
Surf Forecasts:
Ilha surf forecast from 27 Jul 2026:
- Best quality surf: Saturday 1 Aug, 12AM (local time) - 4ft (1.2m), 6s period, E swell with glassy winds.
- Most powerful swell: Saturday 1 Aug, 6AM (local time) - 4.5ft (1.4m), 6s period, E swell with 161 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 9AM (local time) - 2.5ft (0.7m), 8s 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 Monday (Jul 27) at 9AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.5m and 11s. Another secondary swell of 0.5m and 4s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ilha in the next 16 days are 1.4m 6s and forecast to arrive on Saturday (Aug 01) 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 0.3m 2s period and expected on Wednesday (Jul 29) at 3PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 27th Jul) | 2.5ft (0.7m) 8s |
| Best Surf | 12AM (Sat 1st Aug) | 4ft (1.2m) 6s |
| Most Powerful | 6AM (Sat 1st Aug) | 4.5ft (1.4m) 6s |
Table - best surf conditions forecast for Ilha over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it.
The next couple of weeks look pretty quiet around Ilha. There’s some small swell coming through, but it’s mostly very ordinary, with a lot of poor conditions and cross-onshore winds messing things up. The first few days have tiny waves and mixed wind, but there are a few windows where the morning glass-off might give you something rideable. The water temp is sitting at 69°F, which is about average for this time of year, nothing unusual there.
Let’s start with Monday, 27 July. The morning is the pick of a very average day – we’ve got a 2ft SE swell at 8 seconds, with glassy conditions from a light NE breeze. The combined swell energy is weak at 145, so it’s small and pretty weak, but it’s clean. Don’t expect much power. That afternoon the wind shifts east and it gets cross-onshore, turning it into a bit of a mess.
Tuesday, 28 July, the morning is glassy again with a 2ft SE swell, but the energy drops to 77. It’s surfable if you’re desperate, but it’s tiny. The afternoon gets cross-onshore again and choppy. Wednesday, 29 July, we get a nice offshore wind from the north in the morning, with a 1ft SSE swell that’s long period at 12 seconds. The clean conditions are a positive, but the wave height is so small it’s barely worth paddling out for.
Thursday, 30 July, and Friday, 31 July, are pretty grim – cross-shore winds, light rain, and tiny swell. Friday morning is glassy but only 1.0ft of SSE swell, so not much to work with. Saturday, 1 August, the morning is glassy again with a 3ft ESE swell, but the period is only 6 seconds – short and weak. The energy is 96, still weak. It’s a tiny slop, but clean.
The standout in this whole period is actually the morning of Wednesday, 5 August. We get a 2ft S swell with a 12-second period, and the conditions are glassy – calm wind, clean. The combined energy hits 133, which is still moderate but the best we’ve seen. The long period should give a bit of shape, but at this size it’s going to be gentle. It’s the best chance for a few clean, fun waves.
The following week into early August is mostly small and messy. The morning of 6 August has a 3ft SSE swell with clean cross-off winds, energy at 162, but it’s still small. The morning of 7 August is glassy with a 3ft SSE swell, energy 124 – again clean but weak. The afternoon of 9 August sees a 5ft S swell roll in, but it’s onshore wind and the period is only 7 seconds, so it’s going to be a lumpy, choppy mess. That’s more of a kite-surfing setup than a paddle session.
Overall, nothing fires up. The best bet is to hit the early mornings when it’s glassy, especially on 5 August for that slightly longer period S swell. Keep your expectations low – it’s a lean run.
Rusty
Short Range ForecastMostly dry. Warm (max 31°C on Wed morning, min 19°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Warm (max 26°C on Sat night, min 19°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | |||||||||||||||
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) | SE 8 | SE 8 | SSE 12 | SE 8 | S 11 | SSE 12 | SSE 12 | S 11 | SSE 11 | SSE 10 | SSE 10 | S 10 | SSE 14 | S 9 | E 6 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
Wave Graph | |||||||||||||||||||||
68 | 54 | 50 | 50 | 64 | 30 | 46 | 21 | 40 | 35 | 33 | 46 | 37 | 43 | 94 | 52 | 61 | 42 | 42 | 43 | 28 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | off | off | cross-on | cross | cross | cross | cross | glassy | cross-on | glassy | glassy | cross-on | cross-off | cross-off | cross | cross |
High Tide | 2:21PM1.12m | 1:49AM1.03m | 2:44PM1.16m | 2:16AM1.12m | 3:07PM1.20m | 2:44AM1.20m | 3:31PM1.21m | 3:14AM1.25m | 3:57PM1.22m | 3:45AM1.28m | 4:25PM1.20m | 4:20AM1.27m | 4:57PM1.16m | ||||||||
Low Tide | 8:18PM0.37m | 8:20AM0.06m | 8:49PM0.33m | 8:56AM0.01m | 9:18PM0.31m | 9:30AM-0.02m | 9:48PM0.29m | 10:04AM-0.01m | 10:18PM0.30m | 10:38AM0.03m | 10:49PM0.32m | 11:13AM0.10m | 11:20PM0.35m | ||||||||
6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | |
— | 5:38 | — | — | 5:39 | — | — | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 23 | 27 | 27 | 28 | 31 | 21 | 24 | 20 | 19 | 20 | 20 | 20 | 20 | 21 | 22 | 26 | 26 | 22 | 20 |
Feels °C | 21 | 21 | 23 | 26 | 25 | 27 | 30 | 20 | 24 | 20 | 19 | 22 | 23 | 22 | 22 | 22 | 23 | 25 | 25 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 6 | SSE 12 | ESE 7 | ESE 7 | SSE 10 | S 6 | S 6 | SSE 7 | S 9 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
68 | 54 | 41 | 50 | 37 | 12 | 46 | 15 | 20 | 35 | 11 | 19 | 29 | 43 | 49 | 52 | 61 | 42 | 42 | 43 | 28 | |
Swell 2 Height (m) Direction Period (s) | S 11 | SSE 11 | SSE 12 | S 12 | S 12 | SE 8 | ESE 6 | S 11 | SSE 11 | SSW 4 | SSE 10 | S 10 | SSE 9 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 10 | S 10 | S 10 | S 10 |
65 | 41 | 50 | 23 | 23 | 9 | 7 | 21 | 40 | 5 | 33 | 46 | 29 | 34 | 49 | 44 | 40 | 22 | 8 | 9 | 2 | |
Swell 3 Height (m) Direction Period (s) | S 15 | S 14 | E 7 | S 15 | S 11 | SSE 12 | SE 7 | SE 8 | ESE 8 | ESE 7 | E 7 | ESE 7 | SSE 14 | S 10 | S 9 | — | — | — | — | S 9 | S 8 |
4 | 33 | 1 | 4 | 64 | 30 | 9 | 10 | 6 | 10 | 4 | 5 | 37 | 2 | 14 | — | — | — | — | 1 | 1 | |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | E 4 | — | E 6 | — | — | NW 2 | — | SW 4 | — | — | — | ESE 5 | E 6 | — | — | — | — | — | — |
8 | 3 | 12 | — | 18 | — | — | 1 | — | 7 | — | — | — | 14 | 94 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 14 | 4 | 5 | 14 | 8 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 4 | 21 |
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.










