September weather forecastRadhapuram, India
September
Weather in September
September, the last month of the rainy (monsoon) season in Radhapuram, is another warm month, with an average temperature fluctuating between 24.9°C (76.8°F) and 29.2°C (84.6°F).Temperature
With the shift into September, Radhapuram maintains an average high temperature of a still warm 29.2°C (84.6°F), reflecting the same thermal conditions as the previous month. Throughout September, Radhapuram observes a steady low-temperature average of 24.9°C (76.8°F), reflecting a minor dip from daytime highs.Heat index
September's heat index is appraised at a torrid 35°C (95°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Remember that heat index calculations are made for conditions in the shade with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. 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 especially crucial for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
September is the most humid month in Radhapuram, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 15.6 days. Throughout September, 60mm (2.36") of precipitation is accumulated. Throughout the year, in Radhapuram, there are 194.3 rainfall days, and 837mm (32.95") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 10min.On the first day of the month, sunrise is at 6:10 am and sunset at 6:27 pm. On the last day of September, in Radhapuram, India, sunrise is at 6:07 am and sunset at 6:10 pm IST.
Sunshine
The average sunshine in September in Radhapuram is 9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Radhapuram. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Radhapuram, India. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 7 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Radhapuram, India
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is April (31.3°C).
The month with the lowest average high temperature is December (28.5°C).
- Average low temperature in September: 24.9°C
The month with the highest average low temperature is May (27°C).
The coldest month (with the lowest average low temperature) is January (23.1°C).
Average pressure in September
Radhapuram, India
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is January (1011.9mbar).
The month with the lowest atmospheric pressure is May (1008mbar).
Average wind speed in September
Radhapuram, India
- Average wind speed in September: 22.5km/h
The windiest month (with the highest average wind speed) is July (26.6km/h).
The calmest month (with the lowest average wind speed) is March (12.6km/h).
Average humidity in September
Radhapuram, India
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is February (70%).
Average rainfall in September
Radhapuram, India
- Average rainfall in September: 60mm
The wettest month (with the highest rainfall) is October (146mm).
The driest month (with the least rainfall) is January (11mm).
Average rainfall days in September
Radhapuram, India
- Average rainfall days in September: 15.6 days
The month with the highest number of rainy days is April (24.4 days).
The months with the least rainy days are January and February (6.5 days).
Average daylight in September /
Average sunshine in September
Radhapuram, India
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is February (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Radhapuram, India
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is April (2.2 days).
Average UV index in September
Radhapuram, India
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Radhapuram, India
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 14).
Average visibility in September
Radhapuram, 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).





