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
Weather in September
Temperature
The warmest time of the year is September, with temperatures averaging a high of 33.1°C (91.6°F) and a low of 20°C (68°F).Heat index
Throughout September, the heat index is calculated to be a sweltering 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
The average relative humidity in September in São João de Iracema is 49%.Rainfall
In São João de Iracema, in September, during 8.6 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, in São João de Iracema, Brazil, there are 207.2 rainfall days, and 1290mm (50.79") of precipitation is accumulated.Daylight
In September, the average length of the day is 11h and 59min.On the first day of the month, sunrise is at 06:29 and sunset at 18:12. On the last day of September, sunrise is at 06:02 and sunset at 18:19 -03.
Sunshine
In São João de Iracema, the average sunshine in September is 9.5h.UV index
The months with the lowest UV index in São João de Iracema, Brazil, are January through July, September through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete 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
What month is the hottest in São João de Iracema?
How hot does it get in São João de Iracema in September?
What is the average humidity in September in São João de Iracema?
How many days does it rain in September in São João de Iracema?
How many hours of daylight does São João de Iracema have in September?
When are sunrise and sunset in September in São João de Iracema?
How many hours of sunshine does São João de Iracema have in September?
What are the months with the lowest UV index in São João de Iracema?
What is the UV index reading in September in São João de Iracema?
Average temperature in September
São João de Iracema, Brazil
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is September (33.1°C).
The month with the lowest average high temperature is June (25.8°C).
- Average low temperature in September: 20°C
The months with the highest average low temperature are January, November and December (21.4°C).
The coldest month (with the lowest average low temperature) is June (16.2°C).
Average pressure in September
São João de Iracema, Brazil
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is July (1017.5mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in September
São João de Iracema, Brazil
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is August (10.2km/h).
The calmest month (with the lowest average wind speed) is February (6.6km/h).
Average humidity in September
São João de Iracema, Brazil
- Average humidity in September: 49%
The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
São João de Iracema, Brazil
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is January (222mm).
The driest months (with the least rainfall) are July and August (8mm).
Average rainfall days in September
São João de Iracema, Brazil
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is January (29.1 days).
The month with the least rainy days is August (3.3 days).
Average daylight in September /
Average sunshine in September
São João de Iracema, Brazil
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 18min).
Average sunshine days in September
São João de Iracema, Brazil
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is August (27 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in September
São João de Iracema, Brazil
- Average UV index in September: 6
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, September, October, November and December (UV index 6).
Average cloud cover in September
São João de Iracema, Brazil
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
São João de Iracema, 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, April, May and December (8km).
São João de Iracema, Brazil
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