December weather forecastMandapam, India
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Mandapam, India, with an average temperature varying between 25.8°C (78.4°F) and 27.2°C (81°F).Temperature
As Mandapam transitions from November to December, the average high-temperatures adjust to a still moderately hot 27.2°C (81°F), nearly the same as the previous 28.1°C (82.6°F). December nights witness a slight temperature decrease, averaging at a still warm 25.8°C (78.4°F).Heat index
Throughout December, the heat index is computed to be a tropical 30°C (86°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humidity
In Mandapam, the average relative humidity in December is 78%.Rainfall
In December, in Mandapam, the rain falls for 22.7 days. Throughout December, 163mm (6.42") of precipitation is accumulated. Throughout the year, in Mandapam, there are 169.2 rainfall days, and 960mm (37.8") of precipitation is accumulated.Daylight
December has the shortest days of the year in Mandapam, with an average of 11h and 36min of daylight.On the first day of December, sunrise is at 6:13 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 6:04 pm IST.
Sunshine
The average sunshine in December is 6.3h.UV index
January through September and December, with an average maximum UV index of 7, are months with the highest UV index in Mandapam. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mandapam, India
- Average high temperature in December: 27.2°C
The warmest month (with the highest average high temperature) is May (30.2°C).
The month with the lowest average high temperature is January (26.7°C).
- Average low temperature in December: 25.8°C
The month with the highest average low temperature is May (28.9°C).
The coldest month (with the lowest average low temperature) is January (25.4°C).
Average pressure in December
Mandapam, India
- Average pressure in December: 1011mbar
The month with the highest atmospheric pressure is January (1012.4mbar).
The month with the lowest atmospheric pressure is June (1006.4mbar).
Average wind speed in December
Mandapam, India
- Average wind speed in December: 25.9km/h
The windiest month (with the highest average wind speed) is June (32.5km/h).
The calmest month (with the lowest average wind speed) is April (17.7km/h).
Average humidity in December
Mandapam, India
- Average humidity in December: 78%
The months with the highest relative humidity are May, August and September (79%).
The month with the lowest relative humidity is March (76%).
Average rainfall in December
Mandapam, India
- Average rainfall in December: 163mm
The wettest month (with the highest rainfall) is November (254mm).
The driest month (with the least rainfall) is July (10mm).
Average rainfall days in December
Mandapam, India
- Average rainfall days in December: 22.7 days
The month with the highest number of rainy days is November (25.3 days).
The month with the least rainy days is July (5.4 days).
Average daylight in December /
Average sunshine in December
Mandapam, 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: 6h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in December
Mandapam, India
- Average sunshine days in December: 5.2 days
The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is November (3.8 days).
Average UV index in December
Mandapam, India
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September and December (UV index 7).
The months with the lowest UV index are October and November (UV index 6).
Average cloud cover in December
Mandapam, India
- Average cloud cover in December: 44
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is March (Cloud cover 16).
Average visibility in December
Mandapam, India
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).





