December weather forecastVettavalam, India
December
Weather in December
December, the first month of the winter in Vettavalam, is still a warm month, with an average temperature fluctuating between 19.5°C (67.1°F) and 28.2°C (82.8°F).Temperature
With average high temperatures of 28.2°C (82.8°F) and lows of 19.5°C (67.1°F), December is the coldest month.Heat index
The average heat index in December is appraised at a tropical 32°C (89.6°F). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Humidity
In December, the average relative humidity in Vettavalam is 78%.Rainfall
In Vettavalam, in December, during 11.3 rainfall days, 17mm (0.67") of precipitation is typically accumulated. Throughout the year, there are 143.1 rainfall days, and 343mm (13.5") of precipitation is accumulated.Daylight
The month with the shortest days in Vettavalam is December, with an average of 11h and 24min of daylight.On the first day of the month, sunrise is at 6:18 am and sunset at 5:46 pm. On the last day of December, in Vettavalam, sunrise is at 6:33 am and sunset at 5:58 pm IST.
Sunshine
The average sunshine in December in Vettavalam, India, is 5.9h.UV index
The months with the lowest UV index in Vettavalam are January, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 6 transforms into these recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vettavalam, India
- Average high temperature in December: 28.2°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 (28.2°C).
- Average low temperature in December: 19.5°C
The month with the highest average low temperature is May (28°C).
The coldest month (with the lowest average low temperature) is January (18.6°C).
Average pressure in December
Vettavalam, India
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is January (1014mbar).
The month with the lowest atmospheric pressure is June (1005.4mbar).
Average wind speed in December
Vettavalam, India
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is July (14.1km/h).
The calmest month (with the lowest average wind speed) is October (7.3km/h).
Average humidity in December
Vettavalam, India
- Average humidity in December: 78%
The month with the highest relative humidity is November (79%).
The month with the lowest relative humidity is May (49%).
Average rainfall in December
Vettavalam, India
- Average rainfall in December: 17mm
The wettest month (with the highest rainfall) is October (65mm).
The driest months (with the least rainfall) are January and February (4mm).
Average rainfall days in December
Vettavalam, India
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (3.3 days).
Average daylight in December /
Average sunshine in December
Vettavalam, India
- Average daylight in December: 11h and 24min
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 24min).
- Average sunshine in December: 5h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 42min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in December
Vettavalam, India
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is January (24.9 days).
The months with the least sunshine days are September and October (8.6 days).
Average UV index in December
Vettavalam, India
- Average UV index in December: 6
The months with the highest UV index are April, May and June (UV index 8).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in December
Vettavalam, India
- Average cloud cover in December: 39
The month with the most cloud cover is November (Cloud cover 42).
The month with the least cloud cover is March (Cloud cover 15).
Average visibility in December
Vettavalam, 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).





