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The weather in September in Manaus

It's hot in September in Manaus with an average temperature of 34°C. Temperatures this month range from a low of 33°C to a high of 35°C. At night, you can expect temperatures between 25°C and 26°C.

September is a good month to be in Manaus for sunny weather. You’ll have high temperatures and not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Manaus, Brazil. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 38°C in 2023, Manaus reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 26°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 22°C to a highest value of 28°C.

Rainfall amount

In September, there is an average of 34 mm of precipitation, spread over 5 days. The wind speed is around 3 Bft, mostly coming from the Southeast.

Daily weather in September for Manaus

Click on any day in September to get detailed info about the usual weather on that day in Manaus. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Manaus New York
Average temperature 34°C 27°C
Max. temperature 35°C 31°C
Min. temperature 25°C -5°C
Total precipitation 34 mm 57 mm
Rainy days 5 days 9 days

Start of September

The month of September starts in Manaus with hot temps, averaging around 34°C during the day and nights around 26°C.

Mid September

By mid-September, daytime temps stay steady at around 34°C, with nights around 26°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of September

By the end of September, the average daytime temperature in Manaus is around 35°C, while nighttime temps are about 26°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Manaus

UV index

The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Manaus for all months and discover the best travel time

Curious about the weather in other parts of Brazil? Check out the climate and weather for spots like Rio de Janeiro, Salvador, Pipa, or explore other destinations in Brazil.

Temperature charts

These charts show the average temperatures in September in Manaus, Brazil. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Manaus

Temperature in September in Manaus over the years

Precipitation charts

These charts show the average amount of precipitation in September in Manaus, Brazil. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Manaus

Total precipitation in September in Manaus over the years

Daily UV index in September in Manaus

This chart shows the average daily UV index in September in Manaus, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Manaus

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Average weather in Manaus by month

Click on a month below to see detailed weather info for Manaus. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.