Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With the onset of September, the average high-temperature stands at a still moderately hot 28°C (82.4°F), closely aligned with August's 27°C (80.6°F). An average nighttime temperature of 18.8°C (65.8°F) is witnessed throughout September.Heat index
In September, the heat index is evaluated at a hot 32°C (89.6°F). Enduring exposure and ongoing activity could cause a sense of fatigue and subsequent heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In September, the average relative humidity is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.7 days and typically collects 22mm (0.87") of precipitation.Daylight
The average length of the day in September is 12h and 2min.On the first day of September, sunrise is at 05:34 and sunset at 17:28. On the last day of the month, sunrise is at 05:15 and sunset at 17:27 -03.
Sunshine
The average sunshine in September is 6.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September in Cardeal da Silva?
How many hours of sunshine does Cardeal da Silva have in September?
What is the UV index reading in September?
Average temperature in September
Cardeal da Silva, Brazil
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (26.4°C).
- Average low temperature in September: 18.8°C
The month with the highest average low temperature is March (21.8°C).
The coldest month (with the lowest average low temperature) is August (18.1°C).
Average pressure in September
Cardeal da Silva, Brazil
- Average pressure in September: 1016.9mbar
The months with the highest atmospheric pressure are July and August (1018mbar).
The months with the lowest atmospheric pressure are March and December (1012.2mbar).
Average wind speed in September
Cardeal da Silva, Brazil
- Average wind speed in September: 9.5km/h
The windiest month (with the highest average wind speed) is November (9.7km/h).
The calmest month (with the lowest average wind speed) is April (7.6km/h).
Average humidity in September
Cardeal da Silva, Brazil
- Average humidity in September: 80%
The months with the highest relative humidity are May, June and July (86%).
The months with the lowest relative humidity are January, February and December (75%).
Average rainfall in September
Cardeal da Silva, Brazil
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is April (83mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in September
Cardeal da Silva, Brazil
- Average rainfall days in September: 16.7 days
The month with the highest number of rainy days is May (23.3 days).
The month with the least rainy days is November (14.7 days).
Average daylight in September /
Average sunshine in September
Cardeal da Silva, 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 24min).
- Average sunshine in September: 6h and 4min
The month with the most sunshine is January (Average sunshine: 9h and 36min).
The month with the least sunshine is May (Average sunshine: 5h and 24min).
Average sunshine days in September
Cardeal da Silva, Brazil
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is December (12.5 days).
The month with the least sunshine days is May (5.3 days).
Average UV index in September
Cardeal da Silva, Brazil
- Average UV index in September: 6
The months with the highest UV index are January, February, March and November (UV index 7).
The month with the lowest UV index is June (UV index 5).
Average cloud cover in September
Cardeal da Silva, Brazil
- Average cloud cover in September: 54
The month with the most cloud cover is May (Cloud cover 65).
The months with the least cloud cover are January, February and March (Cloud cover 46).
Average visibility in September
Cardeal da Silva, Brazil
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, November and December (8km).
The months with the lowest visibility are May, June, July and August (6km).
