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
Weather in December
Temperature
Vankalai, Sri Lanka, records an average high-temperature of a still warm 28.5°C (83.3°F) in December, closely mirroring the climate of the previous month. Night temperatures during December in Vankalai stabilize at an average of 25°C (77°F), closely mirroring the daytime temperatures.Heat index
The average heat index in December is calculated to be a hot 33°C (91.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The months with the highest humidity are November and December, with an average relative humidity of 79%.Rainfall
In Vankalai, in December, during 20.5 rainfall days, 130mm (5.12") of precipitation is typically accumulated. In Vankalai, 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 06:10 and sunset at 17:48. On the last day of December, in Vankalai, sunrise is at 06:24 and sunset at 18:01 +0530.
Sunshine
November and December, with an average of 5.7h of sunshine, are months with the least sunshine in Vankalai.UV index
The months with the highest UV index in Vankalai are January through October and December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
How hot is December in Vankalai?
What are the most humid months in Vankalai?
What is the average humidity in December in Vankalai?
How many days does it rain in December in Vankalai?
What is the month with the shortest days in Vankalai?
What is the average length of the day in December in Vankalai?
What time are sunrise and sunset in December in Vankalai?
What is the month with the least sunshine in Vankalai?
How long on average sun shines in December in Vankalai?
What is the month with the highest UV index in Vankalai?
What is the UV index intensity in December in Vankalai?
Average temperature in December
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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
Vankalai, 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).
Vankalai, Sri Lanka
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