September weather forecastFirminópolis, Brazil
September
Weather in September
The first month of the spring, September, is also a hot month in Firminópolis, Brazil, with temperature in the range of an average low of 21°C (69.8°F) and an average high of 34.1°C (93.4°F).Temperature
September is the warmest month, exhibiting average temperatures of 34.1°C (93.4°F) at the peak and 21°C (69.8°F) at the base.Heat index
During September, the heat index is computed to be a fiery hot 36°C (96.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The average relative humidity in September in Firminópolis is 40%.Rainfall
In Firminópolis, in September, during 6.1 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, there are 205.3 rainfall days, and 1139mm (44.84") of precipitation is accumulated.Daylight
The average length of the day in September in Firminópolis, Brazil, is 12h and 1min.On the first day of the month, sunrise is at 06:26 and sunset at 18:15. On the last day of September, in Firminópolis, sunrise is at 06:03 and sunset at 18:18 -03.
Sunshine
In September, the average sunshine in Firminópolis is 9.7h.UV index
August and September, with an average maximum UV index of 7, are months with the highest UV index in Firminópolis. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 7 suggests this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Firminópolis, Brazil
- Average high temperature in September: 34.1°C
The warmest month (with the highest average high temperature) is September (34.1°C).
The month with the lowest average high temperature is May (27.1°C).
- Average low temperature in September: 21°C
The month with the highest average low temperature is September (21°C).
The coldest months (with the lowest average low temperature) are June and July (16.6°C).
Average pressure in September
Firminópolis, Brazil
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is July (1016.6mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Firminópolis, Brazil
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is August (8.9km/h).
The calmest month (with the lowest average wind speed) is March (5.3km/h).
Average humidity in September
Firminópolis, Brazil
- Average humidity in September: 40%
The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Firminópolis, Brazil
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is December (199mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Firminópolis, Brazil
- Average rainfall days in September: 6.1 days
The month with the highest number of rainy days is December (29.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight in September /
Average sunshine in September
Firminópolis, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in September: 9h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Firminópolis, Brazil
- Average sunshine days in September: 22.8 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is February (0.9 days).
Average UV index in September
Firminópolis, Brazil
- Average UV index in September: 7
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are February and March (UV index 5).
Average cloud cover in September
Firminópolis, Brazil
- Average cloud cover in September: 16
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 11).
Average visibility in September
Firminópolis, Brazil
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April and December (7km).
