September weather forecastKoyambedu, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Koyambedu, is another hot month, with an average temperature ranging between min 26.9°C (80.4°F) and max 32.9°C (91.2°F).Temperature
September records an average high-temperature of a still hot 32.9°C (91.2°F), indicating a minor variation from the preceding month. Throughout September, an average low-temperature of 26.9°C (80.4°F) is experienced in Koyambedu, India.Heat index
For most parts of September, the heat index is appraised at a scorching 43°C (109.4°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In September, the average relative humidity is 69%.Rainfall
In September, in Koyambedu, the rain falls for 23.9 days. Throughout September, 92mm (3.62") of precipitation is accumulated. In Koyambedu, during the entire year, the rain falls for 154.8 days and collects up to 735mm (28.94") of precipitation.Daylight
In September, the average length of the day is 12h and 12min.On the first day of the month, sunrise is at 5:58 am and sunset at 6:20 pm. On the last day of September, sunrise is at 5:58 am and sunset at 5:59 pm IST.
Sunshine
The average sunshine in September in Koyambedu is 10.6h.UV index
In September, the average daily maximum UV index in Koyambedu is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 7 translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Koyambedu, India
- Average high temperature in September: 32.9°C
The warmest month (with the highest average high temperature) is May (37.2°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 (29.5°C).
The coldest month (with the lowest average low temperature) is January (22.3°C).
Average pressure in September
Koyambedu, India
- Average pressure in September: 1006.7mbar
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
Koyambedu, India
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is May (16.8km/h).
The calmest month (with the lowest average wind speed) is October (11.3km/h).
Average humidity in September
Koyambedu, India
- Average humidity in September: 69%
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
Koyambedu, India
- Average rainfall in September: 92mm
The wettest month (with the highest rainfall) is November (185mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in September
Koyambedu, India
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is September (23.9 days).
The month with the least rainy days is February (3.4 days).
Average daylight in September /
Average sunshine in September
Koyambedu, 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: 10h and 36min
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
Koyambedu, India
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is March (25.7 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in September
Koyambedu, 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
Koyambedu, India
- Average cloud cover in September: 37
The month with the most cloud cover is August (Cloud cover 41).
The months with the least cloud cover are March and April (Cloud cover 13).
Average visibility in September
Koyambedu, 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).
