December weather forecast
Thiruvananthapuram, India

December, the first month of the winter in Thiruvananthapuram, is also a hot month, with an average temperature fluctuating between 22.7°C (72.9°F) and 31.6°C (88.9°F).
The perfect water temperature of 28°C (82.4°F) with 64mm (2.52") of accumulated rainfall and only 4.2 rainfall days, makes December a great period for swimming and other water activities.

Temperature

December's arrival registers an average high-temperature of a still hot 31.6°C (88.9°F), closely aligning with the temperature of the previous month. December sees the temperature falling to a mean low of 22.7°C (72.9°F).

Heat index

December's heat index is calculated to be a scorching 41°C (105.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In December, the average relative humidity in Thiruvananthapuram is 74%.

Rainfall

In Thiruvananthapuram, in December, it is raining for 4.2 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, in Thiruvananthapuram, there are 95.3 rainfall days, and 1754mm (69.06") of precipitation is accumulated.

Sea temperature

In Thiruvananthapuram, in December, the average water temperature is 28°C (82.4°F).
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

December has the shortest days of the year in Thiruvananthapuram, with an average of 11h and 36min of daylight.
On the first day of December in Thiruvananthapuram, sunrise is at 6:21 am and sunset at 6:01 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:14 pm IST.

Sunshine

In Thiruvananthapuram, India, the average sunshine in December is 7h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 10. A UV Index of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 10 during December translates into the following directions:
It is essential to prioritize protection. Unprotected skin and eyes can suffer rapid harm. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Frequent reapplication of a broad-spectrum SPF 30+ sunscreen is vital every two hours or directly after a swim or an outdoor workout. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.