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Praia Grande (Ubatuba) surfForecast / São Paulo / Brazil
12 Day Weather and Surf, issued 8 pm Friday 10 Oct 2025 -03
Best Forecast Surf Conditions for Praia Grande (Ubatuba) this week:
The surf forecast for Praia Grande (Ubatuba) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Oct 11) at 3AM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.3m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia Grande (Ubatuba) in the next 12 days are 1.8m 9s and forecast to arrive on Monday (Oct 13) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Tuesday (Oct 14) at 6PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sat 11th Oct) | 5ft (1.5m) 8s |
| Best Surf | 3PM (Mon 13th Oct) | 6ft (1.8m) 9s |
| Most Powerful | 3PM (Mon 13th Oct) | 6ft (1.8m) 9s |
Table - best surf conditions forecast for Praia Grande (Ubatuba) over the next 12 days.
Short Range Forecast Moderate rain (total 17mm), heaviest on Sun afternoon. Warm (max 26°C on Mon morning, min 19°C on Fri night). Wind will be generally light. | Days 3-6 Weather Summary Heavy rain (total 45mm), heaviest during Mon night. Warm (max 24°C on Tue morning, min 21°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 8 | 8 | |
Wave (?)Graph  | ||||||||||||||||||||||
 kJ (?) | 418 | 264 | 217 | 169 | 212 | 212 | 233 | 316 | 516 | 511 | 254 | 173 | 106 | 79 | 77 | 55 | 54 | 39 | 39 | 71 | 77 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | glass | on | glass | cross- on | glass | cross- off | cross | cross- off | cross- off | glass | on | glass | cross | glass | glass | glass | glass | glass | cross- on | glass | |
High Tide / height (m) | 4:37AM 1.01 | 4:06PM 0.89 | 5:20AM 10:37AM 0.87 0.72 | 4:32PM 0.84 | 6:19AM 11:50AM 0.73 0.81 | 5:03PM 0.77 | 11:02PM 0.46 | 12:25PM 5:58PM 0.87 0.69 | 11:31PM 0.60 | 12:48PM 0.92 | 11:52PM 0.74 | 1:03PM 0.95 | 12:14AM 0.87 | 1:13PM 0.98 | ||||||||
Low Tide / height (m) | 10:43PM 0.16 | 11:50AM 0.55 | 11:25PM 0.23 | 9:02AM 0.70 | 1:01PM 0.68 | 12:54AM 0.32 | 8:21AM 0.69 | 2:48PM 0.73 | 10:24PM 2:48AM 0.46 0.35 | 4:44PM 0.69 | 10:02PM 0.59 | 4:24AM 0.31 | 5:39PM 0.59 | 5:31AM 0.24 | 6:11PM 0.49 | 6:18AM 0.17 | ||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | ||||||||||||||||
| Sunrise | - | 5:31 | - | - | 5:30 | - | - | 5:28 | - | - | 5:28 | - | - | 5:26 | - | - | 5:26 | - | - | 5:26 | - | |
| Sunset | - | - | 6:02 | - | - | 6:02 | - | - | 6:02 | - | - | 6:04 | - | - | 6:04 | - | - | 6:05 | - | - | 6:05 | |
 |  |  | |  | | | |  | | | | | | | | | | | | | ||
Rain (mm) | 3 | - | 2 | 2 | - | 4 | 2 | - | 4 | 27 | 3 | 3 | 2 | 1 | 2 | 1 | - | 6 | 2 | - | 8 | |
| Temp. °C | 20 | 22 | 23 | 20 | 24 | 23 | 22 | 26 | 25 | 22 | 24 | 23 | 21 | 22 | 22 | 22 | 24 | 23 | 22 | 25 | 24 | |
| Feels °C (?) | 22 | 24 | 25 | 23 | 25 | 26 | 24 | 30 | 27 | 25 | 27 | 26 | 23 | 25 | 25 | 26 | 27 | 26 | 25 | 28 | 28 | |
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Recent Eyeball Surf Reports for São Paulo
Continuing clean conditions at Praia Grande (Ubatuba) (calm at Parati 44 km from Praia Grande (Ubatuba)). 1.7m 8s swell from the ESE with a 0.6m 8s swell, also from the ESE. 2 swells combining to make bigger set waves.
44 km away, 1 h 31 min ago
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Information about the Praia Grande (Ubatuba) Surf forecast
The above surf forecast table for Praia Grande (Ubatuba) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Praia Grande (Ubatuba) can be found by selecting the local surf guide option on the grey menu. Our Praia Grande (Ubatuba) 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 (Praia Grande (Ubatuba)) 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 Praia Grande (Ubatuba) 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.
Praia Grande (Ubatuba) is 4 km (2 miles) from the city of Ubatuba. If you plan a holiday in São Paulo, look for hotels and other accommodation in Ubatuba. Ubatuba has rooms for a wide range of budgets as well as car hire and transport links.
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