December weather forecastAlanallur, India

Weather in December

The first month of the winter, December, is also a hot month in Alanallur, India, with an average temperature varying between 20.6°C (69.1°F) and 32.3°C (90.1°F).

Temperature

Alanallur experiences a transition to a still tropical 32.3°C (90.1°F) in average high-temperatures with the arrival of December, not greatly differing from November's 31.8°C (89.2°F). Alanallur encounters an average low-temperature of 20.6°C (69.1°F) during December nights.

Heat index

For most parts of December, the heat index is evaluated at a blistering 41°C (105.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Alanallur, the average relative humidity in December is 70%.

Rainfall

In Alanallur, in December, it is raining for 10.5 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, in Alanallur, there are 226.3 rainfall days, and 1347mm (53.03") of precipitation is accumulated.

Daylight

December has the shortest days of the year, with an average of 11h and 30min of daylight.
On the first day of December, sunrise is at 6:27 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:12 pm IST.

Sunshine

In Alanallur, the average sunshine in December is 9.3h.

UV index

January through May, September and December, with an average maximum UV index of 7, are months with the highest UV index in Alanallur. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 7 suggests this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.