September weather forecastMannargudi, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Mannargudi, is another hot month, with an average temperature varying between 34.4°C (93.9°F) and 26°C (78.8°F).Temperature
The arrival of September records an average high-temperature of a tropical 34.4°C (93.9°F), closely related to the 35.1°C (95.2°F) observed in August. An average low-temperature of 26°C (78.8°F) is noted during the month of September.Heat index
September's average heat index is estimated at a life-threatening hot 46°C (114.8°F). Observe: Heat exhaustion and heat cramps are probable. Heatstroke is on the horizon with prolonged exertion.Heat index's context suggests values are appropriate for shady areas and slight breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.
Humidity
In September, the average relative humidity in Mannargudi is 66%.Rainfall
In Mannargudi, in September, during 16.8 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Mannargudi, during the entire year, the rain falls for 153.8 days and collects up to 430mm (16.93") of precipitation.Daylight
In Mannargudi, the average length of the day in September is 12h and 11min.On the first day of September, sunrise is at 6:02 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:03 pm IST.
Sunshine
The average sunshine in September in Mannargudi is 8.8h.UV index
In September, the average daily maximum UV index is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 7 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mannargudi, India
- Average high temperature in September: 34.4°C
The warmest month (with the highest average high temperature) is May (37.6°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in September: 26°C
The month with the highest average low temperature is May (28.6°C).
The coldest month (with the lowest average low temperature) is January (20.9°C).
Average pressure in September
Mannargudi, India
- Average pressure in September: 1007.4mbar
The month with the highest atmospheric pressure is January (1013.1mbar).
The month with the lowest atmospheric pressure is June (1005.4mbar).
Average wind speed in September
Mannargudi, India
- Average wind speed in September: 12.2km/h
The windiest month (with the highest average wind speed) is June (16km/h).
The calmest month (with the lowest average wind speed) is October (10.6km/h).
Average humidity in September
Mannargudi, India
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (81%).
The month with the lowest relative humidity is June (54%).
Average rainfall in September
Mannargudi, India
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is October (92mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in September
Mannargudi, India
- Average rainfall days in September: 16.8 days
The month with the highest number of rainy days is October (19.7 days).
The month with the least rainy days is February (5.3 days).
Average daylight in September /
Average sunshine in September
Mannargudi, India
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Mannargudi, India
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is March (23.1 days).
The month with the least sunshine days is November (9.5 days).
Average UV index in September
Mannargudi, 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
Mannargudi, India
- Average cloud cover in September: 35
The months with the most cloud cover are November and December (Cloud cover 44).
The month with the least cloud cover is March (Cloud cover 17).
Average visibility in September
Mannargudi, India
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).





