September weather forecastBarra Mansa, Brazil
September
Weather in September
The first month of the spring, September, is also a moderately hot month in Barra Mansa, Brazil, with an average temperature ranging between min 15.5°C (59.9°F) and max 27°C (80.6°F).Temperature
In September, Barra Mansa experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 25.2°C (77.4°F) in August to a still warm 27°C (80.6°F). In the month of September, the nighttime temperature in Barra Mansa dips to a steady average of 15.5°C (59.9°F).Heat index
The heat index in September is appraised at 29°C (84.2°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
With an average relative humidity of 76%, September is the least humid month.Rainfall
In Barra Mansa, in September, during 14.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Barra Mansa, during the entire year, the rain falls for 217.8 days and collects up to 982mm (38.66") of precipitation.Daylight
The average length of the day in September in Barra Mansa is 11h and 59min.On the first day of September in Barra Mansa, Brazil, sunrise is at 06:06 and sunset at 17:46. On the last day of the month, sunrise is at 05:37 and sunset at 17:55 -03.
Sunshine
The average sunshine in September in Barra Mansa is 8.4h.UV index
The months with the lowest UV index are April through July, September and November, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barra Mansa, Brazil
- Average high temperature in September: 27°C
The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is June (23.6°C).
- Average low temperature in September: 15.5°C
The month with the highest average low temperature is January (19.4°C).
The coldest months (with the lowest average low temperature) are July and August (13.5°C).
Average pressure in September
Barra Mansa, Brazil
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).
Average wind speed in September
Barra Mansa, Brazil
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is September (6.4km/h).
The calmest months (with the lowest average wind speed) are March and April (4.9km/h).
Average humidity in September
Barra Mansa, Brazil
- Average humidity in September: 76%
The months with the highest relative humidity are March and April (87%).
The month with the lowest relative humidity is September (76%).
Average rainfall in September
Barra Mansa, Brazil
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is January (164mm).
The driest month (with the least rainfall) is June (20mm).
Average rainfall days in September
Barra Mansa, Brazil
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is December (26.4 days).
The month with the least rainy days is August (9.1 days).
Average daylight in September /
Average sunshine in September
Barra Mansa, 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: 8h and 24min
The month with the most sunshine is February (Average sunshine: 8h and 30min).
The month with the least sunshine is November (Average sunshine: 7h and 12min).
Average sunshine days in September
Barra Mansa, Brazil
- Average sunshine days in September: 11.7 days
The months with the most sunshine days are July and August (17.3 days).
The month with the least sunshine days is November (2.6 days).
Average UV index in September
Barra Mansa, Brazil
- Average UV index in September: 5
The months with the highest UV index are January, February, March, August, October and December (UV index 6).
The months with the lowest UV index are April, May, June, July, September and November (UV index 5).
Average cloud cover in September
Barra Mansa, Brazil
- Average cloud cover in September: 34
The month with the most cloud cover is November (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Barra Mansa, Brazil
- Average visibility in September: 8km
The months with the highest visibility are February, July, August, September and October (8km).
The month with the lowest visibility is April (6km).
