
Surf Forecasts:
Ilha surf forecast from 12 Jul 2026:
- Best quality surf: Tuesday 14 Jul, 6PM (local time) - 5ft (1.5m), 11s period, SSE swell with glassy winds.
- Most powerful swell: Monday 13 Jul, 3PM (local time) - 7ft (2.2m), 10s period, S swell with 1,081 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 6AM (local time) - 2.5ft (0.8m), 12s period with SE 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 Sunday (Jul 12) at 6AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.2m and 4s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Ilha in the next 16 days are 2.2m 10s and forecast to arrive on Monday (Jul 13) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 12th Jul) | 2.5ft (0.8m) 12s |
| Best Surf | 6PM (Tue 14th Jul) | 5ft (1.5m) 11s |
| Most Powerful | 3PM (Mon 13th Jul) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Ilha over the next 16 days.
Alright folks, Rusty here. Let’s take a look at what’s shaping up at Ilha over the next couple of weeks.
It’s a bit of a slow start, with the first real recommendation not popping up until Wednesday morning, July 15th. Before that, we’ve got a few days of messy, choppy conditions and questionable swell. Sunday the 12th starts with a weak, cross-shore 2.6ft SE swell (combined energy of 255) but it’s just not clean enough. The rain showers and building wind on Monday the 13th actually push the swell up to 7.2ft in the afternoon (combined energy of 1630), but with a strong cross-onshore wind, it’s blown out and choppy—honestly, that setup looks more interesting for kite surfing than a paddle session.
The first real standout comes Wednesday morning, July 15th. We’ve got a clean 4.3ft SE groundswell rolling in with a solid 11-second period and combined energy of 436. The key here is the wind: it’s glassy, dead calm, with a slight air from the north. That’s going to make for some beautiful, clean faces at Ilha. This is a reef break that’s fairly consistent, exposed to the SE swell, and it’s an intermediate-level wave. Expect some good shape on this one.
Thursday the 16th morning is almost a carbon copy—another 4.3ft SE swell (combined energy of 399) with glassy conditions. It’s a great little run of clean surf. Friday the 17th morning keeps the theme going with a slightly smaller 3.9ft SE swell (combined energy of 393), but with a light cross-offshore breeze, it’ll be clean and peeling nicely.
After that, we see the swell dropping off. From Saturday the 18th onward, it gets pretty marginal. The energy dips into the weak range (combined energy of 135 on Saturday morning), and by Sunday the 19th, we’re looking at dribbly 1.6ft waves. There’s a long gap of tiny, poor-quality surf from the 18th right through to the 25th of July. The swell is short-period and weak, and while there are some offshore wind moments, the waves are just too small to get excited about.
But hold on. The long-range forecast is showing some promise. Sunday the 26th of July is shaping up to be the best of the whole outlook. Early morning we’ve got a 3.3ft S swell, but with a very long period of 12 seconds and combined energy of 504—that’s moderate energy and quality. And the wind? Glassy, with a slight air from the NNE. For a reef break like Ilha, a long period swell from the south can really line up nicely. This one is a standout, but it’s a week and a half away, so while it looks promising, don’t book your flights just yet. Keep an eye on it.
Monday the 27th morning is more of a return to middling conditions with a cross-shore breeze and a weaker 3.0ft swell (combined energy of 326).
So, bottom line: the first week has a couple of nice, clean mornings on Wednesday, Thursday, and Friday. The second week is mostly flat and poor until that Sunday the 26th, which is the one to circle on the calendar.
Stay stoked.
Short Range ForecastModerate rain (total 13mm), heaviest on Sat night. Warm (max 22°C on Sat night, min 16°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Fri morning, min 16°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||
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 13 | SE 12 | SE 12 | SSE 8 | S 9 | S 10 | SSE 10 | SSE 10 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SE 12 | ESE 11 | ESE 10 | ESE 10 |
Wave Graph | |||||||||||||||||||||
199 | 181 | 120 | 192 | 397 | 1081 | 399 | 307 | 517 | 534 | 414 | 371 | 263 | 396 | 369 | 349 | 393 | 309 | 211 | 127 | 86 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | cross-off | cross | off | off | cross |
High Tide | 00:59AM0.87m | 2:13PM1.20m | 1:36AM0.93m | 2:52PM1.24m | 2:10AM1.01m | 3:26PM1.23m | 2:43AM1.09m | 3:56PM1.19m | 3:17AM1.16m | 4:24PM1.13m | 3:52AM1.19m | 4:50PM1.07m | 4:27AM1.19m | 5:16PM1.01m | |||||||
Low Tide | 7:38AM0.12m | 8:37PM0.36m | 8:24AM0.03m | 9:17PM0.39m | 9:08AM-0.03m | 9:52PM0.42m | 9:48AM-0.04m | 10:21PM0.46m | 10:26AM-0.01m | 10:45PM0.49m | 11:01AM0.07m | 11:04PM0.49m | 11:33AM0.17m | ||||||||
— | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | |
— | — | 5:32 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | |
mm | 4 | — | 2 | 2 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 19 | 18 | 17 | 18 | 16 | 17 | 17 | 17 | 19 | 18 | 19 | 19 | 20 | 26 | 25 | 25 | 27 | 26 |
Feels °C | 22 | 21 | 17 | 18 | 16 | 14 | 15 | 15 | 16 | 17 | 16 | 18 | 18 | 18 | 19 | 19 | 24 | 21 | 23 | 25 | 21 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 12 | SE 12 | SSE 8 | S 9 | SSE 11 | SSE 10 | SSE 10 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SE 12 | ESE 11 | ESE 10 | ESE 10 |
199 | 181 | 120 | 192 | 397 | 531 | 399 | 307 | 517 | 534 | 414 | 371 | 263 | 396 | 369 | 349 | 393 | 309 | 211 | 127 | 86 | |
Swell 2 Height (m) Direction Period (s) | ESE 4 | S 21 | — | SE 12 | S 16 | S 15 | S 14 | S 14 | S 12 | S 12 | S 11 | S 11 | ESE 6 | S 13 | S 13 | S 12 | — | S 19 | S 18 | S 16 | S 15 |
3 | 35 | — | 87 | 21 | 18 | 36 | 33 | 11 | 11 | 22 | 9 | 45 | 3 | 3 | 3 | — | 7 | 6 | 5 | 4 | |
Swell 3 Height (m) Direction Period (s) | S 6 | E 3 | — | SSE 12 | S 16 | — | — | — | — | — | — | — | S 14 | — | — | — | — | — | S 12 | S 12 | S 11 |
1 | 1 | — | 28 | 21 | — | — | — | — | — | — | — | 4 | — | — | — | — | — | 3 | 3 | 2 | |
Wind waves Height (m) Direction Period (s) | — | SSW 10 | S 4 | — | — | S 10 | — | — | — | — | — | E 5 | E 6 | — | — | — | — | — | — | — | — |
— | 38 | 38 | — | — | 1081 | — | — | — | — | — | 49 | 62 | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 4 | 101 | 4 | 96 | 136 | 53 | 4 | 57 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 8 | 0 | 0 | 8 |
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.











