September weather forecast
Ribeirão Pires, Brazil

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Weather in September

The first month of the spring, September, is a warm month in Ribeirão Pires, Brazil, with temperature in the range of an average low of 16.2°C (61.2°F) and an average high of 24.1°C (75.4°F).

Temperature

Ribeirão Pires's September average high-temperature settles at a warm 24.1°C (75.4°F), showing a near match with the preceding month. Throughout the month of September, Ribeirão Pires witnesses an average temperature of 16.2°C (61.2°F).

Humidity

The average relative humidity in September in Ribeirão Pires, Brazil, is 77%.

Rainfall

In Ribeirão Pires, in September, it is raining for 14 days, with typically 47mm (1.85") of accumulated precipitation. Throughout the year, in Ribeirão Pires, there are 222.1 rainfall days, and 1113mm (43.82") of precipitation is accumulated.

Daylight

In September, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 06:15 and sunset at 17:55. On the last day of September, sunrise is at 05:46 and sunset at 18:04 -03.

Sunshine

The month with the most sunshine is September, with an average of 7.9h of sunshine.

UV index

The months with the lowest UV index in Ribeirão Pires are February, April through September, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 2, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What are September temperatures in Ribeirão Pires?

The high-temperature, in September, in Ribeirão Pires, is 24.1°C (75.4°F), while the low-temperature averages to 16.2°C (61.2°F). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in February is calculated to be 31°C (87.8°F).

What is the average humidity in September in Ribeirão Pires?

The average relative humidity in September is 77%.

How many days does it rain in September in Ribeirão Pires?

In Ribeirão Pires, in September, during 14 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

What is the average length of the day in September in Ribeirão Pires?

In September, the average day length is 11h and 58min.

When are sunrise and sunset in September in Ribeirão Pires?

In September, on the first day of the month, sunrise is at 06:15 and sunset at 17:55. On the last day of the month, in Ribeirão Pires, Brazil, sunrise is at 05:46 and sunset at 18:04 -03.

What month has the most sunshine in Ribeirão Pires?

The month with the most sunshine in Ribeirão Pires is September, with an average of 7.9h of sunshine.

How many hours of sunshine does Ribeirão Pires have in September?

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

What are the months with the lowest UV index in Ribeirão Pires?

February, April through September, with an average maximum UV index of 5, are months with the lowest UV index in Ribeirão Pires.

What is the UV index reading in September in Ribeirão Pires?

In Ribeirão Pires, Brazil, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.

Average temperature in September
Ribeirão Pires, Brazil

Average temperature in September - Ribeirão Pires, Brazil
  • Average high temperature in September: 24.1°C

The warmest month (with the highest average high temperature) is February (27.3°C).
The month with the lowest average high temperature is June (21.4°C).

  • Average low temperature in September: 16.2°C

The months with the highest average low temperature are January and February (20.3°C).
The coldest months (with the lowest average low temperature) are July and August (14.6°C).

Average pressure in September
Ribeirão Pires, Brazil

Average pressure in September - Ribeirão Pires, Brazil
  • Average pressure in September: 1017.3mbar

The month with the highest atmospheric pressure is July (1020.2mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).

Average wind speed in September
Ribeirão Pires, Brazil

Average wind speed in September - Ribeirão Pires, Brazil
  • Average wind speed in September: 9.5km/h

The windiest month (with the highest average wind speed) is November (10km/h).
The calmest month (with the lowest average wind speed) is February (8km/h).

Average humidity in September
Ribeirão Pires, Brazil

Average humidity in September - Ribeirão Pires, Brazil
  • Average humidity in September: 77%

The months with the highest relative humidity are March, April and November (84%).
The month with the lowest relative humidity is August (76%).

Average rainfall in September
Ribeirão Pires, Brazil

Average rainfall in September - Ribeirão Pires, Brazil
  • Average rainfall in September: 47mm

The wettest month (with the highest rainfall) is January (218mm).
The driest month (with the least rainfall) is August (33mm).

Average rainfall days in September
Ribeirão Pires, Brazil

Average rainfall days in September - Ribeirão Pires, Brazil
  • Average rainfall days in September: 14 days

The month with the highest number of rainy days is January (27.6 days).
The month with the least rainy days is August (9.8 days).

Average daylight in September /
Average sunshine in September
Ribeirão Pires, Brazil

Average daylight in September / Average sunshine in September - Ribeirão Pires, Brazil
  • Average daylight in September: 12h and 0min

The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).

  • Average sunshine in September: 7h and 5min

The month with the most sunshine is September (Average sunshine: 7h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).

Average sunshine days in September
Ribeirão Pires, Brazil

Average sunshine days in September - Ribeirão Pires, Brazil
  • Average sunshine days in September: 13.6 days

The month with the most sunshine days is August (19.2 days).
The month with the least sunshine days is January (2.1 days).

Average UV index in September
Ribeirão Pires, Brazil

Average UV index in September - Ribeirão Pires, Brazil
  • Average UV index in September: 5

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

Average cloud cover in September
Ribeirão Pires, Brazil

Average cloud cover in September - Ribeirão Pires, Brazil
  • Average cloud cover in September: 39

The month with the most cloud cover is November (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Ribeirão Pires, Brazil

Average visibility in September - Ribeirão Pires, Brazil
  • Average visibility in September: 9km

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

Ribeirão Pires, Brazil

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