December weather forecastUsilampatti, India

December

Weather in December

The first month of the winter, December, is still a warm month in Usilampatti, India, with an average temperature fluctuating between 17.5°C (63.5°F) and 27.2°C (81°F).

Temperature

December, on average, is the coldest month, registering a high temperature of 27.2°C (81°F) and a low of 17.5°C (63.5°F).

Heat index

In December, the average heat index is calculated to be a hot 30°C (86°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

The months with the highest humidity in Usilampatti are November and December, with an average relative humidity of 78%.

Rainfall

In Usilampatti, during December, the rain falls for 14.7 days and regularly aggregates up to 56mm (2.2") of precipitation. In Usilampatti, during the entire year, the rain falls for 177.9 days and collects up to 910mm (35.83") of precipitation.

Daylight

With an average of 11h and 36min of daylight, December has the shortest days of the year in Usilampatti.
On the first day of the month, sunrise is at 6:20 am and sunset at 5:55 pm. On the last day of December, in Usilampatti, India, sunrise is at 6:35 am and sunset at 6:08 pm IST.

Sunshine

The average sunshine in December in Usilampatti, India, is 7.6h.

UV index

January, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.

Frequently asked questions

Temperature records mark December as the coldest month, with highs averaging 27.2°C (81°F) and lows at 17.5°C (63.5°F).

In Usilampatti, in December, the average high-temperature is 27.2°C (81°F), and the average low-temperature is 17.5°C (63.5°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is calculated to be 30°C (86°F).

November and December, with an average relative humidity of 78%, are most humid months in Usilampatti.

In Usilampatti, the average relative humidity in December is 78%.

In December, in Usilampatti, the rain falls for 14.7 days. Throughout December, 56mm (2.2") of precipitation is accumulated.

With an average of 11h and 36min of daylight, December has the shortest days of the year.

The average day length in December is 11h and 34min.

On the first day of December in Usilampatti, India, sunrise is at 6:20 am and sunset at 5:55 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:08 pm IST.

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

January, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Usilampatti, India.

In Usilampatti, the average daily maximum UV index in December is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Usilampatti, India

  • Average high temperature in December: 27.2°C

The warmest month (with the highest average high temperature) is April (34.8°C).
The month with the lowest average high temperature is December (27.2°C).

  • Average low temperature in December: 17.5°C

The month with the highest average low temperature is May (24.2°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).

Average pressure in December
Usilampatti, India

  • Average pressure in December: 1011.6mbar

The month with the highest atmospheric pressure is January (1012.8mbar).
The months with the lowest atmospheric pressure are May and June (1007.5mbar).

Average wind speed in December
Usilampatti, India

  • Average wind speed in December: 6.6km/h

The windiest month (with the highest average wind speed) is July (13.6km/h).
The calmest month (with the lowest average wind speed) is November (5.9km/h).

Average humidity in December
Usilampatti, India

  • Average humidity in December: 78%

The months with the highest relative humidity are November and December (78%).
The months with the lowest relative humidity are March and April (55%).

Average rainfall in December
Usilampatti, India

  • Average rainfall in December: 56mm

The wettest month (with the highest rainfall) is October (216mm).
The driest month (with the least rainfall) is January (12mm).

Average rainfall days in December
Usilampatti, India

  • Average rainfall days in December: 14.7 days

The month with the highest number of rainy days is October (23.9 days).
The month with the least rainy days is January (5 days).

Average daylight in December /
Average sunshine in December
Usilampatti, India

  • Average daylight in December: 11h and 36min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in December: 7h and 36min

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).

Average sunshine days in December
Usilampatti, India

  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is October (4.5 days).

Average UV index in December
Usilampatti, India

  • Average UV index in December: 6

The months with the highest UV index are February, March, April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, October, November and December (UV index 6).

Average cloud cover in December
Usilampatti, India

  • Average cloud cover in December: 34

The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is March (Cloud cover 15).

Average visibility in December
Usilampatti, India

  • Average visibility in December: 9km

The months with the highest visibility are February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are January, October, November and December (9km).