Rio de Janeiro September weather
Rio de Janeiro, Brazil · September
Balanced month before summer humidity ramps up
September warms up after winter while staying relatively comfortable. It’s often warm enough for beaches without peak-summer humidity.
Rain is usually moderate to low, making it easier to blend beaches, city routes, and viewpoints.
September averages at a glance
Average low
around 19–20°C
Average high
around 26–28°C
Average precipitation
around 40–80 mm
Precip days
about 5–8 days
What to wear in September in Rio de Janeiro
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Light outfit + sunscreen (recommended).
- • Optional thin layer for breezy evenings.
- • Comfortable walking shoes.
- • Optional small umbrella.
Travel tips for visiting Rio de Janeiro in September
- • Mornings often give better viewpoint visibility—go early if views matter.
- • Reapply sunscreen during long beach sessions.
- • Bring a layer if wind is forecast.
September weather in Rio de Janeiro — FAQ
Q. Is September peak season?
A. Not peak summer, but good weather can increase demand—plan key items ahead if needed.
Q. Is it basically dry?
A. Often relatively dry, but not guaranteed—showers can still happen.
Explore Rio de Janeiro
These pages are connected so you can compare conditions and decide for yourself.