September weather forecastCheyyar, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is another hot month in Cheyyar, India, with temperature in the range of an average high of 34°C (93.2°F) and an average low of 25.5°C (77.9°F).Temperature
September's commencement is accompanied by an average high-temperature of a tropical 34°C (93.2°F), diverging marginally from August's 35°C (95°F). An average minimum temperature of 25.5°C (77.9°F) is recorded in Cheyyar during the month of September.Heat index
In September, the heat index is computed to be a blazing hot 45°C (113°F). Keep guard: Heat cramps and heat exhaustion are likely. Continued activity increases the risk of heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. 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 hold great significance to children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
In Cheyyar, the average relative humidity in September is 66%.Rainfall
In Cheyyar, India, in September, it is raining for 21.6 days, with typically 70mm (2.76") of accumulated precipitation. Throughout the year, in Cheyyar, India, there are 156.4 rainfall days, and 604mm (23.78") of precipitation is accumulated.Daylight
The average length of the day in September in Cheyyar is 12h and 12min.On the first day of September in Cheyyar, sunrise is at 6:00 am and sunset at 6:22 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:02 pm IST.
Sunshine
The average sunshine in September in Cheyyar is 8.5h.UV index
The average daily maximum UV index in September in Cheyyar is 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun 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
Average temperature in September
Cheyyar, India
- Average high temperature in September: 34°C
The warmest month (with the highest average high temperature) is May (40.1°C).
The month with the lowest average high temperature is December (28.9°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is May (29.1°C).
The coldest month (with the lowest average low temperature) is January (19.9°C).
Average pressure in September
Cheyyar, India
- Average pressure in September: 1007mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is June (1004.6mbar).
Average wind speed in September
Cheyyar, India
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is June (14.3km/h).
The calmest month (with the lowest average wind speed) is October (8.8km/h).
Average humidity in September
Cheyyar, India
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (77%).
The months with the lowest relative humidity are May and June (50%).
Average rainfall in September
Cheyyar, India
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is November (131mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in September
Cheyyar, India
- Average rainfall days in September: 21.6 days
The month with the highest number of rainy days is August (22.1 days).
The month with the least rainy days is February (3.5 days).
Average daylight in September /
Average sunshine in September
Cheyyar, India
- Average daylight in September: 12h and 12min
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: 8h and 30min
The month with the most sunshine is May (Average sunshine: 11h and 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 0min).
Average sunshine days in September
Cheyyar, India
- Average sunshine days in September: 5.9 days
The month with the most sunshine days is March (24.9 days).
The month with the least sunshine days is September (5.9 days).
Average UV index in September
Cheyyar, 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, October, November and December (UV index 6).
Average cloud cover in September
Cheyyar, India
- Average cloud cover in September: 38
The months with the most cloud cover are July and August (Cloud cover 40).
The months with the least cloud cover are March and April (Cloud cover 15).
Average visibility in September
Cheyyar, India
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).





