September weather forecastLuís Domingues, Brazil
September
Weather in September
The first month of the spring, September, is still a warm month in Luís Domingues, Brazil, with an average temperature fluctuating between 25.2°C (77.4°F) and 29.6°C (85.3°F).Temperature
The high-temperature average in September for Luís Domingues is a still warm 29.6°C (85.3°F), staying closely aligned with August's conditions. Consistently, Luís Domingues reports average nighttime temperatures of 25.2°C (77.4°F) during September, a marginal step down from its daytime highs.Heat index
September's average heat index is appraised at a very hot 36°C (96.8°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful 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.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In Luís Domingues, the average relative humidity in September is 78%.Rainfall
In Luís Domingues, during September, the rain falls for 15.8 days and regularly aggregates up to 25mm (0.98") of precipitation. In Luís Domingues, during the entire year, the rain falls for 270.2 days and collects up to 1756mm (69.13") of precipitation.Daylight
In Luís Domingues, the average length of the day in September is 12h and 7min.On the first day of the month, sunrise is at 06:00 and sunset at 18:05. On the last day of September, sunrise is at 05:49 and sunset at 17:56 -03.
Sunshine
In Luís Domingues, the average sunshine in September is 8.9h.UV index
The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 7 in September leads to these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. 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. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Luís Domingues, Brazil
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is November (30.3°C).
The month with the lowest average high temperature is March (28.7°C).
- Average low temperature in September: 25.2°C
The month with the highest average low temperature is December (25.8°C).
The coldest month (with the lowest average low temperature) is July (24.5°C).
Average pressure in September
Luís Domingues, Brazil
- Average pressure in September: 1012mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in September
Luís Domingues, Brazil
- Average wind speed in September: 17.7km/h
The windiest month (with the highest average wind speed) is September (17.7km/h).
The calmest month (with the lowest average wind speed) is April (11.4km/h).
Average humidity in September
Luís Domingues, Brazil
- Average humidity in September: 78%
The months with the highest relative humidity are March and April (84%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in September
Luís Domingues, Brazil
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is April (318mm).
The driest month (with the least rainfall) is October (20mm).
Average rainfall days in September
Luís Domingues, Brazil
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is March (30.2 days).
The month with the least rainy days is November (9.5 days).
Average daylight in September /
Average sunshine in September
Luís Domingues, Brazil
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is May (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 7h and 0min).
Average sunshine days in September
Luís Domingues, Brazil
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is April (0.6 days).
Average UV index in September
Luís Domingues, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is April (UV index 6).
Average cloud cover in September
Luís Domingues, Brazil
- Average cloud cover in September: 33
The months with the most cloud cover are February, March and April (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Luís Domingues, 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).
