September weather forecastSirumugai, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is also a hot month in Sirumugai, India, with an average temperature ranging between max 30.9°C (87.6°F) and min 21.2°C (70.2°F).Temperature
In September, Sirumugai notes an average high-temperature of a still tropical 30.9°C (87.6°F), hardly different from the preceding month. Throughout the month of September, Sirumugai expects an average low of 21.2°C (70.2°F).Heat index
September's average heat index is appraised at a fiery hot 37°C (98.6°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Sirumugai, India, the average relative humidity in September is 70%.Rainfall
In Sirumugai, during September, the rain falls for 18.8 days and regularly aggregates up to 65mm (2.56") of precipitation. In Sirumugai, India, during the entire year, the rain falls for 193.6 days and collects up to 740mm (29.13") of precipitation.Daylight
The average length of the day in September in Sirumugai is 12h and 11min.On the first day of September in Sirumugai, sunrise is at 6:11 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 6:12 pm IST.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 6 during September morphs into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sirumugai, India
- Average high temperature in September: 30.9°C
The warmest month (with the highest average high temperature) is April (35.5°C).
The month with the lowest average high temperature is December (27.4°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is May (22.8°C).
The coldest month (with the lowest average low temperature) is January (15.9°C).
Average pressure in September
Sirumugai, India
- Average pressure in September: 1009.8mbar
The month with the highest atmospheric pressure is January (1013.4mbar).
The months with the lowest atmospheric pressure are May and June (1008.6mbar).
Average wind speed in September
Sirumugai, India
- Average wind speed in September: 8.3km/h
The windiest months (with the highest average wind speed) are June and July (10.6km/h).
The calmest month (with the lowest average wind speed) is November (5km/h).
Average humidity in September
Sirumugai, India
- Average humidity in September: 70%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is March (53%).
Average rainfall in September
Sirumugai, India
- Average rainfall in September: 65mm
The wettest month (with the highest rainfall) is October (155mm).
The driest month (with the least rainfall) is January (10mm).
Average rainfall days in September
Sirumugai, India
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is May (26 days).
The month with the least rainy days is February (5.3 days).
Average daylight in September /
Average sunshine in September
Sirumugai, 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: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 6h and 30min).
Average sunshine days in September
Sirumugai, India
- Average sunshine days in September: 9.4 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (1.1 days).
Average UV index in September
Sirumugai, India
- Average UV index in September: 6
The months with the highest UV index are March, April, May and June (UV index 7).
The month with the lowest UV index is November (UV index 5).
Average cloud cover in September
Sirumugai, India
- Average cloud cover in September: 33
The months with the most cloud cover are July and November (Cloud cover 39).
The month with the least cloud cover is February (Cloud cover 13).
Average visibility in September
Sirumugai, India
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The month with the lowest visibility is November (8km).





