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
Chettippattu notes an average high-temperature of a still tropical 32.9°C (91.2°F) in September, hardly diverging from August. An average low-temperature of 26.9°C (80.4°F) is common during the nights of September.Heat index
For most parts of September, the heat index is calculated to be a blisteringly hot 43°C (109.4°F). Stay vigilant: Heat cramps along with heat exhaustion are expected. Heatstroke may follow prolonged exertion.In reference to the heat index, it's for places in shade and with a slight wind. 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 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for 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.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Chettippattu, India, the average relative humidity in September is 70%.Rainfall
In Chettippattu, in September, during 25 rainfall days, 104mm (4.09") of precipitation is typically accumulated. In Chettippattu, during the entire year, the rain falls for 169.2 days and collects up to 825mm (32.48") of precipitation.Daylight
The average length of the day in September in Chettippattu is 12h and 12min.On the first day of September, sunrise is at 5:58 am and sunset at 6:20 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 6:00 pm IST.
Sunshine
The average sunshine in September in Chettippattu is 10.5h.UV index
In September, the average daily maximum UV index is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Chettippattu in September?
What is the average humidity in September in Chettippattu?
How many days does it rain in September in Chettippattu?
How many hours of daylight does Chettippattu have in September?
When is the sunrise / sunset in September in Chettippattu?
How long on average sun shines in September in Chettippattu?
How high is the UV index in September in Chettippattu?
Average temperature in September
Chettippattu, India
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is May (36.8°C).
The month with the lowest average high temperature is December (27.9°C).
- Average low temperature in September: 26.9°C
The month with the highest average low temperature is May (29.4°C).
The coldest month (with the lowest average low temperature) is January (22.6°C).
Average pressure in September
Chettippattu, India
- Average pressure in September: 1006.8mbar
The month with the highest atmospheric pressure is January (1013.6mbar).
The month with the lowest atmospheric pressure is June (1004.2mbar).
Average wind speed in September
Chettippattu, India
- Average wind speed in September: 12.6km/h
The windiest month (with the highest average wind speed) is May (17.3km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in September
Chettippattu, India
- Average humidity in September: 70%
The months with the highest relative humidity are November and December (76%).
The month with the lowest relative humidity is June (58%).
Average rainfall in September
Chettippattu, India
- Average rainfall in September: 104mm
The wettest month (with the highest rainfall) is November (191mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in September
Chettippattu, India
- Average rainfall days in September: 25 days
The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (3.4 days).
Average daylight in September /
Average sunshine in September
Chettippattu, India
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 12min).
Average sunshine days in September
Chettippattu, India
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is March (25.8 days).
The month with the least sunshine days is September (3.5 days).
Average UV index in September
Chettippattu, India
- Average UV index in September: 7
The months with the highest UV index are April, May, June and July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 6).
Average cloud cover in September
Chettippattu, India
- Average cloud cover in September: 38
The month with the most cloud cover is August (Cloud cover 42).
The months with the least cloud cover are March and April (Cloud cover 13).
Average visibility in September
Chettippattu, India
- 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).
