September weather forecastAracati, Brazil
September
Weather in September
The first month of the spring, September, is also a hot month in Aracati, Brazil, with an average temperature ranging between max 31°C (87.8°F) and min 23.7°C (74.7°F).Temperature
With the onset of September, the average high-temperature registers at a still tropical 31°C (87.8°F), subtly different from August's 30.9°C (87.6°F). Aracati observes an average nighttime temperature of 23.7°C (74.7°F) during September.Heat index
The heat index value during September is computed to be a very hot 37°C (98.6°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Know that the heat index computations account for shaded terrains and slight winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 68%.Rainfall
The month with the least rainfall is September, when the rain falls for 2.5 days and typically collects 1mm (0.04") of precipitation.Daylight
In September, the average length of the day is 12h and 5min.On the first day of September, sunrise is at 05:30 and sunset at 17:31. On the last day of the month, sunrise is at 05:16 and sunset at 17:25 -03.
Sunshine
In Aracati, the average sunshine in September is 9.4h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability 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:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure 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
Aracati, Brazil
- Average high temperature in September: 31°C
The warmest month (with the highest average high temperature) is October (31.4°C).
The month with the lowest average high temperature is July (29.9°C).
- Average low temperature in September: 23.7°C
The months with the highest average low temperature are January, February and December (25.7°C).
The coldest month (with the lowest average low temperature) is August (23°C).
Average pressure in September
Aracati, Brazil
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in September
Aracati, Brazil
- Average wind speed in September: 25.5km/h
The windiest month (with the highest average wind speed) is September (25.5km/h).
The calmest month (with the lowest average wind speed) is April (16.2km/h).
Average humidity in September
Aracati, Brazil
- Average humidity in September: 68%
The months with the highest relative humidity are April and May (77%).
The months with the lowest relative humidity are August and September (68%).
Average rainfall in September
Aracati, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is April (116mm).
The driest month (with the least rainfall) is September (1mm).
Average rainfall days in September
Aracati, Brazil
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is April (22.3 days).
The month with the least rainy days is September (2.5 days).
Average daylight in September /
Average sunshine in September
Aracati, Brazil
- Average daylight in September: 12h and 6min
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 54min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is March (Average sunshine: 8h and 6min).
Average sunshine days in September
Aracati, Brazil
- Average sunshine days in September: 25.3 days
The month with the most sunshine days is September (25.3 days).
The month with the least sunshine days is April (6.3 days).
Average UV index in September
Aracati, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Aracati, Brazil
- Average cloud cover in September: 19
The month with the most cloud cover is April (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in September
Aracati, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
