Today's UV outlook for São Paulo
Today's forecast for São Paulo peaks at UV 6.3 around 11:00. The hourly outlook shows 4 hours at moderate or above (UV 3+), 1 hour at high or above (UV 6+). The live reading is UV 1.8 right now.
São Paulo sits at about 724 m elevation. Thinner air at altitude can add roughly 7% UV compared with sea level at the same latitude—cool mountain air is not a low-UV signal.
Peak UV reaches the high band today. Plan longer outdoor sessions earlier or later if you can, and use the calculator below to see how long unprotected skin may last at the current reading.
Compare with other cities in São Paulo, or read practical planning notes in the blog .