December weather forecast
Sattur, India

December, the first month of the winter in Sattur, is still a warm month, with temperature in the range of an average high of 29.5°C (85.1°F) and an average low of 21.7°C (71.1°F).

Temperature

December tends to be the coldest month, with temperatures averaging a daily high of 29.5°C (85.1°F) and a low of 21.7°C (71.1°F).

Heat index

The heat index value for December is evaluated at a very hot 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in December is 73%.

Rainfall

In Sattur, India, during December, the rain falls for 18.1 days and regularly aggregates up to 77mm (3.03") of precipitation. Throughout the year, there are 159.8 rainfall days, and 689mm (27.13") of precipitation is accumulated.

Daylight

December has the shortest days of the year in Sattur, India, with an average of 11h and 36min of daylight.
On the first day of the month, sunrise is at 6:18 am and sunset at 5:56 pm. On the last day of December, in Sattur, sunrise is at 6:33 am and sunset at 6:09 pm IST.

Sunshine

The average sunshine in December in Sattur, India, is 7.1h.

UV index

The months with the lowest UV index in Sattur are October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.