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
December's weather displays an average high-temperature of a still warm 28.5°C (83.3°F), slightly varied from November's 29.1°C (84.4°F). Vannivilankulam registers an average low-temperature of 25°C (77°F) throughout December, a modest decrease from its daytime highs.Heat index
During December, the heat index is estimated at a hot 33°C (91.4°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
The months with the highest humidity are November and December, with an average relative humidity of 79%.Rainfall
In December, in Vannivilankulam, the rain falls for 20.5 days. Throughout December, 130mm (5.12") of precipitation is accumulated. In Vannivilankulam, during the entire year, the rain falls for 181.2 days and collects up to 849mm (33.43") of precipitation.Daylight
With an average of 11h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:08 and sunset at 17:46. On the last day of December, sunrise is at 06:23 and sunset at 17:59 +0530.
Sunshine
The months with the least sunshine in Vannivilankulam are November and December, with an average of 5.7h of sunshine.UV index
The months with the highest UV index are January through October and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 7 during December morphs into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days in Vannivilankulam?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Vannivilankulam have in December?
What is the month with the highest UV index?
How high is the UV index in December in Vannivilankulam?
Average temperature in December
Vannivilankulam, Sri Lanka
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is April (31.4°C).
The month with the lowest average high temperature is January (28.4°C).
- Average low temperature in December: 25°C
The month with the highest average low temperature is May (28.1°C).
The coldest month (with the lowest average low temperature) is February (23.9°C).
Average pressure in December
Vannivilankulam, Sri Lanka
- Average pressure in December: 1010.8mbar
The month with the highest atmospheric pressure is January (1012.2mbar).
The month with the lowest atmospheric pressure is June (1006.5mbar).
Average wind speed in December
Vannivilankulam, Sri Lanka
- Average wind speed in December: 20km/h
The windiest month (with the highest average wind speed) is June (32.4km/h).
The calmest month (with the lowest average wind speed) is April (15.4km/h).
Average humidity in December
Vannivilankulam, Sri Lanka
- Average humidity in December: 79%
The months with the highest relative humidity are November and December (79%).
The month with the lowest relative humidity is March (75%).
Average rainfall in December
Vannivilankulam, Sri Lanka
- Average rainfall in December: 130mm
The wettest month (with the highest rainfall) is November (207mm).
The driest month (with the least rainfall) is June (28mm).
Average rainfall days in December
Vannivilankulam, Sri Lanka
- Average rainfall days in December: 20.5 days
The months with the highest number of rainy days are October and November (23.8 days).
The month with the least rainy days is February (9.1 days).
Average daylight in December /
Average sunshine in December
Vannivilankulam, Sri Lanka
- Average daylight in December: 11h and 4min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 5h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 42min).
Average sunshine days in December
Vannivilankulam, Sri Lanka
- Average sunshine days in December: 8 days
The month with the most sunshine days is March (19 days).
The month with the least sunshine days is November (4.4 days).
Average UV index in December
Vannivilankulam, Sri Lanka
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October and December (UV index 7).
The month with the lowest UV index is November (UV index 6).
Average cloud cover in December
Vannivilankulam, Sri Lanka
- 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 18).
Average visibility in December
Vannivilankulam, Sri Lanka
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
