September weather forecast
Paulistana, Brazil

September

Weather in September

The first month of the spring, September, is a tropical month in Paulistana, Brazil, with an average temperature fluctuating between 31.5°C (88.7°F) and 19.2°C (66.6°F).

Temperature

September reports an average high-temperature of a tropical 31.5°C (88.7°F), slightly varied from August's 29.3°C (84.7°F). Paulistana endures a clear shift from daytime heat to a mean low-temperature of 19.2°C (66.6°F) during September nights.

Heat index

The heat index value for September is evaluated at a tropical 34°C (93.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index values are typically calculated for conditions of shade and a light breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

The average relative humidity in September is 52%.

Rainfall

August and September are months with the least rain in Paulistana when the rain falls for 1.1 days and typically aggregates up to 1mm (0.04") of rain.

Daylight

In September, the average length of the day in Paulistana, Brazil, is 12h and 4min.
On the first day of the month, sunrise is at 05:45 and sunset at 17:43. On the last day of September, in Paulistana, sunrise is at 05:29 and sunset at 17:39 -03.

Sunshine

The average sunshine in September is 9.5h.

UV index

The months with the highest UV index are September through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.

Frequently asked questions

Is it hot in Paulistana during September?
During September, Paulistana experiences an average high-temperature of 31.5°C (88.7°F) and a low-temperature of 19.2°C (66.6°F). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is evaluated at 34°C (93.2°F).
What is the average humidity in September in Paulistana?
The average relative humidity in September is 52%.
What is the driest month in Paulistana?
The months with the least rainfall in Paulistana, Brazil, are August and September Rain falls for 1.1 days and accumulates 1mm (0.04") of rain.
How many days does it rain in September in Paulistana?
In Paulistana, Brazil, in September, it is raining for 1.1 days, with typically 1mm (0.04") of accumulated precipitation.
How many hours of daylight does Paulistana have in September?
In Paulistana, the average day length in September is 12h and 4min.
What time are sunrise and sunset in September in Paulistana?
In September, on the first day of the month, sunrise is at 05:45 and sunset at 17:43. On the last day of the month, sunrise is at 05:29 and sunset at 17:39 -03.
How long on average sun shines in September in Paulistana?
The average sunshine duration in September in Paulistana is 9.5h.
When is the highest UV index in Paulistana?
September through November, with an average maximum UV index of 7, are months with the highest UV index in Paulistana, Brazil.
What is the UV index intensity in September in Paulistana?
The average daily maximum UV index in September in Paulistana, Brazil, is 7. A UV Index reading of 6 to 7 represents a high health threat from 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
Paulistana, Brazil
  • Average high temperature in September: 31.5°C

The warmest month (with the highest average high temperature) is October (32.7°C).
The month with the lowest average high temperature is June (27.6°C).

  • Average low temperature in September: 19.2°C

The month with the highest average low temperature is November (21.9°C).
The coldest months (with the lowest average low temperature) are July and August (17.6°C).

Average pressure in September
Paulistana, Brazil
  • Average pressure in September: 1013.8mbar

The month with the highest atmospheric pressure is July (1015.6mbar).
The month with the lowest atmospheric pressure is November (1010mbar).

Average wind speed in September
Paulistana, Brazil
  • Average wind speed in September: 21km/h

The windiest month (with the highest average wind speed) is July (21.8km/h).
The calmest month (with the lowest average wind speed) is March (10.9km/h).

Average humidity in September
Paulistana, Brazil
  • Average humidity in September: 52%

The month with the highest relative humidity is April (77%).
The month with the lowest relative humidity is October (50%).

Average rainfall in September
Paulistana, Brazil
  • Average rainfall in September: 1mm

The wettest month (with the highest rainfall) is March (179mm).
The driest months (with the least rainfall) are August and September (1mm).

Average rainfall days in September
Paulistana, Brazil
  • Average rainfall days in September: 1.1 days

The month with the highest number of rainy days is March (26.4 days).
The month with the least rainy days is September (1.1 days).

Average daylight in September /
Average sunshine in September
Paulistana, Brazil
  • Average daylight in September: 12h and 1min

The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is April (Average sunshine: 7h and 0min).

Average sunshine days in September
Paulistana, Brazil
  • Average sunshine days in September: 28.5 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is March (3.5 days).

Average UV index in September
Paulistana, Brazil
  • Average UV index in September: 7

The months with the highest UV index are September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August and December (UV index 6).

Average cloud cover in September
Paulistana, Brazil
  • Average cloud cover in September: 17

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 17).

Average visibility in September
Paulistana, Brazil
  • Average visibility in September: 10km

The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April and May (9km).

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