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 commencement of September notes an average high-temperature of a still warm 28.4°C (83.1°F), exhibiting little difference from the previous month. Brotas reports a marked divergence from daytime peaks throughout September, with lows averaging at a comfortable 16.4°C (61.5°F).Heat index
September's mean heat index is evaluated at a tropical 31°C (87.8°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Always consider that heat index estimations are for light winds and places in the shade. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The months with the lowest humidity in Brotas are August and September, with an average relative humidity of 64%.Rainfall
In Brotas, in September, during 11 rainfall days, 49mm (1.93") of precipitation is typically accumulated. Throughout the year, there are 225.9 rainfall days, and 1464mm (57.64") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 59min.On the first day of September in Brotas, Brazil, sunrise is at 06:21 and sunset at 18:02. On the last day of the month, sunrise is at 05:53 and sunset at 18:11 -03.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year in Brotas.UV index
The months with the lowest UV index in Brotas are January through July, September, November and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
How hot does it get in Brotas in September?
What is the least humid month in Brotas?
What is the average humidity in September in Brotas?
How much does it rain in Brotas in September?
What is the average length of the day in September in Brotas?
What time are sunrise and sunset in September in Brotas?
What month has the most sunshine in Brotas?
How long on average sun shines in September in Brotas?
When is the lowest UV index in Brotas?
What is the UV index intensity in September in Brotas?
Average temperature in September
Brotas, Brazil
- Average high temperature in September: 28.4°C
The warmest month (with the highest average high temperature) is October (28.8°C).
The month with the lowest average high temperature is June (22.6°C).
- Average low temperature in September: 16.4°C
The month with the highest average low temperature is December (19.5°C).
The coldest month (with the lowest average low temperature) is June (13.4°C).
Average pressure in September
Brotas, Brazil
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is July (1019.5mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).
Average wind speed in September
Brotas, Brazil
- Average wind speed in September: 10.2km/h
The windiest months (with the highest average wind speed) are September and October (10.2km/h).
The calmest month (with the lowest average wind speed) is February (7.4km/h).
Average humidity in September
Brotas, Brazil
- Average humidity in September: 64%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are August and September (64%).
Average rainfall in September
Brotas, Brazil
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is January (291mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in September
Brotas, Brazil
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is January (29.5 days).
The month with the least rainy days is August (5.7 days).
Average daylight in September /
Average sunshine in September
Brotas, 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 September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in September
Brotas, Brazil
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (0.6 days).
Average UV index in September
Brotas, Brazil
- Average UV index in September: 5
The months with the highest UV index are August and October (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, September, November and December (UV index 5).
Average cloud cover in September
Brotas, 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
Brotas, Brazil
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are March, April and May (7km).
Brotas, Brazil
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