December weather forecastPonneri, India
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Ponneri, India, with an average temperature ranging between max 27.4°C (81.3°F) and min 24.3°C (75.7°F).Temperature
December's onset sees an average high-temperature of a still moderately hot 27.4°C (81.3°F), exhibiting a slight fluctuation from the previous month. Ponneri's nocturnal average in December closely mirrors its daytime temperatures, settling at a still moderately hot 24.3°C (75.7°F).Heat index
The heat index value for December is evaluated at a hot 30°C (86°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In December, the average relative humidity is 75%.Rainfall
In Ponneri, India, in December, it is raining for 14.8 days, with typically 102mm (4.02") of accumulated precipitation. In Ponneri, during the entire year, the rain falls for 157.6 days and collects up to 823mm (32.4") of precipitation.Daylight
With an average of 11h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:16 am and sunset at 5:40 pm. On the last day of December, sunrise is at 6:31 am and sunset at 5:53 pm IST.
Sunshine
November and December, with an average of 6.3h of sunshine, are months with the least sunshine.UV index
In Ponneri, India, the average daily maximum UV index in December is 7. A UV Index estimate 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 daily UV index of 7 during December translates into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ponneri, India
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is May (34.8°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in December: 24.3°C
The month with the highest average low temperature is May (29.6°C).
The coldest month (with the lowest average low temperature) is January (23.4°C).
Average pressure in December
Ponneri, India
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is January (1013.6mbar).
The month with the lowest atmospheric pressure is June (1004.2mbar).
Average wind speed in December
Ponneri, India
- Average wind speed in December: 17.8km/h
The windiest month (with the highest average wind speed) is May (19.2km/h).
The calmest months (with the lowest average wind speed) are February and October (12.8km/h).
Average humidity in December
Ponneri, India
- Average humidity in December: 75%
The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is June (63%).
Average rainfall in December
Ponneri, India
- Average rainfall in December: 102mm
The wettest month (with the highest rainfall) is November (213mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in December
Ponneri, India
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is September (23.1 days).
The month with the least rainy days is February (2.9 days).
Average daylight in December /
Average sunshine in December
Ponneri, India
- Average daylight in December: 11h and 24min
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 December: 6h and 18min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in December
Ponneri, India
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is March (26.5 days).
The month with the least sunshine days is September (6.2 days).
Average UV index in December
Ponneri, India
- Average UV index in December: 7
The months with the highest UV index are April, May, June and July (UV index 8).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in December
Ponneri, India
- Average cloud cover in December: 38
The months with the most cloud cover are July and August (Cloud cover 40).
The months with the least cloud cover are March and April (Cloud cover 12).
Average visibility in December
Ponneri, India
- Average visibility in December: 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).
