Surf Forecasts:
Praia do Guaeca surf forecast from 14 Oct 2026:
- Best quality surf: Sunday 18 Oct, 12AM (local time) - 4.5ft (1.3m), 8s period, S swell with glassy winds.
- Most powerful swell: Sunday 18 Oct, 6AM (local time) - 6ft (1.8m), 10s period, S swell with 696 kJ wave energy.
- Next surfable swell (1★+): Wednesday 14 Oct, 12AM (local time) - 2.5ft (0.8m), 10s period with S swell.
Best Forecast Surf Conditions for Praia do Guaeca this week:
The surf forecast for Praia do Guaeca over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 14) at 12AM. The primary swell is predicted to be 0.8m 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 Praia do Guaeca in the next 16 days are 1.8m 10s and forecast to arrive on Sunday (Oct 18) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Oct 14) at 9AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 14th Oct) | 2.5ft (0.8m) 10s |
| Best Surf | 12AM (Sun 18th Oct) | 4.5ft (1.3m) 8s |
| Most Powerful | 6AM (Sun 18th Oct) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Praia do Guaeca over the next 16 days.
Short Range ForecastHeavy rain (total 32mm), heaviest during Wed afternoon. Warm (max 26°C on Wed morning, min 21°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Fri afternoon. Warm (max 22°C on Sat morning, min 18°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Tue 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | ||||||||||||||
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) | S 10 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | S 8 | S 10 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 54 | 125 | 90 | 83 | 56 | 24 | 48 | 45 | 37 | 78 | 184 | 118 | 118 | 234 | 490 | 263 | 595 | 492 | 463 | 419 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross | off | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | on | cross-on | on | cross-on |
High Tide | 3:10PM0.98m | 3:44AM1.03m | 3:37PM0.94m | 4:20AM0.94m | 4:07PM0.88m | 5:12AM0.85m | 4:50PM0.81m | 11:48PM0.38m | 6:30AM0.80m | 6:16PM0.76m | 7:32AM0.77m | 7:22PM0.76m | 9:05AM0.78m | 8:33PM0.77m | ||||||
Low Tide | 8:42PM0.12m | 9:00AM0.41m | 8:49PM0.19m | 8:47AM0.52m | 8:52PM0.28m | 8:39AM0.59m | 9:04PM0.38m | 8:46AM0.66m | 1:06PM0.66m | 9:32PM0.48m | 8:57AM0.74m | 3:13PM0.63m | 3:11AM0.37m | 3:59PM0.54m | ||||||
 |  |  |  | |  |  |  | | | | | |  | | | |  | | | |
 | — | — | 5:30 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:26 | — | — | 5:24 | — | — |
 | 6:05 | — | — | 6:06 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — |
mm | — | 6 | 2 | 10 | 3 | — | 2 | 5 | 4 | 6 | 5 | 2 | — | — | — | — | 2 | 2 | 2 | 2 |
Temp °C | 24 | 22 | 26 | 23 | 22 | 23 | 22 | 21 | 21 | 21 | 20 | 22 | 22 | 19 | 20 | 20 | 19 | 20 | 20 | 18 |
Feels °C | 26 | 24 | 29 | 25 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 24 | 23 | 19 | 20 | 20 | 19 | 20 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 10 | S 10 | S 9 | S 9 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 | SE 8 | S 8 | S 10 | S 9 | S 11 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 29 | 125 | 90 | 83 | 56 | 21 | 48 | 45 | 37 | 78 | 184 | 118 | 118 | 234 | 490 | 263 | 595 | 492 | 463 | 419 |
Swell 2 Height (m) Direction Period (s) | S 10 | ESE 8 | SE 7 | E 4 | E 4 | SSE 8 | E 4 | E 6 | E 7 | E 7 | E 7 | SSW 6 | SSW 7 | SE 8 | ESE 8 | SE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 |
| kJ | 54 | 22 | 8 | 9 | 3 | 24 | 1 | 7 | 22 | 8 | 4 | 28 | 47 | 70 | 47 | 39 | 67 | 32 | 33 | 20 |
Swell 3 Height (m) Direction Period (s) | SE 5 | ENE 7 | E 7 | E 7 | E 7 | E 4 | E 7 | — | SSW 7 | — | — | E 7 | E 7 | E 7 | SE 10 | ESE 8 | NE 9 | S 10 | E 8 | E 8 |
| kJ | 6 | 17 | 9 | 9 | 4 | 5 | 4 | — | 4 | — | — | 4 | 4 | 4 | 27 | 26 | 3 | 18 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | E 7 | — | NNE 3 | — | NNW 3 | — | WSW 3 | — | — | — | S 4 | — | — | — | — | — | — | — | — | — |
| kJ | 27 | — | 7 | — | 3 | — | 2 | — | — | — | 10 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 78 | 0 | 0 | 18 | 8 | 137 | 361 | 11 | 18 | 18 | 8 | 18 | 18 | 0 | 18 | 18 | 11 | 27 | 27 | 11 |
Best forecast wave conditions in São Paulo | ||||||||||||||||||||
Best forecast wave conditions in Brazil | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Praia do Guaeca surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Praia do Guaeca Surf forecast
The above surf forecast table for Praia do Guaeca provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Praia do Guaeca can be found by selecting the local surf guide option on the grey menu. Our Praia do Guaeca 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 do Guaeca) 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 do Guaeca 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 do Guaeca is 9 km (6 miles) from Sao Sebastiao. If you plan a holiday in São Paulo, look for hotels and other accommodation in Sao Sebastiao. Sao Sebastiao has rooms for a wide range of budgets as well as car hire and transport links.
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