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
September experiences an average high-temperature of a still warm 29.4°C (84.9°F), barely different from August's 26.8°C (80.2°F). September nights bring a pronounced temperature shift, with averages hovering around a refreshing 17.2°C (63°F).Heat index
In September, the heat index is evaluated at a hot 32°C (89.6°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
The least humid month is September, with an average relative humidity of 61%.Rainfall
In João Ramalho, in September, it is raining for 9.6 days, with typically 44mm (1.73") of accumulated precipitation. In João Ramalho, Brazil, during the entire year, the rain falls for 183.1 days and collects up to 914mm (35.98") of precipitation.Daylight
In João Ramalho, the average length of the day in September is 11h and 59min.On the first day of the month, sunrise is at 06:32 and sunset at 18:13. On the last day of September, in João Ramalho, sunrise is at 06:03 and sunset at 18:21 -03.
Sunshine
The average sunshine in September in João Ramalho is 9h.UV index
The months with the highest UV index are January through March, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Fend off overexposure. Sun protection is vital. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in João Ramalho in September?
What is the least humid month in João Ramalho?
What is the average humidity in September in João Ramalho?
How much does it rain in João Ramalho in September?
What is the average length of the day in September in João Ramalho?
When is the sunrise / sunset in September in João Ramalho?
How many hours of sunshine does João Ramalho have in September?
When is the highest UV index in João Ramalho?
What is the UV index intensity in September in João Ramalho?
Average temperature in September
João Ramalho, Brazil
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is October (29.7°C).
The month with the lowest average high temperature is June (23.2°C).
- Average low temperature in September: 17.2°C
The month with the highest average low temperature is February (20.2°C).
The coldest months (with the lowest average low temperature) are June and July (14.3°C).
Average pressure in September
João Ramalho, Brazil
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is July (1018.4mbar).
The month with the lowest atmospheric pressure is December (1010.2mbar).
Average wind speed in September
João Ramalho, Brazil
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is August (11.3km/h).
The calmest month (with the lowest average wind speed) is February (8.2km/h).
Average humidity in September
João Ramalho, Brazil
- Average humidity in September: 61%
The months with the highest relative humidity are January, February and March (86%).
The month with the lowest relative humidity is September (61%).
Average rainfall in September
João Ramalho, Brazil
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is January (151mm).
The driest month (with the least rainfall) is July (31mm).
Average rainfall days in September
João Ramalho, Brazil
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is January (25 days).
The month with the least rainy days is August (5.4 days).
Average daylight in September /
Average sunshine in September
João Ramalho, 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: 9h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
João Ramalho, Brazil
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is February (4.7 days).
Average UV index in September
João Ramalho, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 5).
Average cloud cover in September
João Ramalho, Brazil
- Average cloud cover in September: 23
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
João Ramalho, Brazil
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March and May (7km).
