Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
During the coldest month, December, temperatures average a high of 28.7°C (83.7°F) and a low of 21.5°C (70.7°F).Heat index
The heat index in December is computed to be a tropical 33°C (91.4°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
November and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Tiruvallur, during December, the rain falls for 13.2 days and regularly aggregates up to 75mm (2.95") of precipitation. Throughout the year, in Tiruvallur, there are 153.5 rainfall days, and 602mm (23.7") of precipitation is accumulated.Daylight
With an average of 11h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:17 am and sunset at 5:41 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 5:54 pm IST.
Sunshine
In Tiruvallur, the average sunshine in December is 6.1h.UV index
The months with the lowest UV index in Tiruvallur are January, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: During December, 6 as the daily maximum UV index converts into the following advice:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What part of the year is the coldest in Tiruvallur?
How hot is it in Tiruvallur in December?
What is the most humid month in Tiruvallur?
What is the average humidity in December in Tiruvallur?
How much does it rain in Tiruvallur in December?
What is the month with the shortest days in Tiruvallur?
How many hours of daylight does Tiruvallur have in December?
When is the sunrise / sunset in December in Tiruvallur?
How long on average sun shines in December in Tiruvallur?
When is the lowest UV index in Tiruvallur?
How high is the UV index in December in Tiruvallur?
Average temperature in December
Tiruvallur, India
- Average high temperature in December: 28.7°C
The warmest month (with the highest average high temperature) is May (40.3°C).
The month with the lowest average high temperature is December (28.7°C).
- Average low temperature in December: 21.5°C
The month with the highest average low temperature is May (29.3°C).
The coldest months (with the lowest average low temperature) are January and February (20.3°C).
Average pressure in December
Tiruvallur, India
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is January (1013.8mbar).
The month with the lowest atmospheric pressure is June (1004.3mbar).
Average wind speed in December
Tiruvallur, India
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is October (9km/h).
Average humidity in December
Tiruvallur, India
- Average humidity in December: 77%
The months with the highest relative humidity are November and December (77%).
The month with the lowest relative humidity is June (50%).
Average rainfall in December
Tiruvallur, India
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is November (134mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in December
Tiruvallur, India
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is September (22 days).
The month with the least rainy days is February (3.6 days).
Average daylight in December /
Average sunshine in December
Tiruvallur, India
- Average daylight in December: 11h and 2min
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 1min
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 December
Tiruvallur, India
- Average sunshine days in December: 14.2 days
The month with the most sunshine days is March (25.6 days).
The month with the least sunshine days is September (6 days).
Average UV index in December
Tiruvallur, India
- Average UV index in December: 6
The months with the highest UV index are 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 December
Tiruvallur, India
- Average cloud cover in December: 38
The month with the most cloud cover is August (Cloud cover 42).
The month with the least cloud cover is April (Cloud cover 14).
Average visibility in December
Tiruvallur, India
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
Tiruvallur, India
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