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
Weather in September
Temperature
The start of September sees the average high-temperature at a still moderately hot 29.2°C (84.6°F), showing little difference from August's 26.8°C (80.2°F). A sharp divergence from daytime highs is noted during the month of September, with the average nighttime temperature settling at a comfortable 16.6°C (61.9°F).Heat index
The average heat index in September is evaluated at a tropical 32°C (89.6°F). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
August and September, with an average relative humidity of 63%, are the least humid months in Presidente Alves.Rainfall
In Presidente Alves, in September, during 10.5 rainfall days, 48mm (1.89") of precipitation is typically accumulated. In Presidente Alves, Brazil, during the entire year, the rain falls for 214.4 days and collects up to 1285mm (50.59") of precipitation.Daylight
The average length of the day in September is 11h and 59min.On the first day of September, sunrise is at 06:26 and sunset at 18:08. On the last day of the month, sunrise is at 05:58 and sunset at 18:16 -03.
Sunshine
In September, the average sunshine is 9.2h.UV index
The months with the lowest UV index are April through July, September, November and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
How hot is it in Presidente Alves in September?
What are the least humid months in Presidente Alves?
What is the average humidity in September in Presidente Alves?
How much does it rain in Presidente Alves in September?
How many hours of daylight does Presidente Alves have in September?
When is the sunrise / sunset in September in Presidente Alves?
How many hours of sunshine does Presidente Alves have in September?
What are the months with the lowest UV index in Presidente Alves?
How high is the UV index in September in Presidente Alves?
Average temperature in September
Presidente Alves, Brazil
- Average high temperature in September: 29.2°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 (23.3°C).
- Average low temperature in September: 16.6°C
The month with the highest average low temperature is January (20.1°C).
The coldest month (with the lowest average low temperature) is June (14°C).
Average pressure in September
Presidente Alves, Brazil
- Average pressure in September: 1014.8mbar
The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1010.5mbar).
Average wind speed in September
Presidente Alves, Brazil
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is September (10.4km/h).
The calmest month (with the lowest average wind speed) is February (7.4km/h).
Average humidity in September
Presidente Alves, Brazil
- Average humidity in September: 63%
The months with the highest relative humidity are February and March (86%).
The months with the lowest relative humidity are August and September (63%).
Average rainfall in September
Presidente Alves, Brazil
- Average rainfall in September: 48mm
The wettest month (with the highest rainfall) is January (233mm).
The driest month (with the least rainfall) is August (22mm).
Average rainfall days in September
Presidente Alves, Brazil
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is January (28.9 days).
The month with the least rainy days is August (5.4 days).
Average daylight in September /
Average sunshine in September
Presidente Alves, 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 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 0min).
Average sunshine days in September
Presidente Alves, Brazil
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in September
Presidente Alves, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, August and October (UV index 6).
The months with the lowest UV index are April, May, June, July, September, November and December (UV index 5).
Average cloud cover in September
Presidente Alves, Brazil
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in September
Presidente Alves, Brazil
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are March and May (7km).
Presidente Alves, Brazil
Weather forecast for your location
2. Allow the app to use your location
