Surf Forecasts:
Itanhaem surf forecast from 6 Aug 2026:
- Best quality surf: Saturday 8 Aug, 3PM (local time) - 3.5ft (1.0m), 14s period, SSE swell with glassy winds.
- Most powerful swell: Saturday 8 Aug, 12PM (local time) - 4ft (1.2m), 16s period, SSE swell with 645 kJ wave energy.
- Next surfable swell (1★+): Thursday 6 Aug, 3AM (local time) - 1.5ft (0.4m), 10s period with SSE swell.
Best Forecast Surf Conditions for Itanhaem this week:
The surf forecast for Itanhaem over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 06) at 3AM. The primary swell is predicted to be 0.4m and 10s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Itanhaem in the next 16 days are 1.2m 16s and forecast to arrive on Saturday (Aug 08) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Thursday (Aug 06) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Thu 6th Aug) | 1.5ft (0.4m) 10s |
| Best Surf | 3PM (Sat 8th Aug) | 3.5ft (1.0m) 14s |
| Most Powerful | 12PM (Sat 8th Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for Itanhaem over the next 16 days.
The Lowdown
Alright crew, Rusty here, breakin’ down the Itanhaem zone for the next couple weeks.
Water temp is just about normal for the season. The forecast starts real slow. From Thursday 6th August to Friday 7th, it’s flat and weak – waves barely 1ft, no energy, not worth wetsuitin’ up.
Saturday 8th August shows some life. The mornin’ is still iffy, but the afternoon is a bright spot: glassy conditions, a clean 3ft SSE swell rollin’ in with a 14-second period. That’s a groundswell with some guts. Combined energy is 453, so it’s got a bit of push. Small but clean, good for intermediates.
Then we get a few days of rain and onshore wind – Sunday 9th through Tuesday 11th is just a write-off. Wednesday 12th is still messy. Thursday 13th August morning comes back with a glassy 3ft SSE swell, 12-second period, energy at 379. Itanhaem lines up with the SSE, and with the wind off the land, it’ll be clean. Decent little session.
The real standout of the first week is Friday 14th August morning. Glassy, 3ft of SSE groundswell at 14 seconds, energy 415. That’s a proper lined-up wave. Itanhaem is a fairly consistent, exposed beach, and the swell direction matches the optimum. Crowds are often, so you’ll have company. That’s the one to aim for.
After that, it’s more rain and poor surf through Saturday 15th and Sunday 16th. A couple glassy mornings again on Monday 17th and Tuesday 18th August, but the waves are still small.
Then Tuesday 18th August morning throws down for the experts. The swell jumps to 8ft from the SSE, period 11 seconds, and the energy is a beast at 2306. Glassy conditions, so it’ll be clean. But at 8ft, this is for the experienced crew only – too big for beginners, powerful and heavy. The afternoon gets chopped up by the wind.
The rest of the outlook from Wednesday 19th through Thursday 20th and Friday 21st August is small and messy. Friday 21st August morning is glassy but only 4ft from the SE with a short 8-second period and energy of 191 – weak and sputtery, a few fun ones but nothin’ special.
Best bets: Saturday 8th August afternoon and Friday 14th August morning for the cleanest, most rideable waves. The big swell on Tuesday 18th August is for the bold only.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Fri night. Warm (max 30°C on Thu morning, min 19°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Mon night. Warm (max 23°C on Sat night, min 16°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||
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 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 10 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 40 | 23 | 24 | 20 | 19 | 19 | 11 | 173 | 443 | 229 | 236 | 165 | 422 | 385 | 501 | 419 | 383 | 469 | 443 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | off | cross | cross-on | glassy | cross | glassy | glassy | cross-on | on | on | cross-on | cross-on | on | on | on | cross-on |
High Tide | 7:55AM0.99m | 8:14PM0.81m | 9:57AM0.94m | 10:01PM0.76m | 1:07PM1.08m | 00:01AM0.83m | 1:38PM1.20m | 00:52AM0.96m | 2:06PM1.29m | 1:28AM1.09m | 2:34PM1.33m | 2:01AM1.22m | |||||||
Low Tide | 11:51PM0.53m | 4:31PM0.60m | 00:40AM0.61m | 4:39AM0.51m | 6:04PM0.55m | 5:56AM0.38m | 7:07PM0.48m | 6:53AM0.23m | 7:52PM0.43m | 7:39AM0.09m | 8:28PM0.40m | 8:18AM-0.00m | 8:57PM0.40m | ||||||
 |  |  |  | |  |  | | | |  | |  | | | | | | | |
 | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — |
mm | — | — | — | 1 | — | 1 | 9 | — | — | 1 | — | 2 | 4 | 2 | 2 | 7 | 2 | 2 | 1 |
Temp °C | 23 | 30 | 29 | 25 | 28 | 25 | 19 | 23 | 24 | 23 | 20 | 19 | 19 | 19 | 18 | 18 | 16 | 16 | 17 |
Feels °C | 23 | 30 | 30 | 24 | 26 | 25 | 21 | 25 | 27 | 25 | 20 | 20 | 20 | 20 | 18 | 17 | 14 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSE 4 | SSE 10 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 12 |
| kJ | 33 | 23 | 24 | 20 | 19 | 19 | 5 | 173 | 443 | 229 | 236 | 165 | 422 | 385 | 501 | 419 | 383 | 469 | 443 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | ESE 8 | ESE 8 | ESE 7 | E 5 | ESE 6 | S 5 | ESE 8 | ESE 8 | E 8 | SE 12 | — | E 7 | — |
| kJ | 40 | 19 | 17 | 16 | 8 | 7 | 11 | 11 | 5 | 20 | 13 | 25 | 6 | 6 | 1 | 6 | — | 9 | — |
Swell 3 Height (m) Direction Period (s) | S 7 | S 16 | SE 15 | SSE 13 | SSE 12 | SSE 11 | SSE 10 | SSE 17 | — | SSE 16 | E 15 | ESE 6 | E 13 | — | — | E 12 | — | — | — |
| kJ | 4 | 5 | 8 | 17 | 14 | 12 | 9 | 30 | — | 137 | 4 | 7 | 4 | — | — | 3 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | E 4 | E 6 | SW 3 | — | E 7 | SE 5 | — | ESE 6 | ESE 5 | ESE 5 | E 5 |
| kJ | — | — | — | — | — | — | — | — | 5 | 66 | 3 | — | 26 | 23 | — | 39 | 29 | 28 | 32 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 9 | 9 | 0 | 9 | 88 | 19 | 40 | 0 | 0 | 70 | 395 | 44 | 30 | 194 | 395 | 347 | 194 | 46 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Itanhaem Surf forecast
The above surf forecast table for Itanhaem provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Itanhaem can be found by selecting the local surf guide option on the grey menu. Our Itanhaem 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 (Itanhaem) 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 Itanhaem 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.
Itanhaem is 4 km (2 miles) from Itanhaem. If you plan a holiday in São Paulo, look for hotels and other accommodation in Itanhaem. Itanhaem has rooms for a wide range of budgets as well as car hire and transport links.
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