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
As September takes its course, Nandambakkam's average high-temperature registers at a still hot 32.9°C (91.2°F), closely aligning with the preceding month. In September, Nandambakkam's temperature tends to fall to an average low of 26.9°C (80.4°F) during the night.Heat index
The heat index value for September is appraised at a blistering 43°C (109.4°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.The heat index's values are generally associated with conditions in shade and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In September, the average relative humidity is 70%.Rainfall
In Nandambakkam, during September, the rain falls for 25 days and regularly aggregates up to 104mm (4.09") of precipitation. In Nandambakkam, during the entire year, the rain falls for 169.2 days and collects up to 825mm (32.48") of precipitation.Daylight
In September, the average length of the day in Nandambakkam 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 5:58 am and sunset at 5:59 pm IST.
Sunshine
In September, the average sunshine is 10.5h.UV index
The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Nandambakkam have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Nandambakkam have in September?
How high is the UV index in September?
Average temperature in September
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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
Nandambakkam, 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).
