Surf Forecasts:
Ilha surf forecast from 30 Jul 2026:
- Best quality surf: Saturday 1 Aug, 12AM (local time) - 4ft (1.2m), 6s period, E swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 3AM (local time) - 5ft (1.5m), 6s period, E swell with 173 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 12AM (local time) - 4ft (1.2m), 6s period with E 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 Saturday (Aug 01) at 12AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.9m and 5s. Another secondary swell of 0.4m and 9s is also forecast. 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 1.5m 6s and forecast to arrive on Saturday (Aug 01) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sat 1st Aug) | 4ft (1.2m) 6s |
| Best Surf | 12AM (Sat 1st Aug) | 4ft (1.2m) 6s |
| Most Powerful | 3AM (Sat 1st Aug) | 5ft (1.5m) 6s |
Table - best surf conditions forecast for Ilha over the next 16 days.
The Lowdown
G'day, Rusty here. Let’s talk about Ilha for the next couple of weeks. Gotta be honest, it’s a slow burn with a whole lot of nothing before we get a proper window.
The first few days are flat and messy. Tiny waves and poor conditions through the end of July and into early August. Don’t bother.
Saturday the 1st of August morning shows a little life. Water temp is 69°, pretty standard for this time of year. Swell is a tiny 2 ft from the South with an 11-second period. Combined energy is moderate at 112. The wind is dead calm – glassy as. You could get wet on a longboard, but it’s very ordinary. Small and clean, but not exciting.
Then it’s back to a long stretch of poor conditions until the second week of August.
The real highlight is Tuesday the 11th of August in the afternoon. The swell bumps to 4 ft from the SSE with a very long period of 16 seconds – that’s proper groundswell. The combined energy is strong at 834. And the wind? Glassy, with just a slight air. For a reef break, this SSE direction and long period are a dream. It’s not for beginners at that size, but for intermediates and up, this is the session to circle. Clean, powerful, and looking well-shaped.
That’s your one golden window. A lot of dud days, but that Tuesday arvo looks like it’ll fire. Keep the fingers crossed.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat night, min 19°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun morning, min 18°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||
Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||||
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) | SSE 10 | SSE 10 | SSE 10 | SSE 14 | ESE 5 | E 6 | S 11 | S 11 | E 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SSE 14 | S 13 | S 12 | S 11 | S 11 | S 11 | S 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 33 | 32 | 39 | 34 | 85 | 65 | 59 | 119 | 36 | 26 | 25 | 15 | 26 | 41 | 87 | 108 | 94 | 86 | 58 | 51 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross | cross | glassy | cross-on | glassy | cross | cross-on | cross | cross | cross-on | cross |
High Tide | 3:31PM1.21m | 3:14AM1.25m | 3:57PM1.22m | 3:45AM1.28m | 4:25PM1.20m | 4:20AM1.27m | 4:57PM1.16m | 4:58AM1.23m | 5:31PM1.09m | 5:41AM1.14m | 6:09PM0.98m | 6:31AM1.03m | 6:53PM0.86m | ||||||||
Low Tide | 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 | 11:52AM0.21m | 11:55PM0.40m | 12:43PM0.34m | 00:43AM0.45m | 2:10PM0.48m | 2:29AM0.49m | |||||||
 | |  | |  | | | | | | |  | | | | | | | | |  | |
 | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 20 | 20 | 20 | 20 | 20 | 19 | 22 | 22 | 24 | 24 | 19 | 18 | 19 | 19 | 22 | 21 | 20 | 20 | 18 | 19 | 18 |
Feels °C | 20 | 21 | 21 | 19 | 19 | 19 | 21 | 23 | 22 | 23 | 18 | 18 | 19 | 19 | 22 | 20 | 20 | 21 | 18 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 10 | S 5 | SSE 9 | S 9 | ESE 5 | ESE 6 | S 11 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | S 13 | S 12 | S 11 | S 11 | S 11 | S 6 |
| kJ | 35 | 33 | 8 | 29 | 27 | 49 | 47 | 59 | 40 | 36 | 26 | 25 | 15 | 26 | 25 | 87 | 108 | 94 | 86 | 58 | 16 |
Swell 2 Height (m) Direction Period (s) | E 6 | ESE 7 | SSE 10 | S 5 | SSE 13 | S 9 | S 11 | — | S 11 | S 10 | S 10 | SW 4 | SW 4 | SSW 5 | SSE 14 | ESE 6 | ESE 8 | ESE 7 | ESE 8 | ESE 8 | S 10 |
| kJ | 3 | 5 | 32 | 4 | 34 | 23 | 65 | — | 20 | 8 | 7 | 3 | 1 | 2 | 41 | 14 | 32 | 18 | 26 | 13 | 51 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 8 | ESE 7 | SSE 14 | SE 8 | SSE 12 | — | — | — | S 9 | S 8 | S 10 | S 10 | S 16 | SE 11 | SE 11 | SE 10 | SE 10 | SSW 7 | ESE 9 | ESE 7 |
| kJ | 2 | 2 | 5 | 39 | 2 | 49 | — | — | — | 2 | 1 | 2 | 2 | 5 | 20 | 19 | 17 | 14 | 10 | 8 | 11 |
Wind waves Height (m) Direction Period (s) | SSW 4 | S 4 | E 7 | SE 4 | ESE 5 | E 6 | — | ESE 7 | E 6 | — | SSW 3 | WSW 4 | — | — | — | — | — | SW 3 | SW 4 | SSW 4 | — |
| kJ | 3 | 3 | 4 | 9 | 27 | 85 | — | 47 | 119 | — | 4 | 8 | — | — | — | — | — | 3 | 4 | 20 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 410 | 30 | 2 | 58 | 0 | 0 | 2 | 0 | 5 | 88 | 30 | 31 | 30 | 0 | 4 | 53 | 4 | 4 | 6 | 4 |
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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