September weather forecastChidambaram, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is also a hot month in Chidambaram, India, with an average temperature fluctuating between 26.5°C (79.7°F) and 32.7°C (90.9°F).Temperature
Chidambaram experiences a recorded average high-temperature of a still hot 32.7°C (90.9°F) in September, closely aligned with August's 33.5°C (92.3°F). Chidambaram in September experiences a low-temperature average of 26.5°C (79.7°F).Heat index
For September, the heat index is estimated at a blisteringly hot 43°C (109.4°F). Stay on guard: Heat exhaustion and heat cramps are predicted. Ongoing effort can cause heatstroke.Consider that heat index readings are for situations in the shade and light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
The average relative humidity in September is 71%.Rainfall
In Chidambaram, in September, it is raining for 25.3 days, with typically 82mm (3.23") of accumulated precipitation. Throughout the year, in Chidambaram, there are 189.4 rainfall days, and 828mm (32.6") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of September, sunrise is at 6:01 am and sunset at 6:21 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 is 9h.UV index
In Chidambaram, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during September leads to these advisories:
Guard against overexposure. Protection from sun-induced harm is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chidambaram, India
- Average high temperature in September: 32.7°C
The warmest month (with the highest average high temperature) is May (36.3°C).
The month with the lowest average high temperature is January (27.8°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is May (28.9°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure in September
Chidambaram, India
- Average pressure in September: 1007.2mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The month with the lowest atmospheric pressure is June (1005mbar).
Average wind speed in September
Chidambaram, India
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is October (12.5km/h).
Average humidity in September
Chidambaram, India
- Average humidity in September: 71%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is June (59%).
Average rainfall in September
Chidambaram, India
- Average rainfall in September: 82mm
The wettest month (with the highest rainfall) is November (174mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
Chidambaram, India
- Average rainfall days in September: 25.3 days
The month with the highest number of rainy days is September (25.3 days).
The month with the least rainy days is February (4.8 days).
Average daylight in September /
Average sunshine in September
Chidambaram, India
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Chidambaram, India
- Average sunshine days in September: 4 days
The month with the most sunshine days is March (22.9 days).
The month with the least sunshine days is September (4 days).
Average UV index in September
Chidambaram, India
- Average UV index in September: 7
The months with the highest UV index are April, May and June (UV index 8).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
Chidambaram, India
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is March (Cloud cover 14).
Average visibility in September
Chidambaram, 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).





