) | 2.5ft (0.8m) 9s |
| Best Surf | 3AM (Thu 9th Jul) | 2.5ft (0.8m) 9s |
| Most Powerful | 12PM (Sat 11th Jul) | 3ft (0.9m) 13s |
Table - best surf conditions forecast for Ilha over the next 16 days.
Alright folks, Rusty here. We’ve got a single spot on the radar for this stretch, and it’s a bit of a mixed bag. The overall pattern shows a few windows of clean, rideable waves, but there are also some long flat spells to work around.
The first good news comes on Thursday morning, July 9th. We’re looking at a glassy 2ft S swell, with a period of 11 seconds, giving us a moderate 186 combined energy. The water temp is about average for this time of year. It’s surfable, but nothing to write home about. The real standout window opens up Saturday morning, July 11th. The swell picks up to 3ft from the SE, period bumps to 13 seconds, and the energy jumps to 255. The wind is a light cross-offshore from the N, which will keep the surface clean. That’s the best quality we’ll see all week – a proper little window of fun.
Sunday, July 12th, keeps the run going with a clean morning: 2ft SE swell, 12-second period, and a light cross-offshore. The afternoon goes glassy, which is a bonus. Monday morning, July 13th, gets a little messy with a cross-shore wind and rain showers, but the swell is still there at 2ft. After that, the wind turns onshore and the quality drops right off. We hit a dry spell from Tuesday through to Wednesday, July 15th, where the conditions are just poor.
We get a brief reprieve on Thursday afternoon, July 16th. The wind goes glassy, and we get a clean 3ft SE swell with a 10-second period and 207 energy. That’s another decent session. The next morning, Friday, July 17th, is clean with a cross-offshore, but the swell is a bit short-period at 3ft. Then we hit the big gap. From Saturday, July 18th, right through to the end of the forecast on Friday, July 24th, the surf is tiny and mostly poor. The swell drops to 1ft and 2ft, and the energy is weak (down to 25). There’s simply nothing worth paddling out for in that last week.
The best on offer is definitely Saturday morning, July 11th, with the clean 3ft SE swell, and Thursday afternoon, July 16th, is a solid runner-up. Get on it early, because the following week is a total write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 16°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 9mm), mostly falling on Sun night. Warm (max 21°C on Sun night, min 18°C on Mon afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wed 15 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SE 11 | S 11 | S 10 | S 9 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 12 | SSE 11 | SSE 12 | S 10 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 80 | 110 | 71 | 42 | 127 | 142 | 215 | 246 | 242 | 199 | 151 | 120 | 186 | 121 | 199 | 226 | 163 | 130 | 193 | 180 | 148 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | glassy | glassy | on | cross | cross-off | on | glassy | cross-off | glassy | cross-off | cross | cross | cross | cross | cross | off | glassy | cross-on |
High Tide | 9:08PM0.83m | 10:06AM0.93m | 10:47PM0.80m | 12:19PM1.01m | 00:11AM0.82m | 1:27PM1.12m | 00:59AM0.87m | 2:13PM1.20m | 1:36AM0.93m | 2:52PM1.24m | 2:10AM1.01m | 3:26PM1.23m | 2:43AM1.09m | 3:56PM1.19m | |||||||
Low Tide | 4:39AM0.43m | 5:35PM0.41m | 5:47AM0.34m | 6:48PM0.38m | 6:46AM0.23m | 7:48PM0.36m | 7:38AM0.12m | 8:37PM0.36m | 8:24AM0.03m | 9:17PM0.39m | 9:08AM-0.03m | 9:52PM0.42m | 9:48AM-0.04m | ||||||||
 |  | | | | | |  | |  | | |  |  |  | | | | | | | |
 | — | 6:48 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — |
 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 17 | 17 | 18 | 18 | 19 | 20 | 18 | 19 | 20 | 19 | 19 | 20 | 21 | 20 | 19 | 18 | 19 | 19 | 18 | 18 | 19 |
Feels °C | 17 | 17 | 17 | 19 | 19 | 19 | 18 | 18 | 20 | 21 | 20 | 21 | 23 | 20 | 17 | 16 | 17 | 17 | 19 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 11 | S 10 | S 9 | SE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 12 | SSE 11 | SSE 12 | S 10 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 80 | 110 | 71 | 42 | 127 | 142 | 215 | 246 | 242 | 199 | 151 | 120 | 186 | 121 | 199 | 226 | 163 | 130 | 193 | 180 | 148 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 10 | SE 10 | S 9 | S 8 | S 8 | SSW 7 | S 5 | S 6 | S 8 | S 9 | SE 12 | SSE 14 | ESE 11 | SSE 14 | S 13 | S 13 | SE 10 | S 17 | SSE 15 |
| kJ | 71 | 71 | 52 | 36 | 24 | 12 | 11 | 5 | 14 | 16 | 35 | 83 | 48 | 62 | 12 | 20 | 14 | 13 | 58 | 6 | 21 |
Swell 3 Height (m) Direction Period (s) | S 18 | S 16 | — | E 3 | E 4 | ESE 4 | SE 4 | S 14 | S 14 | — | ESE 4 | ESE 4 | E 5 | SE 12 | — | SE 11 | SE 10 | ESE 10 | S 12 | S 15 | S 16 |
| kJ | 6 | 5 | — | 1 | 1 | 1 | 1 | 4 | 4 | — | 7 | 6 | 4 | 36 | — | 5 | 17 | 9 | 26 | 4 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | ENE 3 | — | — | SSW 8 | — | — | — | E 4 | — | — | SW 3 | SSW 5 | — | — | — | — | — | ESE 4 |
| kJ | — | — | — | 2 | — | — | 19 | — | — | — | 13 | — | — | 4 | 33 | — | — | — | — | — | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 0 | 0 | 17 | 12 | 0 | 90 | 0 | 0 | 0 | 0 | 4 | 113 | 12 | 12 | 6 | 0 | 0 | 2 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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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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