Kolkata
India
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Kolkata, India

The sun rising above the magnificent Victoria Memorial monument and museum in Kolkata, India
The sun rising above the magnificent Victoria Memorial monument and museum in Kolkata, India
December, the first month of the winter, in Kolkata, is also a moderately hot month, with average temperature fluctuating between 14.5°C (58.1°F) and 27°C (80.6°F).

Temperature

In December, the average high-temperature marginally drops, from a tropical 30.3°C (86.5°F) in November, to a warm 27°C (80.6°F). In December, in Kolkata, the average low-temperature is 14.5°C (58.1°F).

Heat index

The average heat index is estimated at 28.7°C (83.7°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (metabolic differences, wind, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In December, the average relative humidity in Kolkata, India, is 68%.

Rainfall

In Kolkata, during December, the rain falls for 0.9 days and regularly aggregates up to 17mm (0.7") of precipitation. Throughout the year, in Kolkata, there are 101.5 rainfall days, and 1800mm (70.9") of precipitation is accumulated.

Daylight

The month with the shortest days in Kolkata is December, with an average of 10.8h of daylight.

Sunshine

The average sunshine in Kolkata is 6.6h.

UV index

December is the month with the lowest UV index in Kolkata, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in December transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in December in Kolkata?

In December, in Kolkata, the average high-temperature is 27°C (80.6°F), and the average low-temperature is 14.5°C (58.1°F). In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), that takes the relative humidity and factores it into the air temperature reading, is estimated at 28.7°C (83.7°F).

What is the average humidity in December in Kolkata?

In December, the average relative humidity in Kolkata is 68%.

How much does it rain in Kolkata in December?

In Kolkata, India, in December, during 0.9 rainfall days, 17mm (0.7") of precipitation is typically accumulated.

What is the month with the shortest days in Kolkata?

The month with the shortest days is December, with an average of 10.8h of daylight.

What is the average length of the day in December in Kolkata?

In December, the average length of the day in Kolkata, India, is 10.8h.

How long on average sun shines in December in Kolkata?

In Kolkata, the average sunshine in December is 6.6h.

What is the month with the lowest UV index in Kolkata?

With an average maximum UV index of 6, December is the month with the lowest UV index.

What is the UV index intensity in December in Kolkata?

In Kolkata, India, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Kolkata, India
  • Average high temperature in December: 27°C

The warmest month (with the highest average high temperature) is May (35.4°C).
The month with the lowest average high temperature is January (26.4°C).

  • Average low temperature in December: 14.5°C

The month with the highest average low temperature is June (26.5°C).
The coldest month (with the lowest average low temperature) is January (13.8°C).

Average humidity in December - Kolkata, India
  • Average humidity in December: 68%

Months with the highest relative humidity are July and August (83%).
Months with the lowest relative humidity are February and March (58%).

Average rainfall in December - Kolkata, India
  • Average rainfall in December: 17mm

The wettest month (with the highest rainfall) is July (411mm).
The driest month (with the lowest rainfall) is January (11mm).

Average rainfall days in December - Kolkata, India
  • Average rainfall days in December: 0.9 days

The month with the highest number of rainy days is July (20.5 days).
The month with the lowest number of rainy days is December (0.9 days).

Average daylight in December / Average sunshine in December - Kolkata, India
  • Average daylight in December: 10.8h

The month with the longest days is June (Average daylight: 13.5h).
The month with shortest days is December (Average daylight: 10.8h).

  • Average sunshine in December: 6.6h

The month with most sunshine is April (Average sunshine: 7.8h).
The month with least sunshine is July (Average sunshine: 3h).

Average UV index in December - Kolkata, India
  • Average UV index in December: 6

Months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).