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
September's weather displays an average high-temperature of a still very hot 36.4°C (97.5°F), slightly varied from August's 35.1°C (95.2°F). Miguel Leão anticipates a pronounced temperature drop from daily highs during the nights of September, with an average low of 23.1°C (73.6°F).Heat index
In September, the heat index is estimated at a blisteringly hot 43°C (109.4°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
September is the least humid month in Miguel Leão, with an average relative humidity of 48%.Rainfall
The month with the least rainfall is September, when the rain falls for 5.7 days and typically collects 8mm (0.31") of precipitation.Daylight
In Miguel Leão, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:50 and sunset at 17:51. On the last day of September, sunrise is at 05:36 and sunset at 17:45 -03.
Sunshine
September has the most sunshine of the year in Miguel Leão, Brazil, with an average of 9.7h of sunshine.UV index
January, March through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the UV index of 7 transforms into the following advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the least humid month?
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?
What time are sunrise and sunset in September?
What month has the most sunshine?
How long on average sun shines in September?
What are the months with the highest UV index?
How high is the UV index in September in Miguel Leão?
Average temperature in September
Miguel Leão, Brazil
- Average high temperature in September: 36.4°C
The warmest month (with the highest average high temperature) is October (36.7°C).
The months with the lowest average high temperature are April and May (31.3°C).
- Average low temperature in September: 23.1°C
The months with the highest average low temperature are October and November (23.9°C).
The coldest months (with the lowest average low temperature) are July and August (22°C).
Average pressure in September
Miguel Leão, Brazil
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1008.7mbar).
Average wind speed in September
Miguel Leão, Brazil
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is July (10.3km/h).
The calmest month (with the lowest average wind speed) is April (6.8km/h).
Average humidity in September
Miguel Leão, Brazil
- Average humidity in September: 48%
The months with the highest relative humidity are March and April (83%).
The month with the lowest relative humidity is September (48%).
Average rainfall in September
Miguel Leão, Brazil
- Average rainfall in September: 8mm
The wettest month (with the highest rainfall) is March (285mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in September
Miguel Leão, Brazil
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is March (30.1 days).
The month with the least rainy days is August (4.9 days).
Average daylight in September /
Average sunshine in September
Miguel Leão, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is April (Average sunshine: 6h and 42min).
Average sunshine days in September
Miguel Leão, Brazil
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is March (0.6 days).
Average UV index in September
Miguel Leão, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is February (UV index 6).
Average cloud cover in September
Miguel Leão, Brazil
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Miguel Leão, Brazil
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and April (8km).
