December weather forecastSwamimalai, India
December
Weather in December
The first month of the winter, December, is also a moderately hot month in Swamimalai, India, with an average temperature fluctuating between 21.7°C (71.1°F) and 28.9°C (84°F).Temperature
December is the month when Swamimalai experiences its coldest temperatures, averaging a high of 28.9°C (84°F) and a low of 21.7°C (71.1°F).Heat index
Throughout December, the heat index is appraised at a torrid 35°C (95°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
The months with the highest humidity are November and December, with an average relative humidity of 81%.Rainfall
In December, in Swamimalai, the rain falls for 17 days. Throughout December, 72mm (2.83") of precipitation is accumulated. In Swamimalai, during the entire year, the rain falls for 178.4 days and collects up to 608mm (23.94") of precipitation.Daylight
The month with the shortest days is December, with an average of 11h and 30min of daylight.On the first day of December, sunrise is at 6:15 am and sunset at 5:47 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 6:00 pm IST.
Sunshine
November and December, with an average of 5.6h of sunshine, are months with the least sunshine.UV index
January, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Swamimalai. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. 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. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Swamimalai, India
- Average high temperature in December: 28.9°C
The warmest month (with the highest average high temperature) is May (38.8°C).
The month with the lowest average high temperature is December (28.9°C).
- Average low temperature in December: 21.7°C
The month with the highest average low temperature is May (28.3°C).
The coldest month (with the lowest average low temperature) is January (20.7°C).
Average pressure in December
Swamimalai, India
- Average pressure in December: 1011.8mbar
The month with the highest atmospheric pressure is January (1013.3mbar).
The month with the lowest atmospheric pressure is June (1005.4mbar).
Average wind speed in December
Swamimalai, India
- Average wind speed in December: 14.5km/h
The windiest month (with the highest average wind speed) is June (16.5km/h).
The calmest month (with the lowest average wind speed) is October (10km/h).
Average humidity in December
Swamimalai, India
- Average humidity in December: 81%
The months with the highest relative humidity are November and December (81%).
The month with the lowest relative humidity is June (52%).
Average rainfall in December
Swamimalai, India
- Average rainfall in December: 72mm
The wettest month (with the highest rainfall) is October (125mm).
The driest month (with the least rainfall) is February (9mm).
Average rainfall days in December
Swamimalai, India
- Average rainfall days in December: 17 days
The month with the highest number of rainy days is October (22.1 days).
The month with the least rainy days is February (4.8 days).
Average daylight in December /
Average sunshine in December
Swamimalai, India
- Average daylight in December: 11h and 30min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is May (Average sunshine: 11h and 30min).
The months with the least sunshine are November and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Swamimalai, India
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is March (22.5 days).
The month with the least sunshine days is October (7.1 days).
Average UV index in December
Swamimalai, India
- Average UV index in December: 6
The months with the highest UV index are April, May, June and July (UV index 8).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in December
Swamimalai, India
- Average cloud cover in December: 43
The months with the most cloud cover are November and December (Cloud cover 43).
The month with the least cloud cover is March (Cloud cover 17).
Average visibility in December
Swamimalai, India
- Average visibility in December: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, November and December (9km).





