September weather forecastIrungattukottai, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Irungattukottai, is also a hot month, with an average temperature fluctuating between 34.2°C (93.6°F) and 25.8°C (78.4°F).Temperature
September's advent denotes a minor fluctuation in the average high-temperature to a tropical 34.2°C (93.6°F) from August's 35.1°C (95.2°F). Irungattukottai records a steady low-temperature average of 25.8°C (78.4°F) during September.Heat index
The average heat index in September is estimated at a blazing hot 45°C (113°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. 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 can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In Irungattukottai, the average relative humidity in September is 66%.Rainfall
In September, the rain falls for 22 days. Throughout September, 72mm (2.83") of precipitation is accumulated. In Irungattukottai, during the entire year, the rain falls for 153.5 days and collects up to 602mm (23.7") of precipitation.Daylight
In September, the average length of the day is 12h and 12min.On the first day of September, sunrise is at 5:59 am and sunset at 6:21 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 is 9.9h.UV index
In Irungattukottai, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 7 in September leads to these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Irungattukottai, India
- Average high temperature in September: 34.2°C
The warmest month (with the highest average high temperature) is May (40.3°C).
The month with the lowest average high temperature is December (28.7°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is May (29.3°C).
The coldest months (with the lowest average low temperature) are January and February (20.3°C).
Average pressure in September
Irungattukottai, India
- Average pressure in September: 1006.8mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is June (1004.3mbar).
Average wind speed in September
Irungattukottai, India
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is October (9km/h).
Average humidity in September
Irungattukottai, India
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (77%).
The month with the lowest relative humidity is June (50%).
Average rainfall in September
Irungattukottai, India
- Average rainfall in September: 72mm
The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in September
Irungattukottai, India
- Average rainfall days in September: 22 days
The month with the highest number of rainy days is September (22 days).
The month with the least rainy days is February (3.6 days).
Average daylight in September /
Average sunshine in September
Irungattukottai, 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: 9h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Irungattukottai, India
- Average sunshine days in September: 6 days
The month with the most sunshine days is March (25.6 days).
The month with the least sunshine days is September (6 days).
Average UV index in September
Irungattukottai, 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
Irungattukottai, India
- Average cloud cover in September: 39
The month with the most cloud cover is August (Cloud cover 42).
The month with the least cloud cover is April (Cloud cover 14).
Average visibility in September
Irungattukottai, India
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).





