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
September
Weather in September
Temperature
The ushering in of September brings an average high-temperature of a still warm 29.8°C (85.6°F), closely mirroring the 29.8°C (85.6°F) of August. Pentecoste in September anticipates an average nighttime temperature of 24.5°C (76.1°F).Heat index
The heat index value for September is estimated at a sweltering 35°C (95°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
The months with the lowest humidity in Pentecoste, Brazil, are August and September, with an average relative humidity of 72%.Rainfall
September is the month with the least rainfall. Rain falls for 5.4 days and accumulates 3mm (0.12") of precipitation.Daylight
In Pentecoste, Brazil, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 05:35 and sunset at 17:38. On the last day of September, sunrise is at 05:22 and sunset at 17:31 -03.
Sunshine
In Pentecoste, the average sunshine in September is 8.9h.UV index
January, February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 7 during September translates into the following directions:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Pentecoste?
What are the least humid months in Pentecoste?
What is the average humidity in September in Pentecoste?
What is the driest month in Pentecoste?
How many days does it rain in September in Pentecoste?
What is the average length of the day in September in Pentecoste?
When are sunrise and sunset in September in Pentecoste?
How long on average sun shines in September in Pentecoste?
When is the highest UV index in Pentecoste?
How high is the UV index in September in Pentecoste?
Average temperature in September
Pentecoste, Brazil
- Average high temperature in September: 29.8°C
The warmest month (with the highest average high temperature) is October (30°C).
The month with the lowest average high temperature is July (29.3°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is December (26°C).
The coldest month (with the lowest average low temperature) is July (24°C).
Average pressure in September
Pentecoste, Brazil
- Average pressure in September: 1012.9mbar
The month with the highest atmospheric pressure is July (1013.7mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Pentecoste, Brazil
- Average wind speed in September: 28.2km/h
The windiest month (with the highest average wind speed) is September (28.2km/h).
The calmest month (with the lowest average wind speed) is April (15.6km/h).
Average humidity in September
Pentecoste, Brazil
- Average humidity in September: 72%
The months with the highest relative humidity are March, April and May (80%).
The months with the lowest relative humidity are August and September (72%).
Average rainfall in September
Pentecoste, Brazil
- Average rainfall in September: 3mm
The wettest month (with the highest rainfall) is April (195mm).
The driest month (with the least rainfall) is September (3mm).
Average rainfall days in September
Pentecoste, Brazil
- Average rainfall days in September: 5.4 days
The month with the highest number of rainy days is April (28.5 days).
The month with the least rainy days is September (5.4 days).
Average daylight in September /
Average sunshine in September
Pentecoste, Brazil
- Average daylight in September: 12h and 1min
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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is April (Average sunshine: 7h and 30min).
Average sunshine days in September
Pentecoste, Brazil
- Average sunshine days in September: 20.5 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (1 days).
Average UV index in September
Pentecoste, Brazil
- Average UV index in September: 7
The months with the highest UV index are January, February, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is March (UV index 6).
Average cloud cover in September
Pentecoste, Brazil
- Average cloud cover in September: 24
The months with the most cloud cover are March and April (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Pentecoste, 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).
