Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Mettur records the coldest temperatures in December, averaging a high of 28.4°C (83.1°F) and a low of 18.2°C (64.8°F).Heat index
For December, the heat index is calculated to be a hot 32°C (89.6°F). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In December, the average relative humidity is 74%.Rainfall
In December, the rain falls for 11.6 days. Throughout December, 27mm (1.06") of precipitation is accumulated. Throughout the year, there are 181.8 rainfall days, and 755mm (29.72") of precipitation is accumulated.Daylight
With an average of 11h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:23 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:05 pm IST.
Sunshine
The average sunshine in December in Mettur is 7h.UV index
January, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Mettur. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year in Mettur?
Is it hot in Mettur during December?
What is the average humidity in December in Mettur?
How much does it rain in Mettur in December?
What is the month with the shortest days in Mettur?
What is the average length of the day in December in Mettur?
When are sunrise and sunset in December in Mettur?
How many hours of sunshine does Mettur have in December?
When is the lowest UV index in Mettur?
What is the UV index reading in December in Mettur?
Average temperature in December
Mettur, India
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is April (37.4°C).
The month with the lowest average high temperature is December (28.4°C).
- Average low temperature in December: 18.2°C
The month with the highest average low temperature is May (25.7°C).
The coldest month (with the lowest average low temperature) is January (17.4°C).
Average pressure in December
Mettur, India
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is January (1014.1mbar).
The month with the lowest atmospheric pressure is June (1007.6mbar).
Average wind speed in December
Mettur, India
- Average wind speed in December: 6.9km/h
The windiest month (with the highest average wind speed) is July (9.8km/h).
The calmest month (with the lowest average wind speed) is October (5.2km/h).
Average humidity in December
Mettur, India
- Average humidity in December: 74%
The month with the highest relative humidity is November (78%).
The months with the lowest relative humidity are March and April (47%).
Average rainfall in December
Mettur, India
- Average rainfall in December: 27mm
The wettest month (with the highest rainfall) is October (155mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in December
Mettur, India
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is October (23.5 days).
The month with the least rainy days is February (3.5 days).
Average daylight in December /
Average sunshine in December
Mettur, India
- Average daylight in December: 11h and 2min
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: 7h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).
Average sunshine days in December
Mettur, India
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is May (6.3 days).
Average UV index in December
Mettur, India
- Average UV index in December: 6
The months with the highest UV index are March, April and May (UV index 8).
The months with the lowest UV index are January, October, November and December (UV index 6).
Average cloud cover in December
Mettur, India
- Average cloud cover in December: 33
The month with the most cloud cover is November (Cloud cover 40).
The month with the least cloud cover is February (Cloud cover 12).
Average visibility in December
Mettur, India
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August and September (10km).
The months with the lowest visibility are October, November and December (9km).
