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
August and September, with an average high-temperature of 33.9°C (93°F), are the warmest months.Heat index
The heat index for September is calculated to be a burning hot 47°C (116.6°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.Remember that heat index calculations are made for conditions in the shade with light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The average relative humidity in September is 71%.Rainfall
In Itamarati, in September, during 19.5 rainfall days, 64mm (2.52") of precipitation is typically accumulated. Throughout the year, there are 281.1 rainfall days, and 1504mm (59.21") of precipitation is accumulated.Daylight
In Itamarati, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 06:32 and sunset at 18:32. On the last day of the month, sunrise is at 06:17 and sunset at 18:27 -04.
Sunshine
In September, the average sunshine in Itamarati is 8.9h.UV index
The months with the highest UV index in Itamarati are July through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest?
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Itamarati have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Itamarati have in September?
What is the month with the highest UV index?
How high is the UV index in September?
Average temperature in September
Itamarati, Brazil
- Average high temperature in September: 33.9°C
The warmest months (with the highest average high temperature) are August and September (33.9°C).
The month with the lowest average high temperature is January (29.3°C).
- Average low temperature in September: 22°C
The months with the highest average low temperature are October and November (22.5°C).
The coldest month (with the lowest average low temperature) is July (20.2°C).
Average pressure in September
Itamarati, Brazil
- Average pressure in September: 1010.6mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is November (1008mbar).
Average wind speed in September
Itamarati, Brazil
- Average wind speed in September: 3.8km/h
The windiest months (with the highest average wind speed) are August, September and November (3.8km/h).
The calmest months (with the lowest average wind speed) are February and March (3.3km/h).
Average humidity in September
Itamarati, Brazil
- Average humidity in September: 71%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Itamarati, Brazil
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is January (226mm).
The driest month (with the least rainfall) is August (32mm).
Average rainfall days in September
Itamarati, Brazil
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is March (29.6 days).
The month with the least rainy days is August (13.3 days).
Average daylight in September /
Average sunshine in September
Itamarati, Brazil
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 48min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is March (Average sunshine: 5h and 30min).
Average sunshine days in September
Itamarati, Brazil
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is August (16.3 days).
The month with the least sunshine days is March (1 days).
Average UV index in September
Itamarati, Brazil
- Average UV index in September: 7
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in September
Itamarati, Brazil
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Itamarati, Brazil
- Average visibility in September: 9km
The months with the highest visibility are August and September (9km).
The months with the lowest visibility are January and March (5km).
