September weather forecastWalajapet, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is another hot month in Walajapet, India, with an average temperature fluctuating between 33.5°C (92.3°F) and 24.5°C (76.1°F).Temperature
September reports an average high-temperature of a still hot 33.5°C (92.3°F), slightly varied from August's 34.4°C (93.9°F). An average nighttime temperature of 24.5°C (76.1°F) is recorded in Walajapet during September.Heat index
Throughout September, the heat index is estimated at a blistering 44°C (111.2°F). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
The average relative humidity in September in Walajapet is 67%.Rainfall
In Walajapet, India, in September, it is raining for 23.3 days, with typically 86mm (3.39") of accumulated precipitation. Throughout the year, in Walajapet, India, there are 164.7 rainfall days, and 600mm (23.62") of precipitation is accumulated.Daylight
In Walajapet, India, the average length of the day in September is 12h and 12min.On the first day of September, sunrise is at 6:01 am and sunset at 6:23 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 6:03 pm IST.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 7 in September, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Walajapet, India
- Average high temperature in September: 33.5°C
The warmest month (with the highest average high temperature) is May (39.8°C).
The month with the lowest average high temperature is December (28.7°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is May (28.5°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).
Average pressure in September
Walajapet, India
- Average pressure in September: 1007.3mbar
The month with the highest atmospheric pressure is January (1014mbar).
The month with the lowest atmospheric pressure is June (1004.9mbar).
Average wind speed in September
Walajapet, India
- Average wind speed in September: 9.3km/h
The windiest months (with the highest average wind speed) are June and July (14.3km/h).
The calmest month (with the lowest average wind speed) is October (7.5km/h).
Average humidity in September
Walajapet, India
- Average humidity in September: 67%
The month with the highest relative humidity is November (78%).
The month with the lowest relative humidity is May (47%).
Average rainfall in September
Walajapet, India
- Average rainfall in September: 86mm
The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in September
Walajapet, India
- Average rainfall days in September: 23.3 days
The month with the highest number of rainy days is September (23.3 days).
The month with the least rainy days is February (3.8 days).
Average daylight in September /
Average sunshine in September
Walajapet, 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: 8h and 36min
The month with the most sunshine is May (Average sunshine: 11h and 42min).
The months with the least sunshine are November and December (Average sunshine: 5h and 54min).
Average sunshine days in September
Walajapet, India
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is March (24.9 days).
The month with the least sunshine days is September (5.1 days).
Average UV index in September
Walajapet, 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
Walajapet, India
- Average cloud cover in September: 38
The month with the most cloud cover is November (Cloud cover 40).
The months with the least cloud cover are March and April (Cloud cover 15).
Average visibility in September
Walajapet, India
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, February, October, November and December (9km).





