Sao Joao Surf Break

Lat Long: 38.66° N 9.27° W

Sao Joao WaveFinder

Issued: 12 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Sao Joao sea temperature is
20.2°C
0.4° 

Sao Joao surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Sao Joao surf forecast from 2 Sep 2026:

  • Best quality surf: Wednesday 2 Sep, 10AM (local time) - 4ft (1.2m), 8s period, NNW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 4PM (local time) - 6.5ft (2.0m), 10s period, NNW swell with 688 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 10AM (local time) - 4ft (1.2m), 8s period with NNW swell.

Best Forecast Surf Conditions for Sao Joao this week:

The surf forecast for Sao Joao over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 02) at 10AM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Sao Joao in the next 16 days are 2.0m 10s and forecast to arrive on Tuesday (Sep 08) at 4PM. 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 3s period and expected on Saturday (Sep 05) at 4AM.

Wave TypeTime (WEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Wed 2nd Sep)4ft (1.2m) 8s
Best Surf10AM (Wed 2nd Sep)4ft (1.2m) 8s
Most Powerful 4PM (Tue 8th Sep)6.5ft (2.0m) 10s

Table - best surf conditions forecast for Sao Joao over the next 16 days.


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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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