When to go · Rio de Janeiro
Rio de Janeiro in September
Great month. Warming up; spring showers begin.
Key facts
- Verdict
- Great
- Temperature
- 25°C (77°F)77°F (25°C) / 20°C (68°F)68°F (20°C)
- average high / low
- Rain days
- 9
- Crowds
- Medium
- Brazil overall
- Prices
- Medium
- Brazil overall
Verdict
Warming up; spring showers begin.
All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.
Is another month better than September?
No other month rates higher than September for Rio de Janeiro in this guide.
Weather in September
- Rio de JaneiroHighs around 25 °C (77 °F), lows around 20 °C (68 °F), rain on about 9 daysHighs around 77 °F (25 °C), lows around 68 °F (20 °C), rain on about 9 days
- Rio and the Southeast coast, Brazil · Rio de Janeiro, Paraty, Ilha Grande, São Paulobest weather
Hot, humid summers with heavy downpours and floods (December–March); dry, sunny, 20–26 °C (68–79 °F) winters are the sightseeing season. São Paulo is cooler and rainier.Hot, humid summers with heavy downpours and floods (December–March); dry, sunny, 68–79 °F (20–26 °C) winters are the sightseeing season. São Paulo is cooler and rainier.
Dry and mild season
Clear mornings and cool evenings; the best months for viewpoints.
Watch: Cool sea, some windy days and school-holiday crowds in July.
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Independence Day
7 September · Nationwide
Public holiday; parades and full beaches.
Crowds and prices
- Crowds · Brazil overall
- Medium
- Prices · Brazil overall
- Medium
Brazil overall: Good across most regions; fire smoke possible in the Pantanal and Amazon; Rock in Rio in some years.
Compare two months
Weather, crowds and prices for any two months in Rio de Janeiro, side by side.
Verdict
Sep: Great
Apr: Great
Daytime high
Sep: 25 °C (77 °F)77 °F (25 °C)
Apr: 28 °C (82 °F)82 °F (28 °C)
Night low
Sep: 20 °C (68 °F)68 °F (20 °C)
Apr: 22 °C (72 °F)72 °F (22 °C)
Rain days
Sep: 9 (better)
Apr: 10
Crowds
Sep: Medium
Apr: Medium
Prices
Sep: Medium
Apr: Medium
Festivals listed
Sep: 1
Apr: 2
September: Warming up; spring showers begin.
April: Heat eases; fewer crowds.
Rio de Janeiro: figures are long-term averages from this guide, not a forecast.
What to pack
Nothing unusual for the weather this month.