Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With the advent of September, Ribeirão dos Índios experiences an average high-temperature of a hot 30.8°C (87.4°F), mirroring a close resemblance to the previous month. A steep decline to a comfortable 18.6°C (65.5°F) characterizes the September nights.Heat index
The heat index in September is computed to be a tropical 34°C (93.2°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 58%.Rainfall
In Ribeirão dos Índios, Brazil, during September, the rain falls for 10.5 days and regularly aggregates up to 51mm (2.01") of precipitation. In Ribeirão dos Índios, during the entire year, the rain falls for 190.4 days and collects up to 1184mm (46.61") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:35 and sunset at 18:17. On the last day of September, sunrise is at 06:07 and sunset at 18:24 -03.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Ribeirão dos Índios, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: An average UV index of 6 in September transforms into this advice:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What are the least humid months?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Ribeirão dos Índios, Brazil
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The month with the lowest average high temperature is June (24.7°C).
- Average low temperature in September: 18.6°C
The month with the highest average low temperature is January (21.8°C).
The coldest months (with the lowest average low temperature) are June and July (15.6°C).
Average pressure in September
Ribeirão dos Índios, Brazil
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is December (1009.4mbar).
Average wind speed in September
Ribeirão dos Índios, Brazil
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is August (10.7km/h).
The calmest months (with the lowest average wind speed) are February and March (7.3km/h).
Average humidity in September
Ribeirão dos Índios, Brazil
- Average humidity in September: 58%
The month with the highest relative humidity is March (84%).
The months with the lowest relative humidity are August and September (58%).
Average rainfall in September
Ribeirão dos Índios, Brazil
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is January (211mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Ribeirão dos Índios, Brazil
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is January (26.7 days).
The month with the least rainy days is August (5.8 days).
Average daylight in September /
Average sunshine in September
Ribeirão dos Índios, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days in September
Ribeirão dos Índios, Brazil
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (3.4 days).
Average UV index in September
Ribeirão dos Índios, Brazil
- Average UV index in September: 6
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is May (UV index 5).
Average cloud cover in September
Ribeirão dos Índios, Brazil
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Ribeirão dos Índios, Brazil
- Average visibility in September: 10km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April and May (8km).
