Sao Paulo September weather
Sao Paulo, Brazil · September
A transition month: layers + umbrella keep you flexible
September starts spring and temperatures rise. Days can feel pleasantly warm, while evenings may still be cool enough for a light layer.
Rain can increase compared to winter, sometimes as sudden showers. Keeping an umbrella handy helps you adapt without losing momentum.
September averages at a glance
Average low
around 14–16°C
Average high
around 24–26°C
Average precipitation
around 60–110 mm
Precip days
about 6–10 days
What to wear in September in Sao Paulo
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Light outfit + thin layer for evenings.
- • Small umbrella (recommended).
- • Comfortable shoes.
- • Sunscreen (recommended).
Travel tips for visiting Sao Paulo in September
- • Transition months can swing quickly—layers beat guessing.
- • Add buffer time for moves on rainy days.
- • Warmer weather boosts walking satisfaction across neighborhoods.
September weather in Sao Paulo — FAQ
Q. Is September hot?
A. Usually warm rather than hot—often a comfortable shoulder month.
Q. Is September the start of rainy season?
A. It’s a lead-in; the wettest period is typically Dec–Mar, but showers can ramp up.
Explore Sao Paulo
These pages are connected so you can compare conditions and decide for yourself.