September weather forecast
São José do Barreiro, Brazil

September

Weather in September

The first month of the spring, September, is still a warm month in São José do Barreiro, Brazil, with an average temperature fluctuating between 14.2°C (57.6°F) and 26.2°C (79.2°F).

Temperature

With the advent of September, São José do Barreiro's high-temperatures adjust to a still moderately hot 26.2°C (79.2°F), closely aligning with the preceding month. São José do Barreiro's average low-temperature for the month of September denotes a significant decline from the daily high, recording at a mild 14.2°C (57.6°F).

Humidity

The least humid month is September, with an average relative humidity of 75%.

Rainfall

In September, the rain falls for 14.5 days. Throughout September, 35mm (1.38") of precipitation is accumulated. Throughout the year, in São José do Barreiro, there are 201.8 rainfall days, and 847mm (33.35") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 59min.
On the first day of September, sunrise is at 06:07 and sunset at 17:48. On the last day of the month, sunrise is at 05:39 and sunset at 17:57 -03.

Sunshine

September has the most sunshine of the year, with an average of 8.6h of sunshine.

UV index

The months with the lowest UV index in São José do Barreiro are March through September and November, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.

Frequently asked questions

What is the temperature in September in São José do Barreiro?
During September, São José do Barreiro experiences an average high-temperature of 26.2°C (79.2°F) and a low-temperature of 14.2°C (57.6°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in February is evaluated at 33°C (91.4°F).
What is the least humid month in São José do Barreiro?
September is the least humid month, with an average relative humidity of 75%.
What is the average humidity in September in São José do Barreiro?
The average relative humidity in September in São José do Barreiro is 75%.
How much does it rain in São José do Barreiro in September?
In São José do Barreiro, Brazil, in September, during 14.5 rainfall days, 35mm (1.38") of precipitation is typically accumulated.
How many hours of daylight does São José do Barreiro have in September?
In September, the average day length in São José do Barreiro, Brazil, is 11h and 59min.
When is the sunrise / sunset in September in São José do Barreiro?
On the first day of September in São José do Barreiro, Brazil, sunrise is at 06:07 and sunset at 17:48. On the last day of the month, sunrise is at 05:39 and sunset at 17:57 -03.
What month has the most sunshine in São José do Barreiro?
The month with the most sunshine is September, with an average of 8.6h of sunshine.
How many hours of sunshine does São José do Barreiro have in September?
In September, the average sunshine duration is 8.6h.
What are the months with the lowest UV index in São José do Barreiro?
March through September and November, with an average maximum UV index of 5, are months with the lowest UV index.
What is the UV index intensity in September in São José do Barreiro?
The average daily maximum UV index in September in São José do Barreiro is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - São José do Barreiro, Brazil
Average temperature in September
São José do Barreiro, Brazil
  • Average high temperature in September: 26.2°C

The warmest month (with the highest average high temperature) is February (28.1°C).
The month with the lowest average high temperature is June (22.3°C).

  • Average low temperature in September: 14.2°C

The month with the highest average low temperature is January (17.6°C).
The coldest month (with the lowest average low temperature) is July (11.2°C).

Average pressure in September - São José do Barreiro, Brazil
Average pressure in September
São José do Barreiro, Brazil
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is December (1012.5mbar).

Average wind speed in September - São José do Barreiro, Brazil
Average wind speed in September
São José do Barreiro, Brazil
  • Average wind speed in September: 6.3km/h

The windiest months (with the highest average wind speed) are September and October (6.3km/h).
The calmest months (with the lowest average wind speed) are February and March (5km/h).

Average humidity in September - São José do Barreiro, Brazil
Average humidity in September
São José do Barreiro, Brazil
  • Average humidity in September: 75%

The months with the highest relative humidity are March and April (87%).
The month with the lowest relative humidity is September (75%).

Average rainfall in September - São José do Barreiro, Brazil
Average rainfall in September
São José do Barreiro, Brazil
  • Average rainfall in September: 35mm

The wettest month (with the highest rainfall) is January (139mm).
The driest month (with the least rainfall) is June (21mm).

Average rainfall days in September - São José do Barreiro, Brazil
Average rainfall days in September
São José do Barreiro, Brazil
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is December (23.1 days).
The month with the least rainy days is August (10 days).

Average daylight in September / Average sunshine in September - São José do Barreiro, Brazil
Average daylight in September /
Average sunshine in September
São José do Barreiro, Brazil
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is September (Average sunshine: 8h and 36min).
The month with the least sunshine is November (Average sunshine: 7h and 18min).

Average sunshine days in September - São José do Barreiro, Brazil
Average sunshine days in September
São José do Barreiro, Brazil
  • Average sunshine days in September: 13 days

The month with the most sunshine days is August (18.8 days).
The month with the least sunshine days is November (5.8 days).

Average UV index in September - São José do Barreiro, Brazil
Average UV index in September
São José do Barreiro, Brazil
  • Average UV index in September: 5

The months with the highest UV index are January, February, October and December (UV index 6).
The months with the lowest UV index are March, April, May, June, July, August, September and November (UV index 5).

Average cloud cover in September - São José do Barreiro, Brazil
Average cloud cover in September
São José do Barreiro, Brazil
  • Average cloud cover in September: 34

The month with the most cloud cover is November (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in September - São José do Barreiro, Brazil
Average visibility in September
São José do Barreiro, Brazil
  • Average visibility in September: 8km

The months with the highest visibility are August and September (8km).
The months with the lowest visibility are March, April and May (6km).

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