Surf Forecasts:
Praia Tenório surf forecast from 18 Aug 2026:
- Best quality surf: Sunday 23 Aug, 3AM (local time) - 4ft (1.2m), 10s period, S swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 6ft (1.9m), 14s period, SSE swell with 1,408 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 12PM (local time) - 2ft (0.6m), 9s period with SSW swell.
Best Forecast Surf Conditions for Praia Tenório this week:
The surf forecast for Praia Tenório over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 12PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Praia Tenório in the next 16 days are 1.9m 14s and forecast to arrive on Monday (Aug 24) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 8s period and expected on Tuesday (Aug 18) at 6AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 21st Aug) | 2ft (0.6m) 9s |
| Best Surf | 3AM (Sun 23rd Aug) | 4ft (1.2m) 10s |
| Most Powerful | 9PM (Mon 24th Aug) | 6ft (1.9m) 14s |
Table - best surf conditions forecast for Praia Tenório over the next 16 days.
The Lowdown
G’day, Rusty here. Look, this 16-day run at Praia Tenório is a slow start, no two ways about it. First week is mostly junk. You got flat dribble from the 18th through the 20th—swell around 0.3ft to 0.7ft, and energy readings in the single digits to low teens. Glassy mornings will have you thinking about it, but there’s nothing to ride. Don’t bother.
Friday the 21st and Saturday the 22nd, the swell starts to fill in a bit—up to 2ft to 3ft—but the wind’s onshore and it’s messy. Saturday afternoon sees 4ft from the south with energy around 327, but it’s cross-onshore and the comment is “marginal.” Not worth it.
Sunday the 23rd and Monday the 24th are still poor. Rain and choppy cross-onshore winds, with swell around 4ft to 5ft. The energy gets stronger—up to 510 Monday morning—but the period is short and it’s just not clean.
Now, the one to circle: Tuesday the 25th morning. Swell hits 6ft from the SSE with a 14-second period—that’s proper groundswell. Energy is reading 1266, which is strong, and the wind is glassy. The wave comment says “expect very good surf conditions.” This is the standout. That size is pushing it for beginners—you’re getting into the territory where only the more confident should be out. The long period means power, but it might be a bit straight for the beach. Still, this is the day.
Wednesday the 26th is your backup. Morning has 4ft with a clean cross-off breeze, and the afternoon drops to 3ft with glassy conditions again. Energy is moderate (462-469), and the comments say “good surf conditions.” Solid option.
After that, it fades out. Thursday the 27th through the 31st drops to 2ft to 3ft with weak to moderate energy (56 to 242). Some clean windows, but gutless. The 1st of September has wind picking up to 20 km/h, but short periods and weak energy—forget it.
Then, Wednesday the 2nd of September gives one more tease: 5ft from the SSE, but with a 7-second period—that’s short period windswell. Cross-off wind and moderate energy (285), comment says “expect good surf conditions,” but that short period means it’ll be soft and mushy. Only if you’re keen.
So, the plan: first 6 days are a write-off. The 23rd and 24th are poor. Tuesday the 25th is the big one—get out there early. The 26th is a decent backup. After that, it’s small and weak again. Patience, mate.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed morning, min 21°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri afternoon. Warm (max 28°C on Fri morning, min 18°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||
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 9 | S 9 | S 9 | SE 13 | SE 13 | SE 12 | S 12 | S 10 | S 9 | SSW 4 | S 7 | S 7 | S 10 | S 9 | S 10 | S 9 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 34 | 19 | 17 | 7 | 7 | 7 | 7 | 6 | 6 | 18 | 14 | 18 | 113 | 58 | 327 | 210 | 257 | 207 | 501 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | glassy | glassy | cross | glassy | cross | cross | glassy | glassy | on | cross-off | on | cross-on | on | cross | cross-on | cross |
High Tide | 5:06AM1.01m | 5:09PM0.91m | 5:43AM0.90m | 5:34PM0.84m | 6:29AM0.78m | 6:02PM0.77m | 8:05AM0.67m | 12:23PM0.73m | 6:44PM0.68m | 12:55PM0.83m | 00:18AM0.68m | 1:21PM0.92m | 00:50AM0.79m | ||||||
Low Tide | 11:21PM0.29m | 11:54AM0.39m | 11:55PM0.32m | 12:29PM0.51m | 00:50AM0.37m | 1:51PM0.61m | 2:31AM0.41m | 8:51AM0.67m | 4:03PM0.64m | 4:21AM0.39m | 5:55PM0.57m | 5:43AM0.31m | 6:44PM0.48m | ||||||
 |  | | | | | | | | |  |  | | | |  | |  |  | |
 | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 2 | 1 | 7 |
Temp °C | 22 | 25 | 24 | 25 | 28 | 26 | 24 | 23 | 23 | 24 | 28 | 22 | 19 | 19 | 20 | 18 | 18 | 18 | 18 |
Feels °C | 23 | 27 | 26 | 24 | 28 | 27 | 25 | 25 | 25 | 23 | 28 | 24 | 19 | 19 | 20 | 18 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | E 7 | E 7 | ESE 8 | ESE 8 | S 7 | S 7 | S 10 | S 9 | S 10 | S 9 | S 11 |
| kJ | 257 | 191 | 143 | 91 | 91 | 71 | 49 | 37 | 48 | 61 | 151 | 101 | 113 | 58 | 327 | 210 | 257 | 207 | 501 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 9 | S 9 | S 9 | SE 13 | SE 13 | SE 12 | S 12 | S 10 | S 9 | S 9 | E 8 | E 8 | E 8 | E 8 | E 7 | S 12 | E 8 |
| kJ | 34 | 19 | 17 | 7 | 7 | 7 | 7 | 6 | 3 | 18 | 14 | 13 | 49 | 21 | 20 | 10 | 4 | 106 | 4 |
Swell 3 Height (m) Direction Period (s) | — | S 9 | S 9 | S 8 | SE 13 | SE 13 | S 10 | S 9 | SE 12 | SE 12 | S 7 | — | S 14 | S 12 | — | — | — | E 8 | — |
| kJ | — | 2 | 2 | 1 | 7 | 7 | 2 | 2 | 6 | 5 | 4 | — | 4 | 11 | — | — | — | 5 | — |
Wind waves Height (m) Direction Period (s) | E 8 | — | — | — | — | — | — | — | — | E 7 | — | SSW 4 | — | — | — | — | — | — | — |
| kJ | 541 | — | — | — | — | — | — | — | — | 134 | — | 18 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 64 | 70 | 0 | 0 | 3 | 0 | 4 | 1432 | 17 | 3 | 42 | 42 |
Best forecast wave conditions in São Paulo | |||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||
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Information about the Praia Tenório Surf forecast
The above surf forecast table for Praia Tenório provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia Tenório can be found by selecting the local surf guide option on the grey menu. Our Praia Tenório 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 Tenório) 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 Tenório 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 Tenório 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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