December weather forecastRoyapettah, India
December
Weather in December
December, the first month of the winter in Royapettah, is also a moderately hot month, with an average temperature fluctuating between 23.5°C (74.3°F) and 27.9°C (82.2°F).Temperature
Temperature readings reach their annual highs in December, averaging 27.9°C (82.2°F) and a minimum average of 23.5°C (74.3°F).Heat index
December's heat index is calculated to be a tropical 31°C (87.8°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
November and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Royapettah, during December, the rain falls for 15.2 days and regularly aggregates up to 92mm (3.62") of precipitation. Throughout the year, in Royapettah, there are 169.2 rainfall days, and 825mm (32.48") of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 11h and 24min of daylight.On the first day of December in Royapettah, sunrise is at 6:15 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 5:53 pm IST.
Sunshine
The months with the least sunshine are November and December, with an average of 6.2h of sunshine.UV index
The months with the lowest UV index in Royapettah, India, are January, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 6 during December translates into the following directions:
Deflect overexposure. Sun protection is a necessity. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Royapettah, India
- Average high temperature in December: 27.9°C
The warmest month (with the highest average high temperature) is May (36.8°C).
The month with the lowest average high temperature is December (27.9°C).
- Average low temperature in December: 23.5°C
The month with the highest average low temperature is May (29.4°C).
The coldest month (with the lowest average low temperature) is January (22.6°C).
Average pressure in December
Royapettah, India
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is January (1013.6mbar).
The month with the lowest atmospheric pressure is June (1004.2mbar).
Average wind speed in December
Royapettah, India
- Average wind speed in December: 16.1km/h
The windiest month (with the highest average wind speed) is May (17.3km/h).
The calmest month (with the lowest average wind speed) is October (11.6km/h).
Average humidity in December
Royapettah, India
- Average humidity in December: 76%
The months with the highest relative humidity are November and December (76%).
The month with the lowest relative humidity is June (58%).
Average rainfall in December
Royapettah, India
- Average rainfall in December: 92mm
The wettest month (with the highest rainfall) is November (191mm).
The driest month (with the least rainfall) is February (6mm).
Average rainfall days in December
Royapettah, India
- Average rainfall days in December: 15.2 days
The month with the highest number of rainy days is September (25 days).
The month with the least rainy days is February (3.4 days).
Average daylight in December /
Average sunshine in December
Royapettah, India
- Average daylight in December: 11h and 24min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in December: 6h and 12min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 12min).
Average sunshine days in December
Royapettah, India
- Average sunshine days in December: 12 days
The month with the most sunshine days is March (25.8 days).
The month with the least sunshine days is September (3.5 days).
Average UV index in December
Royapettah, 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, November and December (UV index 6).
Average cloud cover in December
Royapettah, India
- Average cloud cover in December: 39
The month with the most cloud cover is August (Cloud cover 42).
The months with the least cloud cover are March and April (Cloud cover 13).
Average visibility in December
Royapettah, India
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
