September weather forecastCaicó, Brazil
September
Weather in September
The first month of the spring, September, is still a tropical month in Caicó, Brazil, with temperature in the range of an average low of 22.3°C (72.1°F) and an average high of 34.5°C (94.1°F).Temperature
Caicó notes an average high-temperature of a still tropical 34.5°C (94.1°F) in September, hardly diverging from August. Caicó's nighttime temperatures in September reflect a stark contrast to the day's highs, falling to an average low of 22.3°C (72.1°F).Heat index
September's average heat index is evaluated at a scorching 40°C (104°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.When assessing, remember that heat index measurements are for light winds and shaded spots. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in September in Caicó is 52%.Rainfall
The months with the least rainfall are August and September Rain falls for 0.9 days and accumulates 1mm (0.04") of rain.Daylight
In Caicó, the average length of the day in September is 12h and 4min.On the first day of September in Caicó, sunrise is at 05:28 and sunset at 17:28. On the last day of the month, sunrise is at 05:13 and sunset at 17:23 -03.
Sunshine
September has the most sunshine of the year, with an average of 9.8h of sunshine.UV index
The months with the highest UV index in Caicó are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. 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: In September, the maximum UV index of 7 transforms into these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Caicó, Brazil
- Average high temperature in September: 34.5°C
The warmest month (with the highest average high temperature) is November (35.5°C).
The month with the lowest average high temperature is July (31.8°C).
- Average low temperature in September: 22.3°C
The month with the highest average low temperature is December (24.4°C).
The coldest months (with the lowest average low temperature) are July and August (21.3°C).
Average pressure in September
Caicó, Brazil
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is July (1015.3mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in September
Caicó, Brazil
- Average wind speed in September: 24.2km/h
The windiest month (with the highest average wind speed) is September (24.2km/h).
The calmest month (with the lowest average wind speed) is March (13km/h).
Average humidity in September
Caicó, Brazil
- Average humidity in September: 52%
The months with the highest relative humidity are April and May (70%).
The month with the lowest relative humidity is November (50%).
Average rainfall in September
Caicó, Brazil
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is March (106mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in September
Caicó, Brazil
- Average rainfall days in September: 0.9 days
The month with the highest number of rainy days is April (21.5 days).
The month with the least rainy days is September (0.9 days).
Average daylight in September /
Average sunshine in September
Caicó, Brazil
- Average daylight in September: 12h and 6min
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: 9h and 48min
The month with the most sunshine is September (Average sunshine: 9h and 48min).
The month with the least sunshine is March (Average sunshine: 8h and 36min).
Average sunshine days in September
Caicó, Brazil
- Average sunshine days in September: 29.2 days
The month with the most sunshine days is September (29.2 days).
The month with the least sunshine days is April (7.2 days).
Average UV index in September
Caicó, 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
Caicó, Brazil
- Average cloud cover in September: 13
The month with the most cloud cover is April (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 13).
Average visibility in September
Caicó, Brazil
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is April (9km).
