BrazilThe weather in September in Fortaleza
It's hot in September in Fortaleza 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 24°C and 26°C.
September is a good month to be in Fortaleza 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 Fortaleza, 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 41°C in 2023, Fortaleza reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 31°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of 21°C to a highest value of 27°C.
Rainfall amount
According to weather history, there is only 7,4 mm of precipitation in September. The wind speed is around 4 Bft, mostly coming from the Northeast.
Daily weather in September for Fortaleza
Click on any day in September to get detailed info about the usual weather on that day in Fortaleza. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Fortaleza | New York | |
|---|---|---|
| Average temperature | 34°C | 27°C |
| Max. temperature | 35°C | 31°C |
| Min. temperature | 24°C | -5°C |
| Total precipitation | 7,4 mm | 57 mm |
| Rainy days | 2 days | 9 days |
Start of September
The month of September starts in Fortaleza with hot temps, averaging around 35°C during the day and nights around 25°C.
Mid September
By mid-September, daytime temps stay steady at around 35°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 Fortaleza is around 35°C, while nighttime temps are about 26°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
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UV index
The UV index is a maximum of 10 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 Fortaleza 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 Fortaleza, Brazil. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Fortaleza
Temperature in September in Fortaleza over the years
Precipitation charts
These charts show the average amount of precipitation in September in Fortaleza, 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 Fortaleza
Total precipitation in September in Fortaleza over the years
Daily UV index in September in Fortaleza
This chart shows the average daily UV index in September in Fortaleza, 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 Fortaleza
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Average weather in Fortaleza by month
Click on a month below to see detailed weather info for Fortaleza. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.