September weather forecastArakkonam, India
September
Weather in September
The last month of the rainy (monsoon) season, September, is another tropical month in Arakkonam, India, with an average temperature fluctuating between 34°C (93.2°F) and 25.3°C (77.5°F).Temperature
The shift into September uncovers an average high-temperature of a still tropical 34°C (93.2°F), subtly different from the previous month. Arakkonam witnesses an average low-temperature of 25.3°C (77.5°F) throughout the month of September.Heat index
In September, the heat index is estimated at a burning hot 45°C (113°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.Note that heat index values are valued for light wind and location in the shade. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in September is 66%.Rainfall
In Arakkonam, during September, the rain falls for 24.1 days and regularly aggregates up to 91mm (3.58") of precipitation. In Arakkonam, during the entire year, the rain falls for 166.5 days and collects up to 620mm (24.41") of precipitation.Daylight
In Arakkonam, India, the average length of the day in September is 12h and 12min.On the first day of September in Arakkonam, sunrise is at 6:00 am and sunset at 6:22 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:01 pm IST.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Arakkonam, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 7 during September translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. 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. 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
Arakkonam, India
- Average high temperature in September: 34°C
The warmest month (with the highest average high temperature) is May (40.6°C).
The month with the lowest average high temperature is December (28.8°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is May (28.8°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).
Average pressure in September
Arakkonam, India
- Average pressure in September: 1007mbar
The month with the highest atmospheric pressure is January (1013.9mbar).
The month with the lowest atmospheric pressure is June (1004.5mbar).
Average wind speed in September
Arakkonam, India
- Average wind speed in September: 9.3km/h
The windiest month (with the highest average wind speed) is June (13.4km/h).
The calmest month (with the lowest average wind speed) is October (8.1km/h).
Average humidity in September
Arakkonam, India
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (77%).
The month with the lowest relative humidity is May (48%).
Average rainfall in September
Arakkonam, India
- Average rainfall in September: 91mm
The wettest month (with the highest rainfall) is October (110mm).
The driest month (with the least rainfall) is February (5mm).
Average rainfall days in September
Arakkonam, India
- Average rainfall days in September: 24.1 days
The month with the highest number of rainy days is September (24.1 days).
The month with the least rainy days is February (3.5 days).
Average daylight in September /
Average sunshine in September
Arakkonam, 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 24min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Arakkonam, India
- Average sunshine days in September: 3.8 days
The month with the most sunshine days is March (25.7 days).
The month with the least sunshine days is September (3.8 days).
Average UV index in September
Arakkonam, India
- Average UV index in September: 7
The months with the highest UV index are March, 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
Arakkonam, India
- Average cloud cover in September: 39
The month with the most cloud cover is August (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 14).
Average visibility in September
Arakkonam, India
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).
