September weather forecastCeilândia, Brazil
September
Weather in September
The first month of the spring, September, is a tropical month in Ceilândia, Brazil, with an average temperature varying between 18.4°C (65.1°F) and 30.4°C (86.7°F).Temperature
Ceilândia's warmest month, September, generally records average temperatures ranging from a high of 30.4°C (86.7°F) to a low of 18.4°C (65.1°F).Heat index
Throughout September, the heat index is computed to be a hot 31°C (87.8°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The least humid month is September, with an average relative humidity of 45%.Rainfall
In Ceilândia, in September, it is raining for 7.8 days, with typically 19mm (0.75") of accumulated precipitation. In Ceilândia, during the entire year, the rain falls for 191.9 days and collects up to 1159mm (45.63") of precipitation.Daylight
In September, the average length of the day is 12h and 1min.On the first day of September, sunrise is at 06:17 and sunset at 18:06. On the last day of the month, sunrise is at 05:55 and sunset at 18:09 -03.
Sunshine
In Ceilândia, Brazil, the average sunshine in September is 9.7h.UV index
January, March, August through November, with an average maximum UV index of 6, are months with the highest UV index in Ceilândia. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ceilândia, Brazil
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is September (30.4°C).
The month with the lowest average high temperature is June (24.6°C).
- Average low temperature in September: 18.4°C
The month with the highest average low temperature is October (19.5°C).
The coldest month (with the lowest average low temperature) is July (14.6°C).
Average pressure in September
Ceilândia, Brazil
- Average pressure in September: 1014.7mbar
The month with the highest atmospheric pressure is July (1018.3mbar).
The month with the lowest atmospheric pressure is November (1011.6mbar).
Average wind speed in September
Ceilândia, Brazil
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is August (10.3km/h).
The calmest month (with the lowest average wind speed) is March (7km/h).
Average humidity in September
Ceilândia, Brazil
- Average humidity in September: 45%
The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is September (45%).
Average rainfall in September
Ceilândia, Brazil
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (254mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in September
Ceilândia, Brazil
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is December (27.5 days).
The month with the least rainy days is July (1.8 days).
Average daylight in September /
Average sunshine in September
Ceilândia, 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 month with the most sunshine is August (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 7h and 30min).
Average sunshine days in September
Ceilândia, Brazil
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is July (29.2 days).
The month with the least sunshine days is November (2 days).
Average UV index in September
Ceilândia, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, March, August, September, October and November (UV index 6).
The months with the lowest UV index are February, April, May, June, July and December (UV index 5).
Average cloud cover in September
Ceilândia, Brazil
- Average cloud cover in September: 15
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Ceilândia, Brazil
- Average visibility in September: 10km
The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March and April (7km).
