December weather forecast
Samayanallur, India

The first month of the winter, December, is also a moderately hot month in Samayanallur, India, with an average temperature varying between 29.5°C (85.1°F) and 21.5°C (70.7°F).

Temperature

Samayanallur experiences its lowest temperatures in December, with an average peak of 29.5°C (85.1°F) and a low of 21.5°C (70.7°F).

Heat index

In December, the heat index is estimated at a sweltering 35°C (95°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in December in Samayanallur is 74%.

Rainfall

In Samayanallur, India, during December, the rain falls for 13.5 days and regularly aggregates up to 34mm (1.34") of precipitation. In Samayanallur, during the entire year, the rain falls for 175.7 days and collects up to 585mm (23.03") of precipitation.

Daylight

The month with the shortest days in Samayanallur, India, is December, with an average of 11h and 36min of daylight.
On the first day of December in Samayanallur, sunrise is at 6:19 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:07 pm IST.

Sunshine

In Samayanallur, the average sunshine in December is 6.9h.

UV index

November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.