September weather forecastFloraí, Brazil
September
Weather in September
September, the first month of the spring in Floraí, is still a warm month, with an average temperature ranging between max 29°C (84.2°F) and min 17°C (62.6°F).Temperature
With the onset of September, the average high-temperature stands at a still moderately hot 29°C (84.2°F), closely aligned with August's 26.1°C (79°F). A dramatic downturn marks the September nights, with lows averaging at an enjoyable 17°C (62.6°F).Heat index
Throughout September, the heat index is computed to be a tropical 32°C (89.6°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Heat index determinations are made taking into account the shade and light air movements. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. 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 are of high significance for children. 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 66%, September is the least humid month.Rainfall
In September, the rain falls for 9.5 days. Throughout September, 45mm (1.77") of precipitation is accumulated. Throughout the year, there are 188.5 rainfall days, and 1243mm (48.94") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 58min.On the first day of September, sunrise is at 06:39 and sunset at 18:18. On the last day of the month, sunrise is at 06:09 and sunset at 18:28 -03.
Sunshine
In September, the average sunshine is 8.8h.UV index
The months with the highest UV index in Floraí are January through March, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 6 as the daily maximum UV index converts into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Floraí, Brazil
- Average high temperature in September: 29°C
The warmest months (with the highest average high temperature) are October and November (30°C).
The month with the lowest average high temperature is June (22.8°C).
- Average low temperature in September: 17°C
The months with the highest average low temperature are January and February (20.8°C).
The coldest month (with the lowest average low temperature) is July (14.2°C).
Average pressure in September
Floraí, Brazil
- Average pressure in September: 1014.3mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in September
Floraí, Brazil
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is August (11km/h).
The calmest months (with the lowest average wind speed) are February and March (7.7km/h).
Average humidity in September
Floraí, Brazil
- Average humidity in September: 66%
The months with the highest relative humidity are May and June (86%).
The month with the lowest relative humidity is September (66%).
Average rainfall in September
Floraí, Brazil
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is January (208mm).
The driest month (with the least rainfall) is July (41mm).
Average rainfall days in September
Floraí, Brazil
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is January (26.1 days).
The month with the least rainy days is August (6.8 days).
Average daylight in September /
Average sunshine in September
Floraí, 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 42min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
Floraí, Brazil
- Average sunshine days in September: 19.1 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is January (3.8 days).
Average UV index in September
Floraí, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June and July (UV index 5).
Average cloud cover in September
Floraí, Brazil
- Average cloud cover in September: 24
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Floraí, Brazil
- Average visibility in September: 9km
The months with the highest visibility are July, August, September, October and November (9km).
The months with the lowest visibility are January, May and June (7km).
