Coimbatore
India
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Coimbatore, India

The first month of the winter, December, is also a moderately hot month in Coimbatore, India, with average temperature fluctuating between 28.5°C (83.3°F) and 19.1°C (66.4°F).

Temperature

December is the coldest month, with an average high-temperature of 28.5°C (83.3°F) and an average low-temperature of 19.1°C (66.4°F).

Heat index

In December, the average heat index is estimated at a hot 32.3°C (90.1°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (wind, clothing, pregnancy). 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 particularly important 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.

Humidity

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

Rainfall

In Coimbatore, it is raining for 12.3 days, with typically 36mm (1.42") of accumulated precipitation. In Coimbatore, during the entire year, the rain falls for 131.5 days and collects up to 458mm (18.03") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11.5h of daylight.

Sunshine

In December, the average sunshine is 7.6h.

UV index

January, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Coimbatore. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. 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 coldest month in Coimbatore?

The coldest month in Coimbatore is December, with an average high-temperature of 28.5°C (83.3°F) and an average low-temperature of 19.1°C (66.4°F).

What is the temperature in December in Coimbatore?

In Coimbatore, India, in December, the average high-temperature is 28.5°C (83.3°F), and the average low-temperature is 19.1°C (66.4°F). In December, the average heat index (a.k.a. 'feels like', 'real feel'), that combines air temperature and relative humidity, is estimated at 32.3°C (90.1°F).

What is the average humidity in December in Coimbatore?

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

How much does it rain in Coimbatore in December?

In Coimbatore, during December, the rain falls for 12.3 days and regularly aggregates up to 36mm (1.42") of precipitation.

What is the month with the shortest days in Coimbatore?

December has the shortest days of the year in Coimbatore, with an average of 11.5h of daylight.

How many hours of daylight does Coimbatore have in December?

In Coimbatore, the average length of the day in December is 11.5h.

How long on average sun shines in December in Coimbatore?

In December, the average sunshine in Coimbatore, India, is 7.6h.

When is the lowest UV index in Coimbatore?

Months with the lowest UV index are January, October through December, with an average maximum UV index of 6.

What is the UV index reading in December in Coimbatore?

The average daily maximum UV index in December in Coimbatore is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in December - Coimbatore, India
  • Average high temperature in December: 28.5°C

The warmest month (with the highest average high temperature) is April (37.7°C).
The month with the lowest average high temperature is December (28.5°C).

  • Average low temperature in December: 19.1°C

The month with the highest average low temperature is May (24.7°C).
The coldest month (with the lowest average low temperature) is January (18.1°C).

Average humidity in December - Coimbatore, India
  • Average humidity in December: 74%

The month with the highest relative humidity is November (77%).
The month with the lowest relative humidity is March (51%).

Average rainfall in December - Coimbatore, India
  • Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is October (125mm).
The driest month (with the lowest rainfall) is January (8mm).

Average rainfall days in December - Coimbatore, India
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is October (20.1 days).
The month with the lowest number of rainy days is January (4.6 days).

Average daylight in December / Average sunshine in December - Coimbatore, India
  • Average daylight in December: 11.5h

The month with the longest days is June (Average daylight: 12.8h).
The month with shortest days is December (Average daylight: 11.5h).

  • Average sunshine in December: 7.6h

The month with most sunshine is May (Average sunshine: 10.6h).
The month with least sunshine is November (Average sunshine: 6.2h).

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

The month with the highest UV index is April (UV index 8).
Months with the lowest UV index are January, October, November and December (UV index 6).