December weather forecast
Sivakasi, India

December, the first month of the winter in Sivakasi, is still a warm month, with an average temperature ranging between max 29.5°C (85.1°F) and min 21.7°C (71.1°F).

Temperature

With its high average temperature of 29.5°C (85.1°F) and a low of 21.7°C (71.1°F), December is regarded as the coldest month.

Heat index

In December, the heat index is computed to be a fiery hot 35°C (95°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in December is 73%.

Rainfall

In Sivakasi, in December, during 18.1 rainfall days, 77mm (3.03") of precipitation is typically accumulated. In Sivakasi, during the entire year, the rain falls for 159.8 days and collects up to 689mm (27.13") of precipitation.

Daylight

The month with the shortest days in Sivakasi, India, is December, with an average of 11h and 36min of daylight.
On the first day of December in Sivakasi, sunrise is at 6:19 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:09 pm IST.

Sunshine

In Sivakasi, the average sunshine in December is 7.1h.

UV index

October through December, with an average maximum UV index of 6, are months with the lowest UV index in Sivakasi. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.