September weather forecastKalna, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is another hot month in Kalna, India, with temperature in the range of an average high of 32.2°C (90°F) and an average low of 25.6°C (78.1°F).Temperature
The advent of September brings an average high-temperature of a still tropical 32.2°C (90°F), exhibiting minor difference from the previous month. Throughout the September nights, Kalna encounters a low-temperature of 25.6°C (78.1°F).Heat index
During September, the heat index is computed to be a life-threatening hot 45°C (113°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. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
In Kalna, the average relative humidity in September is 80%.Rainfall
In Kalna, in September, during 22.4 rainfall days, 119mm (4.69") of precipitation is typically accumulated. In Kalna, during the entire year, the rain falls for 149.4 days and collects up to 912mm (35.91") of precipitation.Daylight
In Kalna, the average length of the day in September is 12h and 17min.On the first day of the month, sunrise is at 5:18 am and sunset at 5:54 pm. On the last day of September, sunrise is at 5:27 am and sunset at 5:25 pm IST.
Sunshine
In Kalna, India, the average sunshine in September is 7.7h.UV index
In Kalna, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 7 in September leads to these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kalna, India
- Average high temperature in September: 32.2°C
The warmest month (with the highest average high temperature) is April (39.2°C).
The month with the lowest average high temperature is January (26.1°C).
- Average low temperature in September: 25.6°C
The month with the highest average low temperature is June (28.5°C).
The coldest month (with the lowest average low temperature) is January (14.8°C).
Average pressure in September
Kalna, India
- Average pressure in September: 1004.6mbar
The month with the highest atmospheric pressure is January (1015.2mbar).
The month with the lowest atmospheric pressure is July (999.5mbar).
Average wind speed in September
Kalna, India
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is May (13.8km/h).
The calmest month (with the lowest average wind speed) is October (7.5km/h).
Average humidity in September
Kalna, India
- Average humidity in September: 80%
The month with the highest relative humidity is August (81%).
The month with the lowest relative humidity is February (40%).
Average rainfall in September
Kalna, India
- Average rainfall in September: 119mm
The wettest month (with the highest rainfall) is July (208mm).
The driest month (with the least rainfall) is January (3mm).
Average rainfall days in September
Kalna, India
- Average rainfall days in September: 22.4 days
The month with the highest number of rainy days is July (29.1 days).
The month with the least rainy days is December (1.3 days).
Average daylight in September /
Average sunshine in September
Kalna, India
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 7h and 42min
The month with the most sunshine is May (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Kalna, India
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is December (29.6 days).
The month with the least sunshine days is July (1.6 days).
Average UV index in September
Kalna, India
- Average UV index in September: 7
The months with the highest UV index are March, April and May (UV index 8).
The months with the lowest UV index are January, February, November and December (UV index 6).
Average cloud cover in September
Kalna, India
- Average cloud cover in September: 43
The month with the most cloud cover is July (Cloud cover 54).
The month with the least cloud cover is January (Cloud cover 6).
Average visibility in September
Kalna, India
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).





