December weather forecastKalyan, India

Weather in December

December concludes the year in Kalyan with noticeable shifts towards cooler climate patterns. The weather shows a nominal dip in temperature and a decline in rainfall to 1mm (0.04"), retaining the trend established in November. Amidst these cooler conditions, the hours of sunlight decrease a fraction. Surprisingly, increased windspeeds and reduced cloud coverage reinstate December as a month with good visibility. As the city returns to January, colder nights persist along with a noticeable decline in the UV index.

Temperature

The arrival of December in Kalyan, India, sees an average high-temperature of a still hot 32.8°C (91°F), hardly diverging from November's 33.9°C (93°F). In December, the nighttime temperature plummets remarkably from the daily apex to a steady average of 19.9°C (67.8°F).

Heat index

For December, the heat index is appraised at a fiery hot 35°C (95°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. 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 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. 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. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Kalyan, the average relative humidity in December is 46%.

Rainfall

December is the last month it rains. During 1.3 rainfall days, in December, Kalyan aggregates 1mm (0.04") of precipitation. Throughout the year, there are 138.3 rainfall days, and 1253mm (49.33") of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 11h and 0min of daylight.
On the first day of December, sunrise is at 6:54 am and sunset at 5:58 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:10 pm IST.

Sunshine

In Kalyan, the average sunshine in December is 9.1h.

UV index

The months with the lowest UV index in Kalyan are June through August and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 6 during December leads to these advisories:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.