September weather forecastKosli, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Kosli, is another tropical month, with an average temperature fluctuating between 34.9°C (94.8°F) and 26.3°C (79.3°F).Temperature
With the onset of September, the average high-temperature registers at a tropical 34.9°C (94.8°F), subtly different from August's 35.2°C (95.4°F). An average nighttime temperature of 26.3°C (79.3°F) is recorded during September.Heat index
September's mean heat index is estimated at a scorching 42°C (107.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
The average relative humidity in September is 54%.Rainfall
In Kosli, during September, the rain falls for 9.8 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 72.1 rainfall days, and 237mm (9.33") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:02 am and sunset at 6:45 pm. On the last day of September, sunrise is at 6:16 am and sunset at 6:11 pm IST.
Sunshine
In September, the average sunshine is 9.1h.UV index
In Kosli, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during September translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kosli, India
- Average high temperature in September: 34.9°C
The warmest month (with the highest average high temperature) is May (42°C).
The month with the lowest average high temperature is January (20.7°C).
- Average low temperature in September: 26.3°C
The month with the highest average low temperature is June (31.6°C).
The coldest month (with the lowest average low temperature) is January (7.9°C).
Average pressure in September
Kosli, India
- Average pressure in September: 1003.6mbar
The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is July (996.9mbar).
Average wind speed in September
Kosli, India
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is June (11.4km/h).
The calmest month (with the lowest average wind speed) is October (6.9km/h).
Average humidity in September
Kosli, India
- Average humidity in September: 54%
The month with the highest relative humidity is August (61%).
The month with the lowest relative humidity is May (18%).
Average rainfall in September
Kosli, India
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is August (76mm).
The driest month (with the least rainfall) is October (2mm).
Average rainfall days in September
Kosli, India
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is December (0.7 days).
Average daylight in September /
Average sunshine in September
Kosli, India
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is May (Average sunshine: 12h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 7h and 36min).
Average sunshine days in September
Kosli, India
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is December (30.2 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Kosli, India
- Average UV index in September: 7
The months with the highest UV index are April, May and June (UV index 9).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in September
Kosli, India
- Average cloud cover in September: 23
The month with the most cloud cover is August (Cloud cover 37).
The month with the least cloud cover is October (Cloud cover 5).
Average visibility in September
Kosli, India
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





