September weather forecastValente, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Valente, Brazil, with an average temperature varying between 18.4°C (65.1°F) and 29.3°C (84.7°F).Temperature
In September, Valente experiences a minor shift in meteorological conditions with average high-temperatures marked at a still warm 29.3°C (84.7°F), closely mirroring the climate in August. During the month of September, Valente experiences a steady low-temperature average of 18.4°C (65.1°F).Heat index
In September, the heat index is calculated to be a hot 34°C (93.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In September, the average relative humidity in Valente is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 10mm (0.39") of precipitation.Daylight
In September, the average length of the day in Valente, Brazil, is 12h and 2min.On the first day of the month, sunrise is at 05:40 and sunset at 17:34. On the last day of September, in Valente, sunrise is at 05:21 and sunset at 17:33 -03.
Sunshine
In Valente, the average sunshine in September is 6.3h.UV index
The average daily maximum UV index in September in Valente is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valente, Brazil
- Average high temperature in September: 29.3°C
The warmest month (with the highest average high temperature) is February (32.4°C).
The month with the lowest average high temperature is July (26.8°C).
- Average low temperature in September: 18.4°C
The months with the highest average low temperature are February and March (21.8°C).
The coldest month (with the lowest average low temperature) is August (17.6°C).
Average pressure in September
Valente, Brazil
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The months with the lowest atmospheric pressure are March, November and December (1012.3mbar).
Average wind speed in September
Valente, Brazil
- Average wind speed in September: 15.6km/h
The windiest month (with the highest average wind speed) is October (15.7km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).
Average humidity in September
Valente, Brazil
- Average humidity in September: 73%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is November (68%).
Average rainfall in September
Valente, Brazil
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is March (53mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Valente, Brazil
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is April (18.1 days).
The month with the least rainy days is September (11.6 days).
Average daylight in September /
Average sunshine in September
Valente, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is January (Average sunshine: 9h and 12min).
The month with the least sunshine is June (Average sunshine: 4h and 24min).
Average sunshine days in September
Valente, Brazil
- Average sunshine days in September: 12.9 days
The month with the most sunshine days is December (14.6 days).
The month with the least sunshine days is April (9.6 days).
Average UV index in September
Valente, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, November and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 5).
Average cloud cover in September
Valente, Brazil
- Average cloud cover in September: 51
The months with the most cloud cover are May and June (Cloud cover 66).
The months with the least cloud cover are February, March and December (Cloud cover 44).
Average visibility in September
Valente, Brazil
- Average visibility in September: 9km
The month with the highest visibility is November (10km).
The months with the lowest visibility are April, May, June, July and August (8km).





