September weather forecastPasso, Brazil

September

Weather in September

September, the first month of the spring in Passo, is a warm month, with an average temperature ranging between min 13.4°C (56.1°F) and max 23.8°C (74.8°F).

Temperature

September's arrival brings an average high-temperature of a moderately hot 23.8°C (74.8°F), slightly deviating from August's 21.5°C (70.7°F). The average low-temperature of 13.4°C (56.1°F) is witnessed during September.

Humidity

The average relative humidity in September in Passo is 78%.

Rainfall

In September, the rain falls for 10.6 days. Throughout September, 62mm (2.44") of precipitation is accumulated. In Passo, during the entire year, the rain falls for 141.1 days and collects up to 970mm (38.19") of precipitation.

Daylight

In Passo, the average length of the day in September is 11h and 56min.
On the first day of September, sunrise is at 06:57 and sunset at 18:30. On the last day of the month, sunrise is at 06:23 and sunset at 18:44 -03.

Sunshine

In September, the average sunshine is 7.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Updated: Aug 27, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during September is 23.8°C (74.8°F) and the low-temperature is 13.4°C (56.1°F). In March, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is evaluated at 35°C (95°F).

In September, the average relative humidity is 78%.

In Passo, in September, during 10.6 rainfall days, 62mm (2.44") of precipitation is typically accumulated.

In Passo, the average day length in September is 11h and 56min.

In September, on the first day of the month, sunrise is at 06:57 and sunset at 18:30. On the last day of the month, in Passo, sunrise is at 06:23 and sunset at 18:44 -03.

In Passo, the average sunshine duration in September is 7.9h.

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

21.5°C

23.8°C

26.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.9km/h

12km/h

13km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

20.7

18.1

17.1

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Passo, Brazil

Average high temperature in September: 23.8°C

The warmest month (with the highest average high temperature) is January (32.3°C).
The month with the lowest average high temperature is July (18.6°C).

Average low temperature in September: 13.4°C

The month with the highest average low temperature is January (20.8°C).
The coldest month (with the lowest average low temperature) is July (10.2°C).

Average pressure in September
Passo, Brazil

Average pressure in September: 1015.2mbar

The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.2mbar).

Average wind speed in September
Passo, Brazil

Average wind speed in September: 11.6km/h

The windiest month (with the highest average wind speed) is August (12.1km/h).
The calmest month (with the lowest average wind speed) is April (9.3km/h).

Average humidity in September
Passo, Brazil

Average humidity in September: 78%

The month with the highest relative humidity is June (86%).
The months with the lowest relative humidity are January and December (69%).

Average rainfall in September
Passo, Brazil

Average rainfall in September: 62mm

The wettest month (with the highest rainfall) is October (116mm).
The driest month (with the least rainfall) is August (42mm).

Average rainfall days in September
Passo, Brazil

Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is January (14.9 days).
The month with the least rainy days is August (9.3 days).

Average daylight in September /
Average sunshine in September
Passo, Brazil

Average daylight in September: 11h and 54min

The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 18min).

Average sunshine in September: 7h and 54min

The months with the most sunshine are November and December (Average sunshine: 8h and 54min).
The month with the least sunshine is June (Average sunshine: 6h and 54min).

Average sunshine days in September
Passo, Brazil

Average sunshine days in September: 18.1 days

The month with the most sunshine days is August (20.7 days).
The month with the least sunshine days is February (14 days).

Average UV index in September
Passo, Brazil

Average UV index in September: 5

The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).

Average cloud cover in September
Passo, Brazil

Average cloud cover in September: 34

The month with the most cloud cover is May (Cloud cover 43).
The month with the least cloud cover is November (Cloud cover 25).

Average visibility in September
Passo, Brazil

Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, August, September, October, November and December (9km).
The months with the lowest visibility are May, June and July (8km).