September weather forecastIrauçuba, Brazil
September
Weather in September
The first month of the spring, September, is still a tropical month in Irauçuba, Brazil, with an average temperature fluctuating between 33.5°C (92.3°F) and 23.5°C (74.3°F).Temperature
September's arrival registers an average high-temperature of a still tropical 33.5°C (92.3°F), closely aligning with the temperature of the previous month. During the nights in September, an average low-temperature of 23.5°C (74.3°F) is observed.Heat index
Throughout September, the heat index is calculated to be an extremely hot 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
With an average relative humidity of 64%, September is the least humid month.Rainfall
September is the month with the least rainfall. Rain falls for 2.6 days and accumulates 2mm (0.08") of precipitation.Daylight
The average length of the day in September in Irauçuba, Brazil, is 12h and 5min.On the first day of September, sunrise is at 05:37 and sunset at 17:40. On the last day of the month, sunrise is at 05:24 and sunset at 17:33 -03.
Sunshine
In Irauçuba, the average sunshine in September is 9.2h.UV index
January, February, May 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 threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 7 transforms into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Irauçuba, Brazil
- Average high temperature in September: 33.5°C
The warmest month (with the highest average high temperature) is October (33.7°C).
The month with the lowest average high temperature is April (30.3°C).
- Average low temperature in September: 23.5°C
The month with the highest average low temperature is December (24.7°C).
The coldest month (with the lowest average low temperature) is July (22.3°C).
Average pressure in September
Irauçuba, Brazil
- Average pressure in September: 1012.7mbar
The month with the highest atmospheric pressure is July (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Irauçuba, Brazil
- Average wind speed in September: 20.8km/h
The windiest month (with the highest average wind speed) is September (20.8km/h).
The calmest month (with the lowest average wind speed) is April (10.9km/h).
Average humidity in September
Irauçuba, Brazil
- Average humidity in September: 64%
The month with the highest relative humidity is April (84%).
The month with the lowest relative humidity is September (64%).
Average rainfall in September
Irauçuba, Brazil
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is March (175mm).
The driest month (with the least rainfall) is September (2mm).
Average rainfall days in September
Irauçuba, Brazil
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is March (28.3 days).
The month with the least rainy days is September (2.6 days).
Average daylight in September /
Average sunshine in September
Irauçuba, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 6h and 54min).
Average sunshine days in September
Irauçuba, Brazil
- Average sunshine days in September: 25 days
The month with the most sunshine days is September (25 days).
The month with the least sunshine days is April (0.9 days).
Average UV index in September
Irauçuba, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and April (UV index 6).
Average cloud cover in September
Irauçuba, Brazil
- Average cloud cover in September: 20
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Irauçuba, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are February, March, April and May (9km).





