September weather forecastPerambalur, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is also a hot month in Perambalur, India, with an average temperature varying between 25.6°C (78.1°F) and 34.7°C (94.5°F).Temperature
As August turns into September, the average high-temperatures rest at a hot 34.7°C (94.5°F), showing a minor variation from the prior month. Nighttime temperature lowers to an average of 25.6°C (78.1°F) in September.Heat index
For most parts of September, the heat index is evaluated at an extremely hot 44°C (111.2°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. 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. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September is 60%.Rainfall
In September, the rain falls for 20.1 days. Throughout September, 57mm (2.24") of precipitation is accumulated. Throughout the year, in Perambalur, India, there are 173.2 rainfall days, and 532mm (20.94") of precipitation is accumulated.Daylight
The average length of the day in September in Perambalur is 12h and 11min.On the first day of September in Perambalur, India, sunrise is at 6:04 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 6:05 pm IST.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 7 in September leads to these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Perambalur, India
- Average high temperature in September: 34.7°C
The warmest month (with the highest average high temperature) is May (38.5°C).
The month with the lowest average high temperature is December (29.5°C).
- Average low temperature in September: 25.6°C
The month with the highest average low temperature is May (28.4°C).
The coldest month (with the lowest average low temperature) is January (19.8°C).
Average pressure in September
Perambalur, India
- Average pressure in September: 1007.9mbar
The month with the highest atmospheric pressure is January (1013.5mbar).
The month with the lowest atmospheric pressure is June (1006.1mbar).
Average wind speed in September
Perambalur, India
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is July (18.1km/h).
The calmest month (with the lowest average wind speed) is October (9km/h).
Average humidity in September
Perambalur, India
- Average humidity in September: 60%
The month with the highest relative humidity is November (78%).
The months with the lowest relative humidity are May and June (51%).
Average rainfall in September
Perambalur, India
- Average rainfall in September: 57mm
The wettest month (with the highest rainfall) is October (132mm).
The driest month (with the least rainfall) is January (6mm).
Average rainfall days in September
Perambalur, India
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is October (22.9 days).
The month with the least rainy days is February (4.8 days).
Average daylight in September /
Average sunshine in September
Perambalur, 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: 8h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Perambalur, India
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is October (6.8 days).
Average UV index in September
Perambalur, India
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July and August (UV index 8).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in September
Perambalur, India
- Average cloud cover in September: 34
The month with the most cloud cover is November (Cloud cover 41).
The month with the least cloud cover is February (Cloud cover 16).
Average visibility in September
Perambalur, India
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, October, November and December (9km).
